From 83c1bfceb1b681b4bb7253b47491be2d8b2014a1 Mon Sep 17 00:00:00 2001 From: debashisdeb Date: Fri, 20 Jun 2014 15:42:42 +0530 Subject: removing problem statements --- C++_from_the_Ground/Chapter_10(1).ipynb | 414 +++++++- C++_from_the_Ground/Chapter_11(1).ipynb | 632 ++++++++++++- C++_from_the_Ground/Chapter_12(1).ipynb | 648 +++++++++++-- C++_from_the_Ground/Chapter_13(1).ipynb | 694 +++++++++++++- C++_from_the_Ground/Chapter_14(1).ipynb | 698 +++++++++++++- C++_from_the_Ground/Chapter_15(1).ipynb | 322 ++++++- C++_from_the_Ground/Chapter_16(1).ipynb | 487 +++++++++- C++_from_the_Ground/Chapter_17(1).ipynb | 513 +++++++++- C++_from_the_Ground/Chapter_18(1).ipynb | 600 ++++++++++-- C++_from_the_Ground/Chapter_19(1).ipynb | 551 ++++++++++- C++_from_the_Ground/Chapter_2(1).ipynb | 243 ++++- C++_from_the_Ground/Chapter_20(2).ipynb | 43 +- C++_from_the_Ground/Chapter_21(1).ipynb | 902 ++++++++++++++++-- C++_from_the_Ground/Chapter_22(1).ipynb | 201 +++- C++_from_the_Ground/Chapter_3(1).ipynb | 329 ++++++- C++_from_the_Ground/Chapter_4(1).ipynb | 1063 +++++++++++++++++++-- C++_from_the_Ground/Chapter_5(1).ipynb | 731 ++++++++++++--- C++_from_the_Ground/Chapter_6(1).ipynb | 355 ++++++- C++_from_the_Ground/Chapter_7(1).ipynb | 591 ++++++++++-- C++_from_the_Ground/Chapter_8(1).ipynb | 1553 ++++++++++++++++++++++++++++++- C++_from_the_Ground/Chapter_9(1).ipynb | 547 +++++++++-- 21 files changed, 11119 insertions(+), 998 deletions(-) (limited to 'C++_from_the_Ground') diff --git a/C++_from_the_Ground/Chapter_10(1).ipynb b/C++_from_the_Ground/Chapter_10(1).ipynb index 6196736b..77fa05ce 100644 --- a/C++_from_the_Ground/Chapter_10(1).ipynb +++ b/C++_from_the_Ground/Chapter_10(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 10" + "name": "", + "signature": "sha256:369d1716e7a65538ad06381f5a1cdafc97ddfbad9ccd970d060ca5c894a6593b" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,141 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 10: Structures and Unions

" + "source": [ + "

Chapter 10: Structures and Unions

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 10.1, Page Number: 223

" + "source": [ + "

Example 10.1, Page Number: 223

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A simple inventory prohram that uses an array of structures/ '''\n'''Implementing structures in python'''\n\n\nclass inv_type:\n def __init__(self):\n self.item=None\n self.cost=0\n self.retail=0\n self.on_hand=0\n self.lead_time=0\n\n#Variable declaration\nsize=100 \ninvtry = []*size\ni=5 #User iput for menu selection\n\n#Initialize the array\ndef init_list():\n for t in range(size):\n invtry.append(inv_type())\n \n#get a menu selection\ndef menu():\n global i\n print \"(E)nter\"\n print \"(D)isplay\"\n print \"(U)pdate\"\n print \"(Q)uit\"\n print \"choose one: \"\n i-=1\n return i\n\n#enter items into the list\ndef enter():\n #find the first free structure\n for i in range(size):\n if not(invtry[i].item==None):\n break\n #i will be size if list is full\n if i==size:\n print \"List full.\"\n return\n input(i)\n \n#Input the information\ndef input(i):\n #Enter information; User input\n invtry[i].item=\"Gloves\"\n invtry[i].cost=10\n invtry[i].retail=25\n invtry[i].on_hand=50\n invtry[i].lead_time=10\n \n#Modify an existing item\ndef update():\n name=\"Gloves\" #User input\n for i in range(size):\n if not(name==invtry[i].item):\n break\n if i==size:\n print \"Item not found.\"\n return\n print \"Enter new information.\"\n input(i)\n \n#Display the list\ndef display():\n for t in range(size):\n if not(invtry[t].item==None):\n print invtry[t].item\n print \"Cost: $\",invtry[t].cost\n print \"Retail: $\",invtry[t].retail\n print \"On hand: \",invtry[t].on_hand\n print \"Resupply time: \",invtry[t].lead_time,\" days\"\n \n\ninit_list()\nwhile True:\n choice=menu()\n if choice==4:\n enter()\n elif choice==3:\n display()\n elif choice==2:\n update()\n elif choice==1:\n break", + "input": [ + "\n", + "class inv_type:\n", + " def __init__(self):\n", + " self.item=None\n", + " self.cost=0\n", + " self.retail=0\n", + " self.on_hand=0\n", + " self.lead_time=0\n", + "\n", + "#Variable declaration\n", + "size=100 \n", + "invtry = []*size\n", + "i=5 #User iput for menu selection\n", + "\n", + "#Initialize the array\n", + "def init_list():\n", + " for t in range(size):\n", + " invtry.append(inv_type())\n", + " \n", + "#get a menu selection\n", + "def menu():\n", + " global i\n", + " print \"(E)nter\"\n", + " print \"(D)isplay\"\n", + " print \"(U)pdate\"\n", + " print \"(Q)uit\"\n", + " print \"choose one: \"\n", + " i-=1\n", + " return i\n", + "\n", + "#enter items into the list\n", + "def enter():\n", + " #find the first free structure\n", + " for i in range(size):\n", + " if not(invtry[i].item==None):\n", + " break\n", + " #i will be size if list is full\n", + " if i==size:\n", + " print \"List full.\"\n", + " return\n", + " input(i)\n", + " \n", + "#Input the information\n", + "def input(i):\n", + " #Enter information; User input\n", + " invtry[i].item=\"Gloves\"\n", + " invtry[i].cost=10\n", + " invtry[i].retail=25\n", + " invtry[i].on_hand=50\n", + " invtry[i].lead_time=10\n", + " \n", + "#Modify an existing item\n", + "def update():\n", + " name=\"Gloves\" #User input\n", + " for i in range(size):\n", + " if not(name==invtry[i].item):\n", + " break\n", + " if i==size:\n", + " print \"Item not found.\"\n", + " return\n", + " print \"Enter new information.\"\n", + " input(i)\n", + " \n", + "#Display the list\n", + "def display():\n", + " for t in range(size):\n", + " if not(invtry[t].item==None):\n", + " print invtry[t].item\n", + " print \"Cost: $\",invtry[t].cost\n", + " print \"Retail: $\",invtry[t].retail\n", + " print \"On hand: \",invtry[t].on_hand\n", + " print \"Resupply time: \",invtry[t].lead_time,\" days\"\n", + " \n", + "\n", + "init_list()\n", + "while True:\n", + " choice=menu()\n", + " if choice==4:\n", + " enter()\n", + " elif choice==3:\n", + " display()\n", + " elif choice==2:\n", + " update()\n", + " elif choice==1:\n", + " break" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "(E)nter\n(D)isplay\n(U)pdate\n(Q)uit\nchoose one: \n(E)nter\n(D)isplay\n(U)pdate\n(Q)uit\nchoose one: \nGloves\nCost: $ 10\nRetail: $ 25\nOn hand: 50\nResupply time: 10 days\n(E)nter\n(D)isplay\n(U)pdate\n(Q)uit\nchoose one: \nEnter new information.\n(E)nter\n(D)isplay\n(U)pdate\n(Q)uit\nchoose one: \n" + "text": [ + "(E)nter\n", + "(D)isplay\n", + "(U)pdate\n", + "(Q)uit\n", + "choose one: \n", + "(E)nter\n", + "(D)isplay\n", + "(U)pdate\n", + "(Q)uit\n", + "choose one: \n", + "Gloves\n", + "Cost: $ 10\n", + "Retail: $ 25\n", + "On hand: 50\n", + "Resupply time: 10 days\n", + "(E)nter\n", + "(D)isplay\n", + "(U)pdate\n", + "(Q)uit\n", + "choose one: \n", + "Enter new information.\n", + "(E)nter\n", + "(D)isplay\n", + "(U)pdate\n", + "(Q)uit\n", + "choose one: \n" + ] } ], "prompt_number": 11 @@ -35,19 +153,43 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 10.2, Page Number: 226

" + "source": [ + "

Example 10.2, Page Number: 226

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Pass a structure(class) to a function'''\n\n#Define a structure(class) type\nclass sample:\n a=None\n ch=None\n \ndef f1(parm):\n print parm.a,\" \",parm.ch\n\n#declare arg\narg=sample() \n\n#initialize arg\narg.a=1000\narg.ch='X'\n\n#call function\nf1(arg)\n ", + "input": [ + "\n", + "\n", + "class sample:\n", + " a=None\n", + " ch=None\n", + " \n", + "def f1(parm):\n", + " print parm.a,\" \",parm.ch\n", + "\n", + "#declare arg\n", + "arg=sample() \n", + "\n", + "#initialize arg\n", + "arg.a=1000\n", + "arg.ch='X'\n", + "\n", + "#call function\n", + "f1(arg)\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1000 X\n" + "text": [ + "1000 X\n" + ] } ], "prompt_number": 12 @@ -55,19 +197,52 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 10.3, Page Number: 227

" + "source": [ + "

Example 10.3, Page Number: 227

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate structure assignments.'''\n\nclass stype:\n a=None\n b=None\n\n#Variable declaration\nsvar1=stype()\nsvar2=stype()\n\nsvar1.a=svar1.b=10\nsvar2.a=svar2.b=20\n\nprint \"Structures before assignment.\"\nprint \"svar1: \",svar1.a,' ',svar1.b\nprint \"svar1: \",svar2.a,' ',svar2.b\n\nsvar2=svar1 #assign structures\n\n#Result\nprint \"\\nStructures before assignment.\"\nprint \"svar1: \",svar1.a,' ',svar1.b\nprint \"svar1: \",svar2.a,' ',svar2.b", + "input": [ + "\n", + "class stype:\n", + " a=None\n", + " b=None\n", + "\n", + "#Variable declaration\n", + "svar1=stype()\n", + "svar2=stype()\n", + "\n", + "svar1.a=svar1.b=10\n", + "svar2.a=svar2.b=20\n", + "\n", + "print \"Structures before assignment.\"\n", + "print \"svar1: \",svar1.a,' ',svar1.b\n", + "print \"svar1: \",svar2.a,' ',svar2.b\n", + "\n", + "svar2=svar1 #assign structures\n", + "\n", + "#Result\n", + "print \"\\nStructures before assignment.\"\n", + "print \"svar1: \",svar1.a,' ',svar1.b\n", + "print \"svar1: \",svar2.a,' ',svar2.b" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Structures before assignment.\nsvar1: 10 10\nsvar1: 20 20\n\nStructures before assignment.\nsvar1: 10 10\nsvar1: 10 10\n" + "text": [ + "Structures before assignment.\n", + "svar1: 10 10\n", + "svar1: 20 20\n", + "\n", + "Structures before assignment.\n", + "svar1: 10 10\n", + "svar1: 10 10\n" + ] } ], "prompt_number": 13 @@ -75,19 +250,32 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 10.4, Page Number: 230

" + "source": [ + "

Example 10.4, Page Number: 230

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''This program displays the current system time.'''\n\nimport datetime\n\ndate=datetime.datetime.now()\n\n#Result\nprint date.time()", + "input": [ + "\n", + "\n", + "import datetime\n", + "\n", + "date=datetime.datetime.now()\n", + "\n", + "#Result\n", + "print date.time()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "17:06:28.236000\n" + "text": [ + "17:06:28.236000\n" + ] } ], "prompt_number": 14 @@ -95,19 +283,31 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 10.5, Page Number: 231

" + "source": [ + "

Example 10.5, Page Number: 231

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''This program displays the current system time.'''\n\nimport datetime\n\ndate=datetime.datetime.now()\n\n#Result\nprint date.ctime()", + "input": [ + "\n", + "import datetime\n", + "\n", + "date=datetime.datetime.now()\n", + "\n", + "#Result\n", + "print date.ctime()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Sat Sep 14 17:07:14 2013\n" + "text": [ + "Sat Sep 14 17:07:14 2013\n" + ] } ], "prompt_number": 15 @@ -115,19 +315,55 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 10.6, Page Number: 232

" + "source": [ + "

Example 10.6, Page Number: 232

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate a reference to a structure'''\n\nclass mystruct:\n a=None\n b=None\n\n#Recieve and return by reference\ndef f(var):\n var[0].a=var[0].a*var[0].a\n var[0].b=var[0].b/var[0].b\n return var[0]\n \n#Variable declaration\nx=[]\nx.append(mystruct())\ny=mystruct()\n\n#Initializing\nx[0].a=10\nx[0].b=20\n\nprint \"Original x.a and x.b: \",x[0].a,' ',x[0].b\n\ny=f(x) #function call\n\n#Result\nprint \"Modified x.a and x.b: \",x[0].a,' ',x[0].b\nprint \"Modified y.a and y.b: \",y.a,' ',y.b\n\n", + "input": [ + "\n", + "\n", + "class mystruct:\n", + " a=None\n", + " b=None\n", + "\n", + "#Recieve and return by reference\n", + "def f(var):\n", + " var[0].a=var[0].a*var[0].a\n", + " var[0].b=var[0].b/var[0].b\n", + " return var[0]\n", + " \n", + "#Variable declaration\n", + "x=[]\n", + "x.append(mystruct())\n", + "y=mystruct()\n", + "\n", + "#Initializing\n", + "x[0].a=10\n", + "x[0].b=20\n", + "\n", + "print \"Original x.a and x.b: \",x[0].a,' ',x[0].b\n", + "\n", + "y=f(x) #function call\n", + "\n", + "#Result\n", + "print \"Modified x.a and x.b: \",x[0].a,' ',x[0].b\n", + "print \"Modified y.a and y.b: \",y.a,' ',y.b\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Original x.a and x.b: 10 20\nModified x.a and x.b: 100 1\nModified y.a and y.b: 100 1\n" + "text": [ + "Original x.a and x.b: 10 20\n", + "Modified x.a and x.b: 100 1\n", + "Modified y.a and y.b: 100 1\n" + ] } ], "prompt_number": 16 @@ -135,19 +371,61 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 10.7, Page Number: 239

" + "source": [ + "

Example 10.7, Page Number: 239

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Use a union to exchange the bytes within a short integer'''\n#Class used in place of union \n\nclass swap_bytes:\n ch=[0,0]\n\n#Exchange of bytes\ndef disp_binary(u):\n t=128\n while not(t==0):\n if u&t:\n print \"1 \",\n else:\n print \"0 \",\n t=t/2\n\n#Variable declaration\nsb=swap_bytes()\n\nsb.ch[0]=15\n\nprint \"Original bytes: \",\ndisp_binary(sb.ch[1])\ndisp_binary(sb.ch[0])\n\n#Exchange bytes\ntemp=sb.ch[0]\nsb.ch[0]=sb.ch[1]\nsb.ch[1]=temp\n\n#Result\nprint \"\\nExchanged bytes: \",\ndisp_binary(sb.ch[1])\ndisp_binary(sb.ch[0])\n\n\n ", + "input": [ + "\n", + "\n", + "class swap_bytes:\n", + " ch=[0,0]\n", + "\n", + "#Exchange of bytes\n", + "def disp_binary(u):\n", + " t=128\n", + " while not(t==0):\n", + " if u&t:\n", + " print \"1 \",\n", + " else:\n", + " print \"0 \",\n", + " t=t/2\n", + "\n", + "#Variable declaration\n", + "sb=swap_bytes()\n", + "\n", + "sb.ch[0]=15\n", + "\n", + "print \"Original bytes: \",\n", + "disp_binary(sb.ch[1])\n", + "disp_binary(sb.ch[0])\n", + "\n", + "#Exchange bytes\n", + "temp=sb.ch[0]\n", + "sb.ch[0]=sb.ch[1]\n", + "sb.ch[1]=temp\n", + "\n", + "#Result\n", + "print \"\\nExchanged bytes: \",\n", + "disp_binary(sb.ch[1])\n", + "disp_binary(sb.ch[0])\n", + "\n", + "\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Original bytes: 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 \nExchanged bytes: 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 \n" + "text": [ + "Original bytes: 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 \n", + "Exchanged bytes: 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 \n" + ] } ], "prompt_number": 17 @@ -155,19 +433,66 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 10.8, Page Number: 240

" + "source": [ + "

Example 10.8, Page Number: 240

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Display the ASCII code in binary for characters'''\n\n#Variable declaration\nch='a'\n\nwhile True:\n print \"\\n\",ch,\n print bin(ord(ch)) #Display the bit pattern for each character\n ch=chr(ord(ch)+1)\n if ch=='r':\n break", + "input": [ + "\n", + "ch='a'\n", + "\n", + "while True:\n", + " print \"\\n\",ch,\n", + " print bin(ord(ch)) #Display the bit pattern for each character\n", + " ch=chr(ord(ch)+1)\n", + " if ch=='r':\n", + " break" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "\na 0b1100001\n\nb 0b1100010\n\nc 0b1100011\n\nd 0b1100100\n\ne 0b1100101\n\nf 0b1100110\n\ng 0b1100111\n\nh 0b1101000\n\ni 0b1101001\n\nj 0b1101010\n\nk 0b1101011\n\nl 0b1101100\n\nm 0b1101101\n\nn 0b1101110\n\no 0b1101111\n\np 0b1110000\n\nq 0b1110001\n" + "text": [ + "\n", + "a 0b1100001\n", + "\n", + "b 0b1100010\n", + "\n", + "c 0b1100011\n", + "\n", + "d 0b1100100\n", + "\n", + "e 0b1100101\n", + "\n", + "f 0b1100110\n", + "\n", + "g 0b1100111\n", + "\n", + "h 0b1101000\n", + "\n", + "i 0b1101001\n", + "\n", + "j 0b1101010\n", + "\n", + "k 0b1101011\n", + "\n", + "l 0b1101100\n", + "\n", + "m 0b1101101\n", + "\n", + "n 0b1101110\n", + "\n", + "o 0b1101111\n", + "\n", + "p 0b1110000\n", + "\n", + "q 0b1110001\n" + ] } ], "prompt_number": 18 @@ -175,19 +500,48 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 10.9, Page Number: 242

" + "source": [ + "

Example 10.9, Page Number: 242

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of an example of union in python'''\n\n#Variable declaration\nch=['X','Y']\nc=\"\"\ndef disp_bits(u):\n t=128\n global c\n while not(t==0):\n if u&t:\n c=c+\"1\"\n else:\n c=c+\"0\"\n t=t/2 \n return c\n\n#Result\nprint \"union as chars: \",ch[0],ch[1]\nprint \"union as integer: \",\nc= disp_bits(ord(ch[1]))\nc= disp_bits(ord(ch[0]))\nprint int(str(c),2)\n\n\n", + "input": [ + "\n", + "#Variable declaration\n", + "ch=['X','Y']\n", + "c=\"\"\n", + "def disp_bits(u):\n", + " t=128\n", + " global c\n", + " while not(t==0):\n", + " if u&t:\n", + " c=c+\"1\"\n", + " else:\n", + " c=c+\"0\"\n", + " t=t/2 \n", + " return c\n", + "\n", + "#Result\n", + "print \"union as chars: \",ch[0],ch[1]\n", + "print \"union as integer: \",\n", + "c= disp_bits(ord(ch[1]))\n", + "c= disp_bits(ord(ch[0]))\n", + "print int(str(c),2)\n", + "\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "union as chars: X Y\nunion as integer: 22872\n" + "text": [ + "union as chars: X Y\n", + "union as integer: 22872\n" + ] } ], "prompt_number": 19 @@ -195,7 +549,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_11(1).ipynb b/C++_from_the_Ground/Chapter_11(1).ipynb index b59e52c7..fdd70bcf 100644 --- a/C++_from_the_Ground/Chapter_11(1).ipynb +++ b/C++_from_the_Ground/Chapter_11(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 11" + "name": "", + "signature": "sha256:5428ee61d548a6c3eefd868dac96cac83b29f85d9bfd7876e9904bdfe87b0fad" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,78 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 11: Introducing the Class

" + "source": [ + "

Chapter 11: Introducing the Class

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.1, Page Number: 249

" + "source": [ + "

Example 11.1, Page Number: 249

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Illustration of a class in python'''\n\n#This creates the class queue\nclass queue:\n #Initialize the queue \n def __init__(self):\n self.__sloc=0\n self.__rloc=-1\n self.__q=[]\n \n #Put an integer into the queue\n def qput(self,i):\n if self.__sloc==100:\n print \"Queue is full.\"\n return\n self.__sloc+=1\n self.__q.append(i)\n \n #Get an integer from the queue\n def qget(self):\n if self.__rloc==self.__sloc:\n print \"Queue underflow\"\n return\n self.__rloc+=1\n return self.__q[self.__rloc] \n \n\n \n#Create two queue objects\nb=queue()\na=queue()\n\na.qput(10)\nb.qput(19)\n\na.qput(20)\nb.qput(1)\n\n#Result\nprint \"Contents of queue a: \",\nprint a.qget(),' ',a.qget()\n\nprint \"Contents of queue b: \",\nprint b.qget(),' ',b.qget()\n\n\n \n", + "input": [ + "\n", + "\n", + "class queue:\n", + " #Initialize the queue \n", + " def __init__(self):\n", + " self.__sloc=0\n", + " self.__rloc=-1\n", + " self.__q=[]\n", + " \n", + " #Put an integer into the queue\n", + " def qput(self,i):\n", + " if self.__sloc==100:\n", + " print \"Queue is full.\"\n", + " return\n", + " self.__sloc+=1\n", + " self.__q.append(i)\n", + " \n", + " #Get an integer from the queue\n", + " def qget(self):\n", + " if self.__rloc==self.__sloc:\n", + " print \"Queue underflow\"\n", + " return\n", + " self.__rloc+=1\n", + " return self.__q[self.__rloc] \n", + " \n", + "\n", + " \n", + "#Create two queue objects\n", + "b=queue()\n", + "a=queue()\n", + "\n", + "a.qput(10)\n", + "b.qput(19)\n", + "\n", + "a.qput(20)\n", + "b.qput(1)\n", + "\n", + "#Result\n", + "print \"Contents of queue a: \",\n", + "print a.qget(),' ',a.qget()\n", + "\n", + "print \"Contents of queue b: \",\n", + "print b.qget(),' ',b.qget()\n", + "\n", + "\n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Contents of queue a: 10 20\nContents of queue b: 19 1\n" + "text": [ + "Contents of queue a: 10 20\n", + "Contents of queue b: 19 1\n" + ] } ], "prompt_number": 3 @@ -35,19 +90,56 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.2, Page Number: 250

" + "source": [ + "

Example 11.2, Page Number: 250

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate class member access'''\n \nclass myclass:\n def __init__(self):\n self.__a=None #private member\n self.b=None #public member\n #public functions\n def setlab(self,i):\n self.__a=i #refer to a\n self.b=i*i #refer to b\n return\n def geta(self):\n return self.__a #refer to a\n def reset(self):\n #call setlab using self\n self.setlab(0) #the object is already known\n \n \nob=myclass()\nob.setlab(5) #set ob.a and ob.b\nprint \"ob after setlab(5): \",ob.geta(),' ',\nprint ob.b #can access b because it is public\n\nob.b=20 #can access b because it is public\nprint \"ob after ob.b=20: \",\nprint ob.geta(),' ',ob.b\n\nob.reset()\nprint \"ob after ob.reset(): \",ob.geta(),' ',ob.b\n\n", + "input": [ + "\n", + " \n", + "class myclass:\n", + " def __init__(self):\n", + " self.__a=None #private member\n", + " self.b=None #public member\n", + " #public functions\n", + " def setlab(self,i):\n", + " self.__a=i #refer to a\n", + " self.b=i*i #refer to b\n", + " return\n", + " def geta(self):\n", + " return self.__a #refer to a\n", + " def reset(self):\n", + " #call setlab using self\n", + " self.setlab(0) #the object is already known\n", + " \n", + " \n", + "ob=myclass()\n", + "ob.setlab(5) #set ob.a and ob.b\n", + "print \"ob after setlab(5): \",ob.geta(),' ',\n", + "print ob.b #can access b because it is public\n", + "\n", + "ob.b=20 #can access b because it is public\n", + "print \"ob after ob.b=20: \",\n", + "print ob.geta(),' ',ob.b\n", + "\n", + "ob.reset()\n", + "print \"ob after ob.reset(): \",ob.geta(),' ',ob.b\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "ob after setlab(5): 5 25\nob after ob.b=20: 5 20\nob after ob.reset(): 0 0\n" + "text": [ + "ob after setlab(5): 5 25\n", + "ob after ob.b=20: 5 20\n", + "ob after ob.reset(): 0 0\n" + ] } ], "prompt_number": 4 @@ -55,19 +147,74 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.3, Page Number: 254

" + "source": [ + "

Example 11.3, Page Number: 254

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate a constructor and a destructor'''\n#The destructors of python behave a little differently.\n\n#This creates the class queue\nclass queue:\n \n #Constructor\n def __init__(self): \n self.__q=[]\n self.__rloc=-1\n self.__sloc=0\n print \"Queue initialized\"\n \n #Destructor\n def __del__(self):\n print (\"Queue destroyed\")\n \n #Put an integer into the queue\n def qput(self,i):\n if self.__sloc == 100:\n print \"Queue is full\"\n return \n self.__sloc+=1\n self.__q.append(i)\n \n #Get an integer from the queue\n def qget(self):\n if self.__rloc==self.__sloc:\n print \"Queue underflow\"\n return\n self.__rloc+=1\n return self.__q[self.__rloc]\n \n#Create two queue objects\na=queue()\n\n\na.qput(10)\na.qput(20)\nb=queue()\nb.qput(19)\n\nb.qput(1)\n\n#Result\nprint a.qget(),' ',\nprint a.qget(),' ',\nprint b.qget(),' ',\nprint b.qget(),' '\n", + "input": [ + "\n", + "class queue:\n", + " \n", + " #Constructor\n", + " def __init__(self): \n", + " self.__q=[]\n", + " self.__rloc=-1\n", + " self.__sloc=0\n", + " print \"Queue initialized\"\n", + " \n", + " #Destructor\n", + " def __del__(self):\n", + " print (\"Queue destroyed\")\n", + " \n", + " #Put an integer into the queue\n", + " def qput(self,i):\n", + " if self.__sloc == 100:\n", + " print \"Queue is full\"\n", + " return \n", + " self.__sloc+=1\n", + " self.__q.append(i)\n", + " \n", + " #Get an integer from the queue\n", + " def qget(self):\n", + " if self.__rloc==self.__sloc:\n", + " print \"Queue underflow\"\n", + " return\n", + " self.__rloc+=1\n", + " return self.__q[self.__rloc]\n", + " \n", + "#Create two queue objects\n", + "a=queue()\n", + "\n", + "\n", + "a.qput(10)\n", + "a.qput(20)\n", + "b=queue()\n", + "b.qput(19)\n", + "\n", + "b.qput(1)\n", + "\n", + "#Result\n", + "print a.qget(),' ',\n", + "print a.qget(),' ',\n", + "print b.qget(),' ',\n", + "print b.qget(),' '\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Queue initialized\nQueue destroyed\nQueue initialized\nQueue destroyed\n10 20 19 1 \n" + "text": [ + "Queue initialized\n", + "Queue destroyed\n", + "Queue initialized\n", + "Queue destroyed\n", + "10 20 19 1 \n" + ] } ], "prompt_number": 2 @@ -75,19 +222,74 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.4, Page Number: 257

" + "source": [ + "

Example 11.4, Page Number: 257

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Parameterized Constructors'''\n\n#This creates the class queue\nclass queue: \n \n #Constructor\n def __init__(self,i): \n self.__q=[]\n self.__rloc=-1\n self.__sloc=0\n self.__who=i\n print \"Queue \",self.__who,\" initialized.\"\n \n #Destructor\n def __del__():\n print \"Queue \",self.__who,\" destroyed\"\n \n #Put an integer into the queue\n def qput(self,i):\n if self.__sloc == 100:\n print \"Queue is full\"\n return \n self.__sloc+=1\n self.__q.append(i)\n \n #Get an integer from the queue\n def qget(self):\n if self.__rloc==self.__sloc:\n print \"Queue underflow\"\n return\n self.__rloc+=1\n return self.__q[self.__rloc]\n \na=queue(1)\nb=queue(2)\n\na.qput(10)\nb.qput(19)\n\na.qput(20)\nb.qput(1)\n\n#Result\nprint a.qget(),' ',\nprint a.qget(),' ',\nprint b.qget(),' ',\nprint b.qget(),' '\n", + "input": [ + "\n", + "\n", + "class queue: \n", + " \n", + " #Constructor\n", + " def __init__(self,i): \n", + " self.__q=[]\n", + " self.__rloc=-1\n", + " self.__sloc=0\n", + " self.__who=i\n", + " print \"Queue \",self.__who,\" initialized.\"\n", + " \n", + " #Destructor\n", + " def __del__():\n", + " print \"Queue \",self.__who,\" destroyed\"\n", + " \n", + " #Put an integer into the queue\n", + " def qput(self,i):\n", + " if self.__sloc == 100:\n", + " print \"Queue is full\"\n", + " return \n", + " self.__sloc+=1\n", + " self.__q.append(i)\n", + " \n", + " #Get an integer from the queue\n", + " def qget(self):\n", + " if self.__rloc==self.__sloc:\n", + " print \"Queue underflow\"\n", + " return\n", + " self.__rloc+=1\n", + " return self.__q[self.__rloc]\n", + " \n", + "a=queue(1)\n", + "b=queue(2)\n", + "\n", + "a.qput(10)\n", + "b.qput(19)\n", + "\n", + "a.qput(20)\n", + "b.qput(1)\n", + "\n", + "#Result\n", + "print a.qget(),' ',\n", + "print a.qget(),' ',\n", + "print b.qget(),' ',\n", + "print b.qget(),' '\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Queue 1 initialized.\nQueue destroyed\nQueue 2 initialized.\nQueue destroyed\n10 20 19 1 \n" + "text": [ + "Queue 1 initialized.\n", + "Queue destroyed\n", + "Queue 2 initialized.\n", + "Queue destroyed\n", + "10 20 19 1 \n" + ] } ], "prompt_number": 3 @@ -95,19 +297,44 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.5, Page Number: 258

" + "source": [ + "

Example 11.5, Page Number: 258

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Passing more than a single arguments'''\nclass widget:\n \n #Pass two arguments to the constructor\n def __init__(self,a,b):\n self.__i=a\n self.__j=b\n \n def put_widget(self):\n print self.__i,\" \",self.__j\n\n#Initializing\nx=widget(10,20)\ny=widget(0,0)\n\nx.put_widget()\ny.put_widget()\n\n ", + "input": [ + "\n", + "class widget:\n", + " \n", + " #Pass two arguments to the constructor\n", + " def __init__(self,a,b):\n", + " self.__i=a\n", + " self.__j=b\n", + " \n", + " def put_widget(self):\n", + " print self.__i,\" \",self.__j\n", + "\n", + "#Initializing\n", + "x=widget(10,20)\n", + "y=widget(0,0)\n", + "\n", + "x.put_widget()\n", + "y.put_widget()\n", + "\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 20\n0 0\n" + "text": [ + "10 20\n", + "0 0\n" + ] } ], "prompt_number": 5 @@ -115,19 +342,40 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.6, Page Number: 259

" + "source": [ + "

Example 11.6, Page Number: 259

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An example of class'''\n\nclass myclass:\n \n #Constructor\n def __init__(self,x):\n self.a=x\n #To get the vale of a\n def get_a(self):\n return self.a\n\n#Initializing\nob=myclass(4)\n\n#Result\nprint ob.get_a()", + "input": [ + "\n", + "\n", + "class myclass:\n", + " \n", + " #Constructor\n", + " def __init__(self,x):\n", + " self.a=x\n", + " #To get the vale of a\n", + " def get_a(self):\n", + " return self.a\n", + "\n", + "#Initializing\n", + "ob=myclass(4)\n", + "\n", + "#Result\n", + "print ob.get_a()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "4\n" + "text": [ + "4\n" + ] } ], "prompt_number": 1 @@ -135,19 +383,44 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.7, Page Number: 260

" + "source": [ + "

Example 11.7, Page Number: 260

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Using structures to create a class'''\n\nfrom ctypes import *\n\nclass c1(Structure):\n _fields_=[(\"__i\", c_int)] #private member\n def get_i(self): #public finctions\n return self.__i\n def put_i(self,j):\n self.__i=j\n\n#Variable declaration\ns=c1()\n\ns.put_i(10)\n\n#Result\nprint s.get_i()\n \n ", + "input": [ + "\n", + "\n", + "from ctypes import *\n", + "\n", + "class c1(Structure):\n", + " _fields_=[(\"__i\", c_int)] #private member\n", + " def get_i(self): #public finctions\n", + " return self.__i\n", + " def put_i(self,j):\n", + " self.__i=j\n", + "\n", + "#Variable declaration\n", + "s=c1()\n", + "\n", + "s.put_i(10)\n", + "\n", + "#Result\n", + "print s.get_i()\n", + " \n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10\n" + "text": [ + "10\n" + ] } ], "prompt_number": 1 @@ -155,19 +428,42 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.8, Page Number: 261

" + "source": [ + "

Example 11.8, Page Number: 261

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Now we use class instead'''\n\nclass c1:\n def __init__(self):\n self.__i=None #private member\n def get_i(self): #public finctions\n return self.__i\n def put_i(self,j):\n self.__i=j\n\n#Variable declaration\ns=c1()\n\ns.put_i(10)\n\n#Result\nprint s.get_i()\n \n ", + "input": [ + "\n", + "class c1:\n", + " def __init__(self):\n", + " self.__i=None #private member\n", + " def get_i(self): #public finctions\n", + " return self.__i\n", + " def put_i(self,j):\n", + " self.__i=j\n", + "\n", + "#Variable declaration\n", + "s=c1()\n", + "\n", + "s.put_i(10)\n", + "\n", + "#Result\n", + "print s.get_i()\n", + " \n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10\n" + "text": [ + "10\n" + ] } ], "prompt_number": 2 @@ -175,19 +471,47 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.9, Page Number: 263

" + "source": [ + "

Example 11.9, Page Number: 263

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Create a union-based class'''\n\nfrom ctypes import *\n\n#Creates a union\nclass u_type(Union):\n _fields_ = [(\"i\",c_short),\n (\"ch\", c_char*2)]\n #Constructor\n def __init__(self,a):\n self.i=a\n \n #Show the characters that comprise a short int.\n def showchars(self):\n print self.ch[0]\n print self.ch[1]\n \n \nu=u_type(1000)\n\n#Displays char of 1000\nu.showchars()", + "input": [ + "\n", + "\n", + "from ctypes import *\n", + "\n", + "#Creates a union\n", + "class u_type(Union):\n", + " _fields_ = [(\"i\",c_short),\n", + " (\"ch\", c_char*2)]\n", + " #Constructor\n", + " def __init__(self,a):\n", + " self.i=a\n", + " \n", + " #Show the characters that comprise a short int.\n", + " def showchars(self):\n", + " print self.ch[0]\n", + " print self.ch[1]\n", + " \n", + " \n", + "u=u_type(1000)\n", + "\n", + "#Displays char of 1000\n", + "u.showchars()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "\ufffd\n\u0003\n" + "text": [ + "\ufffd\n", + "\u0003\n" + ] } ], "prompt_number": 2 @@ -195,19 +519,40 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.10, Page Number: 264

" + "source": [ + "

Example 11.10, Page Number: 264

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A simple class program'''\n#There is no inline function in python\n\nclass c1:\n def __init__(self):\n self.__i=None\n def get_i(self):\n return self.i\n def put_i(self,j):\n self.i=j\n\n#Variable declaration\ns=c1()\n\ns.put_i(10)\n\n#Result\nprint s.get_i()", + "input": [ + "\n", + "class c1:\n", + " def __init__(self):\n", + " self.__i=None\n", + " def get_i(self):\n", + " return self.i\n", + " def put_i(self,j):\n", + " self.i=j\n", + "\n", + "#Variable declaration\n", + "s=c1()\n", + "\n", + "s.put_i(10)\n", + "\n", + "#Result\n", + "print s.get_i()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10\n" + "text": [ + "10\n" + ] } ], "prompt_number": 2 @@ -215,19 +560,41 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.11, Page Number: 265

" + "source": [ + "

Example 11.11, Page Number: 265

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A simple class program'''\n#There is no inline functions in python\n\nclass c1:\n def __init__(self):\n self.__i=None\n def get_i(self):\n return self.i\n def put_i(self,j):\n self.i=j\n\n#Variable declaration\ns=c1()\n\ns.put_i(10)\n\n#Result\nprint s.get_i()", + "input": [ + "\n", + "\n", + "class c1:\n", + " def __init__(self):\n", + " self.__i=None\n", + " def get_i(self):\n", + " return self.i\n", + " def put_i(self,j):\n", + " self.i=j\n", + "\n", + "#Variable declaration\n", + "s=c1()\n", + "\n", + "s.put_i(10)\n", + "\n", + "#Result\n", + "print s.get_i()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10\n" + "text": [ + "10\n" + ] } ], "prompt_number": 3 @@ -235,19 +602,70 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.12, Page Number: 267

" + "source": [ + "

Example 11.12, Page Number: 267

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An example of arrays of objects'''\n\nclass display:\n def __init__(self):\n width=None\n height=None\n res=None\n def set_dim(self,w,h):\n self.width=w\n self.height=h\n def get_dim(self):\n return self.width,self.height\n def set_res(self,r):\n self.res=r\n def get_res(self):\n return self.res\n \n#Variable decleration\nnames=[\"low\",\"medium\",\"high\"] \n(low,medium,high)=(0,1,2) #For enumeration type\nw=None\nh=None\ndisplay_mode=[]*3\n\nfor i in range(3):\n display_mode.append(display())\n\n#Initialize the array of objects using member functions\ndisplay_mode[0].set_res(low)\ndisplay_mode[0].set_dim(640,480)\n\ndisplay_mode[1].set_res(medium)\ndisplay_mode[1].set_dim(800,600)\n\ndisplay_mode[2].set_res(high)\ndisplay_mode[2].set_dim(1600,1200)\n\n#Result\nprint \"Available display modes: \"\nfor i in range(3):\n print names[display_mode[i].get_res()],\" : \",\n w,h=display_mode[i].get_dim()\n print w,\" by \",h", + "input": [ + "\n", + "\n", + "class display:\n", + " def __init__(self):\n", + " width=None\n", + " height=None\n", + " res=None\n", + " def set_dim(self,w,h):\n", + " self.width=w\n", + " self.height=h\n", + " def get_dim(self):\n", + " return self.width,self.height\n", + " def set_res(self,r):\n", + " self.res=r\n", + " def get_res(self):\n", + " return self.res\n", + " \n", + "#Variable decleration\n", + "names=[\"low\",\"medium\",\"high\"] \n", + "(low,medium,high)=(0,1,2) #For enumeration type\n", + "w=None\n", + "h=None\n", + "display_mode=[]*3\n", + "\n", + "for i in range(3):\n", + " display_mode.append(display())\n", + "\n", + "#Initialize the array of objects using member functions\n", + "display_mode[0].set_res(low)\n", + "display_mode[0].set_dim(640,480)\n", + "\n", + "display_mode[1].set_res(medium)\n", + "display_mode[1].set_dim(800,600)\n", + "\n", + "display_mode[2].set_res(high)\n", + "display_mode[2].set_dim(1600,1200)\n", + "\n", + "#Result\n", + "print \"Available display modes: \"\n", + "for i in range(3):\n", + " print names[display_mode[i].get_res()],\" : \",\n", + " w,h=display_mode[i].get_dim()\n", + " print w,\" by \",h" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Available display modes: \nlow : 640 by 480\nmedium : 800 by 600\nhigh : 1600 by 1200\n" + "text": [ + "Available display modes: \n", + "low : 640 by 480\n", + "medium : 800 by 600\n", + "high : 1600 by 1200\n" + ] } ], "prompt_number": 3 @@ -255,19 +673,39 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.13, Page Number: 268

" + "source": [ + "

Example 11.13, Page Number: 268

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Initialize an array of objects'''\n\nclass samp:\n __a=None\n def __init__(self,n):\n self.__a=n\n def get_a(self):\n return self.__a\n\n#Initializing the list\nsampArray=[samp(-1),samp(-2),samp(-3),samp(-4)]\n\n#Display\nfor i in range(4):\n print sampArray[i].get_a(),' ',", + "input": [ + "\n", + "\n", + "class samp:\n", + " __a=None\n", + " def __init__(self,n):\n", + " self.__a=n\n", + " def get_a(self):\n", + " return self.__a\n", + "\n", + "#Initializing the list\n", + "sampArray=[samp(-1),samp(-2),samp(-3),samp(-4)]\n", + "\n", + "#Display\n", + "for i in range(4):\n", + " print sampArray[i].get_a(),' '," + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "-1 -2 -3 -4 \n" + "text": [ + "-1 -2 -3 -4 \n" + ] } ], "prompt_number": 4 @@ -275,19 +713,56 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.14, Page Number: 269

" + "source": [ + "

Example 11.14, Page Number: 269

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Two dimensional array if objects'''\n\nclass samp:\n __a=None\n __b=None\n def __init__(self,n,m):\n self.__a=n\n self.__b=m\n def get_a(self):\n return self.__a\n def get_b(self):\n return self.__b\n \n#Initializing the list\nsampArray=[[samp(1,2),samp(3,4)],\n [samp(5,6),samp(7,8)],\n [samp(9,10),samp(11,12)],\n [samp(13,14),samp(15,16)]]\n\n#Display\nfor i in range(4):\n print sampArray[i][0].get_a(),' ',\n print sampArray[i][0].get_b()\n print sampArray[i][1].get_a(),' ',\n print sampArray[i][1].get_b()", + "input": [ + "\n", + "\n", + "class samp:\n", + " __a=None\n", + " __b=None\n", + " def __init__(self,n,m):\n", + " self.__a=n\n", + " self.__b=m\n", + " def get_a(self):\n", + " return self.__a\n", + " def get_b(self):\n", + " return self.__b\n", + " \n", + "#Initializing the list\n", + "sampArray=[[samp(1,2),samp(3,4)],\n", + " [samp(5,6),samp(7,8)],\n", + " [samp(9,10),samp(11,12)],\n", + " [samp(13,14),samp(15,16)]]\n", + "\n", + "#Display\n", + "for i in range(4):\n", + " print sampArray[i][0].get_a(),' ',\n", + " print sampArray[i][0].get_b()\n", + " print sampArray[i][1].get_a(),' ',\n", + " print sampArray[i][1].get_b()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1 2\n3 4\n5 6\n7 8\n9 10\n11 12\n13 14\n15 16\n" + "text": [ + "1 2\n", + "3 4\n", + "5 6\n", + "7 8\n", + "9 10\n", + "11 12\n", + "13 14\n", + "15 16\n" + ] } ], "prompt_number": 5 @@ -295,19 +770,46 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.15, Page Number: 270

" + "source": [ + "

Example 11.15, Page Number: 270

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A simple example using an object pointer'''\n\nfrom ctypes import *\n\nclass P_example(Structure):\n __num=None\n def set_num(self,val):\n self.__num=val\n def show_num(self):\n print self.__num\n\n#Variable declaration\nob=P_example() #Declare an object to the structure\np=POINTER(P_example) #Declare a pointer to the structure\n\nob.set_num(1) #access ob directly\nob.show_num()\n\np=ob #assign p the address of ob\np.show_num() #access ob using pointer\n \n ", + "input": [ + "\n", + "from ctypes import *\n", + "\n", + "class P_example(Structure):\n", + " __num=None\n", + " def set_num(self,val):\n", + " self.__num=val\n", + " def show_num(self):\n", + " print self.__num\n", + "\n", + "#Variable declaration\n", + "ob=P_example() #Declare an object to the structure\n", + "p=POINTER(P_example) #Declare a pointer to the structure\n", + "\n", + "ob.set_num(1) #access ob directly\n", + "ob.show_num()\n", + "\n", + "p=ob #assign p the address of ob\n", + "p.show_num() #access ob using pointer\n", + " \n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1\n1\n" + "text": [ + "1\n", + "1\n" + ] } ], "prompt_number": 6 @@ -315,19 +817,47 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 11.16, Page Number: 271

" + "source": [ + "

Example 11.16, Page Number: 271

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Pointer to array of objects'''\n\nclass P_example(Structure):\n __num=None\n def set_num(self,val):\n self.__num=val\n def show_num(self):\n print self.__num\n \n#Variable declaration\nob=[P_example(),P_example()] #Declare an object to the structure\np=POINTER(P_example) #Declare a pointer to the structure\n\nob[0].set_num(10) #access objects directly\nob[1].set_num(20)\n\np=ob #obtain pointer to first element\np[0].show_num() #access ob using pointer\n\np[1].show_num()\n\np[0].show_num()\n", + "input": [ + "\n", + "class P_example(Structure):\n", + " __num=None\n", + " def set_num(self,val):\n", + " self.__num=val\n", + " def show_num(self):\n", + " print self.__num\n", + " \n", + "#Variable declaration\n", + "ob=[P_example(),P_example()] #Declare an object to the structure\n", + "p=POINTER(P_example) #Declare a pointer to the structure\n", + "\n", + "ob[0].set_num(10) #access objects directly\n", + "ob[1].set_num(20)\n", + "\n", + "p=ob #obtain pointer to first element\n", + "p[0].show_num() #access ob using pointer\n", + "\n", + "p[1].show_num()\n", + "\n", + "p[0].show_num()\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10\n20\n10\n" + "text": [ + "10\n", + "20\n", + "10\n" + ] } ], "prompt_number": 7 @@ -335,7 +865,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_12(1).ipynb b/C++_from_the_Ground/Chapter_12(1).ipynb index abad8d81..f92ff06c 100644 --- a/C++_from_the_Ground/Chapter_12(1).ipynb +++ b/C++_from_the_Ground/Chapter_12(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 12" + "name": "", + "signature": "sha256:16b30eb675083837fc31b76aa8f3c6bd5549baef25d739f4f8bead7d865cbcbf" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,51 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 12: A Closer Look at Classes

" + "source": [ + "

Chapter 12: A Closer Look at Classes

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 12.1, Page Number: 274

" + "source": [ + "

Example 12.1, Page Number: 274

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of friend functions in python'''\n\nclass myclass:\n __a=None\n __b=None\n def __init__(self,i,j):\n self.__a=i\n self.__b=j\n def sum(self,x): #Friend function\n return sum1(x)\n \ndef sum1(x): \n return x._myclass__a +x._myclass__b #accessing private members\n\n#Variable declaration\nn=myclass(3,4)\n\n#Result\nprint n.sum(n)\n\n", + "input": [ + "\n", + "\n", + "class myclass:\n", + " __a=None\n", + " __b=None\n", + " def __init__(self,i,j):\n", + " self.__a=i\n", + " self.__b=j\n", + " def sum(self,x): #Friend function\n", + " return sum1(x)\n", + " \n", + "def sum1(x): \n", + " return x._myclass__a +x._myclass__b #accessing private members\n", + "\n", + "#Variable declaration\n", + "n=myclass(3,4)\n", + "\n", + "#Result\n", + "print n.sum(n)\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "7\n" + "text": [ + "7\n" + ] } ], "prompt_number": 1 @@ -35,19 +63,65 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 12.2, Page Number: 275

" + "source": [ + "

Example 12.2, Page Number: 275

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Use a friend function'''\n\nclass c1:\n __status=None\n def set_status(self,state):\n self.__status=state\n \nclass c2:\n __status=None\n def set_status(self,state):\n self.status=state\n \n#Friend function \ndef idle(a,b):\n if a._c1__status or b._c2__status :\n return 0\n else:\n return 1\n \n#variable declarations\ndef IDLE(): #Constants\n return 0\ndef INUSE():\n return 1\nx=c1()\ny=c2()\n\nx.set_status(IDLE())\ny.set_status(IDLE())\n\nif idle(x,y):\n print \"Screen Can Be Used.\"\n \nx.set_status(INUSE())\n\nif idle(x,y):\n print \"Screen Can Be Used.\"\nelse:\n print \"Pop-up In Use.\"\n \n ", + "input": [ + "\n", + "class c1:\n", + " __status=None\n", + " def set_status(self,state):\n", + " self.__status=state\n", + " \n", + "class c2:\n", + " __status=None\n", + " def set_status(self,state):\n", + " self.status=state\n", + " \n", + "#Friend function \n", + "def idle(a,b):\n", + " if a._c1__status or b._c2__status :\n", + " return 0\n", + " else:\n", + " return 1\n", + " \n", + "#variable declarations\n", + "def IDLE(): #Constants\n", + " return 0\n", + "def INUSE():\n", + " return 1\n", + "x=c1()\n", + "y=c2()\n", + "\n", + "x.set_status(IDLE())\n", + "y.set_status(IDLE())\n", + "\n", + "if idle(x,y):\n", + " print \"Screen Can Be Used.\"\n", + " \n", + "x.set_status(INUSE())\n", + "\n", + "if idle(x,y):\n", + " print \"Screen Can Be Used.\"\n", + "else:\n", + " print \"Pop-up In Use.\"\n", + " \n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Screen Can Be Used.\nPop-up In Use.\n" + "text": [ + "Screen Can Be Used.\n", + "Pop-up In Use.\n" + ] } ], "prompt_number": 2 @@ -55,19 +129,64 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 12.3, Page Number: 277

" + "source": [ + "

Example 12.3, Page Number: 277

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A function can be member of one class and a friend of another'''\n\n #Constants\ndef IDLE(): \n return 0\ndef INUSE():\n return 1\n\nclass c1:\n __status=None\n def set_status(self,state):\n self.__status=state\n def idle(self,b): #now a member of c1\n if self.__status or b._c2__status :\n return 0\n else:\n return 1\n \nclass c2:\n __status=None #IDLE if off INUSE if on screen\n def set_status(self,state):\n self.status=state\n \n#Variable declarations \nx=c1()\ny=c2()\n\nx.set_status(IDLE())\ny.set_status(IDLE())\n\nif idle(x,y):\n print \"Screen Can Be Used.\"\n \nx.set_status(INUSE())\n\nif idle(x,y):\n print \"Screen Can Be Used.\"\nelse:\n print \"Pop-up In Use.\"\n ", + "input": [ + "\n", + "\n", + "def IDLE(): \n", + " return 0\n", + "def INUSE():\n", + " return 1\n", + "\n", + "class c1:\n", + " __status=None\n", + " def set_status(self,state):\n", + " self.__status=state\n", + " def idle(self,b): #now a member of c1\n", + " if self.__status or b._c2__status :\n", + " return 0\n", + " else:\n", + " return 1\n", + " \n", + "class c2:\n", + " __status=None #IDLE if off INUSE if on screen\n", + " def set_status(self,state):\n", + " self.status=state\n", + " \n", + "#Variable declarations \n", + "x=c1()\n", + "y=c2()\n", + "\n", + "x.set_status(IDLE())\n", + "y.set_status(IDLE())\n", + "\n", + "if idle(x,y):\n", + " print \"Screen Can Be Used.\"\n", + " \n", + "x.set_status(INUSE())\n", + "\n", + "if idle(x,y):\n", + " print \"Screen Can Be Used.\"\n", + "else:\n", + " print \"Pop-up In Use.\"\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Screen Can Be Used.\nPop-up In Use.\n" + "text": [ + "Screen Can Be Used.\n", + "Pop-up In Use.\n" + ] } ], "prompt_number": 4 @@ -75,29 +194,70 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 12.4, Page Number: 278

" + "source": [ + "

Example 12.4, Page Number: 278

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Use of overloaded constructors'''\n#Printing the time passed since the functon started instead of ringing the bell.\n\nimport time,string\n\nclass timer:\n __seconds=None\n \n def __init__(self,t1,t2=None):\n if t2==None:\n if isinstance(t1,int): #seconds specified as an integer\n self.__seconds=t1\n else: #seconds specified as a string\n self.__seconds=string.atoi(t1)\n else: #time in minutes and seconds\n self.__seconds=t1*60+t2\n \n def run(self):\n t1=time.clock()\n while (time.clock()-t1)Example 12.5, Page Number: 280

" + "source": [ + "

Example 12.5, Page Number: 280

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstarate dynamic initialization'''\n#Printing the time passed since the functon started instead of ringing the bell.\n\nimport time,string\n\nclass timer:\n __seconds=None\n \n def __init__(self,t1,t2=None):\n if t2==None:\n if isinstance(t1,int): #seconds specified as an integer\n self.__seconds=t1\n else: #seconds specified as a string\n self.__seconds=string.atoi(t1)\n else: #time in minutes and seconds\n self.__seconds=t1*60+t2\n \n def run(self):\n t1=time.clock()\n while (time.clock()-t1)Example 12.6, Page Number: 282

" + "source": [ + "

Example 12.6, Page Number: 282

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate object assignment'''\n\nclass myclass:\n __a=None #private members\n __b=None\n def setab(self,i,j): #publc functons\n self.__a=i\n self.__b=j\n def showab(self):\n print \"a is \",self.__a\n print \"b is \",self.__b\n\n#Variable declaration\nob1 = myclass()\nob2 = myclass()\n\n#Intalizing\nob1.setab(10,20)\nob2.setab(0,0)\n\nprint \"ob1 before assignment: \"\nob1.showab()\nprint \"ob2 before assignment: \"\nob2.showab()\n\nob2 = ob1 #assign ob1 to ob2\n\n#Result\nprint \"ob1 after assignment: \"\nob1.showab()\nprint \"ob2 after assignment: \"\nob2.showab()\n", + "input": [ + "\n", + "class myclass:\n", + " __a=None #private members\n", + " __b=None\n", + " def setab(self,i,j): #publc functons\n", + " self.__a=i\n", + " self.__b=j\n", + " def showab(self):\n", + " print \"a is \",self.__a\n", + " print \"b is \",self.__b\n", + "\n", + "#Variable declaration\n", + "ob1 = myclass()\n", + "ob2 = myclass()\n", + "\n", + "#Intalizing\n", + "ob1.setab(10,20)\n", + "ob2.setab(0,0)\n", + "\n", + "print \"ob1 before assignment: \"\n", + "ob1.showab()\n", + "print \"ob2 before assignment: \"\n", + "ob2.showab()\n", + "\n", + "ob2 = ob1 #assign ob1 to ob2\n", + "\n", + "#Result\n", + "print \"ob1 after assignment: \"\n", + "ob1.showab()\n", + "print \"ob2 after assignment: \"\n", + "ob2.showab()\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "ob1 before assignment: \na is 10\nb is 20\nob2 before assignment: \na is 0\nb is 0\nob1 after assignment: \na is 10\nb is 20\nob2 after assignment: \na is 10\nb is 20\n" + "text": [ + "ob1 before assignment: \n", + "a is 10\n", + "b is 20\n", + "ob2 before assignment: \n", + "a is 0\n", + "b is 0\n", + "ob1 after assignment: \n", + "a is 10\n", + "b is 20\n", + "ob2 after assignment: \n", + "a is 10\n", + "b is 20\n" + ] } ], "prompt_number": 1 @@ -155,19 +410,44 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 12.7, Page Number: 283

" + "source": [ + "

Example 12.7, Page Number: 283

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstration of passing objects to functions'''\n'''Implementing call by value method in python'''\n\nfrom copy import deepcopy\n \nclass OBJ:\n def set_i(self,x):\n self.__i=x\n def out_i(self):\n print self.__i,\n \ndef f(x):\n x=deepcopy(x)\n x.out_i() #outputs 10\n x.set_i(100) #this affects only local copy\n x.out_i() #outputs 100\n \n#Variable declaration\no=OBJ()\no.set_i(10)\nf(o) \no.out_i() #still outputs 10, value of i unchanged\n", + "input": [ + "\n", + "from copy import deepcopy\n", + " \n", + "class OBJ:\n", + " def set_i(self,x):\n", + " self.__i=x\n", + " def out_i(self):\n", + " print self.__i,\n", + " \n", + "def f(x):\n", + " x=deepcopy(x)\n", + " x.out_i() #outputs 10\n", + " x.set_i(100) #this affects only local copy\n", + " x.out_i() #outputs 100\n", + " \n", + "#Variable declaration\n", + "o=OBJ()\n", + "o.set_i(10)\n", + "f(o) \n", + "o.out_i() #still outputs 10, value of i unchanged\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 100 10\n" + "text": [ + "10 100 10\n" + ] } ], "prompt_number": 3 @@ -175,19 +455,44 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 12.8, Page Number: 284

" + "source": [ + "

Example 12.8, Page Number: 284

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Constructors, destructors, and passing objects'''\n\nclass myclass: \n def __init__(self,i):\n self.__val=i\n print \"Constructing\"\n def __del__(self):\n print \"Destructing\"\n def getval(self):\n return self.__val\n \ndef display(ob):\n print ob.getval()\n\n#Varable declaration\na=myclass(10)\n\ndisplay(a)\n", + "input": [ + "\n", + "\n", + "class myclass: \n", + " def __init__(self,i):\n", + " self.__val=i\n", + " print \"Constructing\"\n", + " def __del__(self):\n", + " print \"Destructing\"\n", + " def getval(self):\n", + " return self.__val\n", + " \n", + "def display(ob):\n", + " print ob.getval()\n", + "\n", + "#Varable declaration\n", + "a=myclass(10)\n", + "\n", + "display(a)\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Constructing\nDestructing\n10\n" + "text": [ + "Constructing\n", + "Destructing\n", + "10\n" + ] } ], "prompt_number": 2 @@ -195,19 +500,46 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 12.9, Page Number: 286

" + "source": [ + "

Example 12.9, Page Number: 286

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Passing objects with a pointer'''\n#The problem shown in C++, will not occur in python because it does not have pointers.\n\nfrom ctypes import *\n\nclass myclass:\n def __init__(self,i):\n print \"Allocating p\"\n self.p=pointer(c_int(i))\n def __del__(self):\n print \"Freeing p\"\n def getval(self):\n return self.p[0]\n \ndef display(ob):\n print ob.getval()\n\n#Variable declaration\na=myclass(10)\n\ndisplay(a)\n ", + "input": [ + "\n", + "\n", + "from ctypes import *\n", + "\n", + "class myclass:\n", + " def __init__(self,i):\n", + " print \"Allocating p\"\n", + " self.p=pointer(c_int(i))\n", + " def __del__(self):\n", + " print \"Freeing p\"\n", + " def getval(self):\n", + " return self.p[0]\n", + " \n", + "def display(ob):\n", + " print ob.getval()\n", + "\n", + "#Variable declaration\n", + "a=myclass(10)\n", + "\n", + "display(a)\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Allocating p\n10\n" + "text": [ + "Allocating p\n", + "10\n" + ] } ], "prompt_number": 4 @@ -215,19 +547,47 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 12.10, Page Number: 287

" + "source": [ + "

Example 12.10, Page Number: 287

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Passing objects by reference'''\n\nfrom ctypes import *\nclass myclass:\n def __init__(self,i):\n print \"Allocating p\"\n self.p=pointer(c_int(i))\n def __del__(self):\n print \"Freeing p\"\n def getval(self):\n return self.p[0]\n \ndef display(ob):\n print ob[0].getval()\n\n#Variable declaration\na=[]\na.append(myclass(10))\n\ndisplay(a)\n ", + "input": [ + "'''Passing objects by reference'''\n", + "\n", + "from ctypes import *\n", + "class myclass:\n", + " def __init__(self,i):\n", + " print \"Allocating p\"\n", + " self.p=pointer(c_int(i))\n", + " def __del__(self):\n", + " print \"Freeing p\"\n", + " def getval(self):\n", + " return self.p[0]\n", + " \n", + "def display(ob):\n", + " print ob[0].getval()\n", + "\n", + "#Variable declaration\n", + "a=[]\n", + "a.append(myclass(10))\n", + "\n", + "display(a)\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Freeing p\nAllocating p\n10\n" + "text": [ + "Freeing p\n", + "Allocating p\n", + "10\n" + ] } ], "prompt_number": 5 @@ -235,19 +595,48 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 12.11, Page Number: 288

" + "source": [ + "

Example 12.11, Page Number: 288

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Returning an object'''\n\nclass sample:\n __s=None\n def show(self):\n print self.__s\n def set(self,str):\n self.__s=str\n\n#Return an object of type sample\ndef input():\n str=sample()\n instr = \"Hello\" #User input\n str.set(instr)\n return str\n\n#Variable declaration\nob=sample()\n\n#assign returned object to ob\nob=input()\n\n#Result\nob.show()\n", + "input": [ + "\n", + "\n", + "class sample:\n", + " __s=None\n", + " def show(self):\n", + " print self.__s\n", + " def set(self,str):\n", + " self.__s=str\n", + "\n", + "#Return an object of type sample\n", + "def input():\n", + " str=sample()\n", + " instr = \"Hello\" #User input\n", + " str.set(instr)\n", + " return str\n", + "\n", + "#Variable declaration\n", + "ob=sample()\n", + "\n", + "#assign returned object to ob\n", + "ob=input()\n", + "\n", + "#Result\n", + "ob.show()\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Hello\n" + "text": [ + "Hello\n" + ] } ], "prompt_number": 6 @@ -255,19 +644,56 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 12.12, Page Number: 289

" + "source": [ + "

Example 12.12, Page Number: 289

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Returning an object'''\n#The error shown in C++ doesnt occur here.\nclass sample:\n __s=None\n def __init__(self):\n self.__s=0\n def __del__(self): \n print \"Freeing p\"\n def show(self):\n print self.__s\n def set(self,str):\n self.__s=str\n \n#This function takes one object parameter\ndef input():\n str=sample()\n instr=\"Hello\" #User input\n str.set(instr)\n return str\n\n#Variable declaration\nob=sample()\n\n#assign returned object to ob\nob=input()\n\n#Result\nob.show()\n\n\n", + "input": [ + "\n", + "#\n", + "class sample:\n", + " __s=None\n", + " def __init__(self):\n", + " self.__s=0\n", + " def __del__(self): \n", + " print \"Freeing p\"\n", + " def show(self):\n", + " print self.__s\n", + " def set(self,str):\n", + " self.__s=str\n", + " \n", + "#This function takes one object parameter\n", + "def input():\n", + " str=sample()\n", + " instr=\"Hello\" #User input\n", + " str.set(instr)\n", + " return str\n", + "\n", + "#Variable declaration\n", + "ob=sample()\n", + "\n", + "#assign returned object to ob\n", + "ob=input()\n", + "\n", + "#Result\n", + "ob.show()\n", + "\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Freeing p\nFreeing p\nHello\n" + "text": [ + "Freeing p\n", + "Freeing p\n", + "Hello\n" + ] } ], "prompt_number": 8 @@ -275,19 +701,52 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 12.13, Page Number: 292

" + "source": [ + "

Example 12.13, Page Number: 292

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing a copy constructor'''\n#Copy construcor doesnt work in this example, it works only when explicitly called\n\nclass myclass:\n __p=None\n def __init__(self,i):\n if isinstance(i,int):\n print \"Allocating p\"\n self.__p=i\n else:\n print \"Copy constructor called\"\n self.__p=i.getval()\n def __del__(self): \n print \"Freeing p\"\n def getval(self):\n return self.__p\n \n#This function takes one object parameter\ndef display(ob):\n print ob.getval()\n\n#Variable declaration\nob=myclass(10)\n\n#Result\ndisplay(ob)\n\n\n", + "input": [ + "\n", + "\n", + "class myclass:\n", + " __p=None\n", + " def __init__(self,i):\n", + " if isinstance(i,int):\n", + " print \"Allocating p\"\n", + " self.__p=i\n", + " else:\n", + " print \"Copy constructor called\"\n", + " self.__p=i.getval()\n", + " def __del__(self): \n", + " print \"Freeing p\"\n", + " def getval(self):\n", + " return self.__p\n", + " \n", + "#This function takes one object parameter\n", + "def display(ob):\n", + " print ob.getval()\n", + "\n", + "#Variable declaration\n", + "ob=myclass(10)\n", + "\n", + "#Result\n", + "display(ob)\n", + "\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Allocating p\n10\n" + "text": [ + "Allocating p\n", + "10\n" + ] } ], "prompt_number": 1 @@ -295,19 +754,50 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 12.14, Page Number: 294

" + "source": [ + "

Example 12.14, Page Number: 294

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing a copy constructor'''\n\n\nclass myclass:\n __p=None\n def __init__(self,i):\n if isinstance(i,int):\n print \"Allocating p\"\n self.__p=i\n else:\n print \"Copy constructor called\"\n self.__p=i.getval()\n def __del__(self): \n print \"Freeing p\"\n def getval(self):\n return self.__p\n \n\n#Variable declaration\na=myclass(10) #calls normal constructor\nb=myclass(a) #calls copy constructor\n\n\n\n\n", + "input": [ + "\n", + "\n", + "\n", + "class myclass:\n", + " __p=None\n", + " def __init__(self,i):\n", + " if isinstance(i,int):\n", + " print \"Allocating p\"\n", + " self.__p=i\n", + " else:\n", + " print \"Copy constructor called\"\n", + " self.__p=i.getval()\n", + " def __del__(self): \n", + " print \"Freeing p\"\n", + " def getval(self):\n", + " return self.__p\n", + " \n", + "\n", + "#Variable declaration\n", + "a=myclass(10) #calls normal constructor\n", + "b=myclass(a) #calls copy constructor\n", + "\n", + "\n", + "\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Allocating p\nCopy constructor called\n" + "text": [ + "Allocating p\n", + "Copy constructor called\n" + ] } ], "prompt_number": 4 @@ -315,19 +805,45 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 12.15, Page Number: 295

" + "source": [ + "

Example 12.15, Page Number: 295

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing a copy constructor'''\n\n\nclass myclass:\n def __init__(self,i=0):\n if isinstance(i,int):\n print \"Normal constructor\"\n else:\n print \"Copy constructor\"\n\n\n#Variable declaration\na=myclass() #calls normal constructor\n\nf=myclass()\na=myclass(f) #Invoke copyconstructor\n\n\n\n\n", + "input": [ + "\n", + "\n", + "class myclass:\n", + " def __init__(self,i=0):\n", + " if isinstance(i,int):\n", + " print \"Normal constructor\"\n", + " else:\n", + " print \"Copy constructor\"\n", + "\n", + "\n", + "#Variable declaration\n", + "a=myclass() #calls normal constructor\n", + "\n", + "f=myclass()\n", + "a=myclass(f) #Invoke copyconstructor\n", + "\n", + "\n", + "\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Normal constructor\nNormal constructor\nCopy constructor\n" + "text": [ + "Normal constructor\n", + "Normal constructor\n", + "Copy constructor\n" + ] } ], "prompt_number": 8 @@ -335,19 +851,41 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 12.16, Page Number: 297

" + "source": [ + "

Example 12.16, Page Number: 297

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of the this pointer'''\n#Here self works as this\n\nclass c1:\n def __init__(self):\n self.__i=None\n def load_i(self,val):\n self.__i=val\n def get_i(self):\n return self.__i\n \n#Variable declaration \no=c1()\n\no.load_i(100)\n\n#Result\nprint o.get_i()\n", + "input": [ + "\n", + "\n", + "class c1:\n", + " def __init__(self):\n", + " self.__i=None\n", + " def load_i(self,val):\n", + " self.__i=val\n", + " def get_i(self):\n", + " return self.__i\n", + " \n", + "#Variable declaration \n", + "o=c1()\n", + "\n", + "o.load_i(100)\n", + "\n", + "#Result\n", + "print o.get_i()\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "100\n" + "text": [ + "100\n" + ] } ], "prompt_number": 13 @@ -355,7 +893,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_13(1).ipynb b/C++_from_the_Ground/Chapter_13(1).ipynb index c38dca6a..6d12a5a7 100644 --- a/C++_from_the_Ground/Chapter_13(1).ipynb +++ b/C++_from_the_Ground/Chapter_13(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 13" + "name": "", + "signature": "sha256:be0df45a07fa8844875025463a4211b5faab9834d4e1dd155b475b36ae6ea27e" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,85 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 13: Operator Overloading

" + "source": [ + "

Chapter 13: Operator Overloading

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 13.1, Page Number: 300

" + "source": [ + "

Example 13.1, Page Number: 300

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Overloading operators using member functions'''\n\nclass three_d:\n def __init__(self,i=None,j=None,k=None):\n if i==None:\n self.x=self.y=self.z=0\n else:\n self.x=i\n self.y=j\n self.z=k\n #Overload +\n def __add__(self,op2):\n temp=three_d()\n temp.x=self.x + op2.x #These are integer additions\n temp.y=self.y + op2.y #and the + retains its original\n temp.z=self.z + op2.z #meaning relative to them.\n return temp\n #Overload assignment\n def __assign__(self,op2):\n self.x=op2.x #These are integer assignments\n self.y=op2.y #and the = retains its original \n self.z=op2.z #meaning relative to them\n return self\n #Show x,y,z coordinates\n def show(self):\n print self.x,\",\",self.y,\",\",self.z\n \n#Variable declaration\na=three_d(1,2,3)\nb=three_d(10,10,10)\nc=three_d()\n\na.show()\nb.show()\n\n#add a and b together\nc=a+b\nc.show()\n\n#add a,b and c together\nc=a+b+c\nc.show()\n\n#demonstrate multiple assignment\nc=b=a\nc.show()\nb.show()\n \n ", + "input": [ + "\n", + "\n", + "class three_d:\n", + " def __init__(self,i=None,j=None,k=None):\n", + " if i==None:\n", + " self.x=self.y=self.z=0\n", + " else:\n", + " self.x=i\n", + " self.y=j\n", + " self.z=k\n", + " #Overload +\n", + " def __add__(self,op2):\n", + " temp=three_d()\n", + " temp.x=self.x + op2.x #These are integer additions\n", + " temp.y=self.y + op2.y #and the + retains its original\n", + " temp.z=self.z + op2.z #meaning relative to them.\n", + " return temp\n", + " #Overload assignment\n", + " def __assign__(self,op2):\n", + " self.x=op2.x #These are integer assignments\n", + " self.y=op2.y #and the = retains its original \n", + " self.z=op2.z #meaning relative to them\n", + " return self\n", + " #Show x,y,z coordinates\n", + " def show(self):\n", + " print self.x,\",\",self.y,\",\",self.z\n", + " \n", + "#Variable declaration\n", + "a=three_d(1,2,3)\n", + "b=three_d(10,10,10)\n", + "c=three_d()\n", + "\n", + "a.show()\n", + "b.show()\n", + "\n", + "#add a and b together\n", + "c=a+b\n", + "c.show()\n", + "\n", + "#add a,b and c together\n", + "c=a+b+c\n", + "c.show()\n", + "\n", + "#demonstrate multiple assignment\n", + "c=b=a\n", + "c.show()\n", + "b.show()\n", + " \n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1 , 2 , 3\n10 , 10 , 10\n11 , 12 , 13\n22 , 24 , 26\n1 , 2 , 3\n1 , 2 , 3\n" + "text": [ + "1 , 2 , 3\n", + "10 , 10 , 10\n", + "11 , 12 , 13\n", + "22 , 24 , 26\n", + "1 , 2 , 3\n", + "1 , 2 , 3\n" + ] } ], "prompt_number": 1 @@ -35,19 +97,86 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 13.2, Page Number: 303

" + "source": [ + "

Example 13.2, Page Number: 303

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of ++ operator in python'''\n\nclass three_d:\n def __init__(self,i=None,j=None,k=None):\n if i==None:\n self.x=self.y=self.z=0\n else:\n self.x=i\n self.y=j\n self.z=k\n #Overload +\n def __add__(self,op2):\n temp=three_d()\n temp.x=self.x + op2.x #These are integer additions\n temp.y=self.y + op2.y #and the + retains its original\n temp.z=self.z + op2.z #meaning relative to them.\n return temp\n #Overload assignment\n def __assign__(self,op2):\n self.x=op2.x #These are integer assignments\n self.y=op2.y #and the = retains its original \n self.z=op2.z #meaning relative to them\n return self\n #Overload the increment operator\n def __iadd__(self,op2):\n self.x+=op2\n self.y+=op2\n self.z+=op2\n return self\n #Show x,y,z coordinates\n def show(self):\n print self.x,\",\",self.y,\",\",self.z\n \na=three_d(1,2,3)\nb=three_d(10,10,10)\nc=three_d()\n\na.show()\nb.show()\n\n#add a and b together\nc=a+b\nc.show()\n\n#add a,b and c together\nc=a+b+c\nc.show()\n\n#demonstrate multiple assignment\nc=b=a\nc.show()\nb.show()\n \n#Increment c\nc+=1\nc.show()\n", + "input": [ + "\n", + "\n", + "class three_d:\n", + " def __init__(self,i=None,j=None,k=None):\n", + " if i==None:\n", + " self.x=self.y=self.z=0\n", + " else:\n", + " self.x=i\n", + " self.y=j\n", + " self.z=k\n", + " #Overload +\n", + " def __add__(self,op2):\n", + " temp=three_d()\n", + " temp.x=self.x + op2.x #These are integer additions\n", + " temp.y=self.y + op2.y #and the + retains its original\n", + " temp.z=self.z + op2.z #meaning relative to them.\n", + " return temp\n", + " #Overload assignment\n", + " def __assign__(self,op2):\n", + " self.x=op2.x #These are integer assignments\n", + " self.y=op2.y #and the = retains its original \n", + " self.z=op2.z #meaning relative to them\n", + " return self\n", + " #Overload the increment operator\n", + " def __iadd__(self,op2):\n", + " self.x+=op2\n", + " self.y+=op2\n", + " self.z+=op2\n", + " return self\n", + " #Show x,y,z coordinates\n", + " def show(self):\n", + " print self.x,\",\",self.y,\",\",self.z\n", + " \n", + "a=three_d(1,2,3)\n", + "b=three_d(10,10,10)\n", + "c=three_d()\n", + "\n", + "a.show()\n", + "b.show()\n", + "\n", + "#add a and b together\n", + "c=a+b\n", + "c.show()\n", + "\n", + "#add a,b and c together\n", + "c=a+b+c\n", + "c.show()\n", + "\n", + "#demonstrate multiple assignment\n", + "c=b=a\n", + "c.show()\n", + "b.show()\n", + " \n", + "#Increment c\n", + "c+=1\n", + "c.show()\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1 , 2 , 3\n10 , 10 , 10\n11 , 12 , 13\n22 , 24 , 26\n1 , 2 , 3\n1 , 2 , 3\n2 , 3 , 4\n" + "text": [ + "1 , 2 , 3\n", + "10 , 10 , 10\n", + "11 , 12 , 13\n", + "22 , 24 , 26\n", + "1 , 2 , 3\n", + "1 , 2 , 3\n", + "2 , 3 , 4\n" + ] } ], "prompt_number": 2 @@ -55,19 +184,107 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 13.3, Page Number: 306

" + "source": [ + "

Example 13.3, Page Number: 306

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of prefix and postfix ++ operator in python'''\n\nclass three_d:\n def __init__(self,i=None,j=None,k=None):\n if i==None:\n self.x=self.y=self.z=0\n else:\n self.x=i\n self.y=j\n self.z=k\n #Overload +\n def __add__(self,op2):\n temp=three_d()\n temp.x=self.x + op2.x #These are integer additions\n temp.y=self.y + op2.y #and the + retains its original\n temp.z=self.z + op2.z #meaning relative to them.\n return temp\n #Overload assignment\n def __assign__(self,op2):\n self.x=op2.x #These are integer assignments\n self.y=op2.y #and the = retains its original \n self.z=op2.z #meaning relative to them\n return self\n #Overload the increment operator\n def __iadd__(self,op2):\n self.x+=op2\n self.y+=op2\n self.z+=op2\n return self\n #Show x,y,z coordinates\n def show(self):\n print self.x,\",\",self.y,\",\",self.z\n \na=three_d(1,2,3)\nb=three_d(10,10,10)\nc=three_d()\n\na.show()\nb.show()\n\n#add a and b together\nc=a+b\nc.show()\n\n#add a,b and c together\nc=a+b+c\nc.show()\n\n#demonstrate multiple assignment\nc=b=a\nc.show()\nb.show()\n \n#Increment c (prefix)\nc+=1\nc.show()\n\n#Increment c (postfix)\nc+=1\nc.show()\n\n#Implementing prefix\nc+=1\na=c\na.show()\nc.show()\n\n#Implementing postfix\na=c\na.show()\nc+=1\nc.show()", + "input": [ + "\n", + "\n", + "class three_d:\n", + " def __init__(self,i=None,j=None,k=None):\n", + " if i==None:\n", + " self.x=self.y=self.z=0\n", + " else:\n", + " self.x=i\n", + " self.y=j\n", + " self.z=k\n", + " #Overload +\n", + " def __add__(self,op2):\n", + " temp=three_d()\n", + " temp.x=self.x + op2.x #These are integer additions\n", + " temp.y=self.y + op2.y #and the + retains its original\n", + " temp.z=self.z + op2.z #meaning relative to them.\n", + " return temp\n", + " #Overload assignment\n", + " def __assign__(self,op2):\n", + " self.x=op2.x #These are integer assignments\n", + " self.y=op2.y #and the = retains its original \n", + " self.z=op2.z #meaning relative to them\n", + " return self\n", + " #Overload the increment operator\n", + " def __iadd__(self,op2):\n", + " self.x+=op2\n", + " self.y+=op2\n", + " self.z+=op2\n", + " return self\n", + " #Show x,y,z coordinates\n", + " def show(self):\n", + " print self.x,\",\",self.y,\",\",self.z\n", + " \n", + "a=three_d(1,2,3)\n", + "b=three_d(10,10,10)\n", + "c=three_d()\n", + "\n", + "a.show()\n", + "b.show()\n", + "\n", + "#add a and b together\n", + "c=a+b\n", + "c.show()\n", + "\n", + "#add a,b and c together\n", + "c=a+b+c\n", + "c.show()\n", + "\n", + "#demonstrate multiple assignment\n", + "c=b=a\n", + "c.show()\n", + "b.show()\n", + " \n", + "#Increment c (prefix)\n", + "c+=1\n", + "c.show()\n", + "\n", + "#Increment c (postfix)\n", + "c+=1\n", + "c.show()\n", + "\n", + "#Implementing prefix\n", + "c+=1\n", + "a=c\n", + "a.show()\n", + "c.show()\n", + "\n", + "#Implementing postfix\n", + "a=c\n", + "a.show()\n", + "c+=1\n", + "c.show()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1 , 2 , 3\n10 , 10 , 10\n11 , 12 , 13\n22 , 24 , 26\n1 , 2 , 3\n1 , 2 , 3\n2 , 3 , 4\n3 , 4 , 5\n4 , 5 , 6\n4 , 5 , 6\n4 , 5 , 6\n5 , 6 , 7\n" + "text": [ + "1 , 2 , 3\n", + "10 , 10 , 10\n", + "11 , 12 , 13\n", + "22 , 24 , 26\n", + "1 , 2 , 3\n", + "1 , 2 , 3\n", + "2 , 3 , 4\n", + "3 , 4 , 5\n", + "4 , 5 , 6\n", + "4 , 5 , 6\n", + "4 , 5 , 6\n", + "5 , 6 , 7\n" + ] } ], "prompt_number": 3 @@ -75,19 +292,79 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 13.4, Page Number: 310

" + "source": [ + "

Example 13.4, Page Number: 310

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Overload + using a friend'''\n\nclass three_d:\n def __init__(self,i=None,j=None,k=None):\n if i==None:\n self.x=self.y=self.z=0\n else:\n self.x=i\n self.y=j\n self.z=k\n #Overload +\n def __add__(self,op2):\n return add(self,op2)\n #Overload assignment\n def __assign__(self,op2):\n self.x=op2.x #These are integer assignments\n self.y=op2.y #and the = retains its original \n self.z=op2.z #meaning relative to them\n return self\n #Show x,y,z coordinates\n def show(self):\n print self.x,\",\",self.y,\",\",self.z\n \n#friending the funcion\ndef add(op1,op2):\n temp=three_d()\n temp.x=op1.x + op2.x #These are integer additions\n temp.y=op1.y + op2.y #and the + retains its original\n temp.z=op1.z + op2.z #meaning relative to them.\n return temp\n\na=three_d(1,2,3)\nb=three_d(10,10,10)\nc=three_d()\n\na.show()\nb.show()\n\n#add a and b together\nc=a+b\nc.show()\n\n#add a,b and c together\nc=a+b+c\nc.show()\n\n#demonstrate multiple assignment\nc=b=a\nc.show()\nb.show()\n", + "input": [ + "\n", + "\n", + "class three_d:\n", + " def __init__(self,i=None,j=None,k=None):\n", + " if i==None:\n", + " self.x=self.y=self.z=0\n", + " else:\n", + " self.x=i\n", + " self.y=j\n", + " self.z=k\n", + " #Overload +\n", + " def __add__(self,op2):\n", + " return add(self,op2)\n", + " #Overload assignment\n", + " def __assign__(self,op2):\n", + " self.x=op2.x #These are integer assignments\n", + " self.y=op2.y #and the = retains its original \n", + " self.z=op2.z #meaning relative to them\n", + " return self\n", + " #Show x,y,z coordinates\n", + " def show(self):\n", + " print self.x,\",\",self.y,\",\",self.z\n", + " \n", + "#friending the funcion\n", + "def add(op1,op2):\n", + " temp=three_d()\n", + " temp.x=op1.x + op2.x #These are integer additions\n", + " temp.y=op1.y + op2.y #and the + retains its original\n", + " temp.z=op1.z + op2.z #meaning relative to them.\n", + " return temp\n", + "\n", + "a=three_d(1,2,3)\n", + "b=three_d(10,10,10)\n", + "c=three_d()\n", + "\n", + "a.show()\n", + "b.show()\n", + "\n", + "#add a and b together\n", + "c=a+b\n", + "c.show()\n", + "\n", + "#add a,b and c together\n", + "c=a+b+c\n", + "c.show()\n", + "\n", + "#demonstrate multiple assignment\n", + "c=b=a\n", + "c.show()\n", + "b.show()\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1 , 2 , 3\n10 , 10 , 10\n11 , 12 , 13\n22 , 24 , 26\n1 , 2 , 3\n1 , 2 , 3\n" + "text": [ + "1 , 2 , 3\n", + "10 , 10 , 10\n", + "11 , 12 , 13\n", + "22 , 24 , 26\n", + "1 , 2 , 3\n", + "1 , 2 , 3\n" + ] } ], "prompt_number": 4 @@ -95,19 +372,62 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 13.5, Page Number: 311

" + "source": [ + "

Example 13.5, Page Number: 311

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Operator overloading when object is on the right side of the operator'''\n\nclass CL:\n def __init__(self):\n self.count=0\n def __assign__(self,obj):\n self.count=obj.count\n return self\n def __add__(self,i): \n return add(self,i)\n def __radd__(self,i):\n return radd(self,i)\n\n#This handles ob + int\ndef add(ob,i):\n temp=CL()\n temp.count=ob.count+i\n return temp\n \n#This handles int + ob \ndef radd(ob,i):\n temp=CL()\n temp.count=i+ob.count\n return temp\n\n#Variable declaration\no=CL()\no.count = 10\n\n#Result\nprint o.count, #outputs 10\no=10+o\nprint o.count, #outputs 20\no=o+12\nprint o.count #outputs 32\n\n\n ", + "input": [ + "\n", + "\n", + "class CL:\n", + " def __init__(self):\n", + " self.count=0\n", + " def __assign__(self,obj):\n", + " self.count=obj.count\n", + " return self\n", + " def __add__(self,i): \n", + " return add(self,i)\n", + " def __radd__(self,i):\n", + " return radd(self,i)\n", + "\n", + "#This handles ob + int\n", + "def add(ob,i):\n", + " temp=CL()\n", + " temp.count=ob.count+i\n", + " return temp\n", + " \n", + "#This handles int + ob \n", + "def radd(ob,i):\n", + " temp=CL()\n", + " temp.count=i+ob.count\n", + " return temp\n", + "\n", + "#Variable declaration\n", + "o=CL()\n", + "o.count = 10\n", + "\n", + "#Result\n", + "print o.count, #outputs 10\n", + "o=10+o\n", + "print o.count, #outputs 20\n", + "o=o+12\n", + "print o.count #outputs 32\n", + "\n", + "\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 20 32\n" + "text": [ + "10 20 32\n" + ] } ], "prompt_number": 1 @@ -115,19 +435,112 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 13.6, Page Number: 314

" + "source": [ + "

Example 13.6, Page Number: 314

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of prefix and postfix ++ as a friend function'''\n\nclass three_d:\n def __init__(self,i=None,j=None,k=None):\n if i==None:\n self.x=self.y=self.z=0\n else:\n self.x=i\n self.y=j\n self.z=k\n #Overload +\n def __add__(self,op2):\n return add(self,op2)\n #Overload assignment\n def __assign__(self,op2):\n self.x=op2.x #These are integer assignments\n self.y=op2.y #and the = retains its original \n self.z=op2.z #meaning relative to them\n return self\n #Overload the increment operator\n def __iadd__(self,op2):\n return iadd(self,op2)\n #Show x,y,z coordinates\n def show(self):\n print self.x,\",\",self.y,\",\",self.z\n\n#friending the funcion\ndef add(op1,op2):\n temp=three_d()\n temp.x=op1.x + op2.x #These are integer additions\n temp.y=op1.y + op2.y #and the + retains its original\n temp.z=op1.z + op2.z #meaning relative to them.\n return temp\ndef iadd(op1,op2):\n op1.x+=op2\n op1.y+=op2\n op1.z+=op2\n return op1\n \na=three_d(1,2,3)\nb=three_d(10,10,10)\nc=three_d()\n\na.show()\nb.show()\n\n#add a and b together\nc=a+b\nc.show()\n\n#add a,b and c together\nc=a+b+c\nc.show()\n\n#demonstrate multiple assignment\nc=b=a\nc.show()\nb.show()\n \n#Increment c (prefix)\nc+=1\nc.show()\n\n#Increment c (postfix)\nc+=1\nc.show()\n\n#Implementing prefix\nc+=1\na=c\na.show()\nc.show()\n\n#Implementing postfix\na=c\na.show()\nc+=1\nc.show()", + "input": [ + "\n", + "class three_d:\n", + " def __init__(self,i=None,j=None,k=None):\n", + " if i==None:\n", + " self.x=self.y=self.z=0\n", + " else:\n", + " self.x=i\n", + " self.y=j\n", + " self.z=k\n", + " #Overload +\n", + " def __add__(self,op2):\n", + " return add(self,op2)\n", + " #Overload assignment\n", + " def __assign__(self,op2):\n", + " self.x=op2.x #These are integer assignments\n", + " self.y=op2.y #and the = retains its original \n", + " self.z=op2.z #meaning relative to them\n", + " return self\n", + " #Overload the increment operator\n", + " def __iadd__(self,op2):\n", + " return iadd(self,op2)\n", + " #Show x,y,z coordinates\n", + " def show(self):\n", + " print self.x,\",\",self.y,\",\",self.z\n", + "\n", + "#friending the funcion\n", + "def add(op1,op2):\n", + " temp=three_d()\n", + " temp.x=op1.x + op2.x #These are integer additions\n", + " temp.y=op1.y + op2.y #and the + retains its original\n", + " temp.z=op1.z + op2.z #meaning relative to them.\n", + " return temp\n", + "def iadd(op1,op2):\n", + " op1.x+=op2\n", + " op1.y+=op2\n", + " op1.z+=op2\n", + " return op1\n", + " \n", + "a=three_d(1,2,3)\n", + "b=three_d(10,10,10)\n", + "c=three_d()\n", + "\n", + "a.show()\n", + "b.show()\n", + "\n", + "#add a and b together\n", + "c=a+b\n", + "c.show()\n", + "\n", + "#add a,b and c together\n", + "c=a+b+c\n", + "c.show()\n", + "\n", + "#demonstrate multiple assignment\n", + "c=b=a\n", + "c.show()\n", + "b.show()\n", + " \n", + "#Increment c (prefix)\n", + "c+=1\n", + "c.show()\n", + "\n", + "#Increment c (postfix)\n", + "c+=1\n", + "c.show()\n", + "\n", + "#Implementing prefix\n", + "c+=1\n", + "a=c\n", + "a.show()\n", + "c.show()\n", + "\n", + "#Implementing postfix\n", + "a=c\n", + "a.show()\n", + "c+=1\n", + "c.show()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1 , 2 , 3\n10 , 10 , 10\n11 , 12 , 13\n22 , 24 , 26\n1 , 2 , 3\n1 , 2 , 3\n2 , 3 , 4\n3 , 4 , 5\n4 , 5 , 6\n4 , 5 , 6\n4 , 5 , 6\n5 , 6 , 7\n" + "text": [ + "1 , 2 , 3\n", + "10 , 10 , 10\n", + "11 , 12 , 13\n", + "22 , 24 , 26\n", + "1 , 2 , 3\n", + "1 , 2 , 3\n", + "2 , 3 , 4\n", + "3 , 4 , 5\n", + "4 , 5 , 6\n", + "4 , 5 , 6\n", + "4 , 5 , 6\n", + "5 , 6 , 7\n" + ] } ], "prompt_number": 6 @@ -135,19 +548,61 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 13.7, Page Number: 318

" + "source": [ + "

Example 13.7, Page Number: 318

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n\nclass sample:\n def __init__(self,ob=0):\n if isinstance(ob,int):\n #Normal constructor\n self.__s=\"\"\n return\n else:\n #Copy constructor\n self.__s=obj._sample__s\n return\n def __del__(self):\n print \"Freeing s\"\n def show(self):\n print self.__s\n def set(self,str):\n self.__s=str\n def __assign__(self,ob): #Overload assignment\n self.s=ob._sample__s\n return self\n \ndef input():\n str=sample()\n instr=\"Hello\" #User input\n str.set(instr)\n return str\n\nob=sample()\n\n#assign returned object to ob\nob=input()\n\n#Result\nob.show()\n", + "input": [ + "\n", + "\n", + "class sample:\n", + " def __init__(self,ob=0):\n", + " if isinstance(ob,int):\n", + " #Normal constructor\n", + " self.__s=\"\"\n", + " return\n", + " else:\n", + " #Copy constructor\n", + " self.__s=obj._sample__s\n", + " return\n", + " def __del__(self):\n", + " print \"Freeing s\"\n", + " def show(self):\n", + " print self.__s\n", + " def set(self,str):\n", + " self.__s=str\n", + " def __assign__(self,ob): #Overload assignment\n", + " self.s=ob._sample__s\n", + " return self\n", + " \n", + "def input():\n", + " str=sample()\n", + " instr=\"Hello\" #User input\n", + " str.set(instr)\n", + " return str\n", + "\n", + "ob=sample()\n", + "\n", + "#assign returned object to ob\n", + "ob=input()\n", + "\n", + "#Result\n", + "ob.show()\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Freeing s\nFreeing s\nHello\n" + "text": [ + "Freeing s\n", + "Freeing s\n", + "Hello\n" + ] } ], "prompt_number": 4 @@ -155,19 +610,41 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 13.8, Page Number: 321

" + "source": [ + "

Example 13.8, Page Number: 321

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Overload []'''\n#There is on implementation of overloading [], hence we use normal functions\n\n\nclass atype:\n def __init__(self):\n self.__a=[]\n for i in range(SIZE):\n self.__a.append(i)\n def a(self,i):\n return self.__a[i]\n \n#Variable declaration\nSIZE=3\nob=atype()\n\n#Result\nprint ob.a(2),\n\n", + "input": [ + "\n", + "\n", + "class atype:\n", + " def __init__(self):\n", + " self.__a=[]\n", + " for i in range(SIZE):\n", + " self.__a.append(i)\n", + " def a(self,i):\n", + " return self.__a[i]\n", + " \n", + "#Variable declaration\n", + "SIZE=3\n", + "ob=atype()\n", + "\n", + "#Result\n", + "print ob.a(2),\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "2\n" + "text": [ + "2\n" + ] } ], "prompt_number": 6 @@ -175,19 +652,46 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 13.9, Page Number: 322

" + "source": [ + "

Example 13.9, Page Number: 322

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Overload []'''\n\nclass atype:\n def __init__(self):\n self.__a=[]\n for i in range(SIZE):\n self.__a.append(i)\n def a(self,i,j=None):\n if j==None:\n return self.__a[i]\n else:\n self.__a[i]=j\n \n#Variable declaration\nSIZE=3 \nob=atype()\n\nprint ob.a(2), #displays 2\n\nob.a(2,25)\n\nprint ob.a(2) #now displays 25", + "input": [ + "\n", + "\n", + "class atype:\n", + " def __init__(self):\n", + " self.__a=[]\n", + " for i in range(SIZE):\n", + " self.__a.append(i)\n", + " def a(self,i,j=None):\n", + " if j==None:\n", + " return self.__a[i]\n", + " else:\n", + " self.__a[i]=j\n", + " \n", + "#Variable declaration\n", + "SIZE=3 \n", + "ob=atype()\n", + "\n", + "print ob.a(2), #displays 2\n", + "\n", + "ob.a(2,25)\n", + "\n", + "print ob.a(2) #now displays 25" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "2 25\n" + "text": [ + "2 25\n" + ] } ], "prompt_number": 7 @@ -195,19 +699,52 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 13.10, Page Number: 323

" + "source": [ + "

Example 13.10, Page Number: 323

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A safe array example'''\n\nclass atype:\n def __init__(self):\n self.__a=[]\n for i in range(SIZE):\n self.__a.append(i)\n def a(self,i,j=None):\n if (i<0 or i>SIZE-1):\n print \"Index value of\",\n print i,\"is out of bounds.\"\n return\n if j==None:\n return self.__a[i]\n else:\n self.__a[i]=j\n \n#Variable declaration\nSIZE=3 \nob=atype()\n\nprint ob.a(2), #displays 2\n\nob.a(2,25)\n\nprint ob.a(2) #now displays 25\n\nob.a(44,3) #generates runtime error, 3 out of bounds", + "input": [ + "\n", + "class atype:\n", + " def __init__(self):\n", + " self.__a=[]\n", + " for i in range(SIZE):\n", + " self.__a.append(i)\n", + " def a(self,i,j=None):\n", + " if (i<0 or i>SIZE-1):\n", + " print \"Index value of\",\n", + " print i,\"is out of bounds.\"\n", + " return\n", + " if j==None:\n", + " return self.__a[i]\n", + " else:\n", + " self.__a[i]=j\n", + " \n", + "#Variable declaration\n", + "SIZE=3 \n", + "ob=atype()\n", + "\n", + "print ob.a(2), #displays 2\n", + "\n", + "ob.a(2,25)\n", + "\n", + "print ob.a(2) #now displays 25\n", + "\n", + "ob.a(44,3) #generates runtime error, 3 out of bounds" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "2 25\nIndex value of 44 is out of bounds.\n" + "text": [ + "2 25\n", + "Index value of 44 is out of bounds.\n" + ] } ], "prompt_number": 9 @@ -215,19 +752,56 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 13.11, Page Number: 324

" + "source": [ + "

Example 13.11, Page Number: 324

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Overload ()'''\n\nclass three_d:\n def __init__(self,i=None,j=None,k=None):\n if i==None:\n self.x=self.y=self.z=0 #3-D coordinates\n else:\n self.x=i\n self.y=j\n self.z=k\n #Show X,Y,Z coordinates\n def show(self):\n print self.x,\",\",self.y,\",\",self.z\n #Overload ()\n def a(self,a,b,c):\n temp = three_d()\n temp.x=self.x+a\n temp.y=self.y+b\n temp.z=self.z+c\n return temp\n \n#Variable declaration\nob1=three_d(1,2,3)\n\nob2=ob1.a(10,11,12) #invoke operator ()\n\n#Result\nprint \"ob1: \",\nob1.show()\nprint \"ob2: \",\nob2.show()", + "input": [ + "\n", + "\n", + "class three_d:\n", + " def __init__(self,i=None,j=None,k=None):\n", + " if i==None:\n", + " self.x=self.y=self.z=0 #3-D coordinates\n", + " else:\n", + " self.x=i\n", + " self.y=j\n", + " self.z=k\n", + " #Show X,Y,Z coordinates\n", + " def show(self):\n", + " print self.x,\",\",self.y,\",\",self.z\n", + " #Overload ()\n", + " def a(self,a,b,c):\n", + " temp = three_d()\n", + " temp.x=self.x+a\n", + " temp.y=self.y+b\n", + " temp.z=self.z+c\n", + " return temp\n", + " \n", + "#Variable declaration\n", + "ob1=three_d(1,2,3)\n", + "\n", + "ob2=ob1.a(10,11,12) #invoke operator ()\n", + "\n", + "#Result\n", + "print \"ob1: \",\n", + "ob1.show()\n", + "print \"ob2: \",\n", + "ob2.show()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "ob1: 1 , 2 , 3\nob2: 11 , 13 , 15\n" + "text": [ + "ob1: 1 , 2 , 3\n", + "ob2: 11 , 13 , 15\n" + ] } ], "prompt_number": 10 @@ -235,19 +809,61 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 13.12, Page Number: 326

" + "source": [ + "

Example 13.12, Page Number: 326

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Expanding the string type'''\n\nclass str_type:\n def __init__(self,str=\"\"):\n self.__string=str\n #String concatenation\n def __add__(self,str):\n temp=str_type()\n if isinstance(str,str_type):\n temp.__string=self.__string+str.__string\n else:\n temp.__string=self.__string+str\n return temp\n #String copy\n def __assign__(self,str):\n if isinstance(str,str_type):\n self.__string=str.__string\n else:\n self.__string=str\n return self\n def show_str(self):\n print self.__string\n \na=str_type(\"Hello \")\nb=str_type(\"There\")\nc=a+b\nc.show_str()\n\na=str_type(\"to program in because\")\na.show_str()\n\nb=c=str_type(\"C++ is fun\")\n\nc=c+\" \"+a+\" \"+b\nc.show_str()\n\n", + "input": [ + "\n", + "class str_type:\n", + " def __init__(self,str=\"\"):\n", + " self.__string=str\n", + " #String concatenation\n", + " def __add__(self,str):\n", + " temp=str_type()\n", + " if isinstance(str,str_type):\n", + " temp.__string=self.__string+str.__string\n", + " else:\n", + " temp.__string=self.__string+str\n", + " return temp\n", + " #String copy\n", + " def __assign__(self,str):\n", + " if isinstance(str,str_type):\n", + " self.__string=str.__string\n", + " else:\n", + " self.__string=str\n", + " return self\n", + " def show_str(self):\n", + " print self.__string\n", + " \n", + "a=str_type(\"Hello \")\n", + "b=str_type(\"There\")\n", + "c=a+b\n", + "c.show_str()\n", + "\n", + "a=str_type(\"to program in because\")\n", + "a.show_str()\n", + "\n", + "b=c=str_type(\"C++ is fun\")\n", + "\n", + "c=c+\" \"+a+\" \"+b\n", + "c.show_str()\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Hello There\nto program in because\nC++ is fun to program in because C++ is fun\n" + "text": [ + "Hello There\n", + "to program in because\n", + "C++ is fun to program in because C++ is fun\n" + ] } ], "prompt_number": 12 @@ -255,7 +871,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_14(1).ipynb b/C++_from_the_Ground/Chapter_14(1).ipynb index 0a3df4c8..2f8447ba 100644 --- a/C++_from_the_Ground/Chapter_14(1).ipynb +++ b/C++_from_the_Ground/Chapter_14(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 14" + "name": "", + "signature": "sha256:d3cc78f10810f320519cd1c8becefb4790578385b5c2b528dc88273651f18c12" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,112 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 14: Inheritance

" + "source": [ + "

Chapter 14: Inheritance

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.1, Page Number: 333

" + "source": [ + "

Example 14.1, Page Number: 333

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate inheritance'''\n\n#Define base class for vehicles\nclass road_vehicle:\n def __init__(self):\n self.__wheels=None\n self.__passengers=None\n def set_wheels(self,num):\n self.__wheels=num\n def get_wheels(self):\n return self.__wheels\n def set_pass(self,num):\n self.__passengers=num\n def get_pass(self):\n return self.__passengers\n\n#Define a truck\nclass truck(road_vehicle):\n def __init__(self):\n self.__cargo=None\n def set_cargo(self,size):\n self.__cargo=size\n def get_cargo(self):\n return self.__cargo\n def show(self):\n print \"wheels: \",self.get_wheels()\n print \"passengers: \",self.get_pass()\n print \"cargo capacity in cubic feet: \",self.__cargo\n \n#Define an enum type\n(car,van,wagon)=(1,2,3)\ntype=[\"car\",\"van\",\"wagon\"]\n \n#Define an automobile\nclass automobile(road_vehicle):\n def __init__(self):\n self.car_type=None\n def set_type(self,t):\n self.car_type=t\n def get_type(self):\n return self.car_type\n def show(self):\n print \"wheels: \",self.get_wheels()\n print \"passengers: \",self.get_pass()\n print \"type: \",\n if self.get_type()==1:\n print \"car\"\n elif self.get_type()==2:\n print \"van\"\n elif self.get_type()==3:\n print \"wagon\"\n \n#Variable declaration\nt1=truck()\nt2=truck()\nc=automobile()\n\nt1.set_wheels(18)\nt1.set_pass(2)\nt1.set_cargo(3200)\n\nt2.set_wheels(6)\nt2.set_pass(3)\nt2.set_cargo(1200)\n\nt1.show()\nt2.show()\n\nc.set_wheels(4)\nc.set_pass(6)\nc.set_type(van)\n\nc.show() \n ", + "input": [ + "\n", + "\n", + "class road_vehicle:\n", + " def __init__(self):\n", + " self.__wheels=None\n", + " self.__passengers=None\n", + " def set_wheels(self,num):\n", + " self.__wheels=num\n", + " def get_wheels(self):\n", + " return self.__wheels\n", + " def set_pass(self,num):\n", + " self.__passengers=num\n", + " def get_pass(self):\n", + " return self.__passengers\n", + "\n", + "#Define a truck\n", + "class truck(road_vehicle):\n", + " def __init__(self):\n", + " self.__cargo=None\n", + " def set_cargo(self,size):\n", + " self.__cargo=size\n", + " def get_cargo(self):\n", + " return self.__cargo\n", + " def show(self):\n", + " print \"wheels: \",self.get_wheels()\n", + " print \"passengers: \",self.get_pass()\n", + " print \"cargo capacity in cubic feet: \",self.__cargo\n", + " \n", + "#Define an enum type\n", + "(car,van,wagon)=(1,2,3)\n", + "type=[\"car\",\"van\",\"wagon\"]\n", + " \n", + "#Define an automobile\n", + "class automobile(road_vehicle):\n", + " def __init__(self):\n", + " self.car_type=None\n", + " def set_type(self,t):\n", + " self.car_type=t\n", + " def get_type(self):\n", + " return self.car_type\n", + " def show(self):\n", + " print \"wheels: \",self.get_wheels()\n", + " print \"passengers: \",self.get_pass()\n", + " print \"type: \",\n", + " if self.get_type()==1:\n", + " print \"car\"\n", + " elif self.get_type()==2:\n", + " print \"van\"\n", + " elif self.get_type()==3:\n", + " print \"wagon\"\n", + " \n", + "#Variable declaration\n", + "t1=truck()\n", + "t2=truck()\n", + "c=automobile()\n", + "\n", + "t1.set_wheels(18)\n", + "t1.set_pass(2)\n", + "t1.set_cargo(3200)\n", + "\n", + "t2.set_wheels(6)\n", + "t2.set_pass(3)\n", + "t2.set_cargo(1200)\n", + "\n", + "t1.show()\n", + "t2.show()\n", + "\n", + "c.set_wheels(4)\n", + "c.set_pass(6)\n", + "c.set_type(van)\n", + "\n", + "c.show() \n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "wheels: 18\npassengers: 2\ncargo capacity in cubic feet: 3200\nwheels: 6\npassengers: 3\ncargo capacity in cubic feet: 1200\nwheels: 4\npassengers: 6\ntype: van\n" + "text": [ + "wheels: 18\n", + "passengers: 2\n", + "cargo capacity in cubic feet: 3200\n", + "wheels: 6\n", + "passengers: 3\n", + "cargo capacity in cubic feet: 1200\n", + "wheels: 4\n", + "passengers: 6\n", + "type: van\n" + ] } ], "prompt_number": 1 @@ -35,19 +124,50 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.2, Page Number: 335

" + "source": [ + "

Example 14.2, Page Number: 335

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Base class access control'''\n\nclass base:\n def __init__(self):\n self.__i=self.__j=None\n def set(self,a,b):\n self.__i=a\n self.__j=b\n def show(self):\n print self.__i,self.__j\n \nclass derived(base):\n def __init__(self,x):\n self.__k=x\n def showk(self):\n print self.__k\n \n#Variable declaration\nob = derived(3)\n\nob.set(1,2) #access member of base\nob.show() #access member of base\n\nob.showk() #uses member of derived class\n ", + "input": [ + "\n", + "\n", + "class base:\n", + " def __init__(self):\n", + " self.__i=self.__j=None\n", + " def set(self,a,b):\n", + " self.__i=a\n", + " self.__j=b\n", + " def show(self):\n", + " print self.__i,self.__j\n", + " \n", + "class derived(base):\n", + " def __init__(self,x):\n", + " self.__k=x\n", + " def showk(self):\n", + " print self.__k\n", + " \n", + "#Variable declaration\n", + "ob = derived(3)\n", + "\n", + "ob.set(1,2) #access member of base\n", + "ob.show() #access member of base\n", + "\n", + "ob.showk() #uses member of derived class\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1 2\n3\n" + "text": [ + "1 2\n", + "3\n" + ] } ], "prompt_number": 1 @@ -55,19 +175,52 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.3, Page Number: 337

" + "source": [ + "

Example 14.3, Page Number: 337

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing protected members'''\n\nclass base:\n def __init__(self):\n self.__i=self.__j=None #These act as protected members\n def set(self,a,b):\n self.__i=a\n self.__j=b\n def show(self):\n print self.__i,self.__j\n \nclass derived(base):\n def __init__(self):\n self.__k=None\n def setk(self):\n self.__k=self._base__i*self._base__j #accessing private variables in derived class\n def showk(self):\n print self.__k\n \n#Variable declaration\nob = derived()\n\nob.set(2,3) #OK, known to be derived\nob.show() #OK, known to be derived\n\nob.setk()\nob.showk() #uses member of derived class\n ", + "input": [ + "\n", + "class base:\n", + " def __init__(self):\n", + " self.__i=self.__j=None #These act as protected members\n", + " def set(self,a,b):\n", + " self.__i=a\n", + " self.__j=b\n", + " def show(self):\n", + " print self.__i,self.__j\n", + " \n", + "class derived(base):\n", + " def __init__(self):\n", + " self.__k=None\n", + " def setk(self):\n", + " self.__k=self._base__i*self._base__j #accessing private variables in derived class\n", + " def showk(self):\n", + " print self.__k\n", + " \n", + "#Variable declaration\n", + "ob = derived()\n", + "\n", + "ob.set(2,3) #OK, known to be derived\n", + "ob.show() #OK, known to be derived\n", + "\n", + "ob.setk()\n", + "ob.showk() #uses member of derived class\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "2 3\n6\n" + "text": [ + "2 3\n", + "6\n" + ] } ], "prompt_number": 10 @@ -75,19 +228,73 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.4, Page Number: 338

" + "source": [ + "

Example 14.4, Page Number: 338

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Hierarchical Inheritance in python'''\n\nclass base:\n def __init__(self):\n self.__i=None\n self.__j=None\n def set(self,a,b):\n self.__i=a\n self.__j=b\n def show(self):\n print self.__i,self.__j\n \nclass derived1(base):\n def __init__(self):\n self.__k=None\n def setk(self):\n self.__k=self._base__i*self._base__j\n def showk(self):\n print self.__k\n\nclass derived2(derived1):\n def __init__(self):\n self.__m=None\n def setm(self):\n self.__m=self._base__i-self._base__j\n def showm(self):\n print self.__m\n \n \n#Variable declaration\nob1 = derived1()\nob2 = derived2()\n\nob1.set(2,3) #access member of base\nob1.show() #access member of base\nob1.setk() #uses member of derived1 class\nob1.showk() #uses member of derived1 class\n\nob2.set(3,4) #access member of base\nob2.show() #access member of base\nob2.setk() #access member of derived1 class\nob2.setm() #access member of derived2 class\nob2.showk() #uses member of derived1 class\nob2.showm() #uses member of derived1 class\n ", + "input": [ + "\n", + "\n", + "class base:\n", + " def __init__(self):\n", + " self.__i=None\n", + " self.__j=None\n", + " def set(self,a,b):\n", + " self.__i=a\n", + " self.__j=b\n", + " def show(self):\n", + " print self.__i,self.__j\n", + " \n", + "class derived1(base):\n", + " def __init__(self):\n", + " self.__k=None\n", + " def setk(self):\n", + " self.__k=self._base__i*self._base__j\n", + " def showk(self):\n", + " print self.__k\n", + "\n", + "class derived2(derived1):\n", + " def __init__(self):\n", + " self.__m=None\n", + " def setm(self):\n", + " self.__m=self._base__i-self._base__j\n", + " def showm(self):\n", + " print self.__m\n", + " \n", + " \n", + "#Variable declaration\n", + "ob1 = derived1()\n", + "ob2 = derived2()\n", + "\n", + "ob1.set(2,3) #access member of base\n", + "ob1.show() #access member of base\n", + "ob1.setk() #uses member of derived1 class\n", + "ob1.showk() #uses member of derived1 class\n", + "\n", + "ob2.set(3,4) #access member of base\n", + "ob2.show() #access member of base\n", + "ob2.setk() #access member of derived1 class\n", + "ob2.setm() #access member of derived2 class\n", + "ob2.showk() #uses member of derived1 class\n", + "ob2.showm() #uses member of derived1 class\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "2 3\n6\n3 4\n12\n-1\n" + "text": [ + "2 3\n", + "6\n", + "3 4\n", + "12\n", + "-1\n" + ] } ], "prompt_number": 11 @@ -95,19 +302,53 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.5, Page Number: 341

" + "source": [ + "

Example 14.5, Page Number: 341

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate inheriting a protected base class'''\n\nclass base:\n def __init__(self):\n self.__i=None\n self._j=None\n self.k=None\n def seti(self,a):\n self.__i=a\n def geti(self):\n return i\n \nclass derived(base):\n def setj(self,a):\n self._j=a\n def setk(self,a):\n self.k=a\n def getj(self):\n return self._j\n def getk(self):\n return self.k\n \n#Variable declaration \nob=derived()\n\nob.setk(10)\nprint ob.getk(),\nob.setj(12)\nprint ob.getj()", + "input": [ + "\n", + "\n", + "class base:\n", + " def __init__(self):\n", + " self.__i=None\n", + " self._j=None\n", + " self.k=None\n", + " def seti(self,a):\n", + " self.__i=a\n", + " def geti(self):\n", + " return i\n", + " \n", + "class derived(base):\n", + " def setj(self,a):\n", + " self._j=a\n", + " def setk(self,a):\n", + " self.k=a\n", + " def getj(self):\n", + " return self._j\n", + " def getk(self):\n", + " return self.k\n", + " \n", + "#Variable declaration \n", + "ob=derived()\n", + "\n", + "ob.setk(10)\n", + "print ob.getk(),\n", + "ob.setj(12)\n", + "print ob.getj()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 12\n" + "text": [ + "10 12\n" + ] } ], "prompt_number": 1 @@ -115,19 +356,50 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.6, Page Number: 342

" + "source": [ + "

Example 14.6, Page Number: 342

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An example of multiple base classes'''\n\nclass base1:\n def __init__(self):\n self.x=None\n def showx(self):\n print self.x\n \nclass base2:\n def __init__(self):\n self.y=None\n def showy(self):\n print self.y\n \nclass derived(base1,base2):\n def set(self,i,j):\n self.x=i\n self.y=j\n \n#Variable declaration\nob = derived()\n\nob.set(10,20) #provided by derived\nob.showx() #from base1\nob.showy() #from base2\n", + "input": [ + "\n", + "\n", + "class base1:\n", + " def __init__(self):\n", + " self.x=None\n", + " def showx(self):\n", + " print self.x\n", + " \n", + "class base2:\n", + " def __init__(self):\n", + " self.y=None\n", + " def showy(self):\n", + " print self.y\n", + " \n", + "class derived(base1,base2):\n", + " def set(self,i,j):\n", + " self.x=i\n", + " self.y=j\n", + " \n", + "#Variable declaration\n", + "ob = derived()\n", + "\n", + "ob.set(10,20) #provided by derived\n", + "ob.showx() #from base1\n", + "ob.showy() #from base2\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10\n20\n" + "text": [ + "10\n", + "20\n" + ] } ], "prompt_number": 17 @@ -135,19 +407,48 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.7, Page Number: 343

" + "source": [ + "

Example 14.7, Page Number: 343

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Constructors, Destructors and Inheritance'''\n\nclass base:\n def __init__(self):\n print \"Constructing base\"\n def __del__(self):\n print \"Destructing base\"\n\nclass derived(base):\n def __init__(self):\n base.__init__(self)\n print \"Constructing derived\"\n def __del__(self):\n print \"Destructing derived\"\n for b in self.__class__.__bases__:\n b.__del__(self)\n\n#Variable declaration\nob=derived()\n\n#Does nothing but construct and destruct ob", + "input": [ + "\n", + "\n", + "class base:\n", + " def __init__(self):\n", + " print \"Constructing base\"\n", + " def __del__(self):\n", + " print \"Destructing base\"\n", + "\n", + "class derived(base):\n", + " def __init__(self):\n", + " base.__init__(self)\n", + " print \"Constructing derived\"\n", + " def __del__(self):\n", + " print \"Destructing derived\"\n", + " for b in self.__class__.__bases__:\n", + " b.__del__(self)\n", + "\n", + "#Variable declaration\n", + "ob=derived()\n", + "\n", + "#Does nothing but construct and destruct ob" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Constructing base\nConstructing derived\nDestructing derived\nDestructing base\n" + "text": [ + "Constructing base\n", + "Constructing derived\n", + "Destructing derived\n", + "Destructing base\n" + ] } ], "prompt_number": 19 @@ -155,12 +456,42 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.8, Page Number: 344

" + "source": [ + "

Example 14.8, Page Number: 344

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "#Inheritance 344 eg:14.8\n'''Constructors, Destructors and Inheritance'''\n\nclass base:\n def __init__(self):\n print \"Constructing base\"\n def __del__(self):\n print \"Destructing base\"\n\nclass derived1(base):\n def __init__(self):\n base.__init__(self)\n print \"Constructing derived1\"\n def __del__(self):\n print \"Destructing derived1\"\n super(derived1,self).__del__(self)\n\nclass derived2(derived1):\n def __init__(self):\n derived1.__init__(self)\n print \"Constructing derived2\"\n def __del__(self):\n print \"Destructing derived2\"\n super(self.__class__,self).__del__(self)\n \n#Variable declaration\nob=derived2()\n\n#Does nothing but construct and destruct ob", + "input": [ + "\n", + "class base:\n", + " def __init__(self):\n", + " print \"Constructing base\"\n", + " def __del__(self):\n", + " print \"Destructing base\"\n", + "\n", + "class derived1(base):\n", + " def __init__(self):\n", + " base.__init__(self)\n", + " print \"Constructing derived1\"\n", + " def __del__(self):\n", + " print \"Destructing derived1\"\n", + " super(derived1,self).__del__(self)\n", + "\n", + "class derived2(derived1):\n", + " def __init__(self):\n", + " derived1.__init__(self)\n", + " print \"Constructing derived2\"\n", + " def __del__(self):\n", + " print \"Destructing derived2\"\n", + " super(self.__class__,self).__del__(self)\n", + " \n", + "#Variable declaration\n", + "ob=derived2()\n", + "\n", + "#Does nothing but construct and destruct ob" + ], "language": "python", "metadata": {}, "outputs": [] @@ -168,19 +499,55 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.9, Page Number: 345

" + "source": [ + "

Example 14.9, Page Number: 345

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Constructors and Destructors in Multiple Inheritance'''\n\nclass base1:\n def __init__(self):\n print \"Constructing base1\"\n def __del__(self):\n print \"Destructing base1\"\n \nclass base2:\n def __init__(self):\n print \"Constructing base2\"\n def __del__(self):\n print \"Destructing base2\"\n \nclass derived(base1,base2):\n def __init__(self):\n for b in self.__class__.__bases__:\n b.__init__(self)\n print \"Constructing derived\"\n def __del__(self):\n print \"Destructing derived\"\n for b in self.__class__.__bases__:\n b.__del__(self)\n \n#Variable declaration\nob = derived()\n\n", + "input": [ + "\n", + "class base1:\n", + " def __init__(self):\n", + " print \"Constructing base1\"\n", + " def __del__(self):\n", + " print \"Destructing base1\"\n", + " \n", + "class base2:\n", + " def __init__(self):\n", + " print \"Constructing base2\"\n", + " def __del__(self):\n", + " print \"Destructing base2\"\n", + " \n", + "class derived(base1,base2):\n", + " def __init__(self):\n", + " for b in self.__class__.__bases__:\n", + " b.__init__(self)\n", + " print \"Constructing derived\"\n", + " def __del__(self):\n", + " print \"Destructing derived\"\n", + " for b in self.__class__.__bases__:\n", + " b.__del__(self)\n", + " \n", + "#Variable declaration\n", + "ob = derived()\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Constructing base1\nConstructing base2\nConstructing derived\nDestructing derived\nDestructing base1\nDestructing base2\n" + "text": [ + "Constructing base1\n", + "Constructing base2\n", + "Constructing derived\n", + "Destructing derived\n", + "Destructing base1\n", + "Destructing base2\n" + ] } ], "prompt_number": 21 @@ -188,19 +555,53 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.10, Page Number: 347

" + "source": [ + "

Example 14.10, Page Number: 347

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Passing parameters to parent constructors in inheritance'''\n\nclass base:\n def __init__(self,x):\n self._i=x\n print \"Constructing base\"\n def __del__(self):\n print \"Destructing base\"\n\nclass derived(base):\n def __init__(self,x,y):\n base.__init__(self,y)\n self.__j=x\n print \"Constructing derived\"\n def __del__(self):\n print \"Destructing derived\"\n for b in self.__class__.__bases__:\n b.__del__(self)\n def show(self):\n print self._i,self.__j\n\n#Variable declaration\nob=derived(3,4)\n\n#Result\nob.show() #shows 4 3", + "input": [ + "\n", + "class base:\n", + " def __init__(self,x):\n", + " self._i=x\n", + " print \"Constructing base\"\n", + " def __del__(self):\n", + " print \"Destructing base\"\n", + "\n", + "class derived(base):\n", + " def __init__(self,x,y):\n", + " base.__init__(self,y)\n", + " self.__j=x\n", + " print \"Constructing derived\"\n", + " def __del__(self):\n", + " print \"Destructing derived\"\n", + " for b in self.__class__.__bases__:\n", + " b.__del__(self)\n", + " def show(self):\n", + " print self._i,self.__j\n", + "\n", + "#Variable declaration\n", + "ob=derived(3,4)\n", + "\n", + "#Result\n", + "ob.show() #shows 4 3" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Constructing base\nConstructing derived\nDestructing derived\nDestructing base\n4 3\n" + "text": [ + "Constructing base\n", + "Constructing derived\n", + "Destructing derived\n", + "Destructing base\n", + "4 3\n" + ] } ], "prompt_number": 23 @@ -208,19 +609,69 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.11, Page Number: 348

" + "source": [ + "

Example 14.11, Page Number: 348

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Example that uses multiple base classes'''\n\nclass base1:\n def __init__(self,x):\n self._i=x\n print \"Constructing base1\"\n def __del__(self):\n print \"Destructing base1\"\n \nclass base2:\n def __init__(self,x):\n self._k=x\n print \"Constructing base2\"\n def __del__(self):\n print \"Destructing base2\"\n \nclass derived(base1,base2):\n def __init__(self,x,y,z):\n self.__j=x\n i=0\n for b in self.__class__.__bases__:\n if i==0:\n b.__init__(self,y)\n else :\n b.__init__(self,z)\n i+=1\n print \"Constructing derived\"\n def __del__(self):\n print \"Destructing derived\"\n for b in self.__class__.__bases__:\n b.__del__(self)\n def show(self):\n print self._i,self.__j,self._k\n \n#Variable declaration\nob = derived(3,4,5)\n\n#Result\nob.show()\n\n", + "input": [ + "\n", + "class base1:\n", + " def __init__(self,x):\n", + " self._i=x\n", + " print \"Constructing base1\"\n", + " def __del__(self):\n", + " print \"Destructing base1\"\n", + " \n", + "class base2:\n", + " def __init__(self,x):\n", + " self._k=x\n", + " print \"Constructing base2\"\n", + " def __del__(self):\n", + " print \"Destructing base2\"\n", + " \n", + "class derived(base1,base2):\n", + " def __init__(self,x,y,z):\n", + " self.__j=x\n", + " i=0\n", + " for b in self.__class__.__bases__:\n", + " if i==0:\n", + " b.__init__(self,y)\n", + " else :\n", + " b.__init__(self,z)\n", + " i+=1\n", + " print \"Constructing derived\"\n", + " def __del__(self):\n", + " print \"Destructing derived\"\n", + " for b in self.__class__.__bases__:\n", + " b.__del__(self)\n", + " def show(self):\n", + " print self._i,self.__j,self._k\n", + " \n", + "#Variable declaration\n", + "ob = derived(3,4,5)\n", + "\n", + "#Result\n", + "ob.show()\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Constructing base1\nConstructing base2\nConstructing derived\nDestructing derived\nDestructing base1\nDestructing base2\n4 3 5\n" + "text": [ + "Constructing base1\n", + "Constructing base2\n", + "Constructing derived\n", + "Destructing derived\n", + "Destructing base1\n", + "Destructing base2\n", + "4 3 5\n" + ] } ], "prompt_number": 25 @@ -228,19 +679,68 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.12, Page Number: 348

" + "source": [ + "

Example 14.12, Page Number: 348

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Another example that uses multiple base classes'''\n\nclass base1:\n def __init__(self,x):\n self._i=x\n print \"Constructing base1\"\n def __del__(self):\n print \"Destructing base1\"\n \nclass base2:\n def __init__(self,x):\n self._k=x\n print \"Constructing base2\"\n def __del__(self):\n print \"Destructing base2\"\n \nclass derived(base1,base2):\n def __init__(self,x,y):\n i=0\n for b in self.__class__.__bases__:\n if i==0:\n b.__init__(self,x)\n else :\n b.__init__(self,y)\n i+=1\n print \"Constructing derived\"\n def __del__(self):\n print \"Destructing derived\"\n for b in self.__class__.__bases__:\n b.__del__(self)\n def show(self):\n print self._i,self._k\n \n#Variable declaration\nob = derived(3,4)\n\n#Result\nob.show()\n\n", + "input": [ + "\n", + "class base1:\n", + " def __init__(self,x):\n", + " self._i=x\n", + " print \"Constructing base1\"\n", + " def __del__(self):\n", + " print \"Destructing base1\"\n", + " \n", + "class base2:\n", + " def __init__(self,x):\n", + " self._k=x\n", + " print \"Constructing base2\"\n", + " def __del__(self):\n", + " print \"Destructing base2\"\n", + " \n", + "class derived(base1,base2):\n", + " def __init__(self,x,y):\n", + " i=0\n", + " for b in self.__class__.__bases__:\n", + " if i==0:\n", + " b.__init__(self,x)\n", + " else :\n", + " b.__init__(self,y)\n", + " i+=1\n", + " print \"Constructing derived\"\n", + " def __del__(self):\n", + " print \"Destructing derived\"\n", + " for b in self.__class__.__bases__:\n", + " b.__del__(self)\n", + " def show(self):\n", + " print self._i,self._k\n", + " \n", + "#Variable declaration\n", + "ob = derived(3,4)\n", + "\n", + "#Result\n", + "ob.show()\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Constructing base1\nConstructing base2\nConstructing derived\nDestructing derived\nDestructing base1\nDestructing base2\n3 4\n" + "text": [ + "Constructing base1\n", + "Constructing base2\n", + "Constructing derived\n", + "Destructing derived\n", + "Destructing base1\n", + "Destructing base2\n", + "3 4\n" + ] } ], "prompt_number": 26 @@ -248,19 +748,51 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.13, Page Number: 351

" + "source": [ + "

Example 14.13, Page Number: 351

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Acessing member variables'''\n\nclass base:\n def __init__(self):\n self.__i=None\n self.j=self.k=None\n def seti(self,x):\n self.__i=x\n def geti(self):\n return self.__i\n\nclass derived(base):\n def __init__(self):\n self.a=None\n\n\n#Variable declaration\nob=derived()\n\nob._base__i=10 #Accessing private members of base class\nob.j=20 #legal because j and k are public variable in base\nob.k=30\n\nob.a=40 #legal because a is public in derived class\nob.seti(10)\n\n#Result\nprint ob.geti(),ob.j,ob.a", + "input": [ + "\n", + "class base:\n", + " def __init__(self):\n", + " self.__i=None\n", + " self.j=self.k=None\n", + " def seti(self,x):\n", + " self.__i=x\n", + " def geti(self):\n", + " return self.__i\n", + "\n", + "class derived(base):\n", + " def __init__(self):\n", + " self.a=None\n", + "\n", + "\n", + "#Variable declaration\n", + "ob=derived()\n", + "\n", + "ob._base__i=10 #Accessing private members of base class\n", + "ob.j=20 #legal because j and k are public variable in base\n", + "ob.k=30\n", + "\n", + "ob.a=40 #legal because a is public in derived class\n", + "ob.seti(10)\n", + "\n", + "#Result\n", + "print ob.geti(),ob.j,ob.a" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 20 40\n" + "text": [ + "10 20 40\n" + ] } ], "prompt_number": 28 @@ -268,19 +800,55 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.14, Page Number: 354

" + "source": [ + "

Example 14.14, Page Number: 354

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Virtual base class'''\n#All classes in pyhton are effectively virtual, hence scope resolution is not needed\n\nclass base:\n def __init__(self):\n self.i=None\n\n#derived1 inherits base\nclass derived1(base):\n def __init__(self):\n self.__j=None\n \n#derived2 inherits base\nclass derived2(base):\n def __init__(self):\n self.__k=None\n\n#derived3 inherits from both derived1 and derived2\nclass derived3(derived1,derived2):\n def __init__(self):\n self.__sum=None\n \n#Variable declaration\nob=derived3()\n\nob.i=10\nob.j=20\nob.k=30\n\nob.sum=ob.i+ob.j+ob.k\n\n#Result\nprint ob.i,ob.j,ob.k,ob.sum", + "input": [ + "\n", + "class base:\n", + " def __init__(self):\n", + " self.i=None\n", + "\n", + "#derived1 inherits base\n", + "class derived1(base):\n", + " def __init__(self):\n", + " self.__j=None\n", + " \n", + "#derived2 inherits base\n", + "class derived2(base):\n", + " def __init__(self):\n", + " self.__k=None\n", + "\n", + "#derived3 inherits from both derived1 and derived2\n", + "class derived3(derived1,derived2):\n", + " def __init__(self):\n", + " self.__sum=None\n", + " \n", + "#Variable declaration\n", + "ob=derived3()\n", + "\n", + "ob.i=10\n", + "ob.j=20\n", + "ob.k=30\n", + "\n", + "ob.sum=ob.i+ob.j+ob.k\n", + "\n", + "#Result\n", + "print ob.i,ob.j,ob.k,ob.sum" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 20 30 60\n" + "text": [ + "10 20 30 60\n" + ] } ], "prompt_number": 29 @@ -288,19 +856,55 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 14.15, Page Number: 355

" + "source": [ + "

Example 14.15, Page Number: 355

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Virtual base class'''\n#All classes in pyhton are effectively virtual, hence virtual keyword is not needed\n\nclass base:\n def __init__(self):\n self.i=None\n\n#derived1 inherits base\nclass derived1(base):\n def __init__(self):\n self.__j=None\n \n#derived2 inherits base\nclass derived2(base):\n def __init__(self):\n self.__k=None\n\n#derived3 inherits from both derived1 and derived2\nclass derived3(derived1,derived2):\n def __init__(self):\n self.__sum=None\n \n#Variable declaration\nob=derived3()\n\nob.i=10\nob.j=20\nob.k=30\n\nob.sum=ob.i+ob.j+ob.k\n\n#Result\nprint ob.i,ob.j,ob.k,ob.sum", + "input": [ + "\n", + "class base:\n", + " def __init__(self):\n", + " self.i=None\n", + "\n", + "#derived1 inherits base\n", + "class derived1(base):\n", + " def __init__(self):\n", + " self.__j=None\n", + " \n", + "#derived2 inherits base\n", + "class derived2(base):\n", + " def __init__(self):\n", + " self.__k=None\n", + "\n", + "#derived3 inherits from both derived1 and derived2\n", + "class derived3(derived1,derived2):\n", + " def __init__(self):\n", + " self.__sum=None\n", + " \n", + "#Variable declaration\n", + "ob=derived3()\n", + "\n", + "ob.i=10\n", + "ob.j=20\n", + "ob.k=30\n", + "\n", + "ob.sum=ob.i+ob.j+ob.k\n", + "\n", + "#Result\n", + "print ob.i,ob.j,ob.k,ob.sum" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 20 30 60\n" + "text": [ + "10 20 30 60\n" + ] } ], "prompt_number": 30 @@ -308,7 +912,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_15(1).ipynb b/C++_from_the_Ground/Chapter_15(1).ipynb index 53e0df9a..211b1c7d 100644 --- a/C++_from_the_Ground/Chapter_15(1).ipynb +++ b/C++_from_the_Ground/Chapter_15(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 15" + "name": "", + "signature": "sha256:1198072630a182533bf651767f275df9ee5758e0d781322254bb408a8b4cffaa" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,85 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 15: Virtual Functions and Polymorphism

" + "source": [ + "

Chapter 15: Virtual Functions and Polymorphism

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 15.1, Page Number: 358

" + "source": [ + "

Example 15.1, Page Number: 358

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Using base pointers on derived class objects'''\n\n\nclass B_class:\n def __init__(self):\n self.author=None\n def put_author(self,s):\n self.author=s\n def show_author(self):\n print self.author\n \nclass D_class(B_class):\n def __init__(self):\n self.title=None\n def put_title(self,num):\n self.title=num\n def show_title(self):\n print \"Title:\",self.title\n \n#Variable declaration\np=[B_class()] #acts as a pointer to B_class type\nB_ob=B_class()\n\ndp=[D_class()] #acts as a pointer to D_class type\nD_ob=D_class()\n\np[0]=B_ob #assigning p to object of base\n\n\n#Access B_class via pointer\np[0].put_author(\"Tom Clancy\")\n\n#Access D_class via base pointer\np[0]=D_ob\np[0].put_author(\"William Shakespeare\")\n\n#Show that each author went into proper object\nB_ob.show_author()\nD_ob.show_author()\nprint \"\\n\"\n\n#Since put_title() and show_title() are not part of the base class, \n#they are not accessible via the base pointer p and must be accessed \n#either directly, or, as shown here, through a pointer to the \n#derived type\ndp[0]=D_ob\ndp[0].put_title(\"The Tempest\")\np[0].show_author()\ndp[0].show_title()\n", + "input": [ + "\n", + "\n", + "\n", + "class B_class:\n", + " def __init__(self):\n", + " self.author=None\n", + " def put_author(self,s):\n", + " self.author=s\n", + " def show_author(self):\n", + " print self.author\n", + " \n", + "class D_class(B_class):\n", + " def __init__(self):\n", + " self.title=None\n", + " def put_title(self,num):\n", + " self.title=num\n", + " def show_title(self):\n", + " print \"Title:\",self.title\n", + " \n", + "#Variable declaration\n", + "p=[B_class()] #acts as a pointer to B_class type\n", + "B_ob=B_class()\n", + "\n", + "dp=[D_class()] #acts as a pointer to D_class type\n", + "D_ob=D_class()\n", + "\n", + "p[0]=B_ob #assigning p to object of base\n", + "\n", + "\n", + "#Access B_class via pointer\n", + "p[0].put_author(\"Tom Clancy\")\n", + "\n", + "#Access D_class via base pointer\n", + "p[0]=D_ob\n", + "p[0].put_author(\"William Shakespeare\")\n", + "\n", + "#Show that each author went into proper object\n", + "B_ob.show_author()\n", + "D_ob.show_author()\n", + "print \"\\n\"\n", + "\n", + "#Since put_title() and show_title() are not part of the base class, \n", + "#they are not accessible via the base pointer p and must be accessed \n", + "#either directly, or, as shown here, through a pointer to the \n", + "#derived type\n", + "dp[0]=D_ob\n", + "dp[0].put_title(\"The Tempest\")\n", + "p[0].show_author()\n", + "dp[0].show_title()\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Tom Clancy\nWilliam Shakespeare\n\n\nWilliam Shakespeare\nTitle: The Tempest\n" + "text": [ + "Tom Clancy\n", + "William Shakespeare\n", + "\n", + "\n", + "William Shakespeare\n", + "Title: The Tempest\n" + ] } ], "prompt_number": 2 @@ -35,19 +97,56 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 15.2, Page Number: 361

" + "source": [ + "

Example 15.2, Page Number: 361

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A short example that uses virtual functions'''\n#All functions in python are effectively virtual, hence virtual keyword not required\n\n\nclass base:\n def who(self): #virtual function\n print \"Base\"\n\nclass first_d(base):\n def who(self): #redifine who() relative to first_d\n print \"First derivation\"\n \nclass second_d(base):\n def who(self): #redifine who() relative to second_d\n print \"Second derivation\"\n \n \n#Variable declaration\nbase_obj=base()\np=[base()]\nfirst_obj=first_d()\nsecond_obj=second_d()\n\np[0]=base_obj\np[0].who() #access base's who\n\np[0]=first_obj\np[0].who() #access first_d's who\n\np[0]=second_obj\np[0].who() #access second_d's who\n\n", + "input": [ + "\n", + "\n", + "class base:\n", + " def who(self): #virtual function\n", + " print \"Base\"\n", + "\n", + "class first_d(base):\n", + " def who(self): #redifine who() relative to first_d\n", + " print \"First derivation\"\n", + " \n", + "class second_d(base):\n", + " def who(self): #redifine who() relative to second_d\n", + " print \"Second derivation\"\n", + " \n", + " \n", + "#Variable declaration\n", + "base_obj=base()\n", + "p=[base()]\n", + "first_obj=first_d()\n", + "second_obj=second_d()\n", + "\n", + "p[0]=base_obj\n", + "p[0].who() #access base's who\n", + "\n", + "p[0]=first_obj\n", + "p[0].who() #access first_d's who\n", + "\n", + "p[0]=second_obj\n", + "p[0].who() #access second_d's who\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Base\nFirst derivation\nSecond derivation\n" + "text": [ + "Base\n", + "First derivation\n", + "Second derivation\n" + ] } ], "prompt_number": 3 @@ -55,19 +154,57 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 15.3, Page Number: 363

" + "source": [ + "

Example 15.3, Page Number: 363

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An example that shows virtual functions are inherited'''\n\n\nclass base:\n def who(self): #virtual function\n print \"Base\"\n\nclass first_d(base):\n def who(self): #redifine who() relative to first_d\n print \"First derivation\"\n \nclass second_d(base):\n #who not defined\n pass\n \n \n#Variable declaration\nbase_obj=base()\np=[base()]\nfirst_obj=first_d()\nsecond_obj=second_d()\n\np[0]=base_obj\np[0].who() #access base's who\n\np[0]=first_obj\np[0].who() #access first_d's who\n\np[0]=second_obj\np[0].who() #access base's who because\n #second_d does not redefine it.\n\n", + "input": [ + "\n", + "\n", + "class base:\n", + " def who(self): #virtual function\n", + " print \"Base\"\n", + "\n", + "class first_d(base):\n", + " def who(self): #redifine who() relative to first_d\n", + " print \"First derivation\"\n", + " \n", + "class second_d(base):\n", + " #who not defined\n", + " pass\n", + " \n", + " \n", + "#Variable declaration\n", + "base_obj=base()\n", + "p=[base()]\n", + "first_obj=first_d()\n", + "second_obj=second_d()\n", + "\n", + "p[0]=base_obj\n", + "p[0].who() #access base's who\n", + "\n", + "p[0]=first_obj\n", + "p[0].who() #access first_d's who\n", + "\n", + "p[0]=second_obj\n", + "p[0].who() #access base's who because\n", + " #second_d does not redefine it.\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Base\nFirst derivation\nBase\n" + "text": [ + "Base\n", + "First derivation\n", + "Base\n" + ] } ], "prompt_number": 4 @@ -75,19 +212,58 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 15.4, Page Number: 364

" + "source": [ + "

Example 15.4, Page Number: 364

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Virtual function in hierarchical inheritance'''\n\n\nclass base:\n def who(self): #virtual function\n print \"Base\"\n\nclass first_d(base):\n def who(self): #redifine who() relative to first_d\n print \"First derivation\"\n \n#second_d now inherited first_d -- not base\nclass second_d(first_d):\n #who not defined\n pass\n \n \n#Variable declaration\nbase_obj=base()\np=[base()]\nfirst_obj=first_d()\nsecond_obj=second_d()\n\np[0]=base_obj\np[0].who() #access base's who\n\np[0]=first_obj\np[0].who() #access first_d's who\n\np[0]=second_obj\np[0].who() #access first_d's who because\n #second_d does not redefine it.\n\n", + "input": [ + "\n", + "\n", + "class base:\n", + " def who(self): #virtual function\n", + " print \"Base\"\n", + "\n", + "class first_d(base):\n", + " def who(self): #redifine who() relative to first_d\n", + " print \"First derivation\"\n", + " \n", + "#second_d now inherited first_d -- not base\n", + "class second_d(first_d):\n", + " #who not defined\n", + " pass\n", + " \n", + " \n", + "#Variable declaration\n", + "base_obj=base()\n", + "p=[base()]\n", + "first_obj=first_d()\n", + "second_obj=second_d()\n", + "\n", + "p[0]=base_obj\n", + "p[0].who() #access base's who\n", + "\n", + "p[0]=first_obj\n", + "p[0].who() #access first_d's who\n", + "\n", + "p[0]=second_obj\n", + "p[0].who() #access first_d's who because\n", + " #second_d does not redefine it.\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Base\nFirst derivation\nFirst derivation\n" + "text": [ + "Base\n", + "First derivation\n", + "First derivation\n" + ] } ], "prompt_number": 5 @@ -95,19 +271,64 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 15.5, Page Number: 366

" + "source": [ + "

Example 15.5, Page Number: 366

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A simple application of virtual functions'''\n\nclass figure:\n def __init__(self):\n self._x=None\n self._y=None\n def set_dim(self,i,j):\n self._x=i\n self._y=j\n def show_area(self):\n print \"No area computation defined\",\n print \"for this class.\"\n \nclass triangle(figure):\n def show_area(self):\n print \"Triangle with height\",\n print self._x,\"and base\",self._y,\n print \"has an area of\",\n print self._x*0.5*self._y,\".\"\n \nclass rectangle(figure):\n def show_area(self):\n print \"Rectangle with dimensions\",\n print self._x,\"x\",self._y,\n print \"has an area of\",\n print self._x*self._y,\".\"\n \n#Variable declaration\np=[figure()] #pointer to base type\nt=triangle() #objects of derived type\nr=rectangle()\n\np[0]=t\np[0].set_dim(10.0,5.0)\np[0].show_area()\n\np[0]=r\np[0].set_dim(10.0,5.0)\np[0].show_area()\n ", + "input": [ + "\n", + "class figure:\n", + " def __init__(self):\n", + " self._x=None\n", + " self._y=None\n", + " def set_dim(self,i,j):\n", + " self._x=i\n", + " self._y=j\n", + " def show_area(self):\n", + " print \"No area computation defined\",\n", + " print \"for this class.\"\n", + " \n", + "class triangle(figure):\n", + " def show_area(self):\n", + " print \"Triangle with height\",\n", + " print self._x,\"and base\",self._y,\n", + " print \"has an area of\",\n", + " print self._x*0.5*self._y,\".\"\n", + " \n", + "class rectangle(figure):\n", + " def show_area(self):\n", + " print \"Rectangle with dimensions\",\n", + " print self._x,\"x\",self._y,\n", + " print \"has an area of\",\n", + " print self._x*self._y,\".\"\n", + " \n", + "#Variable declaration\n", + "p=[figure()] #pointer to base type\n", + "t=triangle() #objects of derived type\n", + "r=rectangle()\n", + "\n", + "p[0]=t\n", + "p[0].set_dim(10.0,5.0)\n", + "p[0].show_area()\n", + "\n", + "p[0]=r\n", + "p[0].set_dim(10.0,5.0)\n", + "p[0].show_area()\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Triangle with height 10.0 and base 5.0 has an area of 25.0 .\nRectangle with dimensions 10.0 x 5.0 has an area of 50.0 .\n" + "text": [ + "Triangle with height 10.0 and base 5.0 has an area of 25.0 .\n", + "Rectangle with dimensions 10.0 x 5.0 has an area of 50.0 .\n" + ] } ], "prompt_number": 6 @@ -115,19 +336,78 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 15.6, Page Number: 368

" + "source": [ + "

Example 15.6, Page Number: 368

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An expanded version of previous program'''\n\nclass figure:\n def __init__(self):\n self._x=None\n self._y=None\n def set_dim(self,i,j=0):\n self._x=i\n self._y=j\n def show_area(self):\n print \"No area computation defined\",\n print \"for this class.\"\n \nclass triangle(figure):\n def show_area(self):\n print \"Triangle with height\",\n print self._x,\"and base\",self._y,\n print \"has an area of\",\n print self._x*0.5*self._y,\".\"\n \nclass rectangle(figure):\n def show_area(self):\n print \"Rectangle with dimensions\",\n print self._x,\"x\",self._y,\n print \"has an area of\",\n print self._x*self._y,\".\"\n \nclass circle(figure):\n def show_area(self):\n print \"Circle with radius\",\n print self._x,\n print \"has an area of\",\n print 3.14*self._x*self._x,\".\"\n \n \n#Variable declaration\np=[figure()] #pointer to base type\nt=triangle() #objects of derived type\nr=rectangle()\nc=circle()\n\np[0]=t\np[0].set_dim(10.0,5.0)\np[0].show_area()\n\np[0]=r\np[0].set_dim(10.0,5.0)\np[0].show_area()\n\np[0]=c\np[0].set_dim(9.0)\np[0].show_area()\n ", + "input": [ + "\n", + "class figure:\n", + " def __init__(self):\n", + " self._x=None\n", + " self._y=None\n", + " def set_dim(self,i,j=0):\n", + " self._x=i\n", + " self._y=j\n", + " def show_area(self):\n", + " print \"No area computation defined\",\n", + " print \"for this class.\"\n", + " \n", + "class triangle(figure):\n", + " def show_area(self):\n", + " print \"Triangle with height\",\n", + " print self._x,\"and base\",self._y,\n", + " print \"has an area of\",\n", + " print self._x*0.5*self._y,\".\"\n", + " \n", + "class rectangle(figure):\n", + " def show_area(self):\n", + " print \"Rectangle with dimensions\",\n", + " print self._x,\"x\",self._y,\n", + " print \"has an area of\",\n", + " print self._x*self._y,\".\"\n", + " \n", + "class circle(figure):\n", + " def show_area(self):\n", + " print \"Circle with radius\",\n", + " print self._x,\n", + " print \"has an area of\",\n", + " print 3.14*self._x*self._x,\".\"\n", + " \n", + " \n", + "#Variable declaration\n", + "p=[figure()] #pointer to base type\n", + "t=triangle() #objects of derived type\n", + "r=rectangle()\n", + "c=circle()\n", + "\n", + "p[0]=t\n", + "p[0].set_dim(10.0,5.0)\n", + "p[0].show_area()\n", + "\n", + "p[0]=r\n", + "p[0].set_dim(10.0,5.0)\n", + "p[0].show_area()\n", + "\n", + "p[0]=c\n", + "p[0].set_dim(9.0)\n", + "p[0].show_area()\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Triangle with height 10.0 and base 5.0 has an area of 25.0 .\nRectangle with dimensions 10.0 x 5.0 has an area of 50.0 .\nCircle with radius 9.0 has an area of 254.34 .\n" + "text": [ + "Triangle with height 10.0 and base 5.0 has an area of 25.0 .\n", + "Rectangle with dimensions 10.0 x 5.0 has an area of 50.0 .\n", + "Circle with radius 9.0 has an area of 254.34 .\n" + ] } ], "prompt_number": 7 @@ -135,7 +415,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_16(1).ipynb b/C++_from_the_Ground/Chapter_16(1).ipynb index afb4b4f1..941febba 100644 --- a/C++_from_the_Ground/Chapter_16(1).ipynb +++ b/C++_from_the_Ground/Chapter_16(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 16" + "name": "", + "signature": "sha256:bbf24dca4298d6f4bb5217612c0027ad0473157ec0c530ae82f2e0944bb06ddf" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,62 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 16: Templates

" + "source": [ + "

Chapter 16: Templates

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 16.1, Page Number: 376

" + "source": [ + "

Example 16.1, Page Number: 376

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of templates'''\n\n#The concept of template in in-built in python,hence this is a function template\ndef swapargs(a,b):\n temp=a[0]\n a[0]=b[0]\n b[0]=temp\n\n#Variable declaration\ni=[10]\nj=[20]\nx=[10.1]\ny=[23.3]\na=['x']\nb=['z']\n\nprint \"Original i, j: \",i[0],j[0]\nprint \"Original x,y: \",x[0],y[0]\nprint \"Original a,b: \",a[0],b[0]\n\nswapargs(i,j) #swap integers\nswapargs(x,y) #swap floats\nswapargs(a,b) #swap chars\n\n#Result\nprint \"Swapped i, j: \",i[0],j[0]\nprint \"Swapped x,y: \",x[0],y[0]\nprint \"Swapped a,b: \",a[0],b[0]", + "input": [ + "\n", + "def swapargs(a,b):\n", + " temp=a[0]\n", + " a[0]=b[0]\n", + " b[0]=temp\n", + "\n", + "#Variable declaration\n", + "i=[10]\n", + "j=[20]\n", + "x=[10.1]\n", + "y=[23.3]\n", + "a=['x']\n", + "b=['z']\n", + "\n", + "print \"Original i, j: \",i[0],j[0]\n", + "print \"Original x,y: \",x[0],y[0]\n", + "print \"Original a,b: \",a[0],b[0]\n", + "\n", + "swapargs(i,j) #swap integers\n", + "swapargs(x,y) #swap floats\n", + "swapargs(a,b) #swap chars\n", + "\n", + "#Result\n", + "print \"Swapped i, j: \",i[0],j[0]\n", + "print \"Swapped x,y: \",x[0],y[0]\n", + "print \"Swapped a,b: \",a[0],b[0]" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Original i, j: 10 20\nOriginal x,y: 10.1 23.3\nOriginal a,b: x z\nSwapped i, j: 20 10\nSwapped x,y: 23.3 10.1\nSwapped a,b: z x\n" + "text": [ + "Original i, j: 10 20\n", + "Original x,y: 10.1 23.3\n", + "Original a,b: x z\n", + "Swapped i, j: 20 10\n", + "Swapped x,y: 23.3 10.1\n", + "Swapped a,b: z x\n" + ] } ], "prompt_number": 1 @@ -35,19 +74,31 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 16.2, Page Number: 378

" + "source": [ + "

Example 16.2, Page Number: 378

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Template for two generic types'''\n\ndef myfunc(x,y):\n print x,y\n \nmyfunc(10,\"hi\")\nmyfunc(0.23,10L)", + "input": [ + "\n", + "def myfunc(x,y):\n", + " print x,y\n", + " \n", + "myfunc(10,\"hi\")\n", + "myfunc(0.23,10L)" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 hi\n0.23 10\n" + "text": [ + "10 hi\n", + "0.23 10\n" + ] } ], "prompt_number": 3 @@ -55,19 +106,65 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 16.3, Page Number: 379

" + "source": [ + "

Example 16.3, Page Number: 379

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Overloading generic functions'''\n\ndef swapargs(a,b):\n if isinstance(a[0],int): #integer version\n temp=a[0]\n a[0]=b[0]\n b[0]=temp\n print \"Inside swapargs int specialization.\"\n else: #generic version\n temp=a[0]\n a[0]=b[0]\n b[0]=temp\n print \"Inside template swapargs.\"\n\n#Variable declaration\ni=[10]\nj=[20]\nx=[10.1]\ny=[23.3]\na=['x']\nb=['z']\n\nprint \"Original i, j: \",i[0],j[0]\nprint \"Original x,y: \",x[0],y[0]\nprint \"Original a,b: \",a[0],b[0]\n\nswapargs(i,j) #calls explicitly overloaded swapargs()\nswapargs(x,y) #calls generic swapargs()\nswapargs(a,b) #calls generic swapargs()\n\n#Result\nprint \"Swapped i, j: \",i[0],j[0]\nprint \"Swapped x,y: \",x[0],y[0]\nprint \"Swapped a,b: \",a[0],b[0]", + "input": [ + "\n", + "def swapargs(a,b):\n", + " if isinstance(a[0],int): #integer version\n", + " temp=a[0]\n", + " a[0]=b[0]\n", + " b[0]=temp\n", + " print \"Inside swapargs int specialization.\"\n", + " else: #generic version\n", + " temp=a[0]\n", + " a[0]=b[0]\n", + " b[0]=temp\n", + " print \"Inside template swapargs.\"\n", + "\n", + "#Variable declaration\n", + "i=[10]\n", + "j=[20]\n", + "x=[10.1]\n", + "y=[23.3]\n", + "a=['x']\n", + "b=['z']\n", + "\n", + "print \"Original i, j: \",i[0],j[0]\n", + "print \"Original x,y: \",x[0],y[0]\n", + "print \"Original a,b: \",a[0],b[0]\n", + "\n", + "swapargs(i,j) #calls explicitly overloaded swapargs()\n", + "swapargs(x,y) #calls generic swapargs()\n", + "swapargs(a,b) #calls generic swapargs()\n", + "\n", + "#Result\n", + "print \"Swapped i, j: \",i[0],j[0]\n", + "print \"Swapped x,y: \",x[0],y[0]\n", + "print \"Swapped a,b: \",a[0],b[0]" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Original i, j: 10 20\nOriginal x,y: 10.1 23.3\nOriginal a,b: x z\nInside swapargs int specialization.\nInside template swapargs.\nInside template swapargs.\nSwapped i, j: 20 10\nSwapped x,y: 23.3 10.1\nSwapped a,b: z x\n" + "text": [ + "Original i, j: 10 20\n", + "Original x,y: 10.1 23.3\n", + "Original a,b: x z\n", + "Inside swapargs int specialization.\n", + "Inside template swapargs.\n", + "Inside template swapargs.\n", + "Swapped i, j: 20 10\n", + "Swapped x,y: 23.3 10.1\n", + "Swapped a,b: z x\n" + ] } ], "prompt_number": 2 @@ -75,19 +172,34 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 16.4, Page Number: 381

" + "source": [ + "

Example 16.4, Page Number: 381

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Overload a function template declaration'''\n\n#Function version of f() template\ndef f(a,b=None):\n if(b==None): #First version of f()\n print \"Inside f(X a)\"\n else: #Second version of f()\n print \"Inside f(X a, Y b)\"\n \nf(10) #calls f(X)\nf(10,20) #calls f(X,Y)", + "input": [ + "\n", + "def f(a,b=None):\n", + " if(b==None): #First version of f()\n", + " print \"Inside f(X a)\"\n", + " else: #Second version of f()\n", + " print \"Inside f(X a, Y b)\"\n", + " \n", + "f(10) #calls f(X)\n", + "f(10,20) #calls f(X,Y)" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Inside f(X a)\nInside f(X a, Y b)\n" + "text": [ + "Inside f(X a)\n", + "Inside f(X a, Y b)\n" + ] } ], "prompt_number": 4 @@ -95,19 +207,45 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 16.5, Page Number: 382

" + "source": [ + "

Example 16.5, Page Number: 382

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing templates in python'''\n\n#Display data specified number of times.\ndef repeat(data,times):\n while times:\n print data\n times-=1\n \nrepeat(\"This is a test\",3)\nrepeat(100,5)\nrepeat(99.0/2, 4)\n", + "input": [ + "\n", + "#Display data specified number of times.\n", + "def repeat(data,times):\n", + " while times:\n", + " print data\n", + " times-=1\n", + " \n", + "repeat(\"This is a test\",3)\n", + "repeat(100,5)\n", + "repeat(99.0/2, 4)\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "This is a test\nThis is a test\nThis is a test\n100\n100\n100\n100\n100\n49.5\n49.5\n49.5\n49.5\n" + "text": [ + "This is a test\n", + "This is a test\n", + "This is a test\n", + "100\n", + "100\n", + "100\n", + "100\n", + "100\n", + "49.5\n", + "49.5\n", + "49.5\n", + "49.5\n" + ] } ], "prompt_number": 5 @@ -115,19 +253,39 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 16.6, Page Number: 383

" + "source": [ + "

Example 16.6, Page Number: 383

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A generic version of myabs()'''\n\ndef myabs(val):\n if val<0:\n return -val\n else:\n return val\n\n#Result\nprint myabs(-10)\nprint myabs(-10.0)\nprint myabs(-10L)\nprint myabs(-10.0)\n", + "input": [ + "\n", + "def myabs(val):\n", + " if val<0:\n", + " return -val\n", + " else:\n", + " return val\n", + "\n", + "#Result\n", + "print myabs(-10)\n", + "print myabs(-10.0)\n", + "print myabs(-10L)\n", + "print myabs(-10.0)\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10\n10.0\n10\n10.0\n" + "text": [ + "10\n", + "10.0\n", + "10\n", + "10.0\n" + ] } ], "prompt_number": 6 @@ -135,19 +293,73 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 16.7, Page Number: 385

" + "source": [ + "

Example 16.7, Page Number: 385

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing a generic queue class'''\n\ndef SIZE():\n return 100\nclass queue:\n def __init__(self):\n self.q=[]\n self.sloc=self.rloc=0\n #Put an object into the queue\n def qput(self,i):\n if self.sloc==SIZE():\n print \"Queue is full.\"\n return\n self.sloc+=1\n self.q.append(i)\n #Get an object from the queue.\n def qget(self):\n if self.rloc==self.sloc:\n print \"Queue Underflow.\"\n return\n a=self.rloc\n self.rloc+=1\n return self.q[a]\n \n#Create two integer queues\na=queue()\nb=queue()\na.qput(10)\nb.qput(19)\na.qput(20)\nb.qput(1)\n\nprint a.qget(),\nprint a.qget(),\nprint b.qget(),\nprint b.qget()\n\n#Create two double queues\nc=queue()\nd=queue()\nc.qput(10.12)\nd.qput(19.99)\nc.qput(-20.0)\nd.qput(0.986)\n\nprint c.qget(),\nprint c.qget(),\nprint d.qget(),\nprint d.qget()\n", + "input": [ + "\n", + "def SIZE():\n", + " return 100\n", + "class queue:\n", + " def __init__(self):\n", + " self.q=[]\n", + " self.sloc=self.rloc=0\n", + " #Put an object into the queue\n", + " def qput(self,i):\n", + " if self.sloc==SIZE():\n", + " print \"Queue is full.\"\n", + " return\n", + " self.sloc+=1\n", + " self.q.append(i)\n", + " #Get an object from the queue.\n", + " def qget(self):\n", + " if self.rloc==self.sloc:\n", + " print \"Queue Underflow.\"\n", + " return\n", + " a=self.rloc\n", + " self.rloc+=1\n", + " return self.q[a]\n", + " \n", + "#Create two integer queues\n", + "a=queue()\n", + "b=queue()\n", + "a.qput(10)\n", + "b.qput(19)\n", + "a.qput(20)\n", + "b.qput(1)\n", + "\n", + "print a.qget(),\n", + "print a.qget(),\n", + "print b.qget(),\n", + "print b.qget()\n", + "\n", + "#Create two double queues\n", + "c=queue()\n", + "d=queue()\n", + "c.qput(10.12)\n", + "d.qput(19.99)\n", + "c.qput(-20.0)\n", + "d.qput(0.986)\n", + "\n", + "print c.qget(),\n", + "print c.qget(),\n", + "print d.qget(),\n", + "print d.qget()\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 20 19 1\n10.12 -20.0 19.99 0.986\n" + "text": [ + "10 20 19 1\n", + "10.12 -20.0 19.99 0.986\n" + ] } ], "prompt_number": 7 @@ -155,19 +367,39 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 16.8, Page Number: 387

" + "source": [ + "

Example 16.8, Page Number: 387

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Two generic types in a class'''\n\nclass myclass:\n def __init__(self,a,b):\n self.__i=a\n self.__j=b\n def show(self):\n print self.__i,self.__j\n\nob1=myclass(10,0.23)\nob2=myclass('X',\"This is a test\")\n\n#Result\nob1.show() #Show int,double\nob2.show() #Show char.char*\n", + "input": [ + "\n", + "class myclass:\n", + " def __init__(self,a,b):\n", + " self.__i=a\n", + " self.__j=b\n", + " def show(self):\n", + " print self.__i,self.__j\n", + "\n", + "ob1=myclass(10,0.23)\n", + "ob2=myclass('X',\"This is a test\")\n", + "\n", + "#Result\n", + "ob1.show() #Show int,double\n", + "ob2.show() #Show char.char*\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 0.23\nX This is a test\n" + "text": [ + "10 0.23\n", + "X This is a test\n" + ] } ], "prompt_number": 8 @@ -175,19 +407,69 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 16.9, Page Number: 388

" + "source": [ + "

Example 16.9, Page Number: 388

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A generic safe array example'''\n\n#Defining constant\ndef SIZE():\n return 10\n\nclass atype:\n def __init__(self):\n self.a=[]\n for i in range(SIZE()):\n self.a.append(i)\n #Implementing the [] overloading\n def op1(self,i,j):\n if (i<0 or i>=SIZE()):\n print \"\\nIndex value of \",\n print i,\" is out-of-bounds.\"\n return \n self.a[i]=j\n def op2(self,i):\n if (i<0 or i>SIZE()-1):\n print \"\\nIndex value of \",\n print i,\" is out-of-bounds.\"\n return\n return self.a[i]\n \n#Variable declaration\nintob=atype()\ndoubleob=atype()\n \nprint \"Integer array: \",\nfor i in range(SIZE()):\n intob.op1(i,i)\nfor i in range(SIZE()):\n print intob.op2(i),\n \nprint \"\"\n\nprint \"Double array: \",\nfor i in range(SIZE()):\n doubleob.op1(i,float(i)/3)\nfor i in range(SIZE()):\n print doubleob.op2(i),\n \nintob.op1(12,100)", + "input": [ + "\n", + "#Defining constant\n", + "def SIZE():\n", + " return 10\n", + "\n", + "class atype:\n", + " def __init__(self):\n", + " self.a=[]\n", + " for i in range(SIZE()):\n", + " self.a.append(i)\n", + " #Implementing the [] overloading\n", + " def op1(self,i,j):\n", + " if (i<0 or i>=SIZE()):\n", + " print \"\\nIndex value of \",\n", + " print i,\" is out-of-bounds.\"\n", + " return \n", + " self.a[i]=j\n", + " def op2(self,i):\n", + " if (i<0 or i>SIZE()-1):\n", + " print \"\\nIndex value of \",\n", + " print i,\" is out-of-bounds.\"\n", + " return\n", + " return self.a[i]\n", + " \n", + "#Variable declaration\n", + "intob=atype()\n", + "doubleob=atype()\n", + " \n", + "print \"Integer array: \",\n", + "for i in range(SIZE()):\n", + " intob.op1(i,i)\n", + "for i in range(SIZE()):\n", + " print intob.op2(i),\n", + " \n", + "print \"\"\n", + "\n", + "print \"Double array: \",\n", + "for i in range(SIZE()):\n", + " doubleob.op1(i,float(i)/3)\n", + "for i in range(SIZE()):\n", + " print doubleob.op2(i),\n", + " \n", + "intob.op1(12,100)" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Integer array: 0 1 2 3 4 5 6 7 8 9 \nDouble array: 0.0 0.333333333333 0.666666666667 1.0 1.33333333333 1.66666666667 2.0 2.33333333333 2.66666666667 3.0 \nIndex value of 12 is out-of-bounds.\n" + "text": [ + "Integer array: 0 1 2 3 4 5 6 7 8 9 \n", + "Double array: 0.0 0.333333333333 0.666666666667 1.0 1.33333333333 1.66666666667 2.0 2.33333333333 2.66666666667 3.0 \n", + "Index value of 12 is out-of-bounds.\n" + ] } ], "prompt_number": 1 @@ -195,19 +477,66 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 16.10, Page Number: 389

" + "source": [ + "

Example 16.10, Page Number: 389

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing non-type template arguments'''\n\nclass atype:\n def __init__(self,size):\n self.a=[]\n self.size=size\n for i in range(size):\n self.a.append(i)\n #Implementing the [] overloading\n def op1(self,i,j):\n if (i<0 or i>self.size-1):\n print \"\\nIndex value of \",\n print i,\" is out-of-bounds.\"\n return\n self.a[i]=j\n def op2(self,i):\n if (i<0 or i>self.size-1):\n print \"\\nIndex value of \",\n print i,\" is out-of-bounds.\"\n return\n return self.a[i]\n \n#Variable declaration\nintob=atype(10)\ndoubleob=atype(15)\n \nprint \"Integer array: \",\nfor i in range(10):\n intob.op1(i,i)\nfor i in range(10):\n print intob.op2(i),\n \nprint \"\"\n\nprint \"Double array: \",\nfor i in range(15):\n doubleob.op1(i,float(i)/3)\nfor i in range(15):\n print doubleob.op2(i),\n \nintob.op1(12,100) #generates runtime error\n", + "input": [ + "\n", + "class atype:\n", + " def __init__(self,size):\n", + " self.a=[]\n", + " self.size=size\n", + " for i in range(size):\n", + " self.a.append(i)\n", + " #Implementing the [] overloading\n", + " def op1(self,i,j):\n", + " if (i<0 or i>self.size-1):\n", + " print \"\\nIndex value of \",\n", + " print i,\" is out-of-bounds.\"\n", + " return\n", + " self.a[i]=j\n", + " def op2(self,i):\n", + " if (i<0 or i>self.size-1):\n", + " print \"\\nIndex value of \",\n", + " print i,\" is out-of-bounds.\"\n", + " return\n", + " return self.a[i]\n", + " \n", + "#Variable declaration\n", + "intob=atype(10)\n", + "doubleob=atype(15)\n", + " \n", + "print \"Integer array: \",\n", + "for i in range(10):\n", + " intob.op1(i,i)\n", + "for i in range(10):\n", + " print intob.op2(i),\n", + " \n", + "print \"\"\n", + "\n", + "print \"Double array: \",\n", + "for i in range(15):\n", + " doubleob.op1(i,float(i)/3)\n", + "for i in range(15):\n", + " print doubleob.op2(i),\n", + " \n", + "intob.op1(12,100) #generates runtime error\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Integer array: 0 1 2 3 4 5 6 7 8 9 \nDouble array: 0.0 0.333333333333 0.666666666667 1.0 1.33333333333 1.66666666667 2.0 2.33333333333 2.66666666667 3.0 3.33333333333 3.66666666667 4.0 4.33333333333 4.66666666667 \nIndex value of 12 is out-of-bounds.\n" + "text": [ + "Integer array: 0 1 2 3 4 5 6 7 8 9 \n", + "Double array: 0.0 0.333333333333 0.666666666667 1.0 1.33333333333 1.66666666667 2.0 2.33333333333 2.66666666667 3.0 3.33333333333 3.66666666667 4.0 4.33333333333 4.66666666667 \n", + "Index value of 12 is out-of-bounds.\n" + ] } ], "prompt_number": 2 @@ -215,19 +544,73 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 16.11, Page Number: 391

" + "source": [ + "

Example 16.11, Page Number: 391

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A generic safe array example with default arguments'''\n\nclass atype:\n def __init__(self,size=10):\n self.a=[]\n for i in range(size):\n self.a.append(i)\n #Implementing the [] overloading\n def op1(self,i,j):\n if (i<0 and i>SIZE()-1):\n print \"Index value of \"\n print i,\" is out-of-bounds.\"\n exit(1)\n self.a[i]=j\n def op2(self,i):\n if (i<0 and i>SIZE()-1):\n print \"Index value of \"\n print i,\" is out-of-bounds.\"\n exit()\n return self.a[i]\n \n#Variable declaration\nintob=atype(100)\ndoubleob=atype()\ndefarray=atype()\n \nprint \"Integer array: \",\nfor i in range(100):\n intob.op1(i,i)\nfor i in range(100):\n print intob.op2(i),\n \nprint \"\"\n\nprint \"Double array: \",\nfor i in range(10):\n doubleob.op1(i,float(i)/3)\nfor i in range(10):\n print doubleob.op2(i),\n \nprint \"\"\n\nprint \"Defarray array: \",\nfor i in range(10):\n doubleob.op1(i,i)\nfor i in range(10):\n print doubleob.op2(i),\n\n", + "input": [ + "\n", + "class atype:\n", + " def __init__(self,size=10):\n", + " self.a=[]\n", + " for i in range(size):\n", + " self.a.append(i)\n", + " #Implementing the [] overloading\n", + " def op1(self,i,j):\n", + " if (i<0 and i>SIZE()-1):\n", + " print \"Index value of \"\n", + " print i,\" is out-of-bounds.\"\n", + " exit(1)\n", + " self.a[i]=j\n", + " def op2(self,i):\n", + " if (i<0 and i>SIZE()-1):\n", + " print \"Index value of \"\n", + " print i,\" is out-of-bounds.\"\n", + " exit()\n", + " return self.a[i]\n", + " \n", + "#Variable declaration\n", + "intob=atype(100)\n", + "doubleob=atype()\n", + "defarray=atype()\n", + " \n", + "print \"Integer array: \",\n", + "for i in range(100):\n", + " intob.op1(i,i)\n", + "for i in range(100):\n", + " print intob.op2(i),\n", + " \n", + "print \"\"\n", + "\n", + "print \"Double array: \",\n", + "for i in range(10):\n", + " doubleob.op1(i,float(i)/3)\n", + "for i in range(10):\n", + " print doubleob.op2(i),\n", + " \n", + "print \"\"\n", + "\n", + "print \"Defarray array: \",\n", + "for i in range(10):\n", + " doubleob.op1(i,i)\n", + "for i in range(10):\n", + " print doubleob.op2(i),\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Integer array: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 \nDouble array: 0.0 0.333333333333 0.666666666667 1.0 1.33333333333 1.66666666667 2.0 2.33333333333 2.66666666667 3.0 \nDefarray array: 0 1 2 3 4 5 6 7 8 9\n" + "text": [ + "Integer array: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 \n", + "Double array: 0.0 0.333333333333 0.666666666667 1.0 1.33333333333 1.66666666667 2.0 2.33333333333 2.66666666667 3.0 \n", + "Defarray array: 0 1 2 3 4 5 6 7 8 9\n" + ] } ], "prompt_number": 3 @@ -235,19 +618,45 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 16.12, Page Number: 393

" + "source": [ + "

Example 16.12, Page Number: 393

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate class specialization'''\n\nclass myclass:\n def __init__(self,a):\n if isinstance(a,int):\n print \"Inside myclassspecialization\"\n self.__x=a*a\n else:\n print \"Inside generic myclass\"\n self.__x=a\n def getx(self):\n return self.__x\n \nd=myclass(10.1)\nprint \"double: \",d.getx(),\"\\n\"\n\ni=myclass(5)\nprint \"int: \",i.getx()\n", + "input": [ + "\n", + "class myclass:\n", + " def __init__(self,a):\n", + " if isinstance(a,int):\n", + " print \"Inside myclassspecialization\"\n", + " self.__x=a*a\n", + " else:\n", + " print \"Inside generic myclass\"\n", + " self.__x=a\n", + " def getx(self):\n", + " return self.__x\n", + " \n", + "d=myclass(10.1)\n", + "print \"double: \",d.getx(),\"\\n\"\n", + "\n", + "i=myclass(5)\n", + "print \"int: \",i.getx()\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Inside generic myclass\ndouble: 10.1 \n\nInside myclassspecialization\nint: 25\n" + "text": [ + "Inside generic myclass\n", + "double: 10.1 \n", + "\n", + "Inside myclassspecialization\n", + "int: 25\n" + ] } ], "prompt_number": 4 @@ -255,7 +664,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_17(1).ipynb b/C++_from_the_Ground/Chapter_17(1).ipynb index 8694627c..c50f48aa 100644 --- a/C++_from_the_Ground/Chapter_17(1).ipynb +++ b/C++_from_the_Ground/Chapter_17(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 17" + "name": "", + "signature": "sha256:636fe844c88ef46d09064f199c6b3a4c62e262611a41cc6f126f08459b94982e" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,46 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 17: Exception Handling

" + "source": [ + "

Chapter 17: Exception Handling

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 17.1, Page Number: 397

" + "source": [ + "

Example 17.1, Page Number: 397

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A simple exception handling example'''\n\nprint \"start\"\n\ntry: #start a try block\n print \"Inside try block\"\n raise Exception(99) #raise an error\n print \"This will not execute\"\nexcept Exception,i: #catch an error\n print \"Caught an exception -- value is:\",\n print i\n\nprint \"end\"", + "input": [ + "\n", + "print \"start\"\n", + "\n", + "try: #start a try block\n", + " print \"Inside try block\"\n", + " raise Exception(99) #raise an error\n", + " print \"This will not execute\"\n", + "except Exception,i: #catch an error\n", + " print \"Caught an exception -- value is:\",\n", + " print i\n", + "\n", + "print \"end\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "start\nInside try block\nCaught an exception -- value is: 99\nend\n" + "text": [ + "start\n", + "Inside try block\n", + "Caught an exception -- value is: 99\n", + "end\n" + ] } ], "prompt_number": 1 @@ -35,19 +58,49 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 17.2, Page Number: 399

" + "source": [ + "

Example 17.2, Page Number: 399

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''A simple exception handling example'''\n\nimport sys\n\n\n\ndef main():\n print \"start\"\n try: #start a try block\n print \"Inside try block\"\n raise Exception(99) #raise an error\n print \"This will not execute\"\n except Exception,i: #catch an error\n if isinstance(i,float):\n print \"Caught an exception -- value is:\",\n print i\n else:\n print \"Abnormal program termination\"\n return\n print \"end\"\n\n \nmain()", + "input": [ + "\n", + "\n", + "import sys\n", + "\n", + "\n", + "\n", + "def main():\n", + " print \"start\"\n", + " try: #start a try block\n", + " print \"Inside try block\"\n", + " raise Exception(99) #raise an error\n", + " print \"This will not execute\"\n", + " except Exception,i: #catch an error\n", + " if isinstance(i,float):\n", + " print \"Caught an exception -- value is:\",\n", + " print i\n", + " else:\n", + " print \"Abnormal program termination\"\n", + " return\n", + " print \"end\"\n", + "\n", + " \n", + "main()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "start\nInside try block\nAbnormal program termination\n" + "text": [ + "start\n", + "Inside try block\n", + "Abnormal program termination\n" + ] } ], "prompt_number": 1 @@ -55,19 +108,47 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 17.3, Page Number: 400

" + "source": [ + "

Example 17.3, Page Number: 400

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Throwing an exception from a function called \n from within a try block'''\n\ndef Xtest(test):\n print \"Inside Xtest, test is: \",test\n if(test):\n raise Exception(test)\n \nprint \"start\"\n\ntry: #start a try block\n print \"Inside try block\"\n Xtest(0)\n Xtest(1)\n Xtest(2)\nexcept Exception,i: #catch an error\n print \"Caught an exception -- value is:\",\n print i\n\nprint \"end\"", + "input": [ + "\n", + "def Xtest(test):\n", + " print \"Inside Xtest, test is: \",test\n", + " if(test):\n", + " raise Exception(test)\n", + " \n", + "print \"start\"\n", + "\n", + "try: #start a try block\n", + " print \"Inside try block\"\n", + " Xtest(0)\n", + " Xtest(1)\n", + " Xtest(2)\n", + "except Exception,i: #catch an error\n", + " print \"Caught an exception -- value is:\",\n", + " print i\n", + "\n", + "print \"end\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "start\nInside try block\nInside Xtest, test is: 0\nInside Xtest, test is: 1\nCaught an exception -- value is: 1\nend\n" + "text": [ + "start\n", + "Inside try block\n", + "Inside Xtest, test is: 0\n", + "Inside Xtest, test is: 1\n", + "Caught an exception -- value is: 1\n", + "end\n" + ] } ], "prompt_number": 2 @@ -75,19 +156,44 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 17.4, Page Number: 401

" + "source": [ + "

Example 17.4, Page Number: 401

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A try/except is reset each time a function is entered'''\n\ndef Xhandler(test):\n try:\n if(test):\n raise Exception(test)\n except Exception,i:\n print \"Caught One! Ex #:\",i\n \nprint \"start\"\n\nXhandler(1)\nXhandler(2)\nXhandler(0)\nXhandler(3)\n\nprint \"end\"", + "input": [ + "\n", + "def Xhandler(test):\n", + " try:\n", + " if(test):\n", + " raise Exception(test)\n", + " except Exception,i:\n", + " print \"Caught One! Ex #:\",i\n", + " \n", + "print \"start\"\n", + "\n", + "Xhandler(1)\n", + "Xhandler(2)\n", + "Xhandler(0)\n", + "Xhandler(3)\n", + "\n", + "print \"end\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "start\nCaught One! Ex #: 1\nCaught One! Ex #: 2\nCaught One! Ex #: 3\nend\n" + "text": [ + "start\n", + "Caught One! Ex #: 1\n", + "Caught One! Ex #: 2\n", + "Caught One! Ex #: 3\n", + "end\n" + ] } ], "prompt_number": 3 @@ -95,19 +201,47 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 17.5, Page Number: 401

" + "source": [ + "

Example 17.5, Page Number: 401

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Use exception class'''\n\nclass MyException:\n def __init__(self,s):\n self.str_what=s\n \n#Variable declaration\na=None \nb=None\n\ntry:\n print \"Enter numerator and denominator:\"\n #User-input\n a=10 \n b=0\n if not(b):\n raise MyException(\"Cannot divide by zero!\")\n else:\n print \"Quotient is\",a/b\nexcept MyException as e: #catch an error\n print e.str_what\n ", + "input": [ + "\n", + "\n", + "class MyException:\n", + " def __init__(self,s):\n", + " self.str_what=s\n", + " \n", + "#Variable declaration\n", + "a=None \n", + "b=None\n", + "\n", + "try:\n", + " print \"Enter numerator and denominator:\"\n", + " #User-input\n", + " a=10 \n", + " b=0\n", + " if not(b):\n", + " raise MyException(\"Cannot divide by zero!\")\n", + " else:\n", + " print \"Quotient is\",a/b\n", + "except MyException as e: #catch an error\n", + " print e.str_what\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Enter numerator and denominator:\nCannot divide by zero!\n" + "text": [ + "Enter numerator and denominator:\n", + "Cannot divide by zero!\n" + ] } ], "prompt_number": 4 @@ -115,19 +249,55 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 17.6, Page Number: 403

" + "source": [ + "

Example 17.6, Page Number: 403

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Different types of exceptions being caught'''\n\nclass MyException:\n def __init__(self,s):\n self.x=s\n \ndef Xhandler(test):\n try:\n if(test):\n raise MyException(test)\n else:\n raise MyException(\"Value is zero\")\n except MyException as i:\n if isinstance(i.x,int):\n print \"Caught One! Ex #:\",i.x\n else:\n print \"Caught a string:\",\n print i.x\n \nprint \"start\"\n\nXhandler(1)\nXhandler(2)\nXhandler(0)\nXhandler(3)\n\nprint \"end\"", + "input": [ + "\n", + "class MyException:\n", + " def __init__(self,s):\n", + " self.x=s\n", + " \n", + "def Xhandler(test):\n", + " try:\n", + " if(test):\n", + " raise MyException(test)\n", + " else:\n", + " raise MyException(\"Value is zero\")\n", + " except MyException as i:\n", + " if isinstance(i.x,int):\n", + " print \"Caught One! Ex #:\",i.x\n", + " else:\n", + " print \"Caught a string:\",\n", + " print i.x\n", + " \n", + "print \"start\"\n", + "\n", + "Xhandler(1)\n", + "Xhandler(2)\n", + "Xhandler(0)\n", + "Xhandler(3)\n", + "\n", + "print \"end\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "start\nCaught One! Ex #: 1\nCaught One! Ex #: 2\nCaught a string: Value is zero\nCaught One! Ex #: 3\nend\n" + "text": [ + "start\n", + "Caught One! Ex #: 1\n", + "Caught One! Ex #: 2\n", + "Caught a string: Value is zero\n", + "Caught One! Ex #: 3\n", + "end\n" + ] } ], "prompt_number": 5 @@ -135,19 +305,41 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 17.7, Page Number: 404

" + "source": [ + "

Example 17.7, Page Number: 404

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Catching derived classes'''\n\nclass B:\n pass\n\nclass D(B):\n pass\n\nderived=D()\n\ntry:\n raise B()\nexcept B as b:\n print \"Caught a base class.\"\nexcept D as d:\n print \"This wont execute.\"\n ", + "input": [ + "\n", + "\n", + "class B:\n", + " pass\n", + "\n", + "class D(B):\n", + " pass\n", + "\n", + "derived=D()\n", + "\n", + "try:\n", + " raise B()\n", + "except B as b:\n", + " print \"Caught a base class.\"\n", + "except D as d:\n", + " print \"This wont execute.\"\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Caught a base class.\n" + "text": [ + "Caught a base class.\n" + ] } ], "prompt_number": 6 @@ -155,19 +347,47 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 17.8, Page Number: 405

" + "source": [ + "

Example 17.8, Page Number: 405

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Example to catch all exceptions'''\n\ndef Xhandler(test):\n try:\n if test==0:\n raise Exception(test) #throw int\n if test==1:\n raise Exception('a') #throw char\n if test==2:\n raise Exception(123.23) #throw double\n except: #Catches all exceptions\n print \"Caught One!\"\n\nprint \"start\"\n\nXhandler(0)\nXhandler(1)\nXhandler(2)\n\nprint \"end\"", + "input": [ + "\n", + "def Xhandler(test):\n", + " try:\n", + " if test==0:\n", + " raise Exception(test) #throw int\n", + " if test==1:\n", + " raise Exception('a') #throw char\n", + " if test==2:\n", + " raise Exception(123.23) #throw double\n", + " except: #Catches all exceptions\n", + " print \"Caught One!\"\n", + "\n", + "print \"start\"\n", + "\n", + "Xhandler(0)\n", + "Xhandler(1)\n", + "Xhandler(2)\n", + "\n", + "print \"end\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "start\nCaught One!\nCaught One!\nCaught One!\nend\n" + "text": [ + "start\n", + "Caught One!\n", + "Caught One!\n", + "Caught One!\n", + "end\n" + ] } ], "prompt_number": 7 @@ -175,19 +395,55 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 17.9, Page Number: 405

" + "source": [ + "

Example 17.9, Page Number: 405

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Example to catch all exceptions'''\n\nclass MyException:\n def __init__(self,s):\n self.x=s\n \ndef Xhandler(test):\n try:\n if test==0:\n raise MyException(test) #throw int\n if test==1:\n raise MyException('a') #throw char\n if test==2:\n raise MyException(123.23) #throw double\n except MyException as i:\n if isinstance(i.x,int): #catch an int exception\n print \"Caught\",i.x \n else: #catch all other exceptions\n print \"Caught One!\"\n \n\nprint \"start\"\n\nXhandler(0)\nXhandler(1)\nXhandler(2)\n\nprint \"end\"", + "input": [ + "\n", + "class MyException:\n", + " def __init__(self,s):\n", + " self.x=s\n", + " \n", + "def Xhandler(test):\n", + " try:\n", + " if test==0:\n", + " raise MyException(test) #throw int\n", + " if test==1:\n", + " raise MyException('a') #throw char\n", + " if test==2:\n", + " raise MyException(123.23) #throw double\n", + " except MyException as i:\n", + " if isinstance(i.x,int): #catch an int exception\n", + " print \"Caught\",i.x \n", + " else: #catch all other exceptions\n", + " print \"Caught One!\"\n", + " \n", + "\n", + "print \"start\"\n", + "\n", + "Xhandler(0)\n", + "Xhandler(1)\n", + "Xhandler(2)\n", + "\n", + "print \"end\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "start\nCaught 0\nCaught One!\nCaught One!\nend\n" + "text": [ + "start\n", + "Caught 0\n", + "Caught One!\n", + "Caught One!\n", + "end\n" + ] } ], "prompt_number": 8 @@ -195,19 +451,53 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 17.10, Page Number: 407

" + "source": [ + "

Example 17.10, Page Number: 407

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Restricting function throw types'''\n\nclass MyException:\n def __init__(self,s):\n self.x=s\n \n#This function can only throw ints, chars and doubles\ndef Xhandler(test):\n if test==0:\n raise MyException(test) #throw int\n if test==1:\n raise MyException('a') #throw char\n if test==2:\n raise MyException(123.23) #throw double\n \n\nprint \"start\"\ntry:\n Xhandler(0)\nexcept MyException as i:\n if isinstance(i.x,int): #catch an int exception\n print \"Caught int\" \n elif isinstance(i.x,str): #catch a char exception\n print \"Caught char\"\n elif isinstance(i.x,float): #catch a float exception\n print \"Caught double\"\n\nprint \"end\"", + "input": [ + "\n", + "class MyException:\n", + " def __init__(self,s):\n", + " self.x=s\n", + " \n", + "#This function can only throw ints, chars and doubles\n", + "def Xhandler(test):\n", + " if test==0:\n", + " raise MyException(test) #throw int\n", + " if test==1:\n", + " raise MyException('a') #throw char\n", + " if test==2:\n", + " raise MyException(123.23) #throw double\n", + " \n", + "\n", + "print \"start\"\n", + "try:\n", + " Xhandler(0)\n", + "except MyException as i:\n", + " if isinstance(i.x,int): #catch an int exception\n", + " print \"Caught int\" \n", + " elif isinstance(i.x,str): #catch a char exception\n", + " print \"Caught char\"\n", + " elif isinstance(i.x,float): #catch a float exception\n", + " print \"Caught double\"\n", + "\n", + "print \"end\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "start\nCaught int\nend\n" + "text": [ + "start\n", + "Caught int\n", + "end\n" + ] } ], "prompt_number": 9 @@ -215,19 +505,42 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 17.11, Page Number: 408

" + "source": [ + "

Example 17.11, Page Number: 408

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Example of \"rethrowing\" an exception'''\n\ndef Xhandler():\n try:\n raise Exception(\"hello\") #throw a char *\n except Exception,c: #catch a char *\n print \"Caugh char * inside Xhandler\"\n raise #rethrow char * out of function\n \nprint \"start\"\ntry:\n Xhandler()\nexcept Exception,c:\n print \"Caught char * inside main\"\n \nprint \"end\"", + "input": [ + "\n", + "def Xhandler():\n", + " try:\n", + " raise Exception(\"hello\") #throw a char *\n", + " except Exception,c: #catch a char *\n", + " print \"Caugh char * inside Xhandler\"\n", + " raise #rethrow char * out of function\n", + " \n", + "print \"start\"\n", + "try:\n", + " Xhandler()\n", + "except Exception,c:\n", + " print \"Caught char * inside main\"\n", + " \n", + "print \"end\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "start\nCaugh char * inside Xhandler\nCaught char * inside main\nend\n" + "text": [ + "start\n", + "Caugh char * inside Xhandler\n", + "Caught char * inside main\n", + "end\n" + ] } ], "prompt_number": 10 @@ -235,19 +548,43 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 17.12, Page Number: 410

" + "source": [ + "

Example 17.12, Page Number: 410

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Handle exceptions due to allocation failure'''\n\nfrom ctypes import *\n\n#Variable declaration\np=[]\n\ntry:\n for i in range(32):\n p.append(c_int())\nexcept MemoryError,m:\n print \"Allocation failure.\"\n \nfor i in range(32):\n p[i]=i\n \nfor i in range(32):\n print p[i],\n \n ", + "input": [ + "\n", + "from ctypes import *\n", + "\n", + "#Variable declaration\n", + "p=[]\n", + "\n", + "try:\n", + " for i in range(32):\n", + " p.append(c_int())\n", + "except MemoryError,m:\n", + " print \"Allocation failure.\"\n", + " \n", + "for i in range(32):\n", + " p[i]=i\n", + " \n", + "for i in range(32):\n", + " print p[i],\n", + " \n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31\n" + "text": [ + "0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31\n" + ] } ], "prompt_number": 12 @@ -255,19 +592,43 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 17.13, Page Number: 410

" + "source": [ + "

Example 17.13, Page Number: 410

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Checking allocation failure without raising an exception'''\n\nfrom ctypes import *\n\n#Variable declaration\np=[]\n\n\nfor i in range(32):\n p.append(c_int()) \nif not(p):\n print \"Allocation failure.\"\n \nfor i in range(32):\n p[i]=i\n \nfor i in range(32):\n print p[i],\n \n ", + "input": [ + "\n", + "from ctypes import *\n", + "\n", + "#Variable declaration\n", + "p=[]\n", + "\n", + "\n", + "for i in range(32):\n", + " p.append(c_int()) \n", + "if not(p):\n", + " print \"Allocation failure.\"\n", + " \n", + "for i in range(32):\n", + " p[i]=i\n", + " \n", + "for i in range(32):\n", + " print p[i],\n", + " \n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31\n" + "text": [ + "0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31\n" + ] } ], "prompt_number": 13 @@ -275,19 +636,81 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 17.13, Page Number: 412

" + "source": [ + "

Example 17.13, Page Number: 412

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate overloaded new and delete'''\n\nclass three_d:\n def __init__(self,i=0,j=0,k=0): #3=D coordinates\n if(i==0 and j==0 and k==0):\n self.x=self.y=self.z=0\n print \"Constructing 0, 0, 0\"\n else:\n self.x=i\n self.y=j\n self.z=k\n print \"Constructing\",i,\",\",j,\",\",k\n def __del__(self):\n print \"Destructing\"\n #new overloaded relative to three_d.\n def __new__(typ, *args, **kwargs):\n obj = object.__new__(typ, *args, **kwargs)\n return obj\n def show(self):\n print self.x,\",\",\n print self.y,\",\",\n print self.z\n \np1=[]*3\np2=[]\n \ntry:\n print \"Allocating array of three_d objects.\"\n for i in range(3): #allocate array\n p1.append(three_d())\n print \"Allocating three_d object.\"\n p2.append(three_d(5,6,7)) #allocate object\nexcept MemoryError:\n print \"Allocation error\"\n \np1[2].show()\np2[0].show()\n\n\nfor i in xrange(2,-1,-1):\n del p1[i] #delete array\nprint \"Deleting array of thee_d objects.\"\n\ndel p2[0] #delete object\nprint \"Deleting three_d object.\"", + "input": [ + "\n", + "class three_d:\n", + " def __init__(self,i=0,j=0,k=0): #3=D coordinates\n", + " if(i==0 and j==0 and k==0):\n", + " self.x=self.y=self.z=0\n", + " print \"Constructing 0, 0, 0\"\n", + " else:\n", + " self.x=i\n", + " self.y=j\n", + " self.z=k\n", + " print \"Constructing\",i,\",\",j,\",\",k\n", + " def __del__(self):\n", + " print \"Destructing\"\n", + " #new overloaded relative to three_d.\n", + " def __new__(typ, *args, **kwargs):\n", + " obj = object.__new__(typ, *args, **kwargs)\n", + " return obj\n", + " def show(self):\n", + " print self.x,\",\",\n", + " print self.y,\",\",\n", + " print self.z\n", + " \n", + "p1=[]*3\n", + "p2=[]\n", + " \n", + "try:\n", + " print \"Allocating array of three_d objects.\"\n", + " for i in range(3): #allocate array\n", + " p1.append(three_d())\n", + " print \"Allocating three_d object.\"\n", + " p2.append(three_d(5,6,7)) #allocate object\n", + "except MemoryError:\n", + " print \"Allocation error\"\n", + " \n", + "p1[2].show()\n", + "p2[0].show()\n", + "\n", + "\n", + "for i in xrange(2,-1,-1):\n", + " del p1[i] #delete array\n", + "print \"Deleting array of thee_d objects.\"\n", + "\n", + "del p2[0] #delete object\n", + "print \"Deleting three_d object.\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Allocating array of three_d objects.\nConstructing 0, 0, 0\nConstructing 0, 0, 0\nConstructing 0, 0, 0\nAllocating three_d object.\nConstructing 5 , 6 , 7\n0 , 0 , 0\n5 , 6 , 7\nDestructing\nDestructing\nDestructing\nDeleting array of thee_d objects.\nDestructing\nDeleting three_d object.\n" + "text": [ + "Allocating array of three_d objects.\n", + "Constructing 0, 0, 0\n", + "Constructing 0, 0, 0\n", + "Constructing 0, 0, 0\n", + "Allocating three_d object.\n", + "Constructing 5 , 6 , 7\n", + "0 , 0 , 0\n", + "5 , 6 , 7\n", + "Destructing\n", + "Destructing\n", + "Destructing\n", + "Deleting array of thee_d objects.\n", + "Destructing\n", + "Deleting three_d object.\n" + ] } ], "prompt_number": 14 @@ -295,7 +718,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_18(1).ipynb b/C++_from_the_Ground/Chapter_18(1).ipynb index 3ad3c39c..e2cae07f 100644 --- a/C++_from_the_Ground/Chapter_18(1).ipynb +++ b/C++_from_the_Ground/Chapter_18(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 18" + "name": "", + "signature": "sha256:3dbb4b61b32533eb72607c7c790e9f8f91b9c2e123ddbd5190ffe13a1b2b7647" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,51 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 18: The C++ I/O System

" + "source": [ + "

Chapter 18: The C++ I/O System

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.1, Page Number: 421

" + "source": [ + "

Example 18.1, Page Number: 421

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of overloading << for print in python'''\n\nclass three_d:\n def __init__(self,a,b,c): #3D coordinates\n self.x=a\n self.y=b\n self.z=c\n #Display x,y,z coordinates - three_d inserter.\n def __repr__(self):\n return str(self.x)+\", \"+str(self.y)+\", \"+str(self.z)+\"\\n\"\n\n#Variable declaration\na=three_d(1,2,3)\nb=three_d(3,4,5)\nc=three_d(5,6,7)\n\n#Result\nprint a,b,c", + "input": [ + "\n", + "class three_d:\n", + " def __init__(self,a,b,c): #3D coordinates\n", + " self.x=a\n", + " self.y=b\n", + " self.z=c\n", + " #Display x,y,z coordinates - three_d inserter.\n", + " def __repr__(self):\n", + " return str(self.x)+\", \"+str(self.y)+\", \"+str(self.z)+\"\\n\"\n", + "\n", + "#Variable declaration\n", + "a=three_d(1,2,3)\n", + "b=three_d(3,4,5)\n", + "c=three_d(5,6,7)\n", + "\n", + "#Result\n", + "print a,b,c" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1, 2, 3\n 3, 4, 5\n 5, 6, 7\n\n" + "text": [ + "1, 2, 3\n", + " 3, 4, 5\n", + " 5, 6, 7\n", + "\n" + ] } ], "prompt_number": 1 @@ -35,19 +63,46 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.2, Page Number: 423

" + "source": [ + "

Example 18.2, Page Number: 423

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Using a friend function implement overloading of << in python'''\n\nclass thrnee_d:\n def __init__(self,a,b,c): #3D coordinates\n self.x=a\n self.y=b\n self.z=c\n #Display x,y,z coordinates - three_d inserter.\n __repr__=repr \n \n#Friend function \ndef repr():\n return str(self.x)+\", \"+str(self.y)+\", \"+str(self.z)+\"\\n\"\n\n#Variable declaration\na=three_d(1,2,3)\nb=three_d(3,4,5)\nc=three_d(5,6,7)\n\nprint a,b,c", + "input": [ + "\n", + "class thrnee_d:\n", + " def __init__(self,a,b,c): #3D coordinates\n", + " self.x=a\n", + " self.y=b\n", + " self.z=c\n", + " #Display x,y,z coordinates - three_d inserter.\n", + " __repr__=repr \n", + " \n", + "#Friend function \n", + "def repr():\n", + " return str(self.x)+\", \"+str(self.y)+\", \"+str(self.z)+\"\\n\"\n", + "\n", + "#Variable declaration\n", + "a=three_d(1,2,3)\n", + "b=three_d(3,4,5)\n", + "c=three_d(5,6,7)\n", + "\n", + "print a,b,c" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1, 2, 3\n 3, 4, 5\n 5, 6, 7\n\n" + "text": [ + "1, 2, 3\n", + " 3, 4, 5\n", + " 5, 6, 7\n", + "\n" + ] } ], "prompt_number": 2 @@ -55,19 +110,45 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.3, Page Number: 424

" + "source": [ + "

Example 18.3, Page Number: 424

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of overloading << and >> in python'''\n\nclass three_d:\n def __init__(self,a,b,c): #3D coordinates\n self.x=a\n self.y=b\n self.z=c\n #Display x,y,z coordinates - three_d inserter.\n def __repr__(self):\n return str(self.x)+\", \"+str(self.y)+\", \"+str(self.z)\n\n#Variable declaration\na=three_d(1,2,3)\n\nprint a\n\n#User input\nprint \"Enter X,Y,Z values:\"\na=three_d(4,5,6) \nprint a", + "input": [ + "\n", + "class three_d:\n", + " def __init__(self,a,b,c): #3D coordinates\n", + " self.x=a\n", + " self.y=b\n", + " self.z=c\n", + " #Display x,y,z coordinates - three_d inserter.\n", + " def __repr__(self):\n", + " return str(self.x)+\", \"+str(self.y)+\", \"+str(self.z)\n", + "\n", + "#Variable declaration\n", + "a=three_d(1,2,3)\n", + "\n", + "print a\n", + "\n", + "#User input\n", + "print \"Enter X,Y,Z values:\"\n", + "a=three_d(4,5,6) \n", + "print a" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1, 2, 3\nEnter X,Y,Z values:\n4, 5, 6\n" + "text": [ + "1, 2, 3\n", + "Enter X,Y,Z values:\n", + "4, 5, 6\n" + ] } ], "prompt_number": 3 @@ -75,19 +156,34 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.4, Page Number: 428

" + "source": [ + "

Example 18.4, Page Number: 428

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing some ios flags in python'''\n\n\nprint '{0:+d}'.format(123), #for ios::showpos\nif(123.23>0):\n i='{0:e}'.format(123.23) #for ios::scientific \n i='+'+i\n print i\nelse :\n print '{0:e}'.format(123.23)\n ", + "input": [ + "\n", + "\n", + "print '{0:+d}'.format(123), #for ios::showpos\n", + "if(123.23>0):\n", + " i='{0:e}'.format(123.23) #for ios::scientific \n", + " i='+'+i\n", + " print i\n", + "else :\n", + " print '{0:e}'.format(123.23)\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "+123 +1.232300e+02\n" + "text": [ + "+123 +1.232300e+02\n" + ] } ], "prompt_number": 4 @@ -95,19 +191,55 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.5, Page Number: 430

" + "source": [ + "

Example 18.5, Page Number: 430

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing some ios flags in python'''\n\nimport string\n\nprint '{0:+d}'.format(123), #for ios::showpos\nif(123.23>0):\n i='{0:e}'.format(123.23) #for ios::scientific \n i='+'+i\n print i\nelse :\n print '{0:e}'.format(123.23)\n\n \nprint '{:10.2f}'.format(123.23), #2 digits left of decimal\nif(123.23>0):\n i='{0:.2e}'.format(123.23) #for ios::scientific \n i='+'+i\n print i\nelse :\n print '{0:.2e}'.format(123.23)\n \n \nprint '{:#>10}'.format(str(123)), #for ios::fill\nif(123.23>0): \n i='{0:.2e}'.format(123.23) #for ios::scientific \n i='+'+i\n print i\nelse :\n print '{0:.2e}'.format(123.23)\n\n", + "input": [ + "\n", + "import string\n", + "\n", + "print '{0:+d}'.format(123), #for ios::showpos\n", + "if(123.23>0):\n", + " i='{0:e}'.format(123.23) #for ios::scientific \n", + " i='+'+i\n", + " print i\n", + "else :\n", + " print '{0:e}'.format(123.23)\n", + "\n", + " \n", + "print '{:10.2f}'.format(123.23), #2 digits left of decimal\n", + "if(123.23>0):\n", + " i='{0:.2e}'.format(123.23) #for ios::scientific \n", + " i='+'+i\n", + " print i\n", + "else :\n", + " print '{0:.2e}'.format(123.23)\n", + " \n", + " \n", + "print '{:#>10}'.format(str(123)), #for ios::fill\n", + "if(123.23>0): \n", + " i='{0:.2e}'.format(123.23) #for ios::scientific \n", + " i='+'+i\n", + " print i\n", + "else :\n", + " print '{0:.2e}'.format(123.23)\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "+123 +1.232300e+02\n 123.23 +1.23e+02\n#######123 +1.23e+02\n" + "text": [ + "+123 +1.232300e+02\n", + " 123.23 +1.23e+02\n", + "#######123 +1.23e+02\n" + ] } ], "prompt_number": 1 @@ -115,19 +247,28 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.6, Page Number: 432

" + "source": [ + "

Example 18.6, Page Number: 432

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implement io manipulators in python'''\n\nprint '{0:.0e}'.format(1000.243) #for setprecision\nprint '{:>20}'.format(\"Hello There\") #to set width and right align\n", + "input": [ + "\n", + "print '{0:.0e}'.format(1000.243) #for setprecision\n", + "print '{:>20}'.format(\"Hello There\") #to set width and right align\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1e+03\n Hello There\n" + "text": [ + "1e+03\n", + " Hello There\n" + ] } ], "prompt_number": 5 @@ -135,19 +276,33 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.7, Page Number: 433

" + "source": [ + "

Example 18.7, Page Number: 433

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing some ios flags in python'''\n\nprint '{0:+d}'.format(123), #for ios::showpos\nif(123.23>0):\n i='{0:e}'.format(123.23) #for ios::scientific \n i='+'+i\n print i\nelse :\n print '{0:e}'.format(123.23)\n ", + "input": [ + "\n", + "print '{0:+d}'.format(123), #for ios::showpos\n", + "if(123.23>0):\n", + " i='{0:e}'.format(123.23) #for ios::scientific \n", + " i='+'+i\n", + " print i\n", + "else :\n", + " print '{0:e}'.format(123.23)\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "+123 +1.232300e+02\n" + "text": [ + "+123 +1.232300e+02\n" + ] } ], "prompt_number": 6 @@ -155,19 +310,30 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.8, Page Number: 433

" + "source": [ + "

Example 18.8, Page Number: 433

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Removing leading whitespaces from a string'''\n\n#User input\ns=\" Hello\"\n\n#Result\nprint s.lstrip() #lstrip removes leading spaces", + "input": [ + "\n", + "#User input\n", + "s=\" Hello\"\n", + "\n", + "#Result\n", + "print s.lstrip() #lstrip removes leading spaces" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Hello\n" + "text": [ + "Hello\n" + ] } ], "prompt_number": 7 @@ -175,19 +341,33 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.9, Page Number: 434

" + "source": [ + "

Example 18.9, Page Number: 434

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing some ios flags in python'''\n\ndef setup(s):\n return '{:$<10}'.format(str(s))\n\n\n#Result\nprint 10,setup(10)\n\n\n", + "input": [ + "\n", + "def setup(s):\n", + " return '{:$<10}'.format(str(s))\n", + "\n", + "\n", + "#Result\n", + "print 10,setup(10)\n", + "\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 10$$$$$$$$\n" + "text": [ + "10 10$$$$$$$$\n" + ] } ], "prompt_number": 2 @@ -195,12 +375,26 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.10, Page Number: 435

" + "source": [ + "

Example 18.10, Page Number: 435

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Prompting the user to enter number in hexadecimal form'''\n\ndef prompt():\n print \"Enter number using hex format:\"\n hex=0x46\n return hex\n\n\n#Result\ni=prompt()\nprint i\n\n", + "input": [ + "\n", + "def prompt():\n", + " print \"Enter number using hex format:\"\n", + " hex=0x46\n", + " return hex\n", + "\n", + "\n", + "#Result\n", + "i=prompt()\n", + "print i\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [] @@ -208,12 +402,28 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.11, Page Number: 438

" + "source": [ + "

Example 18.11, Page Number: 438

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to write to a file'''\n\n#Open a file, creating one if it does not already exist\nout=open(\"test\",'w')\n\n#In case file cannot open\nif(not(out)):\n print \"Cannot open file.\"\nelse:\n #Write to file\n out.write(\"10 123.23\\n\")\n out.write(\"This is a short text file.\")\n #Close the file\n out.close()", + "input": [ + "\n", + "#Open a file, creating one if it does not already exist\n", + "out=open(\"test\",'w')\n", + "\n", + "#In case file cannot open\n", + "if(not(out)):\n", + " print \"Cannot open file.\"\n", + "else:\n", + " #Write to file\n", + " out.write(\"10 123.23\\n\")\n", + " out.write(\"This is a short text file.\")\n", + " #Close the file\n", + " out.close()" + ], "language": "python", "metadata": {}, "outputs": [], @@ -222,19 +432,43 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.12, Page Number: 438

" + "source": [ + "

Example 18.12, Page Number: 438

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to read to a file'''\n\n#Open a file, creating one if it does not already exist\nIn=open(\"test\",'r')\n\n#In case file cannot open\nif(not(In)):\n print \"Cannot open file.\"\nelse:\n #Read file\n i=In.read(2)\n ch=In.read(1)\n f=In.read(6)\n str=In.read()\n print i,f,ch\n print str\n #Close the file\n out.close()", + "input": [ + "\n", + "#Open a file, creating one if it does not already exist\n", + "In=open(\"test\",'r')\n", + "\n", + "#In case file cannot open\n", + "if(not(In)):\n", + " print \"Cannot open file.\"\n", + "else:\n", + " #Read file\n", + " i=In.read(2)\n", + " ch=In.read(1)\n", + " f=In.read(6)\n", + " str=In.read()\n", + " print i,f,ch\n", + " print str\n", + " #Close the file\n", + " out.close()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 123.23 \n\nThis is a short text file.\n" + "text": [ + "10 123.23 \n", + "\n", + "This is a short text file.\n" + ] } ], "prompt_number": 9 @@ -242,19 +476,44 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.13, Page Number: 439

" + "source": [ + "

Example 18.13, Page Number: 439

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to read to a file provided on the screen'''\n#Program cannot be provided here, so error is obtained\n\nimport sys\n \nif not(len(sys.argv)==2):\n print \"Usage: PR \\n\"\nelse:\n #Open a file\n In=open(sys.argv[1],'r')\n\n #In case file cannot open\n if(not(In)):\n print \"Cannot open file.\"\n else:\n #Read file\n ch=In.read()\n print ch\n In.close()\n \n", + "input": [ + "\n", + "\n", + "import sys\n", + " \n", + "if not(len(sys.argv)==2):\n", + " print \"Usage: PR \\n\"\n", + "else:\n", + " #Open a file\n", + " In=open(sys.argv[1],'r')\n", + "\n", + " #In case file cannot open\n", + " if(not(In)):\n", + " print \"Cannot open file.\"\n", + " else:\n", + " #Read file\n", + " ch=In.read()\n", + " print ch\n", + " In.close()\n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Usage: PR \n\n" + "text": [ + "Usage: PR \n", + "\n" + ] } ], "prompt_number": 10 @@ -262,12 +521,29 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.14, Page Number: 440

" + "source": [ + "

Example 18.14, Page Number: 440

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to write to a file'''\n\nimport sys\n\np=\"hello there\"\n\nout=open(\"test\",'w')\n\n#In case file cannot open\nif(not(out)):\n print \"Cannot open file.\"\nelse:\n #Write to file\n for i in range(len(p)):\n out.write(p[i])\n", + "input": [ + "\n", + "import sys\n", + "\n", + "p=\"hello there\"\n", + "\n", + "out=open(\"test\",'w')\n", + "\n", + "#In case file cannot open\n", + "if(not(out)):\n", + " print \"Cannot open file.\"\n", + "else:\n", + " #Write to file\n", + " for i in range(len(p)):\n", + " out.write(p[i])\n" + ], "language": "python", "metadata": {}, "outputs": [], @@ -276,19 +552,60 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.15, Page Number: 441

" + "source": [ + "

Example 18.15, Page Number: 441

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to read and write in a file'''\n\nimport sys\n\nn=[1,2,3,4,5]\n\n#Open a file 'test'\nout=open(\"test\",'w')\n\n#In case file cannot open\nif(not(out)):\n print \"Cannot open file.\"\nelse:\n #Write to file\n for i in range(5):\n out.write(chr(n[i]))\n out.close()\n \nfor i in range(5): #clear array\n n[i]=0\n \n#Open the file\nIn=open(\"test\",'r')\n\n#In case file cannot open\nif(not(In)):\n print \"Cannot open file.\"\nelse:\n #Read file\n for i in range(5):\n n[i]=ord(In.read(1))\n\n#Result, shows value from file\nfor i in range(5):\n print n[i],\n \nIn.close()", + "input": [ + "\n", + "import sys\n", + "\n", + "n=[1,2,3,4,5]\n", + "\n", + "#Open a file 'test'\n", + "out=open(\"test\",'w')\n", + "\n", + "#In case file cannot open\n", + "if(not(out)):\n", + " print \"Cannot open file.\"\n", + "else:\n", + " #Write to file\n", + " for i in range(5):\n", + " out.write(chr(n[i]))\n", + " out.close()\n", + " \n", + "for i in range(5): #clear array\n", + " n[i]=0\n", + " \n", + "#Open the file\n", + "In=open(\"test\",'r')\n", + "\n", + "#In case file cannot open\n", + "if(not(In)):\n", + " print \"Cannot open file.\"\n", + "else:\n", + " #Read file\n", + " for i in range(5):\n", + " n[i]=ord(In.read(1))\n", + "\n", + "#Result, shows value from file\n", + "for i in range(5):\n", + " print n[i],\n", + " \n", + "In.close()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1 2 3 4 5\n" + "text": [ + "1 2 3 4 5\n" + ] } ], "prompt_number": 12 @@ -296,19 +613,46 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.16, Page Number: 442

" + "source": [ + "

Example 18.16, Page Number: 442

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Detect end-of-file for a file on the screen'''\n#File cannot be provided here, so program wont work\nimport sys\n \nif not(len(sys.argv)==2):\n print \"Usage: PR \\n\"\nelse:\n #Open a file\n In=open(sys.argv[1],'r')\n\n #In case file cannot open\n if(not(In)):\n print \"Cannot open file.\"\n else:\n #Read file\n while True:\n ch=In.read(1)\n if not ch:\n break\n print ch,\n #Close file\n In.close()\n ", + "input": [ + "import sys\n", + " \n", + "if not(len(sys.argv)==2):\n", + " print \"Usage: PR \\n\"\n", + "else:\n", + " #Open a file\n", + " In=open(sys.argv[1],'r')\n", + "\n", + " #In case file cannot open\n", + " if(not(In)):\n", + " print \"Cannot open file.\"\n", + " else:\n", + " #Read file\n", + " while True:\n", + " ch=In.read(1)\n", + " if not ch:\n", + " break\n", + " print ch,\n", + " #Close file\n", + " In.close()\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Usage: PR \n\n" + "text": [ + "Usage: PR \n", + "\n" + ] } ], "prompt_number": 13 @@ -316,19 +660,74 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.17, Page Number: 443

" + "source": [ + "

Example 18.17, Page Number: 443

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to compare files'''\n\n#Since file names cannot be provided, two \n#files are being created test1 and test2\n\n#creating test1\nout=open(\"test1\",'w')\nout.write(\"Hello\")\nout.close()\n\n#creating test2\nout=open(\"test2\",'w')\nout.write(\"There\")\nout.close()\n\n\n#Open test1\nf1=open(\"test1\",'r')\n#In case file cannot open\nif(not(In)):\n print \"Cannot open file.\"\n\n#Open test2\nf2=open(\"test2\",'r')\n#In case file cannot open\nif(not(In)):\n print \"Cannot open file.\"\n \nprint \"Comparing files...\"\n\nbuf1=f1.read()\nbuf2=f2.read()\nprint buf1,buf2\n\nif len(buf1)==len(buf2):\n print \"Files are of different sizes.\"\n f1.close()\n f2.close()\nelse:\n #compare contents of buffers\n flag=1\n for i in range(len(buf1)):\n if not(buf1[i]==buf2[i]):\n print \"Files differ.\"\n f1.close()\n f2.close()\n flag=0\n break\n if flag==1:\n print \"Files are the same.\"\n \n ", + "input": [ + "\n", + "#creating test1\n", + "out=open(\"test1\",'w')\n", + "out.write(\"Hello\")\n", + "out.close()\n", + "\n", + "#creating test2\n", + "out=open(\"test2\",'w')\n", + "out.write(\"There\")\n", + "out.close()\n", + "\n", + "\n", + "#Open test1\n", + "f1=open(\"test1\",'r')\n", + "#In case file cannot open\n", + "if(not(In)):\n", + " print \"Cannot open file.\"\n", + "\n", + "#Open test2\n", + "f2=open(\"test2\",'r')\n", + "#In case file cannot open\n", + "if(not(In)):\n", + " print \"Cannot open file.\"\n", + " \n", + "print \"Comparing files...\"\n", + "\n", + "buf1=f1.read()\n", + "buf2=f2.read()\n", + "print buf1,buf2\n", + "\n", + "if len(buf1)==len(buf2):\n", + " print \"Files are of different sizes.\"\n", + " f1.close()\n", + " f2.close()\n", + "else:\n", + " #compare contents of buffers\n", + " flag=1\n", + " for i in range(len(buf1)):\n", + " if not(buf1[i]==buf2[i]):\n", + " print \"Files differ.\"\n", + " f1.close()\n", + " f2.close()\n", + " flag=0\n", + " break\n", + " if flag==1:\n", + " print \"Files are the same.\"\n", + " \n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Comparing files...\nHello There\nFiles are of different sizes.\n" + "text": [ + "Comparing files...\n", + "Hello There\n", + "Files are of different sizes.\n" + ] } ], "prompt_number": 14 @@ -336,19 +735,32 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.18, Page Number: 445

" + "source": [ + "

Example 18.18, Page Number: 445

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Read a string and print it'''\n\nprint \"Enter your name:\"\n\n#User imput\nstr=\"hello world\"\n\nprint str", + "input": [ + "\n", + "print \"Enter your name:\"\n", + "\n", + "#User imput\n", + "str=\"hello world\"\n", + "\n", + "print str" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Enter your name:\nhello world\n" + "text": [ + "Enter your name:\n", + "hello world\n" + ] } ], "prompt_number": 15 @@ -356,12 +768,29 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.19, Page Number: 447

" + "source": [ + "

Example 18.19, Page Number: 447

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate random access by writing X at a specified location'''\n\n#Since arguments cannot be provided file test \n#is created and X is written in the 3nd location.\n\n#Open test\nout=open(\"test\",'r+b')\nout.write(\"Hello\")\n\n\n#In case file cannot open\nif(not(out)):\n print \"Cannot open file.\"\nelse:\n out.seek(2,0)\n out.write('X')\n out.close()\n \n", + "input": [ + "\n", + "#Open test\n", + "out=open(\"test\",'r+b')\n", + "out.write(\"Hello\")\n", + "\n", + "\n", + "#In case file cannot open\n", + "if(not(out)):\n", + " print \"Cannot open file.\"\n", + "else:\n", + " out.seek(2,0)\n", + " out.write('X')\n", + " out.close()\n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [], @@ -370,19 +799,39 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.20, Page Number: 447

" + "source": [ + "

Example 18.20, Page Number: 447

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Display a file from a given point'''\n\n#Here, file is displayed from 3nd position\n\n#Open test\nout=open(\"test\",'r+b')\nout.write(\"Hello\")\nout.close()\n\nIn=open(\"test\",'r')\n#In case file cannot open\nif(not(In)):\n print \"Cannot open file.\"\nelse:\n In.seek(2,0)\n ch=In.read()\n print ch\n \n", + "input": [ + "\n", + "#Open test\n", + "out=open(\"test\",'r+b')\n", + "out.write(\"Hello\")\n", + "out.close()\n", + "\n", + "In=open(\"test\",'r')\n", + "#In case file cannot open\n", + "if(not(In)):\n", + " print \"Cannot open file.\"\n", + "else:\n", + " In.seek(2,0)\n", + " ch=In.read()\n", + " print ch\n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "llo\n" + "text": [ + "llo\n" + ] } ], "prompt_number": 3 @@ -390,12 +839,41 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 18.21, Page Number: 450

" + "source": [ + "

Example 18.21, Page Number: 450

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implement use of overloaded inserter to write three_d'''\n\nclass three_d:\n def __init__(self,a,b,c):\n self.__x=a\n self.__y=b\n self.__z=c\n def __repr__(self):\n c=(\"%d\"%self.__x)+\", \"+(\"%d\"%self.__y)+\", \"+(\"%d\"%self.__z)+\"\\n\"\n return c \n\n#Variable declaration\na=three_d(1,2,3)\nb=three_d(3,4,5)\nc=three_d(5,6,7)\n\n#Open threed\nout=open(\"threed\",'w')\n#In case file cannot open\nif(not(out)):\n print \"Cannot open file.\"\nelse:\n out.write(a.__repr__())\n out.write(b.__repr__())\n out.write(c.__repr__())\n\n ", + "input": [ + "\n", + "class three_d:\n", + " def __init__(self,a,b,c):\n", + " self.__x=a\n", + " self.__y=b\n", + " self.__z=c\n", + " def __repr__(self):\n", + " c=(\"%d\"%self.__x)+\", \"+(\"%d\"%self.__y)+\", \"+(\"%d\"%self.__z)+\"\\n\"\n", + " return c \n", + "\n", + "#Variable declaration\n", + "a=three_d(1,2,3)\n", + "b=three_d(3,4,5)\n", + "c=three_d(5,6,7)\n", + "\n", + "#Open threed\n", + "out=open(\"threed\",'w')\n", + "#In case file cannot open\n", + "if(not(out)):\n", + " print \"Cannot open file.\"\n", + "else:\n", + " out.write(a.__repr__())\n", + " out.write(b.__repr__())\n", + " out.write(c.__repr__())\n", + "\n", + " " + ], "language": "python", "metadata": {}, "outputs": [], @@ -404,7 +882,7 @@ { "cell_type": "raw", "metadata": {}, - "source": "" + "source": [] } ], "metadata": {} diff --git a/C++_from_the_Ground/Chapter_19(1).ipynb b/C++_from_the_Ground/Chapter_19(1).ipynb index 318b8aaa..3c9ecd17 100644 --- a/C++_from_the_Ground/Chapter_19(1).ipynb +++ b/C++_from_the_Ground/Chapter_19(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 19" + "name": "", + "signature": "sha256:d2c5aefc81786f6e7a83b5f07eeb250789c73d2ab2ad23662758aa0cdec50617" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,56 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 19: Run-Time Type ID and the Casting Operators

" + "source": [ + "

Chapter 19: Run-Time Type ID and the Casting Operators

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 19.1, Page Number: 453

" + "source": [ + "

Example 19.1, Page Number: 453

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A simple example taht uses typeid'''\n\nclass myclass:\n pass\n\n#Variable declaration\ni=j=0\nf=0.0\nob=myclass()\n\nprint \"The type of i is:\",type(i).__name__\nprint \"The type of f is:\",type(f).__name__\nprint \"The type of ob is:\",ob.__class__.__name__\nprint \"\\n\"\n\nif type(i)==type(j):\n print \"The types of i and j are the same\"\n \nif not(type(i)==type(f)):\n print \"The types of i and f are not the same\"", + "input": [ + "\n", + "class myclass:\n", + " pass\n", + "\n", + "#Variable declaration\n", + "i=j=0\n", + "f=0.0\n", + "ob=myclass()\n", + "\n", + "print \"The type of i is:\",type(i).__name__\n", + "print \"The type of f is:\",type(f).__name__\n", + "print \"The type of ob is:\",ob.__class__.__name__\n", + "print \"\\n\"\n", + "\n", + "if type(i)==type(j):\n", + " print \"The types of i and j are the same\"\n", + " \n", + "if not(type(i)==type(f)):\n", + " print \"The types of i and f are not the same\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "The type of i is: int\nThe type of f is: float\nThe type of ob is: myclass\n\n\nThe types of i and j are the same\nThe types of i and f are not the same\n" + "text": [ + "The type of i is: int\n", + "The type of f is: float\n", + "The type of ob is: myclass\n", + "\n", + "\n", + "The types of i and j are the same\n", + "The types of i and f are not the same\n" + ] } ], "prompt_number": 2 @@ -35,19 +68,52 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 19.2, Page Number: 454

" + "source": [ + "

Example 19.2, Page Number: 454

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An example that uses typeid on a polymorphic class hierarchy'''\n\nclass Base:\n pass\nclass Derived1(Base):\n pass\nclass Derived2(Base):\n pass\n\n#Variable declaration\nbaseob=Base()\np=[Base()]\nob1=Derived1()\nob2=Derived2()\n\n\np[0]=baseob\nprint \"p is pointing to an object of type\",\nprint p[0].__class__.__name__\n\np[0]=ob1\nprint \"p is pointing to an object of type\",\nprint p[0].__class__.__name__\n\np[0]=ob2\nprint \"p is pointing to an object of type\",\nprint p[0].__class__.__name__", + "input": [ + "\n", + "class Base:\n", + " pass\n", + "class Derived1(Base):\n", + " pass\n", + "class Derived2(Base):\n", + " pass\n", + "\n", + "#Variable declaration\n", + "baseob=Base()\n", + "p=[Base()]\n", + "ob1=Derived1()\n", + "ob2=Derived2()\n", + "\n", + "\n", + "p[0]=baseob\n", + "print \"p is pointing to an object of type\",\n", + "print p[0].__class__.__name__\n", + "\n", + "p[0]=ob1\n", + "print \"p is pointing to an object of type\",\n", + "print p[0].__class__.__name__\n", + "\n", + "p[0]=ob2\n", + "print \"p is pointing to an object of type\",\n", + "print p[0].__class__.__name__" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "p is pointing to an object of type Base\np is pointing to an object of type Derived1\np is pointing to an object of type Derived2\n" + "text": [ + "p is pointing to an object of type Base\n", + "p is pointing to an object of type Derived1\n", + "p is pointing to an object of type Derived2\n" + ] } ], "prompt_number": 3 @@ -55,19 +121,48 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 19.3, Page Number: 455

" + "source": [ + "

Example 19.3, Page Number: 455

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An example that uses typeid on a polymorphic class hierarchy'''\n\nclass Base:\n pass\nclass Derived1(Base):\n pass\nclass Derived2(Base):\n pass\n\ndef WhatType(ob):\n print \"ob is referencing an object of type\",\n print ob.__class__.__name__\n \n \n#Variable declaration\nbaseob=Base()\np=[Base()]\nob1=Derived1()\nob2=Derived2()\n\nWhatType(baseob)\nWhatType(ob1)\nWhatType(ob2)", + "input": [ + "\n", + "class Base:\n", + " pass\n", + "class Derived1(Base):\n", + " pass\n", + "class Derived2(Base):\n", + " pass\n", + "\n", + "def WhatType(ob):\n", + " print \"ob is referencing an object of type\",\n", + " print ob.__class__.__name__\n", + " \n", + " \n", + "#Variable declaration\n", + "baseob=Base()\n", + "p=[Base()]\n", + "ob1=Derived1()\n", + "ob2=Derived2()\n", + "\n", + "WhatType(baseob)\n", + "WhatType(ob1)\n", + "WhatType(ob2)" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "ob is referencing an object of type Base\nob is referencing an object of type Derived1\nob is referencing an object of type Derived2\n" + "text": [ + "ob is referencing an object of type Base\n", + "ob is referencing an object of type Derived1\n", + "ob is referencing an object of type Derived2\n" + ] } ], "prompt_number": 4 @@ -75,19 +170,94 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 19.4, Page Number: 456

" + "source": [ + "

Example 19.4, Page Number: 456

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate run-time type id'''\n\nimport random\n\nclass figure:\n def __init__(self,i,j):\n self._x=i\n self._y=j\n \nclass triangle(figure):\n def __init__(self,i,j):\n figure.__init__(self,i,j)\n def area(self):\n return self._x*0.5*self._y\n \nclass rectangle(figure):\n def __init__(self,i,j):\n figure.__init__(self,i,j)\n def area(self):\n return self._x*self._y\n \nclass circle(figure):\n def __init__(self,i,j=0):\n figure.__init__(self,i,j)\n def area(self):\n return self._x*self._x*3.14\n \ndef factory():\n i=random.randint(0,2)\n if i==0:\n return circle(10.0)\n elif i==1:\n return triangle(10.1,5.3)\n elif i==2:\n return rectangle(4.3,5.7)\n \n\nt=c=r=0 \np=[None]\n\n#generate and count objects\nfor i in range(10):\n p[0]=factory() #generate an object\n print \"Object is \",p[0].__class__.__name__,\". \",\n #count it\n if p[0].__class__.__name__==triangle.__name__:\n t+=1\n if p[0].__class__.__name__==rectangle.__name__:\n r+=1\n if p[0].__class__.__name__==circle.__name__:\n c+=1\n #display its area\n print \"Area is\",p[0].area()\n\nprint \"Objects generated:\"\nprint \"Triangles:\",t\nprint \"Rectangles:\",r\nprint \"Circles:\",c", + "input": [ + "\n", + "import random\n", + "\n", + "class figure:\n", + " def __init__(self,i,j):\n", + " self._x=i\n", + " self._y=j\n", + " \n", + "class triangle(figure):\n", + " def __init__(self,i,j):\n", + " figure.__init__(self,i,j)\n", + " def area(self):\n", + " return self._x*0.5*self._y\n", + " \n", + "class rectangle(figure):\n", + " def __init__(self,i,j):\n", + " figure.__init__(self,i,j)\n", + " def area(self):\n", + " return self._x*self._y\n", + " \n", + "class circle(figure):\n", + " def __init__(self,i,j=0):\n", + " figure.__init__(self,i,j)\n", + " def area(self):\n", + " return self._x*self._x*3.14\n", + " \n", + "def factory():\n", + " i=random.randint(0,2)\n", + " if i==0:\n", + " return circle(10.0)\n", + " elif i==1:\n", + " return triangle(10.1,5.3)\n", + " elif i==2:\n", + " return rectangle(4.3,5.7)\n", + " \n", + "\n", + "t=c=r=0 \n", + "p=[None]\n", + "\n", + "#generate and count objects\n", + "for i in range(10):\n", + " p[0]=factory() #generate an object\n", + " print \"Object is \",p[0].__class__.__name__,\". \",\n", + " #count it\n", + " if p[0].__class__.__name__==triangle.__name__:\n", + " t+=1\n", + " if p[0].__class__.__name__==rectangle.__name__:\n", + " r+=1\n", + " if p[0].__class__.__name__==circle.__name__:\n", + " c+=1\n", + " #display its area\n", + " print \"Area is\",p[0].area()\n", + "\n", + "print \"Objects generated:\"\n", + "print \"Triangles:\",t\n", + "print \"Rectangles:\",r\n", + "print \"Circles:\",c" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Object is circle . Area is 314.0\nObject is rectangle . Area is 24.51\nObject is rectangle . Area is 24.51\nObject is circle . Area is 314.0\nObject is rectangle . Area is 24.51\nObject is circle . Area is 314.0\nObject is rectangle . Area is 24.51\nObject is triangle . Area is 26.765\nObject is rectangle . Area is 24.51\nObject is circle . Area is 314.0\nObjects generated:\nTriangles: 1\nRectangles: 5\nCircles: 4\n" + "text": [ + "Object is circle . Area is 314.0\n", + "Object is rectangle . Area is 24.51\n", + "Object is rectangle . Area is 24.51\n", + "Object is circle . Area is 314.0\n", + "Object is rectangle . Area is 24.51\n", + "Object is circle . Area is 314.0\n", + "Object is rectangle . Area is 24.51\n", + "Object is triangle . Area is 26.765\n", + "Object is rectangle . Area is 24.51\n", + "Object is circle . Area is 314.0\n", + "Objects generated:\n", + "Triangles: 1\n", + "Rectangles: 5\n", + "Circles: 4\n" + ] } ], "prompt_number": 5 @@ -95,19 +265,56 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 19.5, Page Number: 456

" + "source": [ + "

Example 19.5, Page Number: 456

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Using typeid with templates'''\n#Since python does not have templates\n#it will give a different output.\n\n#Template class\nclass myclass:\n def __init__(self,i):\n self.__a=i\n \no1=myclass(10)\no2=myclass(9)\no3=myclass(7.2)\n\nprint \"Type of o1 is\",o1.__class__.__name__\n\nprint \"Type of o2 is\",o2.__class__.__name__\n\nprint \"Type of o3 is\",o3.__class__.__name__\n\nprint\n\nif o1.__class__.__name__==o2.__class__.__name__:\n print \"o1 and o2 are the same type\"\n \nif o1.__class__.__name__==o3.__class__.__name__:\n print \"Error\"\nelse:\n print \"o1 and o3 are different types\"\n\n#This prints error because python doesnt use templates.", + "input": [ + "\n", + "#Template class\n", + "class myclass:\n", + " def __init__(self,i):\n", + " self.__a=i\n", + " \n", + "o1=myclass(10)\n", + "o2=myclass(9)\n", + "o3=myclass(7.2)\n", + "\n", + "print \"Type of o1 is\",o1.__class__.__name__\n", + "\n", + "print \"Type of o2 is\",o2.__class__.__name__\n", + "\n", + "print \"Type of o3 is\",o3.__class__.__name__\n", + "\n", + "print\n", + "\n", + "if o1.__class__.__name__==o2.__class__.__name__:\n", + " print \"o1 and o2 are the same type\"\n", + " \n", + "if o1.__class__.__name__==o3.__class__.__name__:\n", + " print \"Error\"\n", + "else:\n", + " print \"o1 and o3 are different types\"\n", + "\n", + "#This prints error because python doesnt use templates." + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Type of o1 is myclass\nType of o2 is myclass\nType of o3 is myclass\n\no1 and o2 are the same type\nError\n" + "text": [ + "Type of o1 is myclass\n", + "Type of o2 is myclass\n", + "Type of o3 is myclass\n", + "\n", + "o1 and o2 are the same type\n", + "Error\n" + ] } ], "prompt_number": 6 @@ -115,19 +322,94 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 19.6, Page Number: 460

" + "source": [ + "

Example 19.6, Page Number: 460

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Template version of figure hierarchy'''\n#Python classes are effectively template classes.\n\nimport random\n\nclass figure:\n def __init__(self,i,j):\n self._x=i\n self._y=j\n \nclass triangle(figure):\n def __init__(self,i,j):\n figure.__init__(self,i,j)\n def area(self):\n return self._x*0.5*self._y\n \nclass rectangle(figure):\n def __init__(self,i,j):\n figure.__init__(self,i,j)\n def area(self):\n return self._x*self._y\n \nclass circle(figure):\n def __init__(self,i,j=0):\n figure.__init__(self,i,j)\n def area(self):\n return self._x*self._x*3.14\n \ndef factory():\n i=random.randint(0,2)\n if i==0:\n return circle(10.0)\n elif i==1:\n return triangle(10.1,5.3)\n elif i==2:\n return rectangle(4.3,5.7)\n \n\nt=c=r=0 \np=[None]\n\n#generate and count objects\nfor i in range(10):\n p[0]=factory() #generate an object\n print \"Object is \",p[0].__class__.__name__,\". \",\n #count it\n if p[0].__class__.__name__==triangle.__name__:\n t+=1\n if p[0].__class__.__name__==rectangle.__name__:\n r+=1\n if p[0].__class__.__name__==circle.__name__:\n c+=1\n #display its area\n print \"Area is\",p[0].area()\n\nprint \"Objects generated:\"\nprint \"Triangles:\",t\nprint \"Rectangles:\",r\nprint \"Circles:\",c", + "input": [ + "\n", + "import random\n", + "\n", + "class figure:\n", + " def __init__(self,i,j):\n", + " self._x=i\n", + " self._y=j\n", + " \n", + "class triangle(figure):\n", + " def __init__(self,i,j):\n", + " figure.__init__(self,i,j)\n", + " def area(self):\n", + " return self._x*0.5*self._y\n", + " \n", + "class rectangle(figure):\n", + " def __init__(self,i,j):\n", + " figure.__init__(self,i,j)\n", + " def area(self):\n", + " return self._x*self._y\n", + " \n", + "class circle(figure):\n", + " def __init__(self,i,j=0):\n", + " figure.__init__(self,i,j)\n", + " def area(self):\n", + " return self._x*self._x*3.14\n", + " \n", + "def factory():\n", + " i=random.randint(0,2)\n", + " if i==0:\n", + " return circle(10.0)\n", + " elif i==1:\n", + " return triangle(10.1,5.3)\n", + " elif i==2:\n", + " return rectangle(4.3,5.7)\n", + " \n", + "\n", + "t=c=r=0 \n", + "p=[None]\n", + "\n", + "#generate and count objects\n", + "for i in range(10):\n", + " p[0]=factory() #generate an object\n", + " print \"Object is \",p[0].__class__.__name__,\". \",\n", + " #count it\n", + " if p[0].__class__.__name__==triangle.__name__:\n", + " t+=1\n", + " if p[0].__class__.__name__==rectangle.__name__:\n", + " r+=1\n", + " if p[0].__class__.__name__==circle.__name__:\n", + " c+=1\n", + " #display its area\n", + " print \"Area is\",p[0].area()\n", + "\n", + "print \"Objects generated:\"\n", + "print \"Triangles:\",t\n", + "print \"Rectangles:\",r\n", + "print \"Circles:\",c" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Object is triangle . Area is 26.765\nObject is circle . Area is 314.0\nObject is circle . Area is 314.0\nObject is rectangle . Area is 24.51\nObject is rectangle . Area is 24.51\nObject is rectangle . Area is 24.51\nObject is circle . Area is 314.0\nObject is circle . Area is 314.0\nObject is rectangle . Area is 24.51\nObject is triangle . Area is 26.765\nObjects generated:\nTriangles: 2\nRectangles: 4\nCircles: 4\n" + "text": [ + "Object is triangle . Area is 26.765\n", + "Object is circle . Area is 314.0\n", + "Object is circle . Area is 314.0\n", + "Object is rectangle . Area is 24.51\n", + "Object is rectangle . Area is 24.51\n", + "Object is rectangle . Area is 24.51\n", + "Object is circle . Area is 314.0\n", + "Object is circle . Area is 314.0\n", + "Object is rectangle . Area is 24.51\n", + "Object is triangle . Area is 26.765\n", + "Objects generated:\n", + "Triangles: 2\n", + "Rectangles: 4\n", + "Circles: 4\n" + ] } ], "prompt_number": 7 @@ -135,19 +417,119 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 19.7, Page Number: 463

" + "source": [ + "

Example 19.7, Page Number: 463

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implement dynamic casting'''\n#Dynamic casting is not needed in python \n#Also, the output will be different in python since \n#here since pointers are implemented using lists,\n\nclass Base:\n def f(self):\n print \"Inside Base\"\n \nclass Derived(Base):\n def f(self):\n print \"Inside Derived\"\n \nbp=[Base()] #pointer to base\nb_ob=Base() \ndp=[Derived()] #pointer to derived\nd_ob=Derived()\n\ndp[0]=d_ob\nif dp[0]:\n print \"Cast from Derived * to Derived * OK.\"\n dp[0].f()\nelse:\n print \"Error\"\nprint\n\nbp[0]=d_ob\nif bp[0]:\n print \"Cast from Derived * to Base * OK.\"\n bp[0].f()\nelse:\n print \"Error\"\nprint\n\nbp[0]=b_ob\nif bp[0]:\n print \"Cast from Base * to Base * OK.\"\n bp[0].f()\nelse:\n print \"Error\"\nprint\n\ndp[0]=b_ob\nif dp[0]:\n print \"Error\"\nelse:\n print \"Cast from Base * to Derived * not OK.\"\nprint\n\nbp[0]=d_ob #bp points to Derived object\ndp[0]=bp[0]\nif dp[0]:\n print \"Cast bp to a Derived * OK.\"\n print \"because bp is really pointing\\n\",\n print \"to a Derived object.\"\n dp[0].f()\nelse:\n print \"Error\"\nprint\n\nbp[0]=b_ob #bp points to Base object\ndp[0]=bp[0]\nif dp[0]:\n print \"Error\"\nelse:\n print \"Now casting bp to a Derived *\\n\",\n print \"is not OK because bp is really\\n\",\n print \" pointing to a Base object.\"\nprint\n\ndp[0]=d_ob #dp points to Derived object\nbp[0]=dp[0]\nif bp[0]:\n print \"Casting dp to a Base * is OK.\"\n bp[0].f()\nelse:\n print \"Error\"\nprint\n", + "input": [ + "\n", + "\n", + "class Base:\n", + " def f(self):\n", + " print \"Inside Base\"\n", + " \n", + "class Derived(Base):\n", + " def f(self):\n", + " print \"Inside Derived\"\n", + " \n", + "bp=[Base()] #pointer to base\n", + "b_ob=Base() \n", + "dp=[Derived()] #pointer to derived\n", + "d_ob=Derived()\n", + "\n", + "dp[0]=d_ob\n", + "if dp[0]:\n", + " print \"Cast from Derived * to Derived * OK.\"\n", + " dp[0].f()\n", + "else:\n", + " print \"Error\"\n", + "print\n", + "\n", + "bp[0]=d_ob\n", + "if bp[0]:\n", + " print \"Cast from Derived * to Base * OK.\"\n", + " bp[0].f()\n", + "else:\n", + " print \"Error\"\n", + "print\n", + "\n", + "bp[0]=b_ob\n", + "if bp[0]:\n", + " print \"Cast from Base * to Base * OK.\"\n", + " bp[0].f()\n", + "else:\n", + " print \"Error\"\n", + "print\n", + "\n", + "dp[0]=b_ob\n", + "if dp[0]:\n", + " print \"Error\"\n", + "else:\n", + " print \"Cast from Base * to Derived * not OK.\"\n", + "print\n", + "\n", + "bp[0]=d_ob #bp points to Derived object\n", + "dp[0]=bp[0]\n", + "if dp[0]:\n", + " print \"Cast bp to a Derived * OK.\"\n", + " print \"because bp is really pointing\\n\",\n", + " print \"to a Derived object.\"\n", + " dp[0].f()\n", + "else:\n", + " print \"Error\"\n", + "print\n", + "\n", + "bp[0]=b_ob #bp points to Base object\n", + "dp[0]=bp[0]\n", + "if dp[0]:\n", + " print \"Error\"\n", + "else:\n", + " print \"Now casting bp to a Derived *\\n\",\n", + " print \"is not OK because bp is really\\n\",\n", + " print \" pointing to a Base object.\"\n", + "print\n", + "\n", + "dp[0]=d_ob #dp points to Derived object\n", + "bp[0]=dp[0]\n", + "if bp[0]:\n", + " print \"Casting dp to a Base * is OK.\"\n", + " bp[0].f()\n", + "else:\n", + " print \"Error\"\n", + "print\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Cast from Derived * to Derived * OK.\nInside Derived\n\nCast from Derived * to Base * OK.\nInside Derived\n\nCast from Base * to Base * OK.\nInside Base\n\nError\n\nCast bp to a Derived * OK.\nbecause bp is really pointing\nto a Derived object.\nInside Derived\n\nError\n\nCasting dp to a Base * is OK.\nInside Derived\n\n" + "text": [ + "Cast from Derived * to Derived * OK.\n", + "Inside Derived\n", + "\n", + "Cast from Derived * to Base * OK.\n", + "Inside Derived\n", + "\n", + "Cast from Base * to Base * OK.\n", + "Inside Base\n", + "\n", + "Error\n", + "\n", + "Cast bp to a Derived * OK.\n", + "because bp is really pointing\n", + "to a Derived object.\n", + "Inside Derived\n", + "\n", + "Error\n", + "\n", + "Casting dp to a Base * is OK.\n", + "Inside Derived\n", + "\n" + ] } ], "prompt_number": 8 @@ -155,19 +537,74 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 19.8, Page Number: 465

" + "source": [ + "

Example 19.8, Page Number: 465

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implement dynamic casting'''\n#Dynamic casting is not needed in python \n#Also, the output will be different in python since \n#here since pointers are implemented using lists,\n\nclass Base:\n def f(self):\n pass\n \nclass Derived(Base):\n def derivedOnly(self):\n print \"Is a Derived Object\"\n \nbp=[Base()] #pointer to base\nb_ob=Base() \ndp=[Derived()] #pointer to derived\nd_ob=Derived()\n\n#Use typeid\n\nbp[0]=b_ob\nif bp[0].__class__.__name__==Derived.__name__:\n dp[0]=bp[0]\n dp[0].derivedOnly()\nelse:\n print \"Cast from Base to Derived failed.\"\n \nbp[0]=d_ob\nif bp[0].__class__.__name__==Derived.__name__:\n dp[0]=bp[0]\n dp[0].derivedOnly()\nelse:\n print \"Error, cast should work!\"\n \n#Use dynamic_cast\n\nbp[0]=b_ob\ndp[0]=bp[0]\nif dp[0].__class__.__name__==Derived.__name__:\n dp[0].derivedOnly()\nelse:\n print \"Cast from Base to Derived failed.\"\n \nbp[0]=d_ob\ndp[0]=bp[0]\nif dp:\n dp[0].derivedOnly()\nelse:\n print \"Error, cast should work!\"\n ", + "input": [ + "\n", + "\n", + "class Base:\n", + " def f(self):\n", + " pass\n", + " \n", + "class Derived(Base):\n", + " def derivedOnly(self):\n", + " print \"Is a Derived Object\"\n", + " \n", + "bp=[Base()] #pointer to base\n", + "b_ob=Base() \n", + "dp=[Derived()] #pointer to derived\n", + "d_ob=Derived()\n", + "\n", + "#Use typeid\n", + "\n", + "bp[0]=b_ob\n", + "if bp[0].__class__.__name__==Derived.__name__:\n", + " dp[0]=bp[0]\n", + " dp[0].derivedOnly()\n", + "else:\n", + " print \"Cast from Base to Derived failed.\"\n", + " \n", + "bp[0]=d_ob\n", + "if bp[0].__class__.__name__==Derived.__name__:\n", + " dp[0]=bp[0]\n", + " dp[0].derivedOnly()\n", + "else:\n", + " print \"Error, cast should work!\"\n", + " \n", + "#Use dynamic_cast\n", + "\n", + "bp[0]=b_ob\n", + "dp[0]=bp[0]\n", + "if dp[0].__class__.__name__==Derived.__name__:\n", + " dp[0].derivedOnly()\n", + "else:\n", + " print \"Cast from Base to Derived failed.\"\n", + " \n", + "bp[0]=d_ob\n", + "dp[0]=bp[0]\n", + "if dp:\n", + " dp[0].derivedOnly()\n", + "else:\n", + " print \"Error, cast should work!\"\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Cast from Base to Derived failed.\nIs a Derived Object\nCast from Base to Derived failed.\nIs a Derived Object\n" + "text": [ + "Cast from Base to Derived failed.\n", + "Is a Derived Object\n", + "Cast from Base to Derived failed.\n", + "Is a Derived Object\n" + ] } ], "prompt_number": 9 @@ -175,19 +612,37 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 19.9, Page Number: 467

" + "source": [ + "

Example 19.9, Page Number: 467

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of const_cast'''\n#Since python does not have constants, const_cast is not needed\n\ndef f(p):\n v=p\n v[0]=100\n \n#Variable declaration\nx=[]\n\nx.append(99)\nprint \"x before call:\",x[0]\nf(x)\nprint \"x after call:\",x[0]\n", + "input": [ + "\n", + "def f(p):\n", + " v=p\n", + " v[0]=100\n", + " \n", + "#Variable declaration\n", + "x=[]\n", + "\n", + "x.append(99)\n", + "print \"x before call:\",x[0]\n", + "f(x)\n", + "print \"x after call:\",x[0]\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "x before call: 99\nx after call: 100\n" + "text": [ + "x before call: 99\n", + "x after call: 100\n" + ] } ], "prompt_number": 10 @@ -195,19 +650,30 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 19.10, Page Number: 468

" + "source": [ + "

Example 19.10, Page Number: 468

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implement static_cast'''\n#Since python does not have static variables,\n#static_cast is not needed\n\nf=199.22\n\ni=f\nprint i\n", + "input": [ + "\n", + "\n", + "f=199.22\n", + "\n", + "i=f\n", + "print i\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "199.22\n" + "text": [ + "199.22\n" + ] } ], "prompt_number": 11 @@ -215,19 +681,32 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 19.11, Page Number: 469

" + "source": [ + "

Example 19.11, Page Number: 469

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An example of reinterpret_cast'''\n#python does not have specific data type variables \n#hence reinterpretation is not required\n\n#Variable Declaration\ni=0 #int\np=\"This is a string\"\n\ni=p #cast pointer to integer \n\n#Result\nprint i\n", + "input": [ + "\n", + "i=0 #int\n", + "p=\"This is a string\"\n", + "\n", + "i=p #cast pointer to integer \n", + "\n", + "#Result\n", + "print i\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "This is a string\n" + "text": [ + "This is a string\n" + ] } ], "prompt_number": 12 @@ -235,7 +714,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_2(1).ipynb b/C++_from_the_Ground/Chapter_2(1).ipynb index ca5a3177..603f2bab 100644 --- a/C++_from_the_Ground/Chapter_2(1).ipynb +++ b/C++_from_the_Ground/Chapter_2(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 2" + "name": "", + "signature": "sha256:2822ffa73df44943f6be3bedb4cf89d60d9228e7b719790e40dca7bc4236f0b9" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,34 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 2: An Overview of C++

" + "source": [ + "

Chapter 2: An Overview of C++

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 2.1, Page Number: 12

" + "source": [ + "

Example 2.1, Page Number: 12

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program 1:A first Python(C++) program'''\n\n#Result\nprint \"This is my first C++ program.\"", + "input": [ + "\n", + "#Result\n", + "print \"This is my first C++ program.\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "This is my first C++ program.\n" + "text": [ + "This is my first C++ program.\n" + ] } ], "prompt_number": 1 @@ -35,19 +46,34 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 2.2, Page Number: 17

" + "source": [ + "

Example 2.2, Page Number: 17

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program 2: Using a variable'''\n\n#Variable Declaration\nx=None \n\nx=1023 #this assigns 1023 to x\n\n#Result\nprint \"This program prints the value of x: \",x #prints x,i.e, 1023\n", + "input": [ + "'\n", + "\n", + "\n", + "#Variable Declaration\n", + "x=None \n", + "\n", + "x=1023 #this assigns 1023 to x\n", + "\n", + "#Result\n", + "print \"This program prints the value of x: \",x #prints x,i.e, 1023\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "This program prints the value of x: 1023\n" + "text": [ + "This program prints the value of x: 1023\n" + ] } ], "prompt_number": 2 @@ -55,19 +81,34 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 2.3, Page Number: 18

" + "source": [ + "

Example 2.3, Page Number: 18

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''This program converts gallons to liters'''\n\n#Variable declaration\ngallons=10 #User input\nliters=None\n\nliters=gallons*4 #convert to liters\n\n#Result\nprint \"Liters: \",liters", + "input": [ + "\n", + "\n", + "#Variable declaration\n", + "gallons=10 #User input\n", + "liters=None\n", + "\n", + "liters=gallons*4 #convert to liters\n", + "\n", + "#Result\n", + "print \"Liters: \",liters" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Liters: 40\n" + "text": [ + "Liters: 40\n" + ] } ], "prompt_number": 3 @@ -75,19 +116,35 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 2.4, Page Number: 20

" + "source": [ + "

Example 2.4, Page Number: 20

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''This program converts gallons to liters using floating point numbers'''\n\n#Variable declaration\ngallons=10.20 #User input\nliters=None\n\nliters=gallons*3.7854 #convert to liters\n\n#Result\nprint \"Liters: \",liters", + "input": [ + "\n", + "\n", + "\n", + "#Variable declaration\n", + "gallons=10.20 #User input\n", + "liters=None\n", + "\n", + "liters=gallons*3.7854 #convert to liters\n", + "\n", + "#Result\n", + "print \"Liters: \",liters" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Liters: 38.61108\n" + "text": [ + "Liters: 38.61108\n" + ] } ], "prompt_number": 4 @@ -95,19 +152,36 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 2.5, Page Number: 21

" + "source": [ + "

Example 2.5, Page Number: 21

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''This program uses a function'''\n\n#myfunc's definition\ndef myfunc():\n print \"Inside myfunc() \"\n \nprint \"In main()\"\nmyfunc() #call myfunc()\nprint \"Back in main()\"", + "input": [ + "\n", + "\n", + "\n", + "#myfunc's definition\n", + "def myfunc():\n", + " print \"Inside myfunc() \"\n", + " \n", + "print \"In main()\"\n", + "myfunc() #call myfunc()\n", + "print \"Back in main()\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "In main()\nInside myfunc() \nBack in main()\n" + "text": [ + "In main()\n", + "Inside myfunc() \n", + "Back in main()\n" + ] } ], "prompt_number": 5 @@ -115,19 +189,29 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 2.6, Page Number: 22

" + "source": [ + "

Example 2.6, Page Number: 22

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Using the abs() function'''\n\n#Result\nprint abs(-10)", + "input": [ + "\n", + "\n", + "\n", + "#Result\n", + "print abs(-10)" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10\n" + "text": [ + "10\n" + ] } ], "prompt_number": 6 @@ -135,19 +219,34 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 2.7, Page Number: 23

" + "source": [ + "

Example 2.7, Page Number: 23

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A simple program that demonstrates mul()'''\n\n#mul's definition\ndef mul(x,y):\n print x*y,\n\n#calling mul\nmul(10,20)\nmul(5,6)\nmul(8,9)", + "input": [ + "\n", + "\n", + "#mul's definition\n", + "def mul(x,y):\n", + " print x*y,\n", + "\n", + "#calling mul\n", + "mul(10,20)\n", + "mul(5,6)\n", + "mul(8,9)" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "200 30 72\n" + "text": [ + "200 30 72\n" + ] } ], "prompt_number": 1 @@ -155,19 +254,35 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 2.8, Page Number: 24

" + "source": [ + "

Example 2.8, Page Number: 24

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Returning a value'''\n\n#mul()'s definition; this function returns a value\ndef mul(x,y):\n return x*y #return product of x and y\n\n#Variable declaration\nanswer=mul(10,11) #assign return values\n\n#Result\nprint \"The answer is: \",answer\n", + "input": [ + "\n", + "\n", + "#mul()'s definition; this function returns a value\n", + "def mul(x,y):\n", + " return x*y #return product of x and y\n", + "\n", + "#Variable declaration\n", + "answer=mul(10,11) #assign return values\n", + "\n", + "#Result\n", + "print \"The answer is: \",answer\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "The answer is: 110\n" + "text": [ + "The answer is: 110\n" + ] } ], "prompt_number": 8 @@ -175,19 +290,31 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 2.9, Page Number: 26

" + "source": [ + "

Example 2.9, Page Number: 26

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''This demonstrates how to got to the next line'''\n\nprint \"one\"\nprint \"two\" #prints in different line\nprint \"three\",\"four\" #prints all in same line", + "input": [ + "\n", + "\n", + "print \"one\"\n", + "print \"two\" #prints in different line\n", + "print \"three\",\"four\" #prints all in same line" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "one\ntwo\nthree four\n" + "text": [ + "one\n", + "two\n", + "three four\n" + ] } ], "prompt_number": 9 @@ -195,19 +322,33 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 2.10, Page Number: 27

" + "source": [ + "

Example 2.10, Page Number: 27

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''This program illustrates the if statement'''\n\n#Variable declaration\na=10 #user input for two numbers\nb=20\n\n#Result\nif aExample 2.11, Page Number: 28

" + "source": [ + "

Example 2.11, Page Number: 28

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A program that illustrates the for loop'''\n\nfor count in range(1,100+1):\n print count,", + "input": [ + "\n", + "\n", + "for count in range(1,100+1):\n", + " print count," + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100\n" + "text": [ + "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100\n" + ] } ], "prompt_number": 3 @@ -235,19 +385,34 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 2.12, Page Number: 30

" + "source": [ + "

Example 2.12, Page Number: 30

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''This program demonstrates a block of code'''\n\n#Variable declaration\na=10 #User input for two numbers\nb=20\n\n#Result\nif aChapter 21: Introducing the Standard Template Library

" + "source": [ + "

Chapter 21: Introducing the Standard Template Library

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.1, Page Number:507

" + "source": [ + "

Example 21.1, Page Number:507

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An implementation of vector in python'''\n\n#Variable declaratio\nv=[] #Create a zero length vector\n\n#display original size of v\nprint \"Size =\",len(v)\n\n#put values onto end of vector\n#vector will grow as needed\n\nfor i in range(10):\n v.append(i)\n \n#display current size of v\nprint \"Current contents: \"\nprint \"Size now =\",len(v)\n\n#display contents of vector\nfor i in range(len(v)):\n print v[i],\n \nprint\n \n#put more values onto end of vector\n#again, vector will grow as needed.\nfor i in range(10):\n v.append(i+10)\n#display current size of v\nprint \"Size now =\",len(v)\n\n#display contents of vector\nprint \"Current contents:\"\nfor i in range(len(v)):\n print v[i],\nprint\n \n#change contents of vector\nfor i in range(len(v)):\n v[i]=v[i]+v[i]\n \n#display contents of vector\nprint \"Contents doubled:\"\nfor i in range(len(v)):\n print v[i],", + "input": [ + "\n", + "\n", + "#Variable declaratio\n", + "v=[] #Create a zero length vector\n", + "\n", + "#display original size of v\n", + "print \"Size =\",len(v)\n", + "\n", + "#put values onto end of vector\n", + "#vector will grow as needed\n", + "\n", + "for i in range(10):\n", + " v.append(i)\n", + " \n", + "#display current size of v\n", + "print \"Current contents: \"\n", + "print \"Size now =\",len(v)\n", + "\n", + "#display contents of vector\n", + "for i in range(len(v)):\n", + " print v[i],\n", + " \n", + "print\n", + " \n", + "#put more values onto end of vector\n", + "#again, vector will grow as needed.\n", + "for i in range(10):\n", + " v.append(i+10)\n", + "#display current size of v\n", + "print \"Size now =\",len(v)\n", + "\n", + "#display contents of vector\n", + "print \"Current contents:\"\n", + "for i in range(len(v)):\n", + " print v[i],\n", + "print\n", + " \n", + "#change contents of vector\n", + "for i in range(len(v)):\n", + " v[i]=v[i]+v[i]\n", + " \n", + "#display contents of vector\n", + "print \"Contents doubled:\"\n", + "for i in range(len(v)):\n", + " print v[i]," + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Size = 0\nCurrent contents: \nSize now = 10\n0 1 2 3 4 5 6 7 8 9\nSize now = 20\nCurrent contents:\n0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19\nContents doubled:\n0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38\n" + "text": [ + "Size = 0\n", + "Current contents: \n", + "Size now = 10\n", + "0 1 2 3 4 5 6 7 8 9\n", + "Size now = 20\n", + "Current contents:\n", + "0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19\n", + "Contents doubled:\n", + "0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38\n" + ] } ], "prompt_number": 1 @@ -35,19 +96,42 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.2, Page Number:508

" + "source": [ + "

Example 21.2, Page Number:508

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Access vector usng an terator'''\n\n#Variable declaration\nv=[] #Create a zero length vector\n\n#put values onto end of vector\nfor i in range(10):\n v.append(chr(ord('A')+i))\n \n#can access vector contents using subscripts\nfor i in range(len(v)):\n print v[i], \nprint\n \n#access via iterator\nfor p in v:\n print p,\n ", + "input": [ + "\n", + "#Variable declaration\n", + "v=[] #Create a zero length vector\n", + "\n", + "#put values onto end of vector\n", + "for i in range(10):\n", + " v.append(chr(ord('A')+i))\n", + " \n", + "#can access vector contents using subscripts\n", + "for i in range(len(v)):\n", + " print v[i], \n", + "print\n", + " \n", + "#access via iterator\n", + "for p in v:\n", + " print p,\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "A B C D E F G H I J\nA B C D E F G H I J\n" + "text": [ + "A B C D E F G H I J\n", + "A B C D E F G H I J\n" + ] } ], "prompt_number": 2 @@ -55,19 +139,71 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.3, Page Number:509

" + "source": [ + "

Example 21.3, Page Number:509

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate insert and erase'''\n\n#Variable declaration\nv=[] #Create a zero length vector\n\n#put values onto end of vector\nfor i in range(10):\n v.append(chr(ord('A')+i))\n \n#Display original contents of vector\nprint \"Size =\",len(v)\nprint \"Original contents:\"\nfor i in range(len(v)):\n print v[i], \nprint \"\\n\"\n \np=2 #point to 3rd element\nfor i in range(10):\n v.insert(p+i,'X')\n \n#display contents after insertion\nprint \"Size after insert =\",len(v)\nprint \"Contents after insert:\"\nfor i in range(len(v)):\n print v[i],\nprint \"\\n\"\n\n#remove those elements\np=2 #point to 3rd element\nfor i in range(10):\n v.pop(p)\n \n#display contents after insertion\nprint \"Size after erase =\",len(v)\nprint \"Contents after insert:\"\nfor i in range(len(v)):\n print v[i],\n", + "input": [ + "\n", + "\n", + "#Variable declaration\n", + "v=[] #Create a zero length vector\n", + "\n", + "#put values onto end of vector\n", + "for i in range(10):\n", + " v.append(chr(ord('A')+i))\n", + " \n", + "#Display original contents of vector\n", + "print \"Size =\",len(v)\n", + "print \"Original contents:\"\n", + "for i in range(len(v)):\n", + " print v[i], \n", + "print \"\\n\"\n", + " \n", + "p=2 #point to 3rd element\n", + "for i in range(10):\n", + " v.insert(p+i,'X')\n", + " \n", + "#display contents after insertion\n", + "print \"Size after insert =\",len(v)\n", + "print \"Contents after insert:\"\n", + "for i in range(len(v)):\n", + " print v[i],\n", + "print \"\\n\"\n", + "\n", + "#remove those elements\n", + "p=2 #point to 3rd element\n", + "for i in range(10):\n", + " v.pop(p)\n", + " \n", + "#display contents after insertion\n", + "print \"Size after erase =\",len(v)\n", + "print \"Contents after insert:\"\n", + "for i in range(len(v)):\n", + " print v[i],\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Size = 10\nOriginal contents:\nA B C D E F G H I J \n\nSize after insert = 20\nContents after insert:\nA B X X X X X X X X X X C D E F G H I J \n\nSize after erase = 10\nContents after insert:\nA B C D E F G H I J\n" + "text": [ + "Size = 10\n", + "Original contents:\n", + "A B C D E F G H I J \n", + "\n", + "Size after insert = 20\n", + "Contents after insert:\n", + "A B X X X X X X X X X X C D E F G H I J \n", + "\n", + "Size after erase = 10\n", + "Contents after insert:\n", + "A B C D E F G H I J\n" + ] } ], "prompt_number": 3 @@ -75,19 +211,84 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.4, Page Number:511

" + "source": [ + "

Example 21.4, Page Number:511

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Store a class object in a vector'''\n\nclass three_d:\n def __init__(self,a,b,c): #3D coordinates\n self.x=a\n self.y=b\n self.z=c\n #Display x,y,z coordinates - three_d inserter.\n def __repr__(self):\n return str(self.x)+\", \"+str(self.y)+\", \"+str(self.z)+\"\\n\"\n def __add__(self,a):\n self.x+=a\n self.y+=a\n self.z+=a\n return self\n def __lt__(self,b):\n return (self.x+self.y+self.z)<(b.x+b.y+b.z)\n def __eq__(self,b):\n return (self.x+self.y+self.z)==(b.x+b.y+b.z) \n \n#Variable declaration\nv=[]\n\n#add objects to the vector\nfor i in range(10):\n v.append(three_d(i,i+2,i-3))\n \n#Display contents of vector\nfor i in range(len(v)):\n print v[i], \nprint\n\n\n#Modify objects in a vector\nfor i in range(len(v)):\n v[i]=v[i]+10 \n\n#Display modified vector\nfor i in range(len(v)):\n print v[i], \n", + "input": [ + "\n", + "class three_d:\n", + " def __init__(self,a,b,c): #3D coordinates\n", + " self.x=a\n", + " self.y=b\n", + " self.z=c\n", + " #Display x,y,z coordinates - three_d inserter.\n", + " def __repr__(self):\n", + " return str(self.x)+\", \"+str(self.y)+\", \"+str(self.z)+\"\\n\"\n", + " def __add__(self,a):\n", + " self.x+=a\n", + " self.y+=a\n", + " self.z+=a\n", + " return self\n", + " def __lt__(self,b):\n", + " return (self.x+self.y+self.z)<(b.x+b.y+b.z)\n", + " def __eq__(self,b):\n", + " return (self.x+self.y+self.z)==(b.x+b.y+b.z) \n", + " \n", + "#Variable declaration\n", + "v=[]\n", + "\n", + "#add objects to the vector\n", + "for i in range(10):\n", + " v.append(three_d(i,i+2,i-3))\n", + " \n", + "#Display contents of vector\n", + "for i in range(len(v)):\n", + " print v[i], \n", + "print\n", + "\n", + "\n", + "#Modify objects in a vector\n", + "for i in range(len(v)):\n", + " v[i]=v[i]+10 \n", + "\n", + "#Display modified vector\n", + "for i in range(len(v)):\n", + " print v[i], \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "0, 2, -3\n 1, 3, -2\n 2, 4, -1\n 3, 5, 0\n 4, 6, 1\n 5, 7, 2\n 6, 8, 3\n 7, 9, 4\n 8, 10, 5\n 9, 11, 6\n\n10, 12, 7\n 11, 13, 8\n 12, 14, 9\n 13, 15, 10\n 14, 16, 11\n 15, 17, 12\n 16, 18, 13\n 17, 19, 14\n 18, 20, 15\n 19, 21, 16\n\n" + "text": [ + "0, 2, -3\n", + " 1, 3, -2\n", + " 2, 4, -1\n", + " 3, 5, 0\n", + " 4, 6, 1\n", + " 5, 7, 2\n", + " 6, 8, 3\n", + " 7, 9, 4\n", + " 8, 10, 5\n", + " 9, 11, 6\n", + "\n", + "10, 12, 7\n", + " 11, 13, 8\n", + " 12, 14, 9\n", + " 13, 15, 10\n", + " 14, 16, 11\n", + " 15, 17, 12\n", + " 16, 18, 13\n", + " 17, 19, 14\n", + " 18, 20, 15\n", + " 19, 21, 16\n", + "\n" + ] } ], "prompt_number": 4 @@ -95,19 +296,64 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.5, Page Number:513

" + "source": [ + "

Example 21.5, Page Number:513

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Store a class object in a vector'''\n \n#Variable declaration\nv=[]\nv2=[]\n\nfor i in range(10):\n v.append(chr(ord('A')+i))\n \n#Display original contents of vector\nprint \"Size =\",len(v)\nprint \"Original contents:\"\nfor i in range(len(v)):\n print v[i], \nprint \"\\n\"\n\n#initialze second vector\nstr=\"-STL Power-\"\nfor i in range(len(str)):\n v2.append(str[i])\n \n#get iterators to the middle of v and to the start and end of v2.\np=5\np2start=0\np2end=len(v2)-1\n\n#insert v2 into v\nfor i in range(p2end):\n v.insert(p+i,v2[p2start+i])\n \n#display result\nprint \"Contents of v after inserton:\"\nfor i in range(len(v)):\n print v[i],\n ", + "input": [ + "\n", + " \n", + "#Variable declaration\n", + "v=[]\n", + "v2=[]\n", + "\n", + "for i in range(10):\n", + " v.append(chr(ord('A')+i))\n", + " \n", + "#Display original contents of vector\n", + "print \"Size =\",len(v)\n", + "print \"Original contents:\"\n", + "for i in range(len(v)):\n", + " print v[i], \n", + "print \"\\n\"\n", + "\n", + "#initialze second vector\n", + "str=\"-STL Power-\"\n", + "for i in range(len(str)):\n", + " v2.append(str[i])\n", + " \n", + "#get iterators to the middle of v and to the start and end of v2.\n", + "p=5\n", + "p2start=0\n", + "p2end=len(v2)-1\n", + "\n", + "#insert v2 into v\n", + "for i in range(p2end):\n", + " v.insert(p+i,v2[p2start+i])\n", + " \n", + "#display result\n", + "print \"Contents of v after inserton:\"\n", + "for i in range(len(v)):\n", + " print v[i],\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Size = 10\nOriginal contents:\nA B C D E F G H I J \n\nContents of v after inserton:\nA B C D E - S T L P o w e r F G H I J\n" + "text": [ + "Size = 10\n", + "Original contents:\n", + "A B C D E F G H I J \n", + "\n", + "Contents of v after inserton:\n", + "A B C D E - S T L P o w e r F G H I J\n" + ] } ], "prompt_number": 5 @@ -115,19 +361,40 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.6, Page Number:517

" + "source": [ + "

Example 21.6, Page Number:517

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate list basics'''\n\n#Variable declaration\nlst=[] #create an empty list\n\nfor i in range(10):\n lst.append(chr(ord('A')+i))\n \nprint \"Size =\",len(lst)\n\nprint \"Contents:\",\nfor p in lst:\n print p, \nprint \"\\n\"", + "input": [ + "\n", + "\n", + "#Variable declaration\n", + "lst=[] #create an empty list\n", + "\n", + "for i in range(10):\n", + " lst.append(chr(ord('A')+i))\n", + " \n", + "print \"Size =\",len(lst)\n", + "\n", + "print \"Contents:\",\n", + "for p in lst:\n", + " print p, \n", + "print \"\\n\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Size = 10\nContents: A B C D E F G H I J \n\n" + "text": [ + "Size = 10\n", + "Contents: A B C D E F G H I J \n", + "\n" + ] } ], "prompt_number": 6 @@ -135,19 +402,53 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.7, Page Number:518

" + "source": [ + "

Example 21.7, Page Number:518

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''elements can be put on the front or end of a list'''\n\n#Variable declaration\nlst=[] \nrevlst=[]\n\nfor i in range(10):\n lst.append(chr(ord('A')+i))\n \nprint \"Size of list =\",len(lst)\n\nprint \"Original Contents:\",\n#Remove elements from lst and put them into revlst in reverse order.\nfor p in lst:\n print p, \n revlst.insert(0,p) \nfor i in range(10):\n lst.pop(0)\nprint \"\\n\"\n\nprint \"Size of revlst =\",len(revlst)\n\nprint \"Reversed Contents:\",\nfor p in revlst:\n print p,", + "input": [ + "\n", + "\n", + "#Variable declaration\n", + "lst=[] \n", + "revlst=[]\n", + "\n", + "for i in range(10):\n", + " lst.append(chr(ord('A')+i))\n", + " \n", + "print \"Size of list =\",len(lst)\n", + "\n", + "print \"Original Contents:\",\n", + "#Remove elements from lst and put them into revlst in reverse order.\n", + "for p in lst:\n", + " print p, \n", + " revlst.insert(0,p) \n", + "for i in range(10):\n", + " lst.pop(0)\n", + "print \"\\n\"\n", + "\n", + "print \"Size of revlst =\",len(revlst)\n", + "\n", + "print \"Reversed Contents:\",\n", + "for p in revlst:\n", + " print p," + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Size of list = 10\nOriginal Contents: A B C D E F G H I J \n\nSize of revlst = 10\nReversed Contents: J I H G F E D C B A\n" + "text": [ + "Size of list = 10\n", + "Original Contents: A B C D E F G H I J \n", + "\n", + "Size of revlst = 10\n", + "Reversed Contents: J I H G F E D C B A\n" + ] } ], "prompt_number": 8 @@ -155,19 +456,48 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.8, Page Number:519

" + "source": [ + "

Example 21.8, Page Number:519

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Sort a list'''\n\nimport random\n\n#Variable declaration\nlst=[] \n\n#create a list of random integers\nfor i in range(10):\n lst.append(random.randint(0,100))\n\nprint \"Original Contents:\",\nfor p in lst:\n print p, \nprint \"\\n\"\n\n#sort the list\nlst.sort()\n\nprint \"Sorted Contents:\",\nfor p in lst:\n print p,", + "input": [ + "\n", + "\n", + "import random\n", + "\n", + "#Variable declaration\n", + "lst=[] \n", + "\n", + "#create a list of random integers\n", + "for i in range(10):\n", + " lst.append(random.randint(0,100))\n", + "\n", + "print \"Original Contents:\",\n", + "for p in lst:\n", + " print p, \n", + "print \"\\n\"\n", + "\n", + "#sort the list\n", + "lst.sort()\n", + "\n", + "print \"Sorted Contents:\",\n", + "for p in lst:\n", + " print p," + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Original Contents: 75 73 72 4 88 7 85 21 67 42 \n\nSorted Contents: 4 7 21 42 67 72 73 75 85 88\n" + "text": [ + "Original Contents: 75 73 72 4 88 7 85 21 67 42 \n", + "\n", + "Sorted Contents: 4 7 21 42 67 72 73 75 85 88\n" + ] } ], "prompt_number": 9 @@ -175,19 +505,62 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.9, Page Number:520

" + "source": [ + "

Example 21.9, Page Number:520

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Merge two lists'''\n\n#Variable declaration\nlst1=[] \nlst2=[]\n\nfor i in xrange(0,10,2):\n lst1.append(chr(ord('A')+i))\nfor i in xrange(1,11,2):\n lst2.append(chr(ord('A')+i))\n\nprint \"Contents of lst1:\",\nfor p in lst1:\n print p, \nprint \"\\n\"\n\nprint \"Contents of lst2:\",\nfor p in lst2:\n print p, \nprint \"\\n\"\n\n#merge the lists\nlst1=lst1+lst2\nlst1.sort()\nlst2=[]\n\nif lst2==[]:\n print \"lst2 is now empty\"\n\nprint \"Contentsof lst1 after merge:\"\nfor p in lst1:\n print p,", + "input": [ + "\n", + "\n", + "#Variable declaration\n", + "lst1=[] \n", + "lst2=[]\n", + "\n", + "for i in xrange(0,10,2):\n", + " lst1.append(chr(ord('A')+i))\n", + "for i in xrange(1,11,2):\n", + " lst2.append(chr(ord('A')+i))\n", + "\n", + "print \"Contents of lst1:\",\n", + "for p in lst1:\n", + " print p, \n", + "print \"\\n\"\n", + "\n", + "print \"Contents of lst2:\",\n", + "for p in lst2:\n", + " print p, \n", + "print \"\\n\"\n", + "\n", + "#merge the lists\n", + "lst1=lst1+lst2\n", + "lst1.sort()\n", + "lst2=[]\n", + "\n", + "if lst2==[]:\n", + " print \"lst2 is now empty\"\n", + "\n", + "print \"Contentsof lst1 after merge:\"\n", + "for p in lst1:\n", + " print p," + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Contents of lst1: A C E G I \n\nContents of lst2: B D F H J \n\nlst2 is now empty\nContentsof lst1 after merge:\nA B C D E F G H I J\n" + "text": [ + "Contents of lst1: A C E G I \n", + "\n", + "Contents of lst2: B D F H J \n", + "\n", + "lst2 is now empty\n", + "Contentsof lst1 after merge:\n", + "A B C D E F G H I J\n" + ] } ], "prompt_number": 10 @@ -195,19 +568,72 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.10, Page Number:521

" + "source": [ + "

Example 21.10, Page Number:521

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Store class objects in a list'''\n\nclass myclass:\n def __init__(self,i=0,j=0):\n self.__a=i\n self.__b=j\n self.sum=self.__a+self.__b\n def getsum(self):\n return self.sum\n def __lt__(self,o2):\n return self.sumo2.sum\n def __eq__(self,o2):\n return self.sum==o2.sum\n def __ne__(self, other):\n return not self.__eq__(self)\n \n#create first list\nlst1=[]\nfor i in range(10):\n lst1.append(myclass(i,i))\n \nprint \"First list:\",\nfor p in lst1:\n print p.getsum(),\nprint\n\n#create second list\nlst2=[]\nfor i in range(10):\n lst2.append(myclass(i*2,i*3))\n \nprint \"First list:\",\nfor p in lst2:\n print p.getsum(),\nprint\n \n#Now merge list\nlst1=lst1+lst2\nlst1.sort()\n\n#Display merge list\nprint \"Merged list:\",\nfor p in lst1:\n print p.getsum(),\nprint", + "input": [ + "\n", + "class myclass:\n", + " def __init__(self,i=0,j=0):\n", + " self.__a=i\n", + " self.__b=j\n", + " self.sum=self.__a+self.__b\n", + " def getsum(self):\n", + " return self.sum\n", + " def __lt__(self,o2):\n", + " return self.sumo2.sum\n", + " def __eq__(self,o2):\n", + " return self.sum==o2.sum\n", + " def __ne__(self, other):\n", + " return not self.__eq__(self)\n", + " \n", + "#create first list\n", + "lst1=[]\n", + "for i in range(10):\n", + " lst1.append(myclass(i,i))\n", + " \n", + "print \"First list:\",\n", + "for p in lst1:\n", + " print p.getsum(),\n", + "print\n", + "\n", + "#create second list\n", + "lst2=[]\n", + "for i in range(10):\n", + " lst2.append(myclass(i*2,i*3))\n", + " \n", + "print \"First list:\",\n", + "for p in lst2:\n", + " print p.getsum(),\n", + "print\n", + " \n", + "#Now merge list\n", + "lst1=lst1+lst2\n", + "lst1.sort()\n", + "\n", + "#Display merge list\n", + "print \"Merged list:\",\n", + "for p in lst1:\n", + " print p.getsum(),\n", + "print" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "First list: 0 2 4 6 8 10 12 14 16 18\nFirst list: 0 5 10 15 20 25 30 35 40 45\nMerged list: 0 0 2 4 5 6 8 10 10 12 14 15 16 18 20 25 30 35 40 45\n" + "text": [ + "First list: 0 2 4 6 8 10 12 14 16 18\n", + "First list: 0 5 10 15 20 25 30 35 40 45\n", + "Merged list: 0 0 2 4 5 6 8 10 10 12 14 15 16 18 20 25 30 35 40 45\n" + ] } ], "prompt_number": 12 @@ -215,19 +641,49 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.11, Page Number:527

" + "source": [ + "

Example 21.11, Page Number:527

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A simple map implementation'''\n\n#Variable declaration\nm=[] \n\n#define the function find\ndef find(x,ch):\n for p in x:\n if p[0]==ch:\n return p\n return -1\n\n#put pairs into map\nfor i in range(10):\n m.append([chr(ord('A')+i),i])\n \n#User Input\nch='D'\n\n#find value of the given key\np=find(m,ch)\n\nif not(p==-1):\n print p[1]\nelse:\n print \"Key not in the map\"", + "input": [ + "\n", + "#Variable declaration\n", + "m=[] \n", + "\n", + "#define the function find\n", + "def find(x,ch):\n", + " for p in x:\n", + " if p[0]==ch:\n", + " return p\n", + " return -1\n", + "\n", + "#put pairs into map\n", + "for i in range(10):\n", + " m.append([chr(ord('A')+i),i])\n", + " \n", + "#User Input\n", + "ch='D'\n", + "\n", + "#find value of the given key\n", + "p=find(m,ch)\n", + "\n", + "if not(p==-1):\n", + " print p[1]\n", + "else:\n", + " print \"Key not in the map\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "3\n" + "text": [ + "3\n" + ] } ], "prompt_number": 13 @@ -235,19 +691,66 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.12, Page Number:528

" + "source": [ + "

Example 21.12, Page Number:528

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Using a map to create a dictionary'''\n\n#define the function find\ndef find(x,ch):\n for p in x:\n if p[0].get()==ch.get():\n return p\n return -1\n\n\nclass word:\n def __init__(self,s=\"\"):\n self.str=s\n def get(self):\n return self.str\n #must define less than relative to word objects\n def __lt__(self,b):\n return self.strExample 21.13, Page Number:532

" + "source": [ + "

Example 21.13, Page Number:532

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate count and count_if'''\n\n#This is a unary precdate that determines if character is a vowel\ndef isvowel(ch):\n ch=ch.lower()\n if (ch=='a' or ch=='e'or ch=='i' or ch=='o' or ch=='u'):\n return 1\n else:\n return 0\n\nstr=\"STL programming is powerful.\"\nv=[]\n\nfor i in range(len(str)):\n v.append(str[i])\n \nprint \"Sequence:\",\nfor i in range(len(v)):\n print v[i],\nprint\n\nn=str.count('p')\nprint n,\"characters are p\"\n\n#count if vowel\nn=0\nfor i in v:\n if isvowel(i):\n n+=1\n \nprint n,\"characters are vowels.\"", + "input": [ + "\n", + "\n", + "#This is a unary precdate that determines if character is a vowel\n", + "def isvowel(ch):\n", + " ch=ch.lower()\n", + " if (ch=='a' or ch=='e'or ch=='i' or ch=='o' or ch=='u'):\n", + " return 1\n", + " else:\n", + " return 0\n", + "\n", + "str=\"STL programming is powerful.\"\n", + "v=[]\n", + "\n", + "for i in range(len(str)):\n", + " v.append(str[i])\n", + " \n", + "print \"Sequence:\",\n", + "for i in range(len(v)):\n", + " print v[i],\n", + "print\n", + "\n", + "n=str.count('p')\n", + "print n,\"characters are p\"\n", + "\n", + "#count if vowel\n", + "n=0\n", + "for i in v:\n", + " if isvowel(i):\n", + " n+=1\n", + " \n", + "print n,\"characters are vowels.\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Sequence: S T L p r o g r a m m i n g i s p o w e r f u l .\n2 characters are p\n7 characters are vowels.\n" + "text": [ + "Sequence: S T L p r o g r a m m i n g i s p o w e r f u l .\n", + "2 characters are p\n", + "7 characters are vowels.\n" + ] } ], "prompt_number": 15 @@ -275,19 +816,61 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.14, Page Number:534

" + "source": [ + "

Example 21.14, Page Number:534

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate remove_copy and replace_copy'''\n\nstr=\"This is a test\"\nv=[]\nv2=[]\n\nfor i in range(len(str)):\n v.append(str[i])\n \n# ***implement remove_copy***\nprint \"Input sequence:\",\nfor i in range(len(v)):\n print v[i],\nprint \n\n#Remove all i's\nv2 = str.replace(\"i\", \"\")\n\nprint \"Result after removing i's: \",\nprint v2,\"\\n\"\n\n\n# ***implement replace_copy***\nprint \"Input sequence:\",\nfor i in range(len(v)):\n print v[i],\nprint \n\n#Replace s's with X's\nv2 = str.replace(\"s\", \"X\")\n\nprint \"Result after replacning s's with X's: \",\nprint v2", + "input": [ + "\n", + "\n", + "str=\"This is a test\"\n", + "v=[]\n", + "v2=[]\n", + "\n", + "for i in range(len(str)):\n", + " v.append(str[i])\n", + " \n", + "# ***implement remove_copy***\n", + "print \"Input sequence:\",\n", + "for i in range(len(v)):\n", + " print v[i],\n", + "print \n", + "\n", + "#Remove all i's\n", + "v2 = str.replace(\"i\", \"\")\n", + "\n", + "print \"Result after removing i's: \",\n", + "print v2,\"\\n\"\n", + "\n", + "\n", + "# ***implement replace_copy***\n", + "print \"Input sequence:\",\n", + "for i in range(len(v)):\n", + " print v[i],\n", + "print \n", + "\n", + "#Replace s's with X's\n", + "v2 = str.replace(\"s\", \"X\")\n", + "\n", + "print \"Result after replacning s's with X's: \",\n", + "print v2" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Input sequence: T h i s i s a t e s t\nResult after removing i's: Ths s a test \n\nInput sequence: T h i s i s a t e s t\nResult after replacning s's with X's: ThiX iX a teXt\n" + "text": [ + "Input sequence: T h i s i s a t e s t\n", + "Result after removing i's: Ths s a test \n", + "\n", + "Input sequence: T h i s i s a t e s t\n", + "Result after replacning s's with X's: ThiX iX a teXt\n" + ] } ], "prompt_number": 16 @@ -295,19 +878,46 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.15, Page Number:535

" + "source": [ + "

Example 21.15, Page Number:535

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Reversing a list'''\n\n#Variable declaration\nv=[]\n\nfor i in range(10):\n v.append(i)\n \nprint \"Initial:\",\nfor i in range(len(v)):\n print v[i],\nprint\n\n#Reversing the list\nv.reverse()\n\nprint \"Reversed:\",\nfor i in range(len(v)):\n print v[i],\nprint \n ", + "input": [ + "\n", + "\n", + "#Variable declaration\n", + "v=[]\n", + "\n", + "for i in range(10):\n", + " v.append(i)\n", + " \n", + "print \"Initial:\",\n", + "for i in range(len(v)):\n", + " print v[i],\n", + "print\n", + "\n", + "#Reversing the list\n", + "v.reverse()\n", + "\n", + "print \"Reversed:\",\n", + "for i in range(len(v)):\n", + " print v[i],\n", + "print \n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Initial: 0 1 2 3 4 5 6 7 8 9\nReversed: 9 8 7 6 5 4 3 2 1 0\n" + "text": [ + "Initial: 0 1 2 3 4 5 6 7 8 9\n", + "Reversed: 9 8 7 6 5 4 3 2 1 0\n" + ] } ], "prompt_number": 17 @@ -315,19 +925,54 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.16, Page Number:536

" + "source": [ + "

Example 21.16, Page Number:536

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An implementation of transform algorithm'''\n\n#A simple transformaton function\ndef xform(i):\n return i*i #square original value\n\n#the transorm function\ndef transform(x,f):\n for i in range(len(x)):\n x[i]= f(x[i])\n \n#Variable declaration\nx1=[]\n\n#put values into list\nfor i in range(10):\n x1.append(i)\n\nprint \"Original contents of x1: \",\nfor p in x1:\n print p,\nprint \n\n#transform x1\np=transform(x1,xform)\n\nprint \"Transformed contents of x1:\",\nfor p in x1:\n print p,", + "input": [ + "\n", + "\n", + "#A simple transformaton function\n", + "def xform(i):\n", + " return i*i #square original value\n", + "\n", + "#the transorm function\n", + "def transform(x,f):\n", + " for i in range(len(x)):\n", + " x[i]= f(x[i])\n", + " \n", + "#Variable declaration\n", + "x1=[]\n", + "\n", + "#put values into list\n", + "for i in range(10):\n", + " x1.append(i)\n", + "\n", + "print \"Original contents of x1: \",\n", + "for p in x1:\n", + " print p,\n", + "print \n", + "\n", + "#transform x1\n", + "p=transform(x1,xform)\n", + "\n", + "print \"Transformed contents of x1:\",\n", + "for p in x1:\n", + " print p," + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Original contents of x1: 0 1 2 3 4 5 6 7 8 9\nTransformed contents of x1: 0 1 4 9 16 25 36 49 64 81\n" + "text": [ + "Original contents of x1: 0 1 2 3 4 5 6 7 8 9\n", + "Transformed contents of x1: 0 1 4 9 16 25 36 49 64 81\n" + ] } ], "prompt_number": 18 @@ -335,19 +980,61 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.17, Page Number:540

" + "source": [ + "

Example 21.17, Page Number:540

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A short string demonstration'''\n\nstr1=\"The string class gives \"\nstr2=\"C++ high strng handlng.\"\n\n#assign a string\nstr3=str1\nprint str1,\"\\n\",str3\n\n#Concatenate two strings\nstr3=str1+str2\nprint str3\n\n#Compare strings\nif str3>str1:\n print \"str3 > str1\"\nif str3==str1+str2:\n print \"str3 == str1+str2\"\n \nstr1=\"This is a null-terminated string.\"\nprint str1\n\n#create a string object using another string object\nstr4=str1\nprint str4\n\n#nput a string\nprint \"Enter a string:\"\nstr4=\"Hello\"\nprint str4", + "input": [ + "\n", + "str1=\"The string class gives \"\n", + "str2=\"C++ high strng handlng.\"\n", + "\n", + "#assign a string\n", + "str3=str1\n", + "print str1,\"\\n\",str3\n", + "\n", + "#Concatenate two strings\n", + "str3=str1+str2\n", + "print str3\n", + "\n", + "#Compare strings\n", + "if str3>str1:\n", + " print \"str3 > str1\"\n", + "if str3==str1+str2:\n", + " print \"str3 == str1+str2\"\n", + " \n", + "str1=\"This is a null-terminated string.\"\n", + "print str1\n", + "\n", + "#create a string object using another string object\n", + "str4=str1\n", + "print str4\n", + "\n", + "#nput a string\n", + "print \"Enter a string:\"\n", + "str4=\"Hello\"\n", + "print str4" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "The string class gives \nThe string class gives \nThe string class gives C++ high strng handlng.\nstr3 > str1\nstr3 == str1+str2\nThis is a null-terminated string.\nThis is a null-terminated string.\nEnter a string:\nHello\n" + "text": [ + "The string class gives \n", + "The string class gives \n", + "The string class gives C++ high strng handlng.\n", + "str3 > str1\n", + "str3 == str1+str2\n", + "This is a null-terminated string.\n", + "This is a null-terminated string.\n", + "Enter a string:\n", + "Hello\n" + ] } ], "prompt_number": 19 @@ -355,19 +1042,58 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.18, Page Number:542

" + "source": [ + "

Example 21.18, Page Number:542

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate insert(), erase(), and replace()'''\n\nstr1=\"This is a test\"\nstr2=\"ABCDEFG\"\n\nprint \"Initial strings:\"\nprint \"str1:\",str1\nprint \"str2:\",str2\nprint\n\n#demonstrate insert\nprint \"Insert str2 into str1:\"\nstr1=str1[:5]+str2+str1[5:]\nprint str1,\"\\n\"\n\n#demonstrate erase\nprint \"Remove 7 charecters from str1:\"\nstr1=str[:5]+str[5:]\nprint str1,\"\\n\"\n\n#demonstrate replace\nprint \"Replace 2 characters in str1 with str2:\"\nstr1=str1[:5]+str2+str1[7:]\nprint str1\n", + "input": [ + "\n", + "str1=\"This is a test\"\n", + "str2=\"ABCDEFG\"\n", + "\n", + "print \"Initial strings:\"\n", + "print \"str1:\",str1\n", + "print \"str2:\",str2\n", + "print\n", + "\n", + "#demonstrate insert\n", + "print \"Insert str2 into str1:\"\n", + "str1=str1[:5]+str2+str1[5:]\n", + "print str1,\"\\n\"\n", + "\n", + "#demonstrate erase\n", + "print \"Remove 7 charecters from str1:\"\n", + "str1=str[:5]+str[5:]\n", + "print str1,\"\\n\"\n", + "\n", + "#demonstrate replace\n", + "print \"Replace 2 characters in str1 with str2:\"\n", + "str1=str1[:5]+str2+str1[7:]\n", + "print str1\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Initial strings:\nstr1: This is a test\nstr2: ABCDEFG\n\nInsert str2 into str1:\nThis ABCDEFGis a test \n\nRemove 7 charecters from str1:\nThis is a test \n\nReplace 2 characters in str1 with str2:\nThis ABCDEFG a test\n" + "text": [ + "Initial strings:\n", + "str1: This is a test\n", + "str2: ABCDEFG\n", + "\n", + "Insert str2 into str1:\n", + "This ABCDEFGis a test \n", + "\n", + "Remove 7 charecters from str1:\n", + "This is a test \n", + "\n", + "Replace 2 characters in str1 with str2:\n", + "This ABCDEFG a test\n" + ] } ], "prompt_number": 21 @@ -375,19 +1101,37 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.19, Page Number:543

" + "source": [ + "

Example 21.19, Page Number:543

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of find()'''\n\nimport string\n\n#Variable declaration \ns1=\"The string class makes string handling easy.\"\n\ni=string.find(s1,\"class\")\nif not(i==-1):\n print \"Match found at\",i\n print \"Remaining string is:\",\n s2=s1[i:]\n print s2", + "input": [ + "\n", + "import string\n", + "\n", + "#Variable declaration \n", + "s1=\"The string class makes string handling easy.\"\n", + "\n", + "i=string.find(s1,\"class\")\n", + "if not(i==-1):\n", + " print \"Match found at\",i\n", + " print \"Remaining string is:\",\n", + " s2=s1[i:]\n", + " print s2" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Match found at 11\nRemaining string is: class makes string handling easy.\n" + "text": [ + "Match found at 11\n", + "Remaining string is: class makes string handling easy.\n" + ] } ], "prompt_number": 22 @@ -395,19 +1139,51 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 21.20, Page Number:545

" + "source": [ + "

Example 21.20, Page Number:545

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Using a map to create a dictionary'''\n\n#define the function find\ndef find(x,ch):\n for p in x:\n if p[0]==ch:\n return p\n return -1\n\n\ndictionary=[]\n\ndictionary.append([\"house\",\"A place of dwelling\"])\ndictionary.append([\"keyboard\",\"An input device\"])\ndictionary.append([\"programming\",\"The act of writing a program\"])\ndictionary.append([\"STL\",\"Standard Template Library\"])\n\n#given a word, find meaning\nprint \"Enter word:\"\nstr=\"house\" #User input\n\np=find(dictionary,str)\n\nif not(p==-1):\n print \"Definition:\",p[1]\nelse:\n print \"Word not in the dictionary.\"", + "input": [ + "\n", + "#define the function find\n", + "def find(x,ch):\n", + " for p in x:\n", + " if p[0]==ch:\n", + " return p\n", + " return -1\n", + "\n", + "\n", + "dictionary=[]\n", + "\n", + "dictionary.append([\"house\",\"A place of dwelling\"])\n", + "dictionary.append([\"keyboard\",\"An input device\"])\n", + "dictionary.append([\"programming\",\"The act of writing a program\"])\n", + "dictionary.append([\"STL\",\"Standard Template Library\"])\n", + "\n", + "#given a word, find meaning\n", + "print \"Enter word:\"\n", + "str=\"house\" #User input\n", + "\n", + "p=find(dictionary,str)\n", + "\n", + "if not(p==-1):\n", + " print \"Definition:\",p[1]\n", + "else:\n", + " print \"Word not in the dictionary.\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Enter word:\nDefinition: A place of dwelling\n" + "text": [ + "Enter word:\n", + "Definition: A place of dwelling\n" + ] } ], "prompt_number": 23 @@ -415,7 +1191,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_22(1).ipynb b/C++_from_the_Ground/Chapter_22(1).ipynb index 83be7161..8c26974a 100644 --- a/C++_from_the_Ground/Chapter_22(1).ipynb +++ b/C++_from_the_Ground/Chapter_22(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 22" + "name": "", + "signature": "sha256:53f00d75f5adfa37af0d8067426691c881e1b4ea1e38045c3a67a88230ca00f5" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,44 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 22: The C++ Preprocessor

" + "source": [ + "

Chapter 22: The C++ Preprocessor

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 22.1, Page Number: 550

" + "source": [ + "

Example 22.1, Page Number: 550

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implement a function-like macro'''\n\ndef MIN(a,b):\n if aExample 22.2, Page Number: 551

" + "source": [ + "

Example 22.2, Page Number: 551

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implement a function-like macro'''\n#Since macros is implemented here using functions,\n#it wont give a wrong answer.\n\ndef EVEN(a):\n if a%2==0:\n return 1\n else:\n return 0\n\nif EVEN(9+1):\n print \"is even\"\nelse:\n print \"is odd\"", + "input": [ + "\n", + "\n", + "def EVEN(a):\n", + " if a%2==0:\n", + " return 1\n", + " else:\n", + " return 0\n", + "\n", + "if EVEN(9+1):\n", + " print \"is even\"\n", + "else:\n", + " print \"is odd\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "is even\n" + "text": [ + "is even\n" + ] } ], "prompt_number": 3 @@ -55,19 +93,35 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 22.3, Page Number: 551

" + "source": [ + "

Example 22.3, Page Number: 551

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implement a function-like macro'''\n\ndef EVEN(a):\n if a%2==0:\n return 1\n else:\n return 0\n\nif EVEN(9+1):\n print \"is even\"\nelse:\n print \"is odd\"", + "input": [ + "\n", + "def EVEN(a):\n", + " if a%2==0:\n", + " return 1\n", + " else:\n", + " return 0\n", + "\n", + "if EVEN(9+1):\n", + " print \"is even\"\n", + "else:\n", + " print \"is odd\"" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "is even\n" + "text": [ + "is even\n" + ] } ], "prompt_number": 4 @@ -75,19 +129,31 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 22.4, Page Number: 553

" + "source": [ + "

Example 22.4, Page Number: 553

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Impementing #if'''\n\ndef MAX():\n return 100\n\nif MAX()>10:\n print \"Extra memory required.\"\n ", + "input": [ + "\n", + "def MAX():\n", + " return 100\n", + "\n", + "if MAX()>10:\n", + " print \"Extra memory required.\"\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Extra memory required.\n" + "text": [ + "Extra memory required.\n" + ] } ], "prompt_number": 5 @@ -95,19 +161,33 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 22.5, Page Number: 554

" + "source": [ + "

Example 22.5, Page Number: 554

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Impementing #if/#else'''\n\ndef MAX():\n return 6\n\nif MAX()>10:\n print \"Extra memory required.\"\nelse:\n print \"Current memory OK.\"\n ", + "input": [ + "\n", + "def MAX():\n", + " return 6\n", + "\n", + "if MAX()>10:\n", + " print \"Extra memory required.\"\n", + "else:\n", + " print \"Current memory OK.\"\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Current memory OK.\n" + "text": [ + "Current memory OK.\n" + ] } ], "prompt_number": 7 @@ -115,19 +195,42 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 22.6, Page Number: 556

" + "source": [ + "

Example 22.6, Page Number: 556

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of #ifdef and #ifndef'''\n\ndef TOM():\n pass\n\n\ntry:\n TOM()\nexcept NameError:\n print \"Programmer is unknown.\"\nelse:\n print \"Programmer is Tom.\"\n \ntry:\n RALPH()\nexcept NameError:\n print \"RALPH not defined.\"\n ", + "input": [ + "\n", + "def TOM():\n", + " pass\n", + "\n", + "\n", + "try:\n", + " TOM()\n", + "except NameError:\n", + " print \"Programmer is unknown.\"\n", + "else:\n", + " print \"Programmer is Tom.\"\n", + " \n", + "try:\n", + " RALPH()\n", + "except NameError:\n", + " print \"RALPH not defined.\"\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Programmer is Tom.\nRALPH not defined.\n" + "text": [ + "Programmer is Tom.\n", + "RALPH not defined.\n" + ] } ], "prompt_number": 8 @@ -135,19 +238,32 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 22.7, Page Number: 558

" + "source": [ + "

Example 22.7, Page Number: 558

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implement __LINE__ '''\n\nimport inspect\n\n#Returns the current line number in our program.\ndef lineno():\n return inspect.currentframe().f_back.f_lineno\n \nprint lineno()+200\n", + "input": [ + "\n", + "import inspect\n", + "\n", + "#Returns the current line number in our program.\n", + "def lineno():\n", + " return inspect.currentframe().f_back.f_lineno\n", + " \n", + "print lineno()+200\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "209\n" + "text": [ + "209\n" + ] } ], "prompt_number": 9 @@ -155,19 +271,31 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 22.8, Page Number: 559

" + "source": [ + "

Example 22.8, Page Number: 559

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implemention # operator'''\n\ndef mkstr(s):\n return str(s)\n\n#Result\nprint mkstr('I like C++')\n", + "input": [ + "\n", + "\n", + "def mkstr(s):\n", + " return str(s)\n", + "\n", + "#Result\n", + "print mkstr('I like C++')\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "I like C++\n" + "text": [ + "I like C++\n" + ] } ], "prompt_number": 10 @@ -175,19 +303,32 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 22.9, Page Number: 560

" + "source": [ + "

Example 22.9, Page Number: 560

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implemention # operator'''\n\ndef concat(a,b):\n return a+b\n#Variable declaration\nxy=10\n\n#Result\nexec(\"print %s\")%concat('x','y')", + "input": [ + "\n", + "def concat(a,b):\n", + " return a+b\n", + "#Variable declaration\n", + "xy=10\n", + "\n", + "#Result\n", + "exec(\"print %s\")%concat('x','y')" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10\n" + "text": [ + "10\n" + ] } ], "prompt_number": 11 @@ -195,7 +336,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_3(1).ipynb b/C++_from_the_Ground/Chapter_3(1).ipynb index b0b5479c..19f2cea0 100644 --- a/C++_from_the_Ground/Chapter_3(1).ipynb +++ b/C++_from_the_Ground/Chapter_3(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 3" + "name": "", + "signature": "sha256:a048620e2c0a121c8dd48d68bd57c4172e8820ecd9345c7b4ca01d8f4f4621a3" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,42 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 3: The Basic Data Types

" + "source": [ + "

Chapter 3: The Basic Data Types

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 3.1, Page Number: 35

" + "source": [ + "

Example 3.1, Page Number: 35

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Local Variables'''\n\ndef func():\n x=-199 #local to func\n print x #displays -199 \n \nx=10 #local to main\n\nfunc()\nprint x #displays 10\n", + "input": [ + "\n", + "\n", + "def func():\n", + " x=-199 #local to func\n", + " print x #displays -199 \n", + " \n", + "x=10 #local to main\n", + "\n", + "func()\n", + "print x #displays 10\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "-199\n10\n" + "text": [ + "-199\n", + "10\n" + ] } ], "prompt_number": 1 @@ -35,19 +54,51 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 3.2, Page Number: 37

" + "source": [ + "

Example 3.2, Page Number: 37

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Global Variables'''\n\ndef func1():\n global count\n print \"count: \",count #access global count\n func2()\n\ndef func2():\n for count in range(3): #this is local variable\n print '.',\n\n \ncount=None #global variables\n\nfor i in range(10):\n count=i*2\n func1()\n", + "input": [ + "\n", + "\n", + "def func1():\n", + " global count\n", + " print \"count: \",count #access global count\n", + " func2()\n", + "\n", + "def func2():\n", + " for count in range(3): #this is local variable\n", + " print '.',\n", + "\n", + " \n", + "count=None #global variables\n", + "\n", + "for i in range(10):\n", + " count=i*2\n", + " func1()\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "count: 0\n. . . count: 2\n. . . count: 4\n. . . count: 6\n. . . count: 8\n. . . count: 10\n. . . count: 12\n. . . count: 14\n. . . count: 16\n. . . count: 18\n. . .\n" + "text": [ + "count: 0\n", + ". . . count: 2\n", + ". . . count: 4\n", + ". . . count: 6\n", + ". . . count: 8\n", + ". . . count: 10\n", + ". . . count: 12\n", + ". . . count: 14\n", + ". . . count: 16\n", + ". . . count: 18\n", + ". . .\n" + ] } ], "prompt_number": 1 @@ -55,19 +106,34 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 3.3, Page Number: 40

" + "source": [ + "

Example 3.3, Page Number: 40

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Singned and Unsigned integers'''\n#Since there is no limit to values stored\n#by integers in python, the output would \n#be different from the one in C++.\n\nfrom ctypes import *\n\n#Variable declaration\nj=c_uint(60000)\ni=c_int(60000)\n\n#Result\nprint i.value,j.value", + "input": [ + "\n", + "\n", + "from ctypes import *\n", + "\n", + "#Variable declaration\n", + "j=c_uint(60000)\n", + "i=c_int(60000)\n", + "\n", + "#Result\n", + "print i.value,j.value" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "60000 60000\n" + "text": [ + "60000 60000\n" + ] } ], "prompt_number": 5 @@ -75,19 +141,29 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 3.4, Page Number: 41

" + "source": [ + "

Example 3.4, Page Number: 41

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to print the alphabet in reverse order'''\n\nfor letter in xrange(ord('Z'),ord('A')-1,-1):\n print chr(letter),\n ", + "input": [ + "\n", + "\n", + "for letter in xrange(ord('Z'),ord('A')-1,-1):\n", + " print chr(letter),\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Z Y X W V U T S R Q P O N M L K J I H G F E D C B A\n" + "text": [ + "Z Y X W V U T S R Q P O N M L K J I H G F E D C B A\n" + ] } ], "prompt_number": 8 @@ -95,19 +171,29 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 3.5, Page Number: 44

" + "source": [ + "

Example 3.5, Page Number: 44

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate character escape sequences'''\n\n#prints a newline, a backslash and a backspace\nprint \"\\n\\\\\\b\"\n", + "input": [ + "\n", + "\n", + "#prints a newline, a backslash and a backspace\n", + "print \"\\n\\\\\\b\"\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "\n\\\b\n" + "text": [ + "\n", + "\\\b\n" + ] } ], "prompt_number": 9 @@ -115,19 +201,50 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 3.6, Page Number: 45

" + "source": [ + "

Example 3.6, Page Number: 45

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An example that uses variable initalization'''\n\ndef total(x):\n sum=0\n for i in xrange(1,x+1):\n sum=sum+i\n for count in range(10):\n print '-',\n print \"The current sum is\",sum\n \nprint \"Computing summation of 5.\"\ntotal(5)\n\nprint \"Computing summation of 6.\"\ntotal(6)", + "input": [ + "\n", + "def total(x):\n", + " sum=0\n", + " for i in xrange(1,x+1):\n", + " sum=sum+i\n", + " for count in range(10):\n", + " print '-',\n", + " print \"The current sum is\",sum\n", + " \n", + "print \"Computing summation of 5.\"\n", + "total(5)\n", + "\n", + "print \"Computing summation of 6.\"\n", + "total(6)" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Computing summation of 5.\n- - - - - - - - - - The current sum is 1\n- - - - - - - - - - The current sum is 3\n- - - - - - - - - - The current sum is 6\n- - - - - - - - - - The current sum is 10\n- - - - - - - - - - The current sum is 15\nComputing summation of 6.\n- - - - - - - - - - The current sum is 1\n- - - - - - - - - - The current sum is 3\n- - - - - - - - - - The current sum is 6\n- - - - - - - - - - The current sum is 10\n- - - - - - - - - - The current sum is 15\n- - - - - - - - - - The current sum is 21\n" + "text": [ + "Computing summation of 5.\n", + "- - - - - - - - - - The current sum is 1\n", + "- - - - - - - - - - The current sum is 3\n", + "- - - - - - - - - - The current sum is 6\n", + "- - - - - - - - - - The current sum is 10\n", + "- - - - - - - - - - The current sum is 15\n", + "Computing summation of 6.\n", + "- - - - - - - - - - The current sum is 1\n", + "- - - - - - - - - - The current sum is 3\n", + "- - - - - - - - - - The current sum is 6\n", + "- - - - - - - - - - The current sum is 10\n", + "- - - - - - - - - - The current sum is 15\n", + "- - - - - - - - - - The current sum is 21\n" + ] } ], "prompt_number": 2 @@ -135,19 +252,39 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 3.7, Page Number: 47

" + "source": [ + "

Example 3.7, Page Number: 47

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate arithmetic operations'''\n\n#Variable declaration\nx=10\ny=3\n\nprint x/y #will display 3\nprint x%y #will display1, the remainder\n\nx=1\ny=2\n\n#Result\nprint x/y,x%y #will display 0 1", + "input": [ + "\n", + "#Variable declaration\n", + "x=10\n", + "y=3\n", + "\n", + "print x/y #will display 3\n", + "print x%y #will display1, the remainder\n", + "\n", + "x=1\n", + "y=2\n", + "\n", + "#Result\n", + "print x/y,x%y #will display 0 1" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "3\n1\n0 1\n" + "text": [ + "3\n", + "1\n", + "0 1\n" + ] } ], "prompt_number": 11 @@ -155,19 +292,43 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 3.8, Page Number: 51

" + "source": [ + "

Example 3.8, Page Number: 51

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate the xor function'''\n\n#the xor function\ndef xor(a,b):\n return (a or b)and(not(a and b))\n\n#User-input\nprint \"Enter P(0 or 1):\"\np=1 \nprint \"Enter Q(0 or 1):\"\nq=0\n\n#Result\nprint \"P AND Q:\",(p and q)\nprint \"P OR Q:\",(p or q)\nprint \"P XOR Q:\",xor(p,q)\n", + "input": [ + "\n", + "#the xor function\n", + "def xor(a,b):\n", + " return (a or b)and(not(a and b))\n", + "\n", + "#User-input\n", + "print \"Enter P(0 or 1):\"\n", + "p=1 \n", + "print \"Enter Q(0 or 1):\"\n", + "q=0\n", + "\n", + "#Result\n", + "print \"P AND Q:\",(p and q)\n", + "print \"P OR Q:\",(p or q)\n", + "print \"P XOR Q:\",xor(p,q)\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Enter P(0 or 1):\nEnter Q(0 or 1):\nP AND Q: 0\nP OR Q: 1\nP XOR Q: True\n" + "text": [ + "Enter P(0 or 1):\n", + "Enter Q(0 or 1):\n", + "P AND Q: 0\n", + "P OR Q: 1\n", + "P XOR Q: True\n" + ] } ], "prompt_number": 12 @@ -175,19 +336,127 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 3.9, Page Number: 54

" + "source": [ + "

Example 3.9, Page Number: 54

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate casting'''\n\nfor i in xrange(1,100+1):\n print i,\"/ 2 is:\",float(i)/2\n", + "input": [ + "\n", + "\n", + "for i in xrange(1,100+1):\n", + " print i,\"/ 2 is:\",float(i)/2\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1 / 2 is: 0.5\n2 / 2 is: 1.0\n3 / 2 is: 1.5\n4 / 2 is: 2.0\n5 / 2 is: 2.5\n6 / 2 is: 3.0\n7 / 2 is: 3.5\n8 / 2 is: 4.0\n9 / 2 is: 4.5\n10 / 2 is: 5.0\n11 / 2 is: 5.5\n12 / 2 is: 6.0\n13 / 2 is: 6.5\n14 / 2 is: 7.0\n15 / 2 is: 7.5\n16 / 2 is: 8.0\n17 / 2 is: 8.5\n18 / 2 is: 9.0\n19 / 2 is: 9.5\n20 / 2 is: 10.0\n21 / 2 is: 10.5\n22 / 2 is: 11.0\n23 / 2 is: 11.5\n24 / 2 is: 12.0\n25 / 2 is: 12.5\n26 / 2 is: 13.0\n27 / 2 is: 13.5\n28 / 2 is: 14.0\n29 / 2 is: 14.5\n30 / 2 is: 15.0\n31 / 2 is: 15.5\n32 / 2 is: 16.0\n33 / 2 is: 16.5\n34 / 2 is: 17.0\n35 / 2 is: 17.5\n36 / 2 is: 18.0\n37 / 2 is: 18.5\n38 / 2 is: 19.0\n39 / 2 is: 19.5\n40 / 2 is: 20.0\n41 / 2 is: 20.5\n42 / 2 is: 21.0\n43 / 2 is: 21.5\n44 / 2 is: 22.0\n45 / 2 is: 22.5\n46 / 2 is: 23.0\n47 / 2 is: 23.5\n48 / 2 is: 24.0\n49 / 2 is: 24.5\n50 / 2 is: 25.0\n51 / 2 is: 25.5\n52 / 2 is: 26.0\n53 / 2 is: 26.5\n54 / 2 is: 27.0\n55 / 2 is: 27.5\n56 / 2 is: 28.0\n57 / 2 is: 28.5\n58 / 2 is: 29.0\n59 / 2 is: 29.5\n60 / 2 is: 30.0\n61 / 2 is: 30.5\n62 / 2 is: 31.0\n63 / 2 is: 31.5\n64 / 2 is: 32.0\n65 / 2 is: 32.5\n66 / 2 is: 33.0\n67 / 2 is: 33.5\n68 / 2 is: 34.0\n69 / 2 is: 34.5\n70 / 2 is: 35.0\n71 / 2 is: 35.5\n72 / 2 is: 36.0\n73 / 2 is: 36.5\n74 / 2 is: 37.0\n75 / 2 is: 37.5\n76 / 2 is: 38.0\n77 / 2 is: 38.5\n78 / 2 is: 39.0\n79 / 2 is: 39.5\n80 / 2 is: 40.0\n81 / 2 is: 40.5\n82 / 2 is: 41.0\n83 / 2 is: 41.5\n84 / 2 is: 42.0\n85 / 2 is: 42.5\n86 / 2 is: 43.0\n87 / 2 is: 43.5\n88 / 2 is: 44.0\n89 / 2 is: 44.5\n90 / 2 is: 45.0\n91 / 2 is: 45.5\n92 / 2 is: 46.0\n93 / 2 is: 46.5\n94 / 2 is: 47.0\n95 / 2 is: 47.5\n96 / 2 is: 48.0\n97 / 2 is: 48.5\n98 / 2 is: 49.0\n99 / 2 is: 49.5\n100 / 2 is: 50.0\n" + "text": [ + "1 / 2 is: 0.5\n", + "2 / 2 is: 1.0\n", + "3 / 2 is: 1.5\n", + "4 / 2 is: 2.0\n", + "5 / 2 is: 2.5\n", + "6 / 2 is: 3.0\n", + "7 / 2 is: 3.5\n", + "8 / 2 is: 4.0\n", + "9 / 2 is: 4.5\n", + "10 / 2 is: 5.0\n", + "11 / 2 is: 5.5\n", + "12 / 2 is: 6.0\n", + "13 / 2 is: 6.5\n", + "14 / 2 is: 7.0\n", + "15 / 2 is: 7.5\n", + "16 / 2 is: 8.0\n", + "17 / 2 is: 8.5\n", + "18 / 2 is: 9.0\n", + "19 / 2 is: 9.5\n", + "20 / 2 is: 10.0\n", + "21 / 2 is: 10.5\n", + "22 / 2 is: 11.0\n", + "23 / 2 is: 11.5\n", + "24 / 2 is: 12.0\n", + "25 / 2 is: 12.5\n", + "26 / 2 is: 13.0\n", + "27 / 2 is: 13.5\n", + "28 / 2 is: 14.0\n", + "29 / 2 is: 14.5\n", + "30 / 2 is: 15.0\n", + "31 / 2 is: 15.5\n", + "32 / 2 is: 16.0\n", + "33 / 2 is: 16.5\n", + "34 / 2 is: 17.0\n", + "35 / 2 is: 17.5\n", + "36 / 2 is: 18.0\n", + "37 / 2 is: 18.5\n", + "38 / 2 is: 19.0\n", + "39 / 2 is: 19.5\n", + "40 / 2 is: 20.0\n", + "41 / 2 is: 20.5\n", + "42 / 2 is: 21.0\n", + "43 / 2 is: 21.5\n", + "44 / 2 is: 22.0\n", + "45 / 2 is: 22.5\n", + "46 / 2 is: 23.0\n", + "47 / 2 is: 23.5\n", + "48 / 2 is: 24.0\n", + "49 / 2 is: 24.5\n", + "50 / 2 is: 25.0\n", + "51 / 2 is: 25.5\n", + "52 / 2 is: 26.0\n", + "53 / 2 is: 26.5\n", + "54 / 2 is: 27.0\n", + "55 / 2 is: 27.5\n", + "56 / 2 is: 28.0\n", + "57 / 2 is: 28.5\n", + "58 / 2 is: 29.0\n", + "59 / 2 is: 29.5\n", + "60 / 2 is: 30.0\n", + "61 / 2 is: 30.5\n", + "62 / 2 is: 31.0\n", + "63 / 2 is: 31.5\n", + "64 / 2 is: 32.0\n", + "65 / 2 is: 32.5\n", + "66 / 2 is: 33.0\n", + "67 / 2 is: 33.5\n", + "68 / 2 is: 34.0\n", + "69 / 2 is: 34.5\n", + "70 / 2 is: 35.0\n", + "71 / 2 is: 35.5\n", + "72 / 2 is: 36.0\n", + "73 / 2 is: 36.5\n", + "74 / 2 is: 37.0\n", + "75 / 2 is: 37.5\n", + "76 / 2 is: 38.0\n", + "77 / 2 is: 38.5\n", + "78 / 2 is: 39.0\n", + "79 / 2 is: 39.5\n", + "80 / 2 is: 40.0\n", + "81 / 2 is: 40.5\n", + "82 / 2 is: 41.0\n", + "83 / 2 is: 41.5\n", + "84 / 2 is: 42.0\n", + "85 / 2 is: 42.5\n", + "86 / 2 is: 43.0\n", + "87 / 2 is: 43.5\n", + "88 / 2 is: 44.0\n", + "89 / 2 is: 44.5\n", + "90 / 2 is: 45.0\n", + "91 / 2 is: 45.5\n", + "92 / 2 is: 46.0\n", + "93 / 2 is: 46.5\n", + "94 / 2 is: 47.0\n", + "95 / 2 is: 47.5\n", + "96 / 2 is: 48.0\n", + "97 / 2 is: 48.5\n", + "98 / 2 is: 49.0\n", + "99 / 2 is: 49.5\n", + "100 / 2 is: 50.0\n" + ] } ], "prompt_number": 3 @@ -195,7 +464,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_4(1).ipynb b/C++_from_the_Ground/Chapter_4(1).ipynb index 5bc3dfe7..ebd72abc 100644 --- a/C++_from_the_Ground/Chapter_4(1).ipynb +++ b/C++_from_the_Ground/Chapter_4(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 4" + "name": "", + "signature": "sha256:7a7e07f5e71ec203dfa93cc13b4ce9de80c80af3b59f8d7d6bebe41c247db83e" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,17 +11,36 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 4: Program Control Statements

" + "source": [ + "

Chapter 4: Program Control Statements

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.1, Page Number: 58

" + "source": [ + "

Example 4.1, Page Number: 58

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Magic Number Program'''\n\nimport random\n\n#Variable declaration and initialization\nmagic = random.randint(0,100) #Number which the user has to guess\nguess = 10 #Number which the user guesses\n\nif guess == magic:\n print \"***Right***\" #Result\n\n\n \n\n", + "input": [ + "\n", + "\n", + "import random\n", + "\n", + "#Variable declaration and initialization\n", + "magic = random.randint(0,100) #Number which the user has to guess\n", + "guess = 10 #Number which the user guesses\n", + "\n", + "if guess == magic:\n", + " print \"***Right***\" #Result\n", + "\n", + "\n", + " \n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [], @@ -29,19 +49,43 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.2, Page Number: 59

" + "source": [ + "

Example 4.2, Page Number: 59

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Magic Number program: 1st improvement'''\n\nimport random\n\n#Variable decleration and initialization\nmagic=random.randint(0,100) #Number to be guessed\nguess = 10 #Number the user guesses\n\n#Result\nif guess == magic:\n print \"***Right***\"\nelse:\n print \"... Sorry, you're wrong.\"\n\n\n\n \n\n", + "input": [ + "\n", + "\n", + "\n", + "import random\n", + "\n", + "#Variable decleration and initialization\n", + "magic=random.randint(0,100) #Number to be guessed\n", + "guess = 10 #Number the user guesses\n", + "\n", + "#Result\n", + "if guess == magic:\n", + " print \"***Right***\"\n", + "else:\n", + " print \"... Sorry, you're wrong.\"\n", + "\n", + "\n", + "\n", + " \n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "... Sorry, you're wrong.\n" + "text": [ + "... Sorry, you're wrong.\n" + ] } ], "prompt_number": 8 @@ -49,19 +93,37 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.3, Page Number: 60

" + "source": [ + "

Example 4.3, Page Number: 60

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''#Divide the first number by the second.'''\n\n#Variable decleration and initialization\na = 30 #User input for the two nos.\nb = 10\n\n#Calculation and Result\nif b:\n print a/b\nelse:\n print \"Cannot divide by zero.\"\n\n\n", + "input": [ + "\n", + "\n", + "#Variable decleration and initialization\n", + "a = 30 #User input for the two nos.\n", + "b = 10\n", + "\n", + "#Calculation and Result\n", + "if b:\n", + " print a/b\n", + "else:\n", + " print \"Cannot divide by zero.\"\n", + "\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "3\n" + "text": [ + "3\n" + ] } ], "prompt_number": 11 @@ -69,12 +131,40 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.4, Page Number: 61

" + "source": [ + "

Example 4.4, Page Number: 61

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Magic Number Program: 2nd improvement'''\n\nimport random\n\n#Variable decleration \nmagic = random.randint(0,100) #Numbr to be guessed\nguess = 10 #Number the user guesses\n\n#Result\nif guess == magic:\n print \"***Right***\"\n print magic,\" is the magic number.\"\nelse:\n print \"... Sorry, you're wrong\" \n if(guess>magic): #use a nested if statement\n print \"Your guess is too high\"\n else:\n print \"Your guess is too low\"\n\n \n \n\n \n \n", + "input": [ + "\n", + "\n", + "\n", + "import random\n", + "\n", + "#Variable decleration \n", + "magic = random.randint(0,100) #Numbr to be guessed\n", + "guess = 10 #Number the user guesses\n", + "\n", + "#Result\n", + "if guess == magic:\n", + " print \"***Right***\"\n", + " print magic,\" is the magic number.\"\n", + "else:\n", + " print \"... Sorry, you're wrong\" \n", + " if(guess>magic): #use a nested if statement\n", + " print \"Your guess is too high\"\n", + " else:\n", + " print \"Your guess is too low\"\n", + "\n", + " \n", + " \n", + "\n", + " \n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [] @@ -82,19 +172,46 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.5, Page Number: 62

" + "source": [ + "

Example 4.5, Page Number: 62

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Demonstrate an if-else-if ladder'''\n\nfor x in range(6):\n if x==1: #using if-else ladder in a for loop\n print \"x is one\"\n elif x==2:\n print \"x is two\"\n elif x==3:\n print \"x is three\"\n elif x==4:\n print \"x is four\"\n else:\n print \"x is not between 1 nd 4\"\n \n \n \n", + "input": [ + "\n", + "\n", + "\n", + "for x in range(6):\n", + " if x==1: #using if-else ladder in a for loop\n", + " print \"x is one\"\n", + " elif x==2:\n", + " print \"x is two\"\n", + " elif x==3:\n", + " print \"x is three\"\n", + " elif x==4:\n", + " print \"x is four\"\n", + " else:\n", + " print \"x is not between 1 nd 4\"\n", + " \n", + " \n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "x is not between 1 nd 4\nx is one\nx is two\nx is three\nx is four\nx is not between 1 nd 4\n" + "text": [ + "x is not between 1 nd 4\n", + "x is one\n", + "x is two\n", + "x is three\n", + "x is four\n", + "x is not between 1 nd 4\n" + ] } ], "prompt_number": 13 @@ -102,19 +219,131 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.6, Page Number: 63

" + "source": [ + "

Example 4.6, Page Number: 63

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''For loop demonstration'''\n\nimport math\n\nfor num in range(100):\n sq_root = math.sqrt(float(num)) #Calculation\n print num,\" \",sq_root #Result\n ", + "input": [ + "\n", + "\n", + "import math\n", + "\n", + "for num in range(100):\n", + " sq_root = math.sqrt(float(num)) #Calculation\n", + " print num,\" \",sq_root #Result\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "0 0.0\n1 1.0\n2 1.41421356237\n3 1.73205080757\n4 2.0\n5 2.2360679775\n6 2.44948974278\n7 2.64575131106\n8 2.82842712475\n9 3.0\n10 3.16227766017\n11 3.31662479036\n12 3.46410161514\n13 3.60555127546\n14 3.74165738677\n15 3.87298334621\n16 4.0\n17 4.12310562562\n18 4.24264068712\n19 4.35889894354\n20 4.472135955\n21 4.58257569496\n22 4.69041575982\n23 4.79583152331\n24 4.89897948557\n25 5.0\n26 5.09901951359\n27 5.19615242271\n28 5.29150262213\n29 5.38516480713\n30 5.47722557505\n31 5.56776436283\n32 5.65685424949\n33 5.74456264654\n34 5.83095189485\n35 5.9160797831\n36 6.0\n37 6.0827625303\n38 6.16441400297\n39 6.2449979984\n40 6.32455532034\n41 6.40312423743\n42 6.48074069841\n43 6.5574385243\n44 6.63324958071\n45 6.7082039325\n46 6.78232998313\n47 6.8556546004\n48 6.92820323028\n49 7.0\n50 7.07106781187\n51 7.14142842854\n52 7.21110255093\n53 7.28010988928\n54 7.34846922835\n55 7.4161984871\n56 7.48331477355\n57 7.54983443527\n58 7.61577310586\n59 7.68114574787\n60 7.74596669241\n61 7.81024967591\n62 7.87400787401\n63 7.93725393319\n64 8.0\n65 8.0622577483\n66 8.12403840464\n67 8.18535277187\n68 8.24621125124\n69 8.30662386292\n70 8.36660026534\n71 8.42614977318\n72 8.48528137424\n73 8.54400374532\n74 8.60232526704\n75 8.66025403784\n76 8.71779788708\n77 8.77496438739\n78 8.83176086633\n79 8.88819441732\n80 8.94427191\n81 9.0\n82 9.05538513814\n83 9.11043357914\n84 9.16515138991\n85 9.21954445729\n86 9.2736184955\n87 9.32737905309\n88 9.38083151965\n89 9.43398113206\n90 9.48683298051\n91 9.53939201417\n92 9.59166304663\n93 9.64365076099\n94 9.69535971483\n95 9.74679434481\n96 9.79795897113\n97 9.8488578018\n98 9.89949493661\n99 9.94987437107\n" + "text": [ + "0 0.0\n", + "1 1.0\n", + "2 1.41421356237\n", + "3 1.73205080757\n", + "4 2.0\n", + "5 2.2360679775\n", + "6 2.44948974278\n", + "7 2.64575131106\n", + "8 2.82842712475\n", + "9 3.0\n", + "10 3.16227766017\n", + "11 3.31662479036\n", + "12 3.46410161514\n", + "13 3.60555127546\n", + "14 3.74165738677\n", + "15 3.87298334621\n", + "16 4.0\n", + "17 4.12310562562\n", + "18 4.24264068712\n", + "19 4.35889894354\n", + "20 4.472135955\n", + "21 4.58257569496\n", + "22 4.69041575982\n", + "23 4.79583152331\n", + "24 4.89897948557\n", + "25 5.0\n", + "26 5.09901951359\n", + "27 5.19615242271\n", + "28 5.29150262213\n", + "29 5.38516480713\n", + "30 5.47722557505\n", + "31 5.56776436283\n", + "32 5.65685424949\n", + "33 5.74456264654\n", + "34 5.83095189485\n", + "35 5.9160797831\n", + "36 6.0\n", + "37 6.0827625303\n", + "38 6.16441400297\n", + "39 6.2449979984\n", + "40 6.32455532034\n", + "41 6.40312423743\n", + "42 6.48074069841\n", + "43 6.5574385243\n", + "44 6.63324958071\n", + "45 6.7082039325\n", + "46 6.78232998313\n", + "47 6.8556546004\n", + "48 6.92820323028\n", + "49 7.0\n", + "50 7.07106781187\n", + "51 7.14142842854\n", + "52 7.21110255093\n", + "53 7.28010988928\n", + "54 7.34846922835\n", + "55 7.4161984871\n", + "56 7.48331477355\n", + "57 7.54983443527\n", + "58 7.61577310586\n", + "59 7.68114574787\n", + "60 7.74596669241\n", + "61 7.81024967591\n", + "62 7.87400787401\n", + "63 7.93725393319\n", + "64 8.0\n", + "65 8.0622577483\n", + "66 8.12403840464\n", + "67 8.18535277187\n", + "68 8.24621125124\n", + "69 8.30662386292\n", + "70 8.36660026534\n", + "71 8.42614977318\n", + "72 8.48528137424\n", + "73 8.54400374532\n", + "74 8.60232526704\n", + "75 8.66025403784\n", + "76 8.71779788708\n", + "77 8.77496438739\n", + "78 8.83176086633\n", + "79 8.88819441732\n", + "80 8.94427191\n", + "81 9.0\n", + "82 9.05538513814\n", + "83 9.11043357914\n", + "84 9.16515138991\n", + "85 9.21954445729\n", + "86 9.2736184955\n", + "87 9.32737905309\n", + "88 9.38083151965\n", + "89 9.43398113206\n", + "90 9.48683298051\n", + "91 9.53939201417\n", + "92 9.59166304663\n", + "93 9.64365076099\n", + "94 9.69535971483\n", + "95 9.74679434481\n", + "96 9.79795897113\n", + "97 9.8488578018\n", + "98 9.89949493661\n", + "99 9.94987437107\n" + ] } ], "prompt_number": 14 @@ -122,19 +351,29 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.7, Page Number: 64

" + "source": [ + "

Example 4.7, Page Number: 64

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Printin numbers 100 to -100 in decrements of 5'''\n\nfor i in xrange(100,-100,-5): \n print i,\n \n", + "input": [ + "\n", + "\n", + "for i in xrange(100,-100,-5): \n", + " print i,\n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95\n" + "text": [ + "100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95\n" + ] } ], "prompt_number": 1 @@ -142,19 +381,35 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.8, Page Number: 66

" + "source": [ + "

Example 4.8, Page Number: 66

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Runs a loop till 123 is typed'''\n\n#Variable decleration\nx=0\n\n#Loop till 123 is entered\nwhile x!=123:\n print \"Enter a number: \"\n x = 123\n \n", + "input": [ + "\n", + "\n", + "\n", + "#Variable decleration\n", + "x=0\n", + "\n", + "#Loop till 123 is entered\n", + "while x!=123:\n", + " print \"Enter a number: \"\n", + " x = 123\n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Enter a number: \n" + "text": [ + "Enter a number: \n" + ] } ], "prompt_number": 11 @@ -162,19 +417,48 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.9, Page Number: 68

" + "source": [ + "

Example 4.9, Page Number: 68

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Demonstrate switch usig \"help\" program'''\n\n#Displaying the menu\nprint \"Help on:\"\nprint \"1. for\"\nprint \"2. if\"\nprint \"3. while\"\n\n\nchoice = 2 #Choice of user\n\nif choice==1: #Executing users choice with if-else\n print \"for is c++'s most versatile loop.\"\nelif choice==2:\n print \"if is c++'s conditional branch statement.\"\nelif choice==3:\n print \"switch is C++'s multiway branch statement. \"\nelse:\n print \"You must enter a number between 1 and 3.\"\n \n", + "input": [ + "\n", + "\n", + "#Displaying the menu\n", + "print \"Help on:\"\n", + "print \"1. for\"\n", + "print \"2. if\"\n", + "print \"3. while\"\n", + "\n", + "\n", + "choice = 2 #Choice of user\n", + "\n", + "if choice==1: #Executing users choice with if-else\n", + " print \"for is c++'s most versatile loop.\"\n", + "elif choice==2:\n", + " print \"if is c++'s conditional branch statement.\"\n", + "elif choice==3:\n", + " print \"switch is C++'s multiway branch statement. \"\n", + "else:\n", + " print \"You must enter a number between 1 and 3.\"\n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Help on:\n1. for\n2. if\n3. while\nif is c++'s conditional branch statement.\n" + "text": [ + "Help on:\n", + "1. for\n", + "2. if\n", + "3. while\n", + "if is c++'s conditional branch statement.\n" + ] } ], "prompt_number": 19 @@ -182,19 +466,42 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.10, Page Number: 69

" + "source": [ + "

Example 4.10, Page Number: 69

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing the switch statement'''\n#If switch without break is used(as in the book), \n#it gives a different output(Fall through).'''\n\nfor i in range(5):\n if i==0:\n print \"less than 1\"\n elif i==1:\n print \"less than 2\"\n elif i==2:\n print \"less than 3\"\n elif i==3:\n print \"less than 4\"\n elif i==4:\n print \"less than 5\"\n\n", + "input": [ + "\n", + "\n", + "for i in range(5):\n", + " if i==0:\n", + " print \"less than 1\"\n", + " elif i==1:\n", + " print \"less than 2\"\n", + " elif i==2:\n", + " print \"less than 3\"\n", + " elif i==3:\n", + " print \"less than 4\"\n", + " elif i==4:\n", + " print \"less than 5\"\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "less than 1\nless than 2\nless than 3\nless than 4\nless than 5\n" + "text": [ + "less than 1\n", + "less than 2\n", + "less than 3\n", + "less than 4\n", + "less than 5\n" + ] } ], "prompt_number": 20 @@ -202,19 +509,167 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.11, Page Number: 71

" + "source": [ + "

Example 4.11, Page Number: 71

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Displays all printable characters.'''\n\n#Variable decleration\nch = 32\n\n#Loop to print the characters\nfor ch in range(128):\n print chr(ch)\n \n", + "input": [ + "\n", + "'''Displays all printable characters.'''\n", + "\n", + "#Variable decleration\n", + "ch = 32\n", + "\n", + "#Loop to print the characters\n", + "for ch in range(128):\n", + " print chr(ch)\n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "\u0000\n\u0001\n\u0002\n\u0003\n\u0004\n\u0005\n\u0006\n\u0007\n\b\n\t\n\n\n\u000b\n\f\n\r\n\u000e\n\u000f\n\u0010\n\u0011\n\u0012\n\u0013\n\u0014\n\u0015\n\u0016\n\u0017\n\u0018\n\u0019\n\u001a\n\u001b\n\u001c\n\u001d\n\u001e\n\u001f\n \n!\n\"\n#\n$\n%\n&\n'\n(\n)\n*\n+\n,\n-\n.\n/\n0\n1\n2\n3\n4\n5\n6\n7\n8\n9\n:\n;\n<\n=\n>\n?\n@\nA\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nL\nM\nN\nO\nP\nQ\nR\nS\nT\nU\nV\nW\nX\nY\nZ\n[\n\\\n]\n^\n_\n`\na\nb\nc\nd\ne\nf\ng\nh\ni\nj\nk\nl\nm\nn\no\np\nq\nr\ns\nt\nu\nv\nw\nx\ny\nz\n{\n|\n}\n~\n\u007f\n" + "text": [ + "\u0000\n", + "\u0001\n", + "\u0002\n", + "\u0003\n", + "\u0004\n", + "\u0005\n", + "\u0006\n", + "\u0007\n", + "\b\n", + "\t\n", + "\n", + "\n", + "\u000b", + "\n", + "\f", + "\n", + "\r\n", + "\u000e\n", + "\u000f\n", + "\u0010\n", + "\u0011\n", + "\u0012\n", + "\u0013\n", + "\u0014\n", + "\u0015\n", + "\u0016\n", + "\u0017\n", + "\u0018\n", + "\u0019\n", + "\u001a\n", + "\u001b\n", + "\u001c", + "\n", + "\u001d", + "\n", + "\u001e", + "\n", + "\u001f\n", + " \n", + "!\n", + "\"\n", + "#\n", + "$\n", + "%\n", + "&\n", + "'\n", + "(\n", + ")\n", + "*\n", + "+\n", + ",\n", + "-\n", + ".\n", + "/\n", + "0\n", + "1\n", + "2\n", + "3\n", + "4\n", + "5\n", + "6\n", + "7\n", + "8\n", + "9\n", + ":\n", + ";\n", + "<\n", + "=\n", + ">\n", + "?\n", + "@\n", + "A\n", + "B\n", + "C\n", + "D\n", + "E\n", + "F\n", + "G\n", + "H\n", + "I\n", + "J\n", + "K\n", + "L\n", + "M\n", + "N\n", + "O\n", + "P\n", + "Q\n", + "R\n", + "S\n", + "T\n", + "U\n", + "V\n", + "W\n", + "X\n", + "Y\n", + "Z\n", + "[\n", + "\\\n", + "]\n", + "^\n", + "_\n", + "`\n", + "a\n", + "b\n", + "c\n", + "d\n", + "e\n", + "f\n", + "g\n", + "h\n", + "i\n", + "j\n", + "k\n", + "l\n", + "m\n", + "n\n", + "o\n", + "p\n", + "q\n", + "r\n", + "s\n", + "t\n", + "u\n", + "v\n", + "w\n", + "x\n", + "y\n", + "z\n", + "{\n", + "|\n", + "}\n", + "~\n", + "\u007f\n" + ] } ], "prompt_number": 21 @@ -222,19 +677,35 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.12, Page Number: 72

" + "source": [ + "

Example 4.12, Page Number: 72

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Example for while loop'''\n\n#Variable decleration\nlen = 5\n\nwhile (len>0 & len<80):\n print \".\"\n len-=1\n", + "input": [ + "\n", + "#Variable decleration\n", + "len = 5\n", + "\n", + "while (len>0 & len<80):\n", + " print \".\"\n", + " len-=1\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": ".\n.\n.\n.\n.\n" + "text": [ + ".\n", + ".\n", + ".\n", + ".\n", + ".\n" + ] } ], "prompt_number": 22 @@ -242,19 +713,38 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.13, Page Number: 73

" + "source": [ + "

Example 4.13, Page Number: 73

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to loop till number 100 is entered'''\n\n#Variable Declaration\nnum=95\n\nwhile True:\n print \"Enter a number(100 to stop): \"\n num+=1 #User input, incrementing num till it reaches 100\n if(num==100): #Condition check to stop loop\n break\n", + "input": [ + "\n", + "\n", + "#Variable Declaration\n", + "num=95\n", + "\n", + "while True:\n", + " print \"Enter a number(100 to stop): \"\n", + " num+=1 #User input, incrementing num till it reaches 100\n", + " if(num==100): #Condition check to stop loop\n", + " break\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Enter a number(100 to stop): \nEnter a number(100 to stop): \nEnter a number(100 to stop): \nEnter a number(100 to stop): \nEnter a number(100 to stop): \n" + "text": [ + "Enter a number(100 to stop): \n", + "Enter a number(100 to stop): \n", + "Enter a number(100 to stop): \n", + "Enter a number(100 to stop): \n", + "Enter a number(100 to stop): \n" + ] } ], "prompt_number": 9 @@ -262,19 +752,79 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.14, Page Number: 73

" + "source": [ + "

Example 4.14, Page Number: 73

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Magic Number program: 3rd improvement.'''\n\nimport random\n\n#Variable decleration\nmagic = random.randint(0,100) #Number which the user has to guess\nlow=0\nhigh=100\n\n#Play thr magic number game\nwhile True:\n guess = random.randint(low,high) #Number which the user guesses\n if guess==magic: \n print \"**Right**\"\n print magic,\" is the magic number.\"\n break\n else:\n print \"...Sorry, you're wrong.\"\n if(guess>magic):\n print \"Your guess is too high.\"\n high=guess\n else:\n print \"Your guess is too low.\"\n low=guess\n \n \n", + "input": [ + "\n", + "\n", + "import random\n", + "\n", + "#Variable decleration\n", + "magic = random.randint(0,100) #Number which the user has to guess\n", + "low=0\n", + "high=100\n", + "\n", + "#Play thr magic number game\n", + "while True:\n", + " guess = random.randint(low,high) #Number which the user guesses\n", + " if guess==magic: \n", + " print \"**Right**\"\n", + " print magic,\" is the magic number.\"\n", + " break\n", + " else:\n", + " print \"...Sorry, you're wrong.\"\n", + " if(guess>magic):\n", + " print \"Your guess is too high.\"\n", + " high=guess\n", + " else:\n", + " print \"Your guess is too low.\"\n", + " low=guess\n", + " \n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "...Sorry, you're wrong.\nYour guess is too low.\n...Sorry, you're wrong.\nYour guess is too high.\n...Sorry, you're wrong.\nYour guess is too low.\n...Sorry, you're wrong.\nYour guess is too high.\n...Sorry, you're wrong.\nYour guess is too low.\n...Sorry, you're wrong.\nYour guess is too high.\n...Sorry, you're wrong.\nYour guess is too low.\n...Sorry, you're wrong.\nYour guess is too high.\n...Sorry, you're wrong.\nYour guess is too low.\n...Sorry, you're wrong.\nYour guess is too low.\n...Sorry, you're wrong.\nYour guess is too high.\n...Sorry, you're wrong.\nYour guess is too high.\n...Sorry, you're wrong.\nYour guess is too high.\n...Sorry, you're wrong.\nYour guess is too low.\n**Right**\n72 is the magic number.\n" + "text": [ + "...Sorry, you're wrong.\n", + "Your guess is too low.\n", + "...Sorry, you're wrong.\n", + "Your guess is too high.\n", + "...Sorry, you're wrong.\n", + "Your guess is too low.\n", + "...Sorry, you're wrong.\n", + "Your guess is too high.\n", + "...Sorry, you're wrong.\n", + "Your guess is too low.\n", + "...Sorry, you're wrong.\n", + "Your guess is too high.\n", + "...Sorry, you're wrong.\n", + "Your guess is too low.\n", + "...Sorry, you're wrong.\n", + "Your guess is too high.\n", + "...Sorry, you're wrong.\n", + "Your guess is too low.\n", + "...Sorry, you're wrong.\n", + "Your guess is too low.\n", + "...Sorry, you're wrong.\n", + "Your guess is too high.\n", + "...Sorry, you're wrong.\n", + "Your guess is too high.\n", + "...Sorry, you're wrong.\n", + "Your guess is too high.\n", + "...Sorry, you're wrong.\n", + "Your guess is too low.\n", + "**Right**\n", + "72 is the magic number.\n" + ] } ], "prompt_number": 26 @@ -282,19 +832,32 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.15, Page Number: 74

" + "source": [ + "

Example 4.15, Page Number: 74

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Example for continue statement'''\n\nfor x in range(100+1):\n if x%2: #Condition check to continue the loop\n continue\n print x,\n \n\n", + "input": [ + "\n", + "\n", + "for x in range(100+1):\n", + " if x%2: #Condition check to continue the loop\n", + " continue\n", + " print x,\n", + " \n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100\n" + "text": [ + "0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100\n" + ] } ], "prompt_number": 2 @@ -302,19 +865,31 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.16, Page Number: 75

" + "source": [ + "

Example 4.16, Page Number: 75

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Iterates from 0 to 9, not to 100'''\n\nfor t in range(100):\n if t==10: #Condition check to break out of the loop\n break\n print t,\n \n", + "input": [ + "\n", + "\n", + "for t in range(100):\n", + " if t==10: #Condition check to break out of the loop\n", + " break\n", + " print t,\n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "0 1 2 3 4 5 6 7 8 9\n" + "text": [ + "0 1 2 3 4 5 6 7 8 9\n" + ] } ], "prompt_number": 3 @@ -322,19 +897,134 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.17, Page Number: 75

" + "source": [ + "

Example 4.17, Page Number: 75

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An example for break'''\n\nfor t in range(100):\n count = 1 \n while True:\n print count,\n count+=1\n if count==10: \n break #Breaks from the inner loop\n print\n\n", + "input": [ + "\n", + "\n", + "for t in range(100):\n", + " count = 1 \n", + " while True:\n", + " print count,\n", + " count+=1\n", + " if count==10: \n", + " break #Breaks from the inner loop\n", + " print\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9\n" + "text": [ + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n", + "1 2 3 4 5 6 7 8 9\n" + ] } ], "prompt_number": 5 @@ -342,24 +1032,206 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.18, Page Number: 76

" + "source": [ + "

Example 4.18, Page Number: 76

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''This Program finds the prime nos. from 2 to 1000'''\n\nfor i in range(2,1000):\n j=2\n for j in range(2,i/j): #Nested for loop\n if i%j == False: #Check for prime no.\n break\n if j>(i/j):\n print i,\" is prime.\" #Result\n\n", + "input": [ + "\n", + "\n", + "for i in range(2,1000):\n", + " j=2\n", + " for j in range(2,i/j): #Nested for loop\n", + " if i%j == False: #Check for prime no.\n", + " break\n", + " if j>(i/j):\n", + " print i,\" is prime.\" #Result\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "2 is prime.\n3 is prime.\n11 is prime.\n13 is prime.\n17 is prime.\n19 is prime.\n23 is prime.\n29 is prime.\n31 is prime.\n37 is prime.\n41 is prime.\n43 is prime.\n47 is prime.\n53 is prime.\n59 is prime.\n61 is prime.\n67 is prime.\n71 is prime.\n73 is prime.\n79 is prime.\n83 is prime.\n89 is prime.\n97 is prime.\n101 is prime.\n103 is prime.\n107 is prime.\n109 is prime.\n113 is prime.\n127 is prime.\n131 is prime.\n137 is prime.\n139 is prime.\n149 is prime.\n151 is prime.\n157 is prime.\n163 is prime.\n167 is prime.\n173 is prime.\n179 is prime.\n181 is prime.\n191 is prime.\n193 is prime.\n197 is prime.\n199 is prime.\n211 is prime.\n223 is prime.\n227 is prime.\n229 is prime.\n233 is prime.\n239 is prime.\n241 is prime.\n251 is prime.\n257 is prime.\n263 is prime.\n269 is prime.\n271 is prime.\n277 is prime.\n281 is prime.\n283 is prime.\n293 is prime.\n307 is prime.\n311 is prime.\n313 is prime.\n317 is prime.\n331 is prime.\n337 is prime.\n347 is prime.\n349 is prime.\n353 is prime.\n359 is prime.\n367 is prime.\n373 is prime.\n379 is prime.\n383 is prime.\n389 is prime.\n397 is prime.\n401 is prime.\n409 is prime.\n419 is prime.\n421 is prime.\n431 is prime.\n433 is prime.\n439 is prime.\n443 is prime.\n449 is prime.\n457 is prime.\n461 is prime.\n463 is prime.\n467 is prime.\n479 is prime.\n487 is prime.\n491 is prime.\n499 is prime.\n503 is prime.\n509 is prime.\n521 is prime.\n523 is prime.\n541 is prime.\n547 is prime.\n557 is prime.\n563 is prime.\n569 is prime.\n571 is prime.\n577 is prime.\n587 is prime.\n593 is prime.\n599 is prime.\n601 is prime.\n607 is prime.\n613 is prime.\n617 is prime.\n619 is prime.\n631 is prime.\n641 is prime.\n643 is prime.\n647 is prime.\n653 is prime.\n659 is prime.\n661 is prime.\n673 is prime.\n677 is prime.\n683 is prime.\n691 is prime.\n701 is prime.\n709 is prime.\n719 is prime.\n727 is prime.\n733 is prime.\n739 is prime.\n743 is prime.\n751 is prime.\n757 is prime.\n761 is prime.\n769 is prime.\n773 is prime.\n787 is prime.\n797 is prime.\n809 is prime.\n811 is prime.\n821 is prime.\n823 is prime.\n827 is prime.\n829 is prime.\n839 is prime.\n853 is prime.\n857 is prime.\n859 is prime.\n863 is prime.\n877" + "text": [ + "2 is prime.\n", + "3 is prime.\n", + "11 is prime.\n", + "13 is prime.\n", + "17 is prime.\n", + "19 is prime.\n", + "23 is prime.\n", + "29 is prime.\n", + "31 is prime.\n", + "37 is prime.\n", + "41 is prime.\n", + "43 is prime.\n", + "47 is prime.\n", + "53 is prime.\n", + "59 is prime.\n", + "61 is prime.\n", + "67 is prime.\n", + "71 is prime.\n", + "73 is prime.\n", + "79 is prime.\n", + "83 is prime.\n", + "89 is prime.\n", + "97 is prime.\n", + "101 is prime.\n", + "103 is prime.\n", + "107 is prime.\n", + "109 is prime.\n", + "113 is prime.\n", + "127 is prime.\n", + "131 is prime.\n", + "137 is prime.\n", + "139 is prime.\n", + "149 is prime.\n", + "151 is prime.\n", + "157 is prime.\n", + "163 is prime.\n", + "167 is prime.\n", + "173 is prime.\n", + "179 is prime.\n", + "181 is prime.\n", + "191 is prime.\n", + "193 is prime.\n", + "197 is prime.\n", + "199 is prime.\n", + "211 is prime.\n", + "223 is prime.\n", + "227 is prime.\n", + "229 is prime.\n", + "233 is prime.\n", + "239 is prime.\n", + "241 is prime.\n", + "251 is prime.\n", + "257 is prime.\n", + "263 is prime.\n", + "269 is prime.\n", + "271 is prime.\n", + "277 is prime.\n", + "281 is prime.\n", + "283 is prime.\n", + "293 is prime.\n", + "307 is prime.\n", + "311 is prime.\n", + "313 is prime.\n", + "317 is prime.\n", + "331 is prime.\n", + "337 is prime.\n", + "347 is prime.\n", + "349 is prime.\n", + "353 is prime.\n", + "359 is prime.\n", + "367 is prime.\n", + "373 is prime.\n", + "379 is prime.\n", + "383 is prime.\n", + "389 is prime.\n", + "397 is prime.\n", + "401 is prime.\n", + "409 is prime.\n", + "419 is prime.\n", + "421 is prime.\n", + "431 is prime.\n", + "433 is prime.\n", + "439 is prime.\n", + "443 is prime.\n", + "449 is prime.\n", + "457 is prime.\n", + "461 is prime.\n", + "463 is prime.\n", + "467 is prime.\n", + "479 is prime.\n", + "487 is prime.\n", + "491 is prime.\n", + "499 is prime.\n", + "503 is prime.\n", + "509 is prime.\n", + "521 is prime.\n", + "523 is prime.\n", + "541 is prime.\n", + "547 is prime.\n", + "557 is prime.\n", + "563 is prime.\n", + "569 is prime.\n", + "571 is prime.\n", + "577 is prime.\n", + "587 is prime.\n", + "593 is prime.\n", + "599 is prime.\n", + "601 is prime.\n", + "607 is prime.\n", + "613 is prime.\n", + "617 is prime.\n", + "619 is prime.\n", + "631 is prime.\n", + "641 is prime.\n", + "643 is prime.\n", + "647 is prime.\n", + "653 is prime.\n", + "659 is prime.\n", + "661 is prime.\n", + "673 is prime.\n", + "677 is prime.\n", + "683 is prime.\n", + "691 is prime.\n", + "701 is prime.\n", + "709 is prime.\n", + "719 is prime.\n", + "727 is prime.\n", + "733 is prime.\n", + "739 is prime.\n", + "743 is prime.\n", + "751 is prime.\n", + "757 is prime.\n", + "761 is prime.\n", + "769 is prime.\n", + "773 is prime.\n", + "787 is prime.\n", + "797 is prime.\n", + "809 is prime.\n", + "811 is prime.\n", + "821 is prime.\n", + "823 is prime.\n", + "827 is prime.\n", + "829 is prime.\n", + "839 is prime.\n", + "853 is prime.\n", + "857 is prime.\n", + "859 is prime.\n", + "863 is prime.\n", + "877" + ] }, { "output_type": "stream", "stream": "stdout", - "text": " is prime.\n881 is prime.\n883 is prime.\n887 is prime.\n907 is prime.\n911 is prime.\n919 is prime.\n929 is prime.\n937 is prime.\n941 is prime.\n947 is prime.\n953 is prime.\n967 is prime.\n971 is prime.\n977 is prime.\n983 is prime.\n991 is prime.\n997 is prime.\n" + "text": [ + " is prime.\n", + "881 is prime.\n", + "883 is prime.\n", + "887 is prime.\n", + "907 is prime.\n", + "911 is prime.\n", + "919 is prime.\n", + "929 is prime.\n", + "937 is prime.\n", + "941 is prime.\n", + "947 is prime.\n", + "953 is prime.\n", + "967 is prime.\n", + "971 is prime.\n", + "977 is prime.\n", + "983 is prime.\n", + "991 is prime.\n", + "997 is prime.\n" + ] } ], "prompt_number": 30 @@ -367,19 +1239,92 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 4.19, Page Number: 78

" + "source": [ + "

Example 4.19, Page Number: 78

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Magic Number program: Final improvement'''\n\nimport random\n\n#Variable declaration\nmagic = random.randint(0,100) #Number to be guessed\ni=1\nhigh=100\nlow=0\n\n#Function to play the magic number game\ndef play(m):\n low=0\n high=100\n for t in range(100):\n x = random.randint(low,high) #Number guessed by the user\n if x==m:\n print \"***Right***\"\n return\n else:\n if(x=1 and option<=3:\n break\n if option==1:\n magic=random.randint(0,100) #Number to be guessed\n elif option==2:\n play(magic) #Calls the function play\n elif option==3:\n print \"Goodbye\" \n break\n i+=1 #increments i such that the 3 options get selected sequentially\n", + "input": [ + "\n", + "\n", + "import random\n", + "\n", + "#Variable declaration\n", + "magic = random.randint(0,100) #Number to be guessed\n", + "i=1\n", + "high=100\n", + "low=0\n", + "\n", + "#Function to play the magic number game\n", + "def play(m):\n", + " low=0\n", + " high=100\n", + " for t in range(100):\n", + " x = random.randint(low,high) #Number guessed by the user\n", + " if x==m:\n", + " print \"***Right***\"\n", + " return\n", + " else:\n", + " if(x=1 and option<=3:\n", + " break\n", + " if option==1:\n", + " magic=random.randint(0,100) #Number to be guessed\n", + " elif option==2:\n", + " play(magic) #Calls the function play\n", + " elif option==3:\n", + " print \"Goodbye\" \n", + " break\n", + " i+=1 #increments i such that the 3 options get selected sequentially\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1.Get a new magic number.\n2.Play\n3.Quit\n1.Get a new magic number.\n2.Play\n3.Quit\nToo low.\nToo low.\nToo low.\nToo low.\nToo high.\nToo low.\nToo high.\nToo low.\nToo high.\nToo high.\nToo high.\nToo high.\nToo low.\n***Right***\n1.Get a new magic number.\n2.Play\n3.Quit\nGoodbye\n" + "text": [ + "1.Get a new magic number.\n", + "2.Play\n", + "3.Quit\n", + "1.Get a new magic number.\n", + "2.Play\n", + "3.Quit\n", + "Too low.\n", + "Too low.\n", + "Too low.\n", + "Too low.\n", + "Too high.\n", + "Too low.\n", + "Too high.\n", + "Too low.\n", + "Too high.\n", + "Too high.\n", + "Too high.\n", + "Too high.\n", + "Too low.\n", + "***Right***\n", + "1.Get a new magic number.\n", + "2.Play\n", + "3.Quit\n", + "Goodbye\n" + ] } ], "prompt_number": 6 @@ -387,7 +1332,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_5(1).ipynb b/C++_from_the_Ground/Chapter_5(1).ipynb index 4ae8f6f6..adbe1235 100644 --- a/C++_from_the_Ground/Chapter_5(1).ipynb +++ b/C++_from_the_Ground/Chapter_5(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 5" + "name": "", + "signature": "sha256:daa9c054e3b743c745cfe62599d80f03d625b2ef5131489390410210f502a5cb" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,40 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 5: Arrays ans Strings

" + "source": [ + "

Chapter 5: Arrays ans Strings

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.1, Page Number: 82

\n " + "source": [ + "

Example 5.1, Page Number: 82

\n", + " " + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Loads sample with the numbers 0 to 9'''\n\n#Variable declaration\nsample = range(10) #Declares an array [0,1,2,3,4,5,6,7,8,9]\n\n#Displays the array\nfor t in range(10):\n print sample[t],\n", + "input": [ + "\n", + "\n", + "#Variable declaration\n", + "sample = range(10) #Declares an array [0,1,2,3,4,5,6,7,8,9]\n", + "\n", + "#Displays the array\n", + "for t in range(10):\n", + " print sample[t],\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "0 1 2 3 4 5 6 7 8 9\n" + "text": [ + "0 1 2 3 4 5 6 7 8 9\n" + ] } ], "prompt_number": 1 @@ -35,19 +52,50 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.2, Page Number: 83

" + "source": [ + "

Example 5.2, Page Number: 83

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Maximum and Minimum value from a list'''\n\nimport random\n\n#Variable declaration\nlist = [] #List of integers\n\nfor i in range(10):\n list.append(random.randint(0,1000)) #randomely assigning integers\n \n#Finding the minimum value\nmin_value = list[0]\n\nfor i in range(10):\n if min_value>list[i]:\n min_value=list[i]\nprint \"minimum value: \",min_value #Result:Minimum value\n\n#Finding maximum value\nmax_value = list[0]\n\nfor i in range(10):\n if max_valuelist[i]:\n", + " min_value=list[i]\n", + "print \"minimum value: \",min_value #Result:Minimum value\n", + "\n", + "#Finding maximum value\n", + "max_value = list[0]\n", + "\n", + "for i in range(10):\n", + " if max_valueExample 5.3, Page Number: 85

" + "source": [ + "

Example 5.3, Page Number: 85

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Bubble Sort'''\n\nimport random\n\n#Variable declaration\nnums = []\nsize = 10\n\n#Initializing list with random numbers\nfor t in range(size):\n nums.append(random.randint(0,1000))\n\n#Displays original array\nprint \"Original array is: \"\nprint nums\n\n#Bubble Sort\nfor a in range(size):\n for b in xrange(size-1,a,-1):\n if nums[b-1]>nums[b]:\n t=nums[b-1]\n nums[b-1]=nums[b]\n nums[b] = t\n\n#Display sorted array\nprint \"Sorted array is: \"\nprint nums\n\n \n", + "input": [ + "\n", + "\n", + "\n", + "import random\n", + "\n", + "#Variable declaration\n", + "nums = []\n", + "size = 10\n", + "\n", + "#Initializing list with random numbers\n", + "for t in range(size):\n", + " nums.append(random.randint(0,1000))\n", + "\n", + "#Displays original array\n", + "print \"Original array is: \"\n", + "print nums\n", + "\n", + "#Bubble Sort\n", + "for a in range(size):\n", + " for b in xrange(size-1,a,-1):\n", + " if nums[b-1]>nums[b]:\n", + " t=nums[b-1]\n", + " nums[b-1]=nums[b]\n", + " nums[b] = t\n", + "\n", + "#Display sorted array\n", + "print \"Sorted array is: \"\n", + "print nums\n", + "\n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Original array is: \n[388, 661, 218, 595, 167, 46, 704, 140, 559, 428]\nSorted array is: \n[46, 140, 167, 218, 388, 428, 559, 595, 661, 704]\n" + "text": [ + "Original array is: \n", + "[388, 661, 218, 595, 167, 46, 704, 140, 559, 428]\n", + "Sorted array is: \n", + "[46, 140, 167, 218, 388, 428, 559, 595, 661, 704]\n" + ] } ], "prompt_number": 4 @@ -75,19 +161,31 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.4, Page Number: 87

" + "source": [ + "

Example 5.4, Page Number: 87

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Example for a string; Implementing cin and cout'''\n\n#Variable decleration\nstr = \"Hello\"\n\n#Result\nprint \"Here is your string:\",\nprint str\n", + "input": [ + "\n", + "#Variable decleration\n", + "str = \"Hello\"\n", + "\n", + "#Result\n", + "print \"Here is your string:\",\n", + "print str\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Here is your string: Hello\n" + "text": [ + "Here is your string: Hello\n" + ] } ], "prompt_number": 2 @@ -95,19 +193,36 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.5, Page Number: 88

" + "source": [ + "

Example 5.5, Page Number: 88

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Example for a string; Implementing gets for input'''\n\nprint \"Enter a string: \"\n\n#user input\nstr = \"Hello\"\n\n#Result\nprint \"Here is your string:\",\nprint str\n", + "input": [ + "\n", + "\n", + "\n", + "print \"Enter a string: \"\n", + "\n", + "#user input\n", + "str = \"Hello\"\n", + "\n", + "#Result\n", + "print \"Here is your string:\",\n", + "print str\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Enter a string: \nHere is your string: Hello\n" + "text": [ + "Enter a string: \n", + "Here is your string: Hello\n" + ] } ], "prompt_number": 1 @@ -115,19 +230,32 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.6, Page Number: 89

" + "source": [ + "

Example 5.6, Page Number: 89

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Implementing strcpy'''\n\n#Variable decleration\ns=str\nstr = s #copying s into str\n\n#Result\nprint str\n", + "input": [ + "\n", + "\n", + "#Variable decleration\n", + "s=str\n", + "str = s #copying s into str\n", + "\n", + "#Result\n", + "print str\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Hello\n" + "text": [ + "Hello\n" + ] } ], "prompt_number": 5 @@ -135,19 +263,35 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.7, Page Number: 89

" + "source": [ + "

Example 5.7, Page Number: 89

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Example for concatenation'''\n\n#Variable decleration\ns1 = \"Hello\"\ns2 = \" There\"\n\n#Concatenation\ns1+=s2\n\n#Result\nprint s1\n", + "input": [ + "\n", + "\n", + "#Variable decleration\n", + "s1 = \"Hello\"\n", + "s2 = \" There\"\n", + "\n", + "#Concatenation\n", + "s1+=s2\n", + "\n", + "#Result\n", + "print s1\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Hello There\n" + "text": [ + "Hello There\n" + ] } ], "prompt_number": 2 @@ -155,19 +299,44 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.8, Page Number: 90

" + "source": [ + "

Example 5.8, Page Number: 90

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n#Example for string compare: Password verification\n\n#Function for password verification\ndef password():\n print \"Enter password: \" #User input for password\n s= \"pass\"\n if s==\"password\":\n return True\n else:\n print \"Invalid password.\"\n return False\n\n#Result\nif password() :\n print \"Logged On.\"\nelse:\n print \"Access denied\"\n \n \n \n", + "input": [ + "\n", + "def password():\n", + " print \"Enter password: \" #User input for password\n", + " s= \"pass\"\n", + " if s==\"password\":\n", + " return True\n", + " else:\n", + " print \"Invalid password.\"\n", + " return False\n", + "\n", + "#Result\n", + "if password() :\n", + " print \"Logged On.\"\n", + "else:\n", + " print \"Access denied\"\n", + " \n", + " \n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Enter password: \nInvalid password.\nAccess denied\n" + "text": [ + "Enter password: \n", + "Invalid password.\n", + "Access denied\n" + ] } ], "prompt_number": 3 @@ -175,12 +344,25 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.9, Page Number: 91

" + "source": [ + "

Example 5.9, Page Number: 91

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Takes user input till strings match'''\n\nwhile True:\n s=raw_input(\"Enter a string: \") #User input of string;\n if s==\"quit\": #Sting comparison\n break\n \n \n\n \n \n", + "input": [ + "import string\n", + "\n", + " s=raw_input(\"Enter a string: \") #User input of string;\n", + " if s==\"quit\": #Sting comparison\n", + " break\n", + " \n", + " \n", + "\n", + " \n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ @@ -188,19 +370,25 @@ "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter a string: ddc\n" + "text": [ + "Enter a string: ddc\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter a string: hello\n" + "text": [ + "Enter a string: hello\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter a string: quit\n" + "text": [ + "Enter a string: quit\n" + ] } ], "prompt_number": 1 @@ -208,19 +396,32 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.10, Page Number: 91

" + "source": [ + "

Example 5.10, Page Number: 91

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''String length; Implementing strlen'''\n\n#Variable declaration\nstr = \"Hello\"\n\n#Result\nprint \"Length is: \",len(str)\n \n", + "input": [ + "\n", + "\n", + "#Variable declaration\n", + "str = \"Hello\"\n", + "\n", + "#Result\n", + "print \"Length is: \",len(str)\n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Length is: 5\n" + "text": [ + "Length is: 5\n" + ] } ], "prompt_number": 5 @@ -228,19 +429,34 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.11, Page Number: 92

" + "source": [ + "

Example 5.11, Page Number: 92

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Print a string backwards.'''\n\n#Taking a user input string\nstr = \"Hello World\"\n\n#Reversing a String\nrev = str[::-1]\n\n#Result\nprint rev\n\n", + "input": [ + "\n", + "\n", + "str = \"Hello World\"\n", + "\n", + "#Reversing a String\n", + "rev = str[::-1]\n", + "\n", + "#Result\n", + "print rev\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "dlroW olleH\n" + "text": [ + "dlroW olleH\n" + ] } ], "prompt_number": 6 @@ -248,19 +464,51 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.12, Page Number: 92

" + "source": [ + "

Example 5.12, Page Number: 92

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "\n'''Illustrating string functions'''\n\n#Variable declaration\ns1 = \"Hello\"\ns2 = \"there\"\n\n#Printing lengths\nprint \"lengths: \",len(s1),' ',len(s2)\n\n#Comparing\nif(s1==s2):\n print \"The strings are equal\"\nelse:\n print \"not equal\"\n\n#Concatenation\ns1+=s2\nprint s1\n\n\n#Copying\ns1=s2\n\n#Result\nprint s1,\"and\",s2,\" are now the same\"\n", + "input": [ + "\n", + "\n", + "s1 = \"Hello\"\n", + "s2 = \"there\"\n", + "\n", + "#Printing lengths\n", + "print \"lengths: \",len(s1),' ',len(s2)\n", + "\n", + "#Comparing\n", + "if(s1==s2):\n", + " print \"The strings are equal\"\n", + "else:\n", + " print \"not equal\"\n", + "\n", + "#Concatenation\n", + "s1+=s2\n", + "print s1\n", + "\n", + "\n", + "#Copying\n", + "s1=s2\n", + "\n", + "#Result\n", + "print s1,\"and\",s2,\" are now the same\"\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "lengths: 5 5\nnot equal\nHellothere\nthere and there are now the same\n" + "text": [ + "lengths: 5 5\n", + "not equal\n", + "Hellothere\n", + "there and there are now the same\n" + ] } ], "prompt_number": 9 @@ -268,19 +516,35 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.13, Page Number: 93

" + "source": [ + "

Example 5.13, Page Number: 93

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Convert a string to upper case'''\n\nimport string\n\n#Variable Initialization\nstr= \"this is a test\"\n\nstr=string.upper(str)\n\n#Result\nprint str\n ", + "input": [ + "\n", + "import string\n", + "\n", + "#Variable Initialization\n", + "str= \"this is a test\"\n", + "\n", + "str=string.upper(str)\n", + "\n", + "#Result\n", + "print str\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "THIS IS A TEST\n" + "text": [ + "THIS IS A TEST\n" + ] } ], "prompt_number": 12 @@ -288,19 +552,42 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.14, Page Number: 94

" + "source": [ + "

Example 5.14, Page Number: 94

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Load a two-dimensional array with values 1-12'''\n\n#Variable Initialization\narr=[] #The 2-D list\nnew=[] #The nested list\n\n#Initializing the 2-D array\nfor i in range(3):\n new=[]\n for j in range(4):\n new.append(i*4+j+1)\n arr.append(new)\n\n#Result\nfor i in range(3):\n for j in range(4):\n print arr[i][j],\n print", + "input": [ + "\n", + "arr=[] #The 2-D list\n", + "new=[] #The nested list\n", + "\n", + "#Initializing the 2-D array\n", + "for i in range(3):\n", + " new=[]\n", + " for j in range(4):\n", + " new.append(i*4+j+1)\n", + " arr.append(new)\n", + "\n", + "#Result\n", + "for i in range(3):\n", + " for j in range(4):\n", + " print arr[i][j],\n", + " print" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1 2 3 4\n5 6 7 8\n9 10 11 12\n" + "text": [ + "1 2 3 4\n", + "5 6 7 8\n", + "9 10 11 12\n" + ] } ], "prompt_number": 6 @@ -308,19 +595,38 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.15, Page Number: 98

" + "source": [ + "

Example 5.15, Page Number: 98

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Looks up a no. in an array n prints the corresponding square'''\n\n#Variabe Initialzation\nsqrs= [[1,1],[2,4],[3,9],[4,16],[5,25],\n [6,36],[7,49],[8,64],[9,81],[10,100]] #Array storing the squares\ni=6 #User input of number whose square is to be looked up\n\n#Search for the number\nfor j in range(10):\n if sqrs[j][0]==i:\n break\n \n#Result\nprint \"The square of \",i,\" is \", sqrs[j][1]", + "input": [ + "\n", + "\n", + "#Variabe Initialzation\n", + "sqrs= [[1,1],[2,4],[3,9],[4,16],[5,25],\n", + " [6,36],[7,49],[8,64],[9,81],[10,100]] #Array storing the squares\n", + "i=6 #User input of number whose square is to be looked up\n", + "\n", + "#Search for the number\n", + "for j in range(10):\n", + " if sqrs[j][0]==i:\n", + " break\n", + " \n", + "#Result\n", + "print \"The square of \",i,\" is \", sqrs[j][1]" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "The square of 6 is 36\n" + "text": [ + "The square of 6 is 36\n" + ] } ], "prompt_number": 15 @@ -328,19 +634,38 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.16, Page Number: 99

" + "source": [ + "

Example 5.16, Page Number: 99

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstating how local strings are initialized each time they are called'''\n\ndef f1():\n s=\"this is a test\" #initial s\n print s\n s=\"CHANGED\" #s is now changed \n print s\n\n#Calling the function twice\nf1()\nf1()", + "input": [ + "\n", + "\n", + "def f1():\n", + " s=\"this is a test\" #initial s\n", + " print s\n", + " s=\"CHANGED\" #s is now changed \n", + " print s\n", + "\n", + "#Calling the function twice\n", + "f1()\n", + "f1()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "this is a test\nCHANGED\nthis is a test\nCHANGED\n" + "text": [ + "this is a test\n", + "CHANGED\n", + "this is a test\n", + "CHANGED\n" + ] } ], "prompt_number": 17 @@ -348,19 +673,44 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.17, Page Number: 101

" + "source": [ + "

Example 5.17, Page Number: 101

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Enter and display strings'''\n\n#Variable decleration\ntext=[]\nstr=['eat','play','work'] #user input of strings\np=len(str)\n\nfor t in range(p):\n print t,\":\"\n text.append(str[t]) #Here, user input taken from the list\n \n#Result; redisplay the strings\nfor i in range(p):\n print text[i]\n ", + "input": [ + "\n", + "\n", + "#Variable decleration\n", + "text=[]\n", + "str=['eat','play','work'] #user input of strings\n", + "p=len(str)\n", + "\n", + "for t in range(p):\n", + " print t,\":\"\n", + " text.append(str[t]) #Here, user input taken from the list\n", + " \n", + "#Result; redisplay the strings\n", + "for i in range(p):\n", + " print text[i]\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "0 :\n1 :\n2 :\neat\nplay\nwork\n" + "text": [ + "0 :\n", + "1 :\n", + "2 :\n", + "eat\n", + "play\n", + "work\n" + ] } ], "prompt_number": 18 @@ -368,287 +718,460 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 5.18, Page Number: 103

" + "source": [ + "

Example 5.18, Page Number: 103

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A simple employee database program'''\nimport random \n\n#Variable decleration\nname=[] #this list holds employee names\nwage=[] #their phone numbers\nphone=[] #hours worked per week\nhours=[] #wage\nnum=0 #User choice\n\n#Menu \ndef menu():\n global num #All options are chosen one by one\n print \"0.Quit.\"\n print \"1.Enter information\"\n print \"2.Report information\"\n print \"Choose one: \"\n num=int(input())\n return num #Return users selction\n\n#Enter information\ndef enter():\n for i in range(10):\n n=raw_input(\"Enter your name: \")\n name.append(n)\n phone.append(int(input(\"Enter your phone number\")))\n hours.append(int(input(\"Enter number of hours worked: \")))\n wage.append(int(input(\"Enter wage: \")))\n\n#Display report\ndef report():\n p=len(name)\n for i in range(p):\n print name[i],' ',phone[i]\n print \"Pay for the week: \",wage[i]*hours[i]\n\n\nwhile True:\n ch=menu() #get selection\n if ch==0:\n break\n elif ch==1:\n enter()\n elif ch==2:\n report()\n else:\n print \"Try again.\"\n if ch==0:\n break\n", + "input": [ + "\n", + "import random \n", + "\n", + "#Variable decleration\n", + "name=[] #this list holds employee names\n", + "wage=[] #their phone numbers\n", + "phone=[] #hours worked per week\n", + "hours=[] #wage\n", + "num=0 #User choice\n", + "\n", + "#Menu \n", + "def menu():\n", + " global num #All options are chosen one by one\n", + " print \"0.Quit.\"\n", + " print \"1.Enter information\"\n", + " print \"2.Report information\"\n", + " print \"Choose one: \"\n", + " num=int(input())\n", + " return num #Return users selction\n", + "\n", + "#Enter information\n", + "def enter():\n", + " for i in range(10):\n", + " n=raw_input(\"Enter your name: \")\n", + " name.append(n)\n", + " phone.append(int(input(\"Enter your phone number\")))\n", + " hours.append(int(input(\"Enter number of hours worked: \")))\n", + " wage.append(int(input(\"Enter wage: \")))\n", + "\n", + "#Display report\n", + "def report():\n", + " p=len(name)\n", + " for i in range(p):\n", + " print name[i],' ',phone[i]\n", + " print \"Pay for the week: \",wage[i]*hours[i]\n", + "\n", + "\n", + "while True:\n", + " ch=menu() #get selection\n", + " if ch==0:\n", + " break\n", + " elif ch==1:\n", + " enter()\n", + " elif ch==2:\n", + " report()\n", + " else:\n", + " print \"Try again.\"\n", + " if ch==0:\n", + " break\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "0.Quit.\n1.Enter information\n2.Report information\nChoose one: \n" + "text": [ + "0.Quit.\n", + "1.Enter information\n", + "2.Report information\n", + "Choose one: \n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "1\n" + "text": [ + "1\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your name: Anny\n" + "text": [ + "Enter your name: Anny\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your phone number987654321\n" + "text": [ + "Enter your phone number987654321\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter number of hours worked: 10\n" + "text": [ + "Enter number of hours worked: 10\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter wage: 50\n" + "text": [ + "Enter wage: 50\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your name: Billy\n" + "text": [ + "Enter your name: Billy\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your phone number9456783652\n" + "text": [ + "Enter your phone number9456783652\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter number of hours worked: 10\n" + "text": [ + "Enter number of hours worked: 10\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter wage: 50\n" + "text": [ + "Enter wage: 50\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your name: Catherene\n" + "text": [ + "Enter your name: Catherene\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your phone number9476836578\n" + "text": [ + "Enter your phone number9476836578\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter number of hours worked: 10\n" + "text": [ + "Enter number of hours worked: 10\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter wage: 50\n" + "text": [ + "Enter wage: 50\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your name: Dolly\n" + "text": [ + "Enter your name: Dolly\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your phone number9831356748\n" + "text": [ + "Enter your phone number9831356748\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter number of hours worked: 15\n" + "text": [ + "Enter number of hours worked: 15\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter wage: 50\n" + "text": [ + "Enter wage: 50\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your name: Emily\n" + "text": [ + "Enter your name: Emily\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your phone number9576843721\n" + "text": [ + "Enter your phone number9576843721\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter number of hours worked: 15\n" + "text": [ + "Enter number of hours worked: 15\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter wage: 40\n" + "text": [ + "Enter wage: 40\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your name: Jack\n" + "text": [ + "Enter your name: Jack\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your phone number9485738567\n" + "text": [ + "Enter your phone number9485738567\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter number of hours worked: 10\n" + "text": [ + "Enter number of hours worked: 10\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter wage: 45\n" + "text": [ + "Enter wage: 45\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your name: Kevin\n" + "text": [ + "Enter your name: Kevin\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your phone number9345678923\n" + "text": [ + "Enter your phone number9345678923\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter number of hours worked: 10\n" + "text": [ + "Enter number of hours worked: 10\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter wage: 45\n" + "text": [ + "Enter wage: 45\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your name: Lily\n" + "text": [ + "Enter your name: Lily\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your phone number9345672831\n" + "text": [ + "Enter your phone number9345672831\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter number of hours worked: 10\n" + "text": [ + "Enter number of hours worked: 10\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter wage: 45\n" + "text": [ + "Enter wage: 45\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your name: Monica\n" + "text": [ + "Enter your name: Monica\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your phone number9475867483\n" + "text": [ + "Enter your phone number9475867483\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter number of hours worked: 10\n" + "text": [ + "Enter number of hours worked: 10\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter wage: 50\n" + "text": [ + "Enter wage: 50\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your name: Irene\n" + "text": [ + "Enter your name: Irene\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter your phone number5674356776\n" + "text": [ + "Enter your phone number5674356776\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter number of hours worked: 10\n" + "text": [ + "Enter number of hours worked: 10\n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "Enter wage: 20\n" + "text": [ + "Enter wage: 20\n" + ] }, { "output_type": "stream", "stream": "stdout", - "text": "0.Quit.\n1.Enter information\n2.Report information\nChoose one: \n" + "text": [ + "0.Quit.\n", + "1.Enter information\n", + "2.Report information\n", + "Choose one: \n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "2\n" + "text": [ + "2\n" + ] }, { "output_type": "stream", "stream": "stdout", - "text": "Anny 987654321\nPay for the week: 500\nBilly 9456783652\nPay for the week: 500\nCatherene 9476836578\nPay for the week: 500\nDolly 9831356748\nPay for the week: 750\nEmily 9576843721\nPay for the week: 600\nJack 9485738567\nPay for the week: 450\nKevin 9345678923\nPay for the week: 450\nLily 9345672831\nPay for the week: 450\nMonica 9475867483\nPay for the week: 500\nIrene 5674356776\nPay for the week: 200\n0.Quit.\n1.Enter information\n2.Report information\nChoose one: \n" + "text": [ + "Anny 987654321\n", + "Pay for the week: 500\n", + "Billy 9456783652\n", + "Pay for the week: 500\n", + "Catherene 9476836578\n", + "Pay for the week: 500\n", + "Dolly 9831356748\n", + "Pay for the week: 750\n", + "Emily 9576843721\n", + "Pay for the week: 600\n", + "Jack 9485738567\n", + "Pay for the week: 450\n", + "Kevin 9345678923\n", + "Pay for the week: 450\n", + "Lily 9345672831\n", + "Pay for the week: 450\n", + "Monica 9475867483\n", + "Pay for the week: 500\n", + "Irene 5674356776\n", + "Pay for the week: 200\n", + "0.Quit.\n", + "1.Enter information\n", + "2.Report information\n", + "Choose one: \n" + ] }, { "name": "stdout", "output_type": "stream", "stream": "stdout", - "text": "0\n" + "text": [ + "0\n" + ] } ], "prompt_number": 2 @@ -656,7 +1179,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_6(1).ipynb b/C++_from_the_Ground/Chapter_6(1).ipynb index 052075ed..5010922a 100644 --- a/C++_from_the_Ground/Chapter_6(1).ipynb +++ b/C++_from_the_Ground/Chapter_6(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 6" + "name": "", + "signature": "sha256:b382733cd221154cfe7c9ffe63477448084168d501d248c2b1d0c253ed011821" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,41 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 6: Pointers

" + "source": [ + "

Chapter 6: Pointers

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 6.1, Page Number: 107

" + "source": [ + "

Example 6.1, Page Number: 107

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing pointers in python'''\n\nfrom ctypes import *\n\nbalance =c_int(3200) #int variable\nbalptr=pointer(balance) #pointer to int\nvalue=balptr[0] #accessing the value using the pointer\n\n#Result\nprint \"balance: \",value \n\n", + "input": [ + "\n", + "from ctypes import *\n", + "\n", + "balance =c_int(3200) #int variable\n", + "balptr=pointer(balance) #pointer to int\n", + "value=balptr[0] #accessing the value using the pointer\n", + "\n", + "#Result\n", + "print \"balance: \",value \n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "balance: 3200\n" + "text": [ + "balance: 3200\n" + ] } ], "prompt_number": 1 @@ -35,19 +53,36 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 6.2, Page Number: 109

" + "source": [ + "

Example 6.2, Page Number: 109

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''This program will not create the problem as in C++ since \n python does'nt have specific data types'''\n\n#Variable declaration\nx=123.23\ny=c_double()\np=POINTER(c_int)\n\np=pointer(c_int(int(x))) #type case double to int\ny=p[0]\n\n#Result\nprint y", + "input": [ + "\n", + "\n", + "#Variable declaration\n", + "x=123.23\n", + "y=c_double()\n", + "p=POINTER(c_int)\n", + "\n", + "p=pointer(c_int(int(x))) #type case double to int\n", + "y=p[0]\n", + "\n", + "#Result\n", + "print y" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "123\n" + "text": [ + "123\n" + ] } ], "prompt_number": 2 @@ -55,19 +90,37 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 6.3, Page Number: 110

" + "source": [ + "

Example 6.3, Page Number: 110

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate usage of pointers'''\n\nfrom ctypes import *\n\n#Variable declaration\nnum=c_int() #declaring int\np=pointer(num) #pointer to int\n\np[0]=100\nprint num.value,\np[0]+=1\nprint num.value,\np[0]-=1\nprint num.value", + "input": [ + "\n", + "from ctypes import *\n", + "\n", + "#Variable declaration\n", + "num=c_int() #declaring int\n", + "p=pointer(num) #pointer to int\n", + "\n", + "p[0]=100\n", + "print num.value,\n", + "p[0]+=1\n", + "print num.value,\n", + "p[0]-=1\n", + "print num.value" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "100 101 100\n" + "text": [ + "100 101 100\n" + ] } ], "prompt_number": 2 @@ -75,19 +128,48 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 6.4, Page Number: 111

" + "source": [ + "

Example 6.4, Page Number: 111

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate pointer arithmetic'''\n\nfrom ctypes import *\n\n#Variable declaration\nj=c_int()\ng=c_double()\ni=pointer(j)\nf=pointer(g)\n\n\nfor x in range(10):\n print addressof(i.contents)+x,addressof(f.contents)+x\n \n ", + "input": [ + "\n", + "\n", + "from ctypes import *\n", + "\n", + "#Variable declaration\n", + "j=c_int()\n", + "g=c_double()\n", + "i=pointer(j)\n", + "f=pointer(g)\n", + "\n", + "\n", + "for x in range(10):\n", + " print addressof(i.contents)+x,addressof(f.contents)+x\n", + " \n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "84638480 84639248\n84638481 84639249\n84638482 84639250\n84638483 84639251\n84638484 84639252\n84638485 84639253\n84638486 84639254\n84638487 84639255\n84638488 84639256\n84638489 84639257\n" + "text": [ + "84638480 84639248\n", + "84638481 84639249\n", + "84638482 84639250\n", + "84638483 84639251\n", + "84638484 84639252\n", + "84638485 84639253\n", + "84638486 84639254\n", + "84638487 84639255\n", + "84638488 84639256\n", + "84638489 84639257\n" + ] } ], "prompt_number": 10 @@ -95,19 +177,45 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 6.5, Page Number: 114

" + "source": [ + "

Example 6.5, Page Number: 114

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Tokenizing program: pointer verion'''\n\nfrom ctypes import *\n\n#Variable declaration\nstr=\"This is a test\"\ntoken =\"\"\ni=0\n\n#Read a token at a time from the string\nwhile iExample 6.6, Page Number: 115

" + "source": [ + "

Example 6.6, Page Number: 115

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Tokenizing program: array-indexing verion'''\n\n#Variable declaration\nstr=\"This is a test\"\ni=0\n\n#Read a token at a time from the string\nwhile iExample 6.7, Page Number: 115

" + "source": [ + "

Example 6.7, Page Number: 115

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Converting to uppercase using pointer indexing'''\n\nimport string\n\nstr=c_char_p(\"hello tom\")\nq=\"\"\np=pointer(str) #put address of str into p\n \np[0]=string.upper(p[0])\n\n#Result\nprint p[0]", + "input": [ + "\n", + "\n", + "import string\n", + "\n", + "str=c_char_p(\"hello tom\")\n", + "q=\"\"\n", + "p=pointer(str) #put address of str into p\n", + " \n", + "p[0]=string.upper(p[0])\n", + "\n", + "#Result\n", + "print p[0]" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "HELLO TOM\n" + "text": [ + "HELLO TOM\n" + ] } ], "prompt_number": 15 @@ -155,19 +302,32 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 6.8, Page Number: 117

" + "source": [ + "

Example 6.8, Page Number: 117

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Pointers and string literals'''\n\n#Varible declaration\ns=\"Pointers are fun to use\"\n\n#Result\nprint s\n\n", + "input": [ + "\n", + "\n", + "#Varible declaration\n", + "s=\"Pointers are fun to use\"\n", + "\n", + "#Result\n", + "print s\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Pointers are fun to use\n" + "text": [ + "Pointers are fun to use\n" + ] } ], "prompt_number": 4 @@ -175,19 +335,38 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 6.9, Page Number: 118

" + "source": [ + "

Example 6.9, Page Number: 118

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An example of pointers and arrays'''\n\nfrom ctypes import *\n\n#Variable declaration\nnum=[]\n\n#User input\nfor i in range(10):\n num.append(i)\n \nstart=num #set start to the starting pointer \nfor i in range(10):\n print start[i],\n \n", + "input": [ + "\n", + "from ctypes import *\n", + "\n", + "#Variable declaration\n", + "num=[]\n", + "\n", + "#User input\n", + "for i in range(10):\n", + " num.append(i)\n", + " \n", + "start=num #set start to the starting pointer \n", + "for i in range(10):\n", + " print start[i],\n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "0 1 2 3 4 5 6 7 8 9\n" + "text": [ + "0 1 2 3 4 5 6 7 8 9\n" + ] } ], "prompt_number": 5 @@ -195,19 +374,43 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 6.10, Page Number: 119

" + "source": [ + "

Example 6.10, Page Number: 119

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A fortune cookie program'''\n\nimport random\n\nfortunes=[\"Soon, you will come into some money.\",\n \"A new love will enter your lifr. \",\n \"You will live long and prosper.\",\n \"Now is a good time to invest for the future.\",\n \"A close friend will ask for a favour.\"]\n\nprint \"To see your fortune, press a key: \"\n\n#Randomize the random number generator\nchance=random.randint(0,100)\nchance=chance%5\n\n#Result\nprint fortunes[chance]", + "input": [ + "\n", + "\n", + "import random\n", + "\n", + "fortunes=[\"Soon, you will come into some money.\",\n", + " \"A new love will enter your lifr. \",\n", + " \"You will live long and prosper.\",\n", + " \"Now is a good time to invest for the future.\",\n", + " \"A close friend will ask for a favour.\"]\n", + "\n", + "print \"To see your fortune, press a key: \"\n", + "\n", + "#Randomize the random number generator\n", + "chance=random.randint(0,100)\n", + "chance=chance%5\n", + "\n", + "#Result\n", + "print fortunes[chance]" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "To see your fortune, press a key: \nA close friend will ask for a favour.\n" + "text": [ + "To see your fortune, press a key: \n", + "A close friend will ask for a favour.\n" + ] } ], "prompt_number": 6 @@ -215,19 +418,41 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 6.11, Page Number: 120

" + "source": [ + "

Example 6.11, Page Number: 120

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A simple C++ keyword synopsis program'''\n\nkeyword=[[\"for\",\"for(initialization; condition; increment\"],\n [\"if\",\"if(condition) ... else ...\"],\n [\"switch\",\"switch(value) { case-list }\"],\n [\"while\",\"while(condition) ...\"],\n [\"\",\"\"]] #Terminates the list with nulls\n \n#User input \nprint \"Enter keyword: \"\nstr=\"for\" \n\nfor i in range(4):\n if str==keyword[i][0]:\n print keyword[i][1]\n \n", + "input": [ + "\n", + "\n", + "keyword=[[\"for\",\"for(initialization; condition; increment\"],\n", + " [\"if\",\"if(condition) ... else ...\"],\n", + " [\"switch\",\"switch(value) { case-list }\"],\n", + " [\"while\",\"while(condition) ...\"],\n", + " [\"\",\"\"]] #Terminates the list with nulls\n", + " \n", + "#User input \n", + "print \"Enter keyword: \"\n", + "str=\"for\" \n", + "\n", + "for i in range(4):\n", + " if str==keyword[i][0]:\n", + " print keyword[i][1]\n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Enter keyword: \nfor(initialization; condition; increment\n" + "text": [ + "Enter keyword: \n", + "for(initialization; condition; increment\n" + ] } ], "prompt_number": 7 @@ -235,19 +460,35 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 6.12, Page Number: 123

" + "source": [ + "

Example 6.12, Page Number: 123

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate multiple indirection'''\n\nfrom ctypes import *\n\n#Variable declaration\nx=c_int(10) #int variable\np=pointer(x) #pointer to int\nq=pointer(p) #pointer to a pointer\n\n#Result\nprint q[0][0] #accessing the value using a pointer to a pointer\n", + "input": [ + "\n", + "\n", + "from ctypes import *\n", + "\n", + "#Variable declaration\n", + "x=c_int(10) #int variable\n", + "p=pointer(x) #pointer to int\n", + "q=pointer(p) #pointer to a pointer\n", + "\n", + "#Result\n", + "print q[0][0] #accessing the value using a pointer to a pointer\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10\n" + "text": [ + "10\n" + ] } ], "prompt_number": 3 @@ -255,19 +496,49 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 6.13, Page Number: 126

" + "source": [ + "

Example 6.13, Page Number: 126

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Print ASCII value of each character of string using pointer'''\n\nfrom ctypes import *\n\n#Variable declaration\ns=c_char_p()\np1=pointer(s)\nx=0\n\nwhile True:\n print \"\\nEnter a string: \",\n if x==2:\n p1[0]=c_char_p(\"done\")\n else:\n p1[0]=c_char_p(\"Hello\")\n #print the ASCII values of each characcter\n for i in range(0,len(p1[0])):\n print ord(p1[0][i]),\n x+=1\n if p1[0]==\"done\":\n break\n \n\n", + "input": [ + "\n", + "from ctypes import *\n", + "\n", + "#Variable declaration\n", + "s=c_char_p()\n", + "p1=pointer(s)\n", + "x=0\n", + "\n", + "while True:\n", + " print \"\\nEnter a string: \",\n", + " if x==2:\n", + " p1[0]=c_char_p(\"done\")\n", + " else:\n", + " p1[0]=c_char_p(\"Hello\")\n", + " #print the ASCII values of each characcter\n", + " for i in range(0,len(p1[0])):\n", + " print ord(p1[0][i]),\n", + " x+=1\n", + " if p1[0]==\"done\":\n", + " break\n", + " \n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "\nEnter a string: 72 101 108 108 111 \nEnter a string: 72 101 108 108 111 \nEnter a string: 100 111 110 101\n" + "text": [ + "\n", + "Enter a string: 72 101 108 108 111 \n", + "Enter a string: 72 101 108 108 111 \n", + "Enter a string: 100 111 110 101\n" + ] } ], "prompt_number": 9 @@ -275,7 +546,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_7(1).ipynb b/C++_from_the_Ground/Chapter_7(1).ipynb index 4e347f41..28829c6d 100644 --- a/C++_from_the_Ground/Chapter_7(1).ipynb +++ b/C++_from_the_Ground/Chapter_7(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 7" + "name": "", + "signature": "sha256:9a6978851f88c0c91bde88465299d72777f3dae7854964b1cadad7b80092df72" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,46 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 7: Functions,Part One: The Fundamentals

" + "source": [ + "

Chapter 7: Functions,Part One: The Fundamentals

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.1, Page Number: 129

" + "source": [ + "

Example 7.1, Page Number: 129

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Example of a function'''\n\ndef f1():\n print \"Enter something: \"\n str= \"Hello\" #User-input\n print str\n \n#Variable decleration\nstr=\"This is str in main\"\n\nprint str\nf1() #function call\nprint str", + "input": [ + "\n", + "def f1():\n", + " print \"Enter something: \"\n", + " str= \"Hello\" #User-input\n", + " print str\n", + " \n", + "#Variable decleration\n", + "str=\"This is str in main\"\n", + "\n", + "print str\n", + "f1() #function call\n", + "print str" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "This is str in main\nEnter something: \nHello\nThis is str in main\n" + "text": [ + "This is str in main\n", + "Enter something: \n", + "Hello\n", + "This is str in main\n" + ] } ], "prompt_number": 1 @@ -35,19 +58,44 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.2, Page Number: 130

" + "source": [ + "

Example 7.2, Page Number: 130

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''This program illustrates how variables can be local to a block'''\n\n#Variable decleration\nchoice=0\n\nprint \"(1) add numbers or (2) concatenate strings?: \"\nchoice=2 #User Input taken as 2\n\nif choice==1:\n print \"Enter two numbers: \"\n a=5 #Variable decleration; User Input\n b=7\n print a+b #Result\nelse :\n print \"Enter two strings: \"\n s1=\"Hello\" #Variable decleration; User Input\n s2=\"World\"\n s1+=s2 #Concatenation\n print s1 #Result", + "input": [ + "\n", + "#Variable decleration\n", + "choice=0\n", + "\n", + "print \"(1) add numbers or (2) concatenate strings?: \"\n", + "choice=2 #User Input taken as 2\n", + "\n", + "if choice==1:\n", + " print \"Enter two numbers: \"\n", + " a=5 #Variable decleration; User Input\n", + " b=7\n", + " print a+b #Result\n", + "else :\n", + " print \"Enter two strings: \"\n", + " s1=\"Hello\" #Variable decleration; User Input\n", + " s2=\"World\"\n", + " s1+=s2 #Concatenation\n", + " print s1 #Result" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "(1) add numbers or (2) concatenate strings?: \nEnter two strings: \nHelloWorld\n" + "text": [ + "(1) add numbers or (2) concatenate strings?: \n", + "Enter two strings: \n", + "HelloWorld\n" + ] } ], "prompt_number": 1 @@ -55,19 +103,36 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.3, Page Number: 131

" + "source": [ + "

Example 7.3, Page Number: 131

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''This program illustrates the scope of variables'''\n\n'''This program will give same output for inner and outer i's\n because pyhton doesnt consider the if statment block as a scope'''\n#Variable decleration\ni=10\nj=100\n\nif j>0:\n i=None \n i= j/2\n print \"inner i: \",i #Result\n\nprint \"outer i: \",i #Result", + "input": [ + "\n", + "#Variable decleration\n", + "i=10\n", + "j=100\n", + "\n", + "if j>0:\n", + " i=None \n", + " i= j/2\n", + " print \"inner i: \",i #Result\n", + "\n", + "print \"outer i: \",i #Result" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "inner i: 50\nouter i: 50\n" + "text": [ + "inner i: 50\n", + "outer i: 50\n" + ] } ], "prompt_number": 2 @@ -75,19 +140,32 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.4, Page Number: 132

" + "source": [ + "

Example 7.4, Page Number: 132

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Example for declaring variables anywhere in the program'''\n\na=5 #Variable decleration; user input\n\nb=10 #declaration of another variable; user input\n\n#Result\nprint \"Product: \",a*b", + "input": [ + "\n", + "\n", + "a=5 #Variable decleration; user input\n", + "\n", + "b=10 #declaration of another variable; user input\n", + "\n", + "#Result\n", + "print \"Product: \",a*b" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Product: 50\n" + "text": [ + "Product: 50\n" + ] } ], "prompt_number": 4 @@ -95,19 +173,70 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.5, Page Number: 134

" + "source": [ + "

Example 7.5, Page Number: 134

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A simple addition drill program.'''\n\nimport random\n\n#Variable decleration\ncount=None\nnum_right=0\n\n#Function for the drill\ndef drill():\n #Generate two numbers between 0 and 99.\n a=random.randint(0,99)\n b=random.randint(0,99)\n #The user gets three tries to get it right.\n for count in range(3):\n print \"What is \",a,\" + \",b,\"? \"\n ans = random.randint(0,200) #user input\n if ans==a+b:\n print \"Right\"\n num_right+=1\n print \"You've used up all your tries.\"\n print \"The answer is \",a+b\n \n#Main function \nprint \"How many practice problems: \"\ncount=2 #User input taken as 2\nnum_right=0\nwhile True:\n drill()\n count-=1\n if(count==0):\n break\n \n#Result\nprint \"You got \",num_right,\" right. \" \n", + "input": [ + "\n", + "\n", + "import random\n", + "\n", + "#Variable decleration\n", + "count=None\n", + "num_right=0\n", + "\n", + "#Function for the drill\n", + "def drill():\n", + " #Generate two numbers between 0 and 99.\n", + " a=random.randint(0,99)\n", + " b=random.randint(0,99)\n", + " #The user gets three tries to get it right.\n", + " for count in range(3):\n", + " print \"What is \",a,\" + \",b,\"? \"\n", + " ans = random.randint(0,200) #user input\n", + " if ans==a+b:\n", + " print \"Right\"\n", + " num_right+=1\n", + " print \"You've used up all your tries.\"\n", + " print \"The answer is \",a+b\n", + " \n", + "#Main function \n", + "print \"How many practice problems: \"\n", + "count=2 #User input taken as 2\n", + "num_right=0\n", + "while True:\n", + " drill()\n", + " count-=1\n", + " if(count==0):\n", + " break\n", + " \n", + "#Result\n", + "print \"You got \",num_right,\" right. \" \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "How many practice problems: \nWhat is 9 + 89 ? \nWhat is 9 + 89 ? \nWhat is 9 + 89 ? \nYou've used up all your tries.\nThe answer is 98\nWhat is 85 + 98 ? \nWhat is 85 + 98 ? \nWhat is 85 + 98 ? \nYou've used up all your tries.\nThe answer is 183\nYou got 0 right. \n" + "text": [ + "How many practice problems: \n", + "What is 9 + 89 ? \n", + "What is 9 + 89 ? \n", + "What is 9 + 89 ? \n", + "You've used up all your tries.\n", + "The answer is 98\n", + "What is 85 + 98 ? \n", + "What is 85 + 98 ? \n", + "What is 85 + 98 ? \n", + "You've used up all your tries.\n", + "The answer is 183\n", + "You got 0 right. \n" + ] } ], "prompt_number": 5 @@ -115,19 +244,39 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.6, Page Number: 136

" + "source": [ + "

Example 7.6, Page Number: 136

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Pass by reference(pointer) to a function'''\n\nfrom ctypes import *\n\n#Function to change the reference value\ndef f(j):\n j[0]=100 #j is assigned 100\n\n#Variable decleration\ni=c_int(1)\np=pointer(i)\n\n#Calling the function\nf(p) \n\nprint i", + "input": [ + "\n", + "from ctypes import *\n", + "\n", + "#Function to change the reference value\n", + "def f(j):\n", + " j[0]=100 #j is assigned 100\n", + "\n", + "#Variable decleration\n", + "i=c_int(1)\n", + "p=pointer(i)\n", + "\n", + "#Calling the function\n", + "f(p) \n", + "\n", + "print i" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "c_long(100)\n" + "text": [ + "c_long(100)\n" + ] } ], "prompt_number": 5 @@ -135,19 +284,39 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.7, Page Number: 137

" + "source": [ + "

Example 7.7, Page Number: 137

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Pass by reference(pointer) to a function'''\n\nfrom ctypes import *\n\n#Function to change the reference value\ndef f(j):\n j[0]=100 #j is assigned 100\n\n#Variable decleration\ni=c_int(1)\np=pointer(i)\n\n#Calling the function\nf(p) \n\nprint i", + "input": [ + "\n", + "from ctypes import *\n", + "\n", + "#Function to change the reference value\n", + "def f(j):\n", + " j[0]=100 #j is assigned 100\n", + "\n", + "#Variable decleration\n", + "i=c_int(1)\n", + "p=pointer(i)\n", + "\n", + "#Calling the function\n", + "f(p) \n", + "\n", + "print i" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "c_long(100)\n" + "text": [ + "c_long(100)\n" + ] } ], "prompt_number": 6 @@ -155,19 +324,37 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.8, Page Number: 137

" + "source": [ + "

Example 7.8, Page Number: 137

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Calling function with a list(array)'''\n\n#function to print some nos.\ndef display(num):\n for i in range(10):\n print num[i],\n \n#Variable declaration\nt=[]\n\nfor i in range(10):\n t.append(i)\n#Pass list to a function\ndisplay(t)", + "input": [ + "\n", + "#function to print some nos.\n", + "def display(num):\n", + " for i in range(10):\n", + " print num[i],\n", + " \n", + "#Variable declaration\n", + "t=[]\n", + "\n", + "for i in range(10):\n", + " t.append(i)\n", + "#Pass list to a function\n", + "display(t)" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "0 1 2 3 4 5 6 7 8 9\n" + "text": [ + "0 1 2 3 4 5 6 7 8 9\n" + ] } ], "prompt_number": 7 @@ -175,19 +362,39 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.9, Page Number: 138

" + "source": [ + "

Example 7.9, Page Number: 138

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Displaying list without passing the list'''\n\n#Print some nos.\ndef display(num):\n print num,\n\n#Variable declaration\nt=[]\n\nfor i in range(10):\n t.append(i)\n \n#Printing without passing entire list\nfor i in range(10):\n display(t[i])", + "input": [ + "\n", + "\n", + "#Print some nos.\n", + "def display(num):\n", + " print num,\n", + "\n", + "#Variable declaration\n", + "t=[]\n", + "\n", + "for i in range(10):\n", + " t.append(i)\n", + " \n", + "#Printing without passing entire list\n", + "for i in range(10):\n", + " display(t[i])" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "0 1 2 3 4 5 6 7 8 9\n" + "text": [ + "0 1 2 3 4 5 6 7 8 9\n" + ] } ], "prompt_number": 8 @@ -195,19 +402,51 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.10, Page Number: 139

" + "source": [ + "

Example 7.10, Page Number: 139

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to convert each of the array element into its cube'''\n\n#Function to convert into cubes\ndef cube(n,num):\n num-=1\n while num:\n n[num]=n[num]*n[num]*n[num]\n num-=1\n\n#Variable declaration\nnums=[]\n\nfor i in range(10):\n nums.append(i+1)\n \nprint \"Original contents: \",\nfor i in range(10):\n print nums[i],\nprint\n\ncube(nums,10) #Compute cubes\n\n#Result\nprint \"Altered contents: \",\nfor i in range(10):\n print nums[i],", + "input": [ + "\n", + "\n", + "#Function to convert into cubes\n", + "def cube(n,num):\n", + " num-=1\n", + " while num:\n", + " n[num]=n[num]*n[num]*n[num]\n", + " num-=1\n", + "\n", + "#Variable declaration\n", + "nums=[]\n", + "\n", + "for i in range(10):\n", + " nums.append(i+1)\n", + " \n", + "print \"Original contents: \",\n", + "for i in range(10):\n", + " print nums[i],\n", + "print\n", + "\n", + "cube(nums,10) #Compute cubes\n", + "\n", + "#Result\n", + "print \"Altered contents: \",\n", + "for i in range(10):\n", + " print nums[i]," + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Original contents: 1 2 3 4 5 6 7 8 9 10\nAltered contents: 1 8 27 64 125 216 343 512 729 1000\n" + "text": [ + "Original contents: 1 2 3 4 5 6 7 8 9 10\n", + "Altered contents: 1 8 27 64 125 216 343 512 729 1000\n" + ] } ], "prompt_number": 10 @@ -215,19 +454,39 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.11, Page Number: 140

" + "source": [ + "

Example 7.11, Page Number: 140

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to convert a string to uppercase'''\n\nimport string\n\ndef stringupper(str):\n str=string.upper(str) #convert to uppercase\n return str\n\n#Variable declaration \nstr=\"this is a test\"\n\n#Calling the function\nstr=stringupper(str)\n\n#Result\nprint str", + "input": [ + "\n", + "import string\n", + "\n", + "def stringupper(str):\n", + " str=string.upper(str) #convert to uppercase\n", + " return str\n", + "\n", + "#Variable declaration \n", + "str=\"this is a test\"\n", + "\n", + "#Calling the function\n", + "str=stringupper(str)\n", + "\n", + "#Result\n", + "print str" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "THIS IS A TEST\n" + "text": [ + "THIS IS A TEST\n" + ] } ], "prompt_number": 7 @@ -235,19 +494,33 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.12, Page Number: 141

" + "source": [ + "

Example 7.12, Page Number: 141

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to find length of string'''\n\n#Function to fond length\ndef mystrlen(str):\n l=len(str)\n return l\n\n#Result\nprint \"Length of Hello There is: \",\nprint mystrlen(\"Hello There\")", + "input": [ + "\n", + "#Function to fond length\n", + "def mystrlen(str):\n", + " l=len(str)\n", + " return l\n", + "\n", + "#Result\n", + "print \"Length of Hello There is: \",\n", + "print mystrlen(\"Hello There\")" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Length of Hello There is: 11\n" + "text": [ + "Length of Hello There is: 11\n" + ] } ], "prompt_number": 11 @@ -255,19 +528,35 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.13, Page Number: 142

" + "source": [ + "

Example 7.13, Page Number: 142

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrates how to access command line arguments.'''\n#This wont work because we cannot provide command line arguments\n\nimport sys\n\ndef main():\n if len(sys.argv)!=2:\n print \"You forgot to type your name.\" #CHECK!!!!\n return\n #Result\n print \"Hello \",sys.argv[1]\n\nmain()", + "input": [ + "\n", + "import sys\n", + "\n", + "def main():\n", + " if len(sys.argv)!=2:\n", + " print \"You forgot to type your name.\" #CHECK!!!!\n", + " return\n", + " #Result\n", + " print \"Hello \",sys.argv[1]\n", + "\n", + "main()" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "You forgot to type your name.\n" + "text": [ + "You forgot to type your name.\n" + ] } ], "prompt_number": 2 @@ -275,19 +564,36 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.14, Page Number: 143

" + "source": [ + "

Example 7.14, Page Number: 143

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''The program prints all command line arguments '''\nimport sys\n\n#Result\nfor t in range(len(sys.argv)):\n i=0\n print sys.argv[t] ", + "input": [ + "'''The program prints all command line arguments '''\n", + "import sys\n", + "\n", + "#Result\n", + "for t in range(len(sys.argv)):\n", + " i=0\n", + " print sys.argv[t] " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "-c\n-f\nC:\\Users\\Anandi\\.ipython\\profile_default\\security\\kernel-6e851974-75ff-4911-bdf9-e089a03e5741.json\n--KernelApp.parent_appname='ipython-notebook'\n--interrupt=904\n--parent=876\n" + "text": [ + "-c\n", + "-f\n", + "C:\\Users\\Anandi\\.ipython\\profile_default\\security\\kernel-6e851974-75ff-4911-bdf9-e089a03e5741.json\n", + "--KernelApp.parent_appname='ipython-notebook'\n", + "--interrupt=904\n", + "--parent=876\n" + ] } ], "prompt_number": 2 @@ -295,19 +601,36 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.15, Page Number: 144

" + "source": [ + "

Example 7.15, Page Number: 144

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''This program concatenates the two string arguments and displays them'''\n\nimport sys\n\nif len(sys.argv)!=3:\n print \"usage: add num num\" \nelse :\n #Variable Decleration\n a=sys.argv[1]\n b=sys.argv[2]\n #Result\n print a+b\n \n", + "input": [ + "\n", + "import sys\n", + "\n", + "if len(sys.argv)!=3:\n", + " print \"usage: add num num\" \n", + "else :\n", + " #Variable Decleration\n", + " a=sys.argv[1]\n", + " b=sys.argv[2]\n", + " #Result\n", + " print a+b\n", + " \n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "usage: add num num\n" + "text": [ + "usage: add num num\n" + ] } ], "prompt_number": 3 @@ -315,19 +638,34 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.16, Page Number: 145

" + "source": [ + "

Example 7.16, Page Number: 145

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An example program'''\n\nimport string\n\n#Variable Decleration\ni=string.atoi(\"100\")\nj=string.atoi(\"100000\")\nk=string.atof(\"-0.123\")\n\n#Result\nprint i,\" \",j,\" \",k", + "input": [ + "\n", + "import string\n", + "\n", + "#Variable Decleration\n", + "i=string.atoi(\"100\")\n", + "j=string.atoi(\"100000\")\n", + "k=string.atof(\"-0.123\")\n", + "\n", + "#Result\n", + "print i,\" \",j,\" \",k" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "100 100000 -0.123\n" + "text": [ + "100 100000 -0.123\n" + ] } ], "prompt_number": 13 @@ -335,24 +673,39 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.17, Page Number: 147

" + "source": [ + "

Example 7.17, Page Number: 147

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Example to use the function abs()'''\n\n#Variable Decleration\ni=abs(-10)\n\n#Result\nprint abs(-23)\nabs(100)", + "input": [ + "\n", + "#Variable Decleration\n", + "i=abs(-10)\n", + "\n", + "#Result\n", + "print abs(-23)\n", + "abs(100)" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "23\n" + "text": [ + "23\n" + ] }, { + "metadata": {}, "output_type": "pyout", "prompt_number": 5, - "text": "100" + "text": [ + "100" + ] } ], "prompt_number": 5 @@ -360,19 +713,36 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.18, Page Number: 148

" + "source": [ + "

Example 7.18, Page Number: 148

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to find a substring'''\n\n#Return index of substring or -1 if not found.\ndef find_substr(sub,str):\n l=str.find(sub)\n return l\n\n#Variable decleration;Calling the function\nindex=find_substr(\"three\",\"one two three four\")\n\n#Result\nprint \"Index of three is \",index", + "input": [ + "\n", + "\n", + "#Return index of substring or -1 if not found.\n", + "def find_substr(sub,str):\n", + " l=str.find(sub)\n", + " return l\n", + "\n", + "#Variable decleration;Calling the function\n", + "index=find_substr(\"three\",\"one two three four\")\n", + "\n", + "#Result\n", + "print \"Index of three is \",index" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Index of three is 8\n" + "text": [ + "Index of three is 8\n" + ] } ], "prompt_number": 6 @@ -380,19 +750,35 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.19, Page Number: 149

" + "source": [ + "

Example 7.19, Page Number: 149

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to print a string vertically downward'''\n\nimport sys\n\ndef print_vertical(str):\n l=len(str)\n for i in range(l):\n print str[i],\n \nprint_vertical(sys.argv[1])\n ", + "input": [ + "\n", + "\n", + "import sys\n", + "\n", + "def print_vertical(str):\n", + " l=len(str)\n", + " for i in range(l):\n", + " print str[i],\n", + " \n", + "print_vertical(sys.argv[1])\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "- f\n" + "text": [ + "- f\n" + ] } ], "prompt_number": 14 @@ -400,19 +786,36 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.20, Page Number: 150

" + "source": [ + "

Example 7.20, Page Number: 150

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Rework find_substr() to return pointer'''\n\n#Return position of substring\ndef find_substr(sub,str):\n return str.find(sub)\n\n#Variable declaration\ns=\"one two three four\"\n\nsubstr = find_substr(\"three\",s)\n\n#Result\nprint \"substring found:\",s[substr:]\n", + "input": [ + "\n", + "#Return position of substring\n", + "def find_substr(sub,str):\n", + " return str.find(sub)\n", + "\n", + "#Variable declaration\n", + "s=\"one two three four\"\n", + "\n", + "substr = find_substr(\"three\",s)\n", + "\n", + "#Result\n", + "print \"substring found:\",s[substr:]\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "substring found: three four\n" + "text": [ + "substring found: three four\n" + ] } ], "prompt_number": 2 @@ -420,19 +823,48 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.21, Page Number: 154

" + "source": [ + "

Example 7.21, Page Number: 154

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to calculate factorial'''\n\n#Recursive version\ndef factr(n):\n if n==1:\n return 1\n answer=factr(n-1)*n\n return answer\n\n#Iterative version\ndef fact(n):\n answer=1\n for t in range(n):\n answer=answer*(t+1)\n return answer\n\n#Using recursion version\nprint \"4 factorial is \",factr(4)\n\n#Using iterative version\nprint \"4 factorial is \",fact(4)\n\n ", + "input": [ + "\n", + "\n", + "#Recursive version\n", + "def factr(n):\n", + " if n==1:\n", + " return 1\n", + " answer=factr(n-1)*n\n", + " return answer\n", + "\n", + "#Iterative version\n", + "def fact(n):\n", + " answer=1\n", + " for t in range(n):\n", + " answer=answer*(t+1)\n", + " return answer\n", + "\n", + "#Using recursion version\n", + "print \"4 factorial is \",factr(4)\n", + "\n", + "#Using iterative version\n", + "print \"4 factorial is \",fact(4)\n", + "\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "4 factorial is 24\n4 factorial is 24\n" + "text": [ + "4 factorial is 24\n", + "4 factorial is 24\n" + ] } ], "prompt_number": 3 @@ -440,19 +872,38 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 7.22, Page Number: 155

" + "source": [ + "

Example 7.22, Page Number: 155

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Print a string backwards using recursion'''\n\n#Reversing a string\ndef reverse(s):\n r = \"\"\n for c in s:\n r=c+r\n print r\n \n#VariabDecleration \nstr=\"this is a test\"\n\n#Calling function\nreverse(str)\n", + "input": [ + "\n", + "\n", + "#Reversing a string\n", + "def reverse(s):\n", + " r = \"\"\n", + " for c in s:\n", + " r=c+r\n", + " print r\n", + " \n", + "#VariabDecleration \n", + "str=\"this is a test\"\n", + "\n", + "#Calling function\n", + "reverse(str)\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "tset a si siht\n" + "text": [ + "tset a si siht\n" + ] } ], "prompt_number": 9 @@ -460,7 +911,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_8(1).ipynb b/C++_from_the_Ground/Chapter_8(1).ipynb index da5f88d2..3092696e 100644 --- a/C++_from_the_Ground/Chapter_8(1).ipynb +++ b/C++_from_the_Ground/Chapter_8(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 8" + "name": "", + "signature": "sha256:cea79a35a095750f932030d193b34f2136c703d7c2c54113f8e7917863a4322a" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,41 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 8: Functions,Part Two: References, Overloading, and Default Arguments

" + "source": [ + "

Chapter 8: Functions,Part Two: References, Overloading, and Default Arguments

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 8.1, Page Number: 158

" + "source": [ + "

Example 8.1, Page Number: 158

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Example for call by value'''\n\ndef sqr_it(x):\n x=x*x\n return x\n\n#Variable decleration\nt=10\n\n#Result; function calling\nprint sqr_it(t),' ',t\n", + "input": [ + "\n", + "def sqr_it(x):\n", + " x=x*x\n", + " return x\n", + "\n", + "#Variable decleration\n", + "t=10\n", + "\n", + "#Result; function calling\n", + "print sqr_it(t),' ',t\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "100 10\n" + "text": [ + "100 10\n" + ] } ], "prompt_number": 2 @@ -35,19 +53,47 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 8.2, Page Number: 159

" + "source": [ + "

Example 8.2, Page Number: 159

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to swap two values; implementing call by pointers'''\n\ndef swap(x,y):\n temp=x\n x=y\n y=temp\n return x, y\n\n#Variable decleration\ni=10\nj=20 \n\n#Initial values\nprint \"Initial values of i and j: \",\nprint i,' ',j\n\n#Calling function to swap\ni, j=swap(i,j)\n\n#Result\nprint \"Swapped values of i and j: \",\nprint i,' ',j", + "input": [ + "\n", + "\n", + "def swap(x,y):\n", + " temp=x\n", + " x=y\n", + " y=temp\n", + " return x, y\n", + "\n", + "#Variable decleration\n", + "i=10\n", + "j=20 \n", + "\n", + "#Initial values\n", + "print \"Initial values of i and j: \",\n", + "print i,' ',j\n", + "\n", + "#Calling function to swap\n", + "i, j=swap(i,j)\n", + "\n", + "#Result\n", + "print \"Swapped values of i and j: \",\n", + "print i,' ',j" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Initial values of i and j: 10 20\nSwapped values of i and j: 20 10\n" + "text": [ + "Initial values of i and j: 10 20\n", + "Swapped values of i and j: 20 10\n" + ] } ], "prompt_number": 1 @@ -55,19 +101,39 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 8.3, Page Number: 161

" + "source": [ + "

Example 8.3, Page Number: 161

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Example to implement call by reference in python'''\n\ndef f(i):\n i=10\n return i #Returning the value since the function cannot access the variables in the calling scope.\n\n#Variable Decleration\nval=1\n\nprint \"Old value for val: \",val\nval=f(val) #Function call\n\n#Result\nprint \"New value for val: \",val\n", + "input": [ + "\n", + "\n", + "def f(i):\n", + " i=10\n", + " return i #Returning the value since the function cannot access the variables in the calling scope.\n", + "\n", + "#Variable Decleration\n", + "val=1\n", + "\n", + "print \"Old value for val: \",val\n", + "val=f(val) #Function call\n", + "\n", + "#Result\n", + "print \"New value for val: \",val\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Old value for val: 1\nNew value for val: 10\n" + "text": [ + "Old value for val: 1\n", + "New value for val: 10\n" + ] } ], "prompt_number": 4 @@ -75,19 +141,48 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 8.4, Page Number: 162

" + "source": [ + "

Example 8.4, Page Number: 162

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Program to swap two values; implementing call by reference'''\n\ndef swap(i,j):\n temp=i[0]\n i[0]=j[0]\n j[0]=temp\n return i, j\n\n#Variable decleration\ni=[]\nj=[]\ni.append(10)\nj.append(20)\n\n#Initial values\nprint \"Initial values of i and j: \",\nprint i[0],' ',j[0]\n\n#Calling function to swap\ni, j=swap(i,j)\n\n#Result\nprint \"Swapped values of i and j: \",\nprint i[0],' ',j[0]", + "input": [ + "\n", + "def swap(i,j):\n", + " temp=i[0]\n", + " i[0]=j[0]\n", + " j[0]=temp\n", + " return i, j\n", + "\n", + "#Variable decleration\n", + "i=[]\n", + "j=[]\n", + "i.append(10)\n", + "j.append(20)\n", + "\n", + "#Initial values\n", + "print \"Initial values of i and j: \",\n", + "print i[0],' ',j[0]\n", + "\n", + "#Calling function to swap\n", + "i, j=swap(i,j)\n", + "\n", + "#Result\n", + "print \"Swapped values of i and j: \",\n", + "print i[0],' ',j[0]" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Initial values of i and j: 10 20\nSwapped values of i and j: 20 10\n" + "text": [ + "Initial values of i and j: 10 20\n", + "Swapped values of i and j: 20 10\n" + ] } ], "prompt_number": 2 @@ -95,19 +190,42 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 8.5, Page Number: 164

" + "source": [ + "

Example 8.5, Page Number: 164

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An example program'''\n#Since python cannot return references, the value is changed using the variable itself\n\n#Variable Decleration\nval = 100.0\n\ndef f():\n global val\n return val\n\n#Result\nprint val\n\nnewval=f() #function call\nprint newval\n\nval=99.1 #change val's value\nprint f() #print val's new value\n", + "input": [ + "\n", + "#Variable Decleration\n", + "val = 100.0\n", + "\n", + "def f():\n", + " global val\n", + " return val\n", + "\n", + "#Result\n", + "print val\n", + "\n", + "newval=f() #function call\n", + "print newval\n", + "\n", + "val=99.1 #change val's value\n", + "print f() #print val's new value\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "100.0\n100.0\n99.1\n" + "text": [ + "100.0\n", + "100.0\n", + "99.1\n" + ] } ], "prompt_number": 4 @@ -115,19 +233,47 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 8.6, Page Number: 166

" + "source": [ + "

Example 8.6, Page Number: 166

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Changing contents of a list'''\n#Since python cannot return references, the program has been modified.\n\n#Function definition\ndef change_it(i,n):\n global vals\n vals[i]=n\n\n#Variable Decleration\nvals=[1.1,2.2,3.3,4.4,5.5]\n\nprint \"Here are the original values: \",\nfor i in range(5):\n print vals[i],\nprint\n \n#Function call\nchange_it(1,5298.23)\nchange_it(3,-98.8)\n\n#Result\nprint \"Here are the changed values: \",\nfor i in range(5):\n print vals[i],", + "input": [ + "\n", + "#Function definition\n", + "def change_it(i,n):\n", + " global vals\n", + " vals[i]=n\n", + "\n", + "#Variable Decleration\n", + "vals=[1.1,2.2,3.3,4.4,5.5]\n", + "\n", + "print \"Here are the original values: \",\n", + "for i in range(5):\n", + " print vals[i],\n", + "print\n", + " \n", + "#Function call\n", + "change_it(1,5298.23)\n", + "change_it(3,-98.8)\n", + "\n", + "#Result\n", + "print \"Here are the changed values: \",\n", + "for i in range(5):\n", + " print vals[i]," + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Here are the original values: 1.1 2.2 3.3 4.4 5.5\nHere are the changed values: 1.1 5298.23 3.3 -98.8 5.5\n" + "text": [ + "Here are the original values: 1.1 2.2 3.3 4.4 5.5\n", + "Here are the changed values: 1.1 5298.23 3.3 -98.8 5.5\n" + ] } ], "prompt_number": 5 @@ -135,19 +281,56 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 8.7, Page Number: 167

" + "source": [ + "

Example 8.7, Page Number: 167

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing a simple safe array'''\n\n#Variable Decleration\nvals=[None]*10\nerror=-1\n\n#put values into the array\ndef put(i,n):\n global vals\n if i>=0 and i<10:\n vals[i]=n\n else:\n print \"Bounds Error!\"\n error=n\n\n#obtain a value from the array\ndef get(i):\n if i>=0 and i<10:\n return vals[i]\n else:\n print \"Bounds error!\"\n return -1\n \n#put values into the array\nput(0,10)\nput(1,20)\nput(9,30)\n\n#Result\nprint get(0),' ',get(1),' ',get(9),\n\n#now, intentionally generate an errer\nput(12,1)", + "input": [ + "\n", + "#Variable Decleration\n", + "vals=[None]*10\n", + "error=-1\n", + "\n", + "#put values into the array\n", + "def put(i,n):\n", + " global vals\n", + " if i>=0 and i<10:\n", + " vals[i]=n\n", + " else:\n", + " print \"Bounds Error!\"\n", + " error=n\n", + "\n", + "#obtain a value from the array\n", + "def get(i):\n", + " if i>=0 and i<10:\n", + " return vals[i]\n", + " else:\n", + " print \"Bounds error!\"\n", + " return -1\n", + " \n", + "#put values into the array\n", + "put(0,10)\n", + "put(1,20)\n", + "put(9,30)\n", + "\n", + "#Result\n", + "print get(0),' ',get(1),' ',get(9),\n", + "\n", + "#now, intentionally generate an errer\n", + "put(12,1)" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 20 30 Bounds Error!\n" + "text": [ + "10 20 30 Bounds Error!\n" + ] } ], "prompt_number": 6 @@ -155,19 +338,39 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 8.8, Page Number: 169

" + "source": [ + "

Example 8.8, Page Number: 169

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing references in pyhton'''\n\n#Variable Decleration\ni=[]\nj=i #independent reference\n\nj.append(10) #Here i and j are just references to [10]\n\nprint j[0],\" \",i[0] \n\nk=121\ni[0]=k #copies k's value into j[0] \n\n#Result\nprint j[0]", + "input": [ + "\n", + "#Variable Decleration\n", + "i=[]\n", + "j=i #independent reference\n", + "\n", + "j.append(10) #Here i and j are just references to [10]\n", + "\n", + "print j[0],\" \",i[0] \n", + "\n", + "k=121\n", + "i[0]=k #copies k's value into j[0] \n", + "\n", + "#Result\n", + "print j[0]" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 10\n121\n" + "text": [ + "10 10\n", + "121\n" + ] } ], "prompt_number": 7 @@ -175,19 +378,40 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 8.9, Page Number: 170

" + "source": [ + "

Example 8.9, Page Number: 170

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Function overloading in python'''\n#Overloading is not supported by python, hence it is implemented by default arguments.\n\ndef f(i,j=None):\n if j==None: \n if isinstance(i,int): #for 1st function\n print \"In f(int), i is \",i \n else: #for 3rd function\n print \"In f(double), k is \",i\n else: #for 2nd arguments\n print \"In f(int,int), i is \",i,\", j is \",j\n \n#calling function\nf(10)\nf(10,20)\nf(12.23)\n", + "input": [ + "\n", + "def f(i,j=None):\n", + " if j==None: \n", + " if isinstance(i,int): #for 1st function\n", + " print \"In f(int), i is \",i \n", + " else: #for 3rd function\n", + " print \"In f(double), k is \",i\n", + " else: #for 2nd arguments\n", + " print \"In f(int,int), i is \",i,\", j is \",j\n", + " \n", + "#calling function\n", + "f(10)\n", + "f(10,20)\n", + "f(12.23)\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "In f(int), i is 10\nIn f(int,int), i is 10 , j is 20\nIn f(double), k is 12.23\n" + "text": [ + "In f(int), i is 10\n", + "In f(int,int), i is 10 , j is 20\n", + "In f(double), k is 12.23\n" + ] } ], "prompt_number": 6 @@ -195,19 +419,53 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 8.10, Page Number: 171

" + "source": [ + "

Example 8.10, Page Number: 171

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Create an overloaded function of abs called myabs()'''\n\n#myabs() in three ways\ndef myabs(i):\n if isinstance(i,int): #first instance\n print \"Using integer myabs(): \",\n if i<0:\n return -i\n else:\n return i\n elif isinstance(i,float): #second instance\n print \"Using double myabs(): \",\n if(i<0.0):\n return -i\n else:\n return i\n elif isinstance(i,long): #third instance\n print \"Using long myabs(): \",\n if i<0:\n return -i\n else:\n return i\n\n#Result; calling the function \nprint myabs(-10)\nprint myabs(-11.0)\nprint myabs(-9L)\n\n", + "input": [ + "\n", + "#myabs() in three ways\n", + "def myabs(i):\n", + " if isinstance(i,int): #first instance\n", + " print \"Using integer myabs(): \",\n", + " if i<0:\n", + " return -i\n", + " else:\n", + " return i\n", + " elif isinstance(i,float): #second instance\n", + " print \"Using double myabs(): \",\n", + " if(i<0.0):\n", + " return -i\n", + " else:\n", + " return i\n", + " elif isinstance(i,long): #third instance\n", + " print \"Using long myabs(): \",\n", + " if i<0:\n", + " return -i\n", + " else:\n", + " return i\n", + "\n", + "#Result; calling the function \n", + "print myabs(-10)\n", + "print myabs(-11.0)\n", + "print myabs(-9L)\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Using integer myabs(): 10\nUsing double myabs(): 11.0\nUsing long myabs(): 9\n" + "text": [ + "Using integer myabs(): 10\n", + "Using double myabs(): 11.0\n", + "Using long myabs(): 9\n" + ] } ], "prompt_number": 8 @@ -215,19 +473,1149 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 8.11, Page Number: 174

" + "source": [ + "

Example 8.11, Page Number: 174

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''An example of default arguments'''\n\nimport os\n\ndef clrscr(size=25):\n while(size):\n print \"\"\n size-=1\n \nfor i in range(30):\n print i\n clrscr() #clears 25 lines\n\nfor i in range(30):\n print i\n clrscr(10) #clears 10 lines\n ", + "input": [ + "\n", + "import os\n", + "\n", + "def clrscr(size=25):\n", + " while(size):\n", + " print \"\"\n", + " size-=1\n", + " \n", + "for i in range(30):\n", + " print i\n", + " clrscr() #clears 25 lines\n", + "\n", + "for i in range(30):\n", + " print i\n", + " clrscr(10) #clears 10 lines\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "0\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n1\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n2\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n3\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n4\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n5\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n6\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n7\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n8\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n9\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n10\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n11\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n12\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n13\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n14\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n15\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n16\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n17\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n18\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n19\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n20\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n21\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n22\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n23\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n24\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n25\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n26\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n27\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n28\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n 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Example 8.12, Page Number: 176

" + "source": [ + "

Example 8.12, Page Number: 176

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''A customized version of strcat'''\n\n#Variable Decleration\nstr1 = \"This is a test\"\nstr2 = \"0123456789\"\n\n#function for concatenation\ndef mystrcat(s1,s2,l=-1):\n if l==-1:\n l=len(str2)\n s2=s2[:l] #truncates s2\n s1=s1+s2 #concatenates the 2 strings\n return s1\n\nstr1=mystrcat(str1,str2,5) #concatenate 5 chars\nprint str1\n\nstr1 = \"this is a test\" #reset str1\n\nstr1=mystrcat(str1, str2) #concatenate entire string\nprint str1", + "input": [ + "\n", + "#Variable Decleration\n", + "str1 = \"This is a test\"\n", + "str2 = \"0123456789\"\n", + "\n", + "#function for concatenation\n", + "def mystrcat(s1,s2,l=-1):\n", + " if l==-1:\n", + " l=len(str2)\n", + " s2=s2[:l] #truncates s2\n", + " s1=s1+s2 #concatenates the 2 strings\n", + " return s1\n", + "\n", + "str1=mystrcat(str1,str2,5) #concatenate 5 chars\n", + "print str1\n", + "\n", + "str1 = \"this is a test\" #reset str1\n", + "\n", + "str1=mystrcat(str1, str2) #concatenate entire string\n", + "print str1" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "This is a test01234\nthis is a test0123456789\n" + "text": [ + "This is a test01234\n", + "this is a test0123456789\n" + ] } ], "prompt_number": 9 @@ -255,19 +1669,30 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 8.13, Page Number: 177

" + "source": [ + "

Example 8.13, Page Number: 177

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Overload ambiguity'''\n#Here there wont be any ambiguity because float and double are the same.\n\ndef myfunc(i):\n return i\n \nprint myfunc(10.1),\nprint myfunc(10)", + "input": [ + "\n", + "def myfunc(i):\n", + " return i\n", + " \n", + "print myfunc(10.1),\n", + "print myfunc(10)" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10.1 10\n" + "text": [ + "10.1 10\n" + ] } ], "prompt_number": 2 @@ -275,19 +1700,36 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 8.14, Page Number: 178

" + "source": [ + "

Example 8.14, Page Number: 178

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Another ambiguity'''\n\nfrom ctypes import *\n\ndef myfunc(ch):\n if isinstance(ch,c_int):\n return chr(ch.value+1)\n elif isinstance(ch,c_uint):\n return chr(ch.value-1)\n \n \nprint myfunc(c_int(ord('c'))),\nprint myfunc(c_uint(88))", + "input": [ + "\n", + "from ctypes import *\n", + "\n", + "def myfunc(ch):\n", + " if isinstance(ch,c_int):\n", + " return chr(ch.value+1)\n", + " elif isinstance(ch,c_uint):\n", + " return chr(ch.value-1)\n", + " \n", + " \n", + "print myfunc(c_int(ord('c'))),\n", + "print myfunc(c_uint(88))" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": " d W\n" + "text": [ + " d W\n" + ] } ], "prompt_number": 5 @@ -295,19 +1737,34 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 8.15, Page Number: 179

" + "source": [ + "

Example 8.15, Page Number: 179

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''More ambiguity'''\n\ndef myfunc(i,j=1):\n if j==1:\n return i*j\n else:\n return i\n \n \nprint myfunc(4,5),\nprint myfunc(10)", + "input": [ + "\n", + "def myfunc(i,j=1):\n", + " if j==1:\n", + " return i*j\n", + " else:\n", + " return i\n", + " \n", + " \n", + "print myfunc(4,5),\n", + "print myfunc(10)" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "4 10\n" + "text": [ + "4 10\n" + ] } ], "prompt_number": 6 @@ -315,7 +1772,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] diff --git a/C++_from_the_Ground/Chapter_9(1).ipynb b/C++_from_the_Ground/Chapter_9(1).ipynb index b31c36a0..9e6e1729 100644 --- a/C++_from_the_Ground/Chapter_9(1).ipynb +++ b/C++_from_the_Ground/Chapter_9(1).ipynb @@ -1,6 +1,7 @@ { "metadata": { - "name": "Chapter 9" + "name": "", + "signature": "sha256:9ff1f12edc348acd1b1c3b16cc9a9556459332fb35a1337252165631b4cd82af" }, "nbformat": 3, "nbformat_minor": 0, @@ -10,24 +11,37 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Chapter 9: More Data Types and Operations

" + "source": [ + "

Chapter 9: More Data Types and Operations

" + ] }, { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.1, Page Number: 182

" + "source": [ + "

Example 9.1, Page Number: 182

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Printing a string'''\n#pyhton doesnt have constants, hence a normal object has been used\n\ndef code(str):\n print str\n\n#Calling function\ncode(\"this is a test\")", + "input": [ + "\n", + "def code(str):\n", + " print str\n", + "\n", + "#Calling function\n", + "code(\"this is a test\")" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "this is a test\n" + "text": [ + "this is a test\n" + ] } ], "prompt_number": 2 @@ -35,19 +49,34 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.2, Page Number: 183

" + "source": [ + "

Example 9.2, Page Number: 183

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing const references'''\n\ndef f(i):\n i=100\n print i\n \n#Variable declaration\nk=10\n\n#function call\nf(k)\n", + "input": [ + "\n", + "def f(i):\n", + " i=100\n", + " print i\n", + " \n", + "#Variable declaration\n", + "k=10\n", + "\n", + "#function call\n", + "f(k)\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "100\n" + "text": [ + "100\n" + ] } ], "prompt_number": 1 @@ -55,19 +84,32 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.3, Page Number: 187

" + "source": [ + "

Example 9.3, Page Number: 187

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementing extern in pyhton'''\n\n#Variable Declaration\nfirst=10 #global definition of first and last\nlast=20\n\n#Result\nprint first,last\n\n", + "input": [ + "\n", + "#Variable Declaration\n", + "first=10 #global definition of first and last\n", + "last=20\n", + "\n", + "#Result\n", + "print first,last\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 20\n" + "text": [ + "10 20\n" + ] } ], "prompt_number": 7 @@ -75,19 +117,55 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.4, Page Number: 188

" + "source": [ + "

Example 9.4, Page Number: 188

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Compute a running average of numbers entered by the user'''\n'''Implementing static variables in python'''\n\n#Variable declaration\nsum=0 \ncount=0\nnum=5 #Loop for user entries\n\n#compute a running average\ndef r_avg(i):\n global sum,count\n sum=sum+i\n count+=1\n return sum/count\n\n\nwhile True:\n print \"Enter numbers(-1 to quit): \"\n num-=1 #User input\n if not(num==-1):\n print \"Running average is: \",r_avg(num) #Result\n if num<0:\n break", + "input": [ + "\n", + "#Variable declaration\n", + "sum=0 \n", + "count=0\n", + "num=5 #Loop for user entries\n", + "\n", + "#compute a running average\n", + "def r_avg(i):\n", + " global sum,count\n", + " sum=sum+i\n", + " count+=1\n", + " return sum/count\n", + "\n", + "\n", + "while True:\n", + " print \"Enter numbers(-1 to quit): \"\n", + " num-=1 #User input\n", + " if not(num==-1):\n", + " print \"Running average is: \",r_avg(num) #Result\n", + " if num<0:\n", + " break" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Enter numbers(-1 to quit): \nRunning average is: 4\nEnter numbers(-1 to quit): \nRunning average is: 3\nEnter numbers(-1 to quit): \nRunning average is: 3\nEnter numbers(-1 to quit): \nRunning average is: 2\nEnter numbers(-1 to quit): \nRunning average is: 2\nEnter numbers(-1 to quit): \n" + "text": [ + "Enter numbers(-1 to quit): \n", + "Running average is: 4\n", + "Enter numbers(-1 to quit): \n", + "Running average is: 3\n", + "Enter numbers(-1 to quit): \n", + "Running average is: 3\n", + "Enter numbers(-1 to quit): \n", + "Running average is: 2\n", + "Enter numbers(-1 to quit): \n", + "Running average is: 2\n", + "Enter numbers(-1 to quit): \n" + ] } ], "prompt_number": 3 @@ -95,19 +173,75 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.5, Page Number: 189

" + "source": [ + "

Example 9.5, Page Number: 189

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Compute a running average of numbers entered by the user'''\n'''Implementing static variables in python'''\n\n#Variable declaration\nsum=0 \ncount=0\nnum=10 #Loop for user entries\n\n#user input given: 9,8,7,6,-2,4,3,2,1,-1\n\n#compute a running average\ndef r_avg(i):\n global sum,count\n sum=sum+i\n count+=1\n return sum/count\n\ndef reset():\n global sum,count\n sum=0\n count=0\n \nwhile True:\n print \"Enter numbers(-1 to quit, -2 to reset): \"\n num-=1 #User input\n if num==5:\n num=-2\n if num==-2: #for reset\n num=4\n reset()\n continue\n if not(num==-1):\n print \"Running average is: \",r_avg(num) #Result\n else:\n break", + "input": [ + "\n", + "\n", + "#Variable declaration\n", + "sum=0 \n", + "count=0\n", + "num=10 #Loop for user entries\n", + "\n", + "#user input given: 9,8,7,6,-2,4,3,2,1,-1\n", + "\n", + "#compute a running average\n", + "def r_avg(i):\n", + " global sum,count\n", + " sum=sum+i\n", + " count+=1\n", + " return sum/count\n", + "\n", + "def reset():\n", + " global sum,count\n", + " sum=0\n", + " count=0\n", + " \n", + "while True:\n", + " print \"Enter numbers(-1 to quit, -2 to reset): \"\n", + " num-=1 #User input\n", + " if num==5:\n", + " num=-2\n", + " if num==-2: #for reset\n", + " num=4\n", + " reset()\n", + " continue\n", + " if not(num==-1):\n", + " print \"Running average is: \",r_avg(num) #Result\n", + " else:\n", + " break" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Enter numbers(-1 to quit, -2 to reset): \nRunning average is: 9\nEnter numbers(-1 to quit, -2 to reset): \nRunning average is: 8\nEnter numbers(-1 to quit, -2 to reset): \nRunning average is: 8\nEnter numbers(-1 to quit, -2 to reset): \nRunning average is: 7\nEnter numbers(-1 to quit, -2 to reset): \nEnter numbers(-1 to quit, -2 to reset): \nRunning average is: 3\nEnter numbers(-1 to quit, -2 to reset): \nRunning average is: 2\nEnter numbers(-1 to quit, -2 to reset): \nRunning average is: 2\nEnter numbers(-1 to quit, -2 to reset): \nRunning average is: 1\nEnter numbers(-1 to quit, -2 to reset): \n" + "text": [ + "Enter numbers(-1 to quit, -2 to reset): \n", + "Running average is: 9\n", + "Enter numbers(-1 to quit, -2 to reset): \n", + "Running average is: 8\n", + "Enter numbers(-1 to quit, -2 to reset): \n", + "Running average is: 8\n", + "Enter numbers(-1 to quit, -2 to reset): \n", + "Running average is: 7\n", + "Enter numbers(-1 to quit, -2 to reset): \n", + "Enter numbers(-1 to quit, -2 to reset): \n", + "Running average is: 3\n", + "Enter numbers(-1 to quit, -2 to reset): \n", + "Running average is: 2\n", + "Enter numbers(-1 to quit, -2 to reset): \n", + "Running average is: 2\n", + "Enter numbers(-1 to quit, -2 to reset): \n", + "Running average is: 1\n", + "Enter numbers(-1 to quit, -2 to reset): \n" + ] } ], "prompt_number": 4 @@ -115,19 +249,42 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.6, Page Number: 196

" + "source": [ + "

Example 9.6, Page Number: 196

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of enumeration in python'''\n\n#Array of strings that correspond to the enumeration\nname=[\"Jonathan\",\"Golden Delicious\",\"Red Delicious\",\"Winesap\",\n \"Cortland\",\"McIntosh\"]\n\n#enumeration type\n(Jonathan,Golden_Delicious,Red_Delicious,Winesap,Cortland,McIntosh) = (0,1,2,3,4,5)\n\nfruit=Jonathan\nprint name[fruit]\n\nfruit = Winesap\nprint name[fruit]\n\nfruit = McIntosh\nprint name[fruit]", + "input": [ + "\n", + "#Array of strings that correspond to the enumeration\n", + "name=[\"Jonathan\",\"Golden Delicious\",\"Red Delicious\",\"Winesap\",\n", + " \"Cortland\",\"McIntosh\"]\n", + "\n", + "#enumeration type\n", + "(Jonathan,Golden_Delicious,Red_Delicious,Winesap,Cortland,McIntosh) = (0,1,2,3,4,5)\n", + "\n", + "fruit=Jonathan\n", + "print name[fruit]\n", + "\n", + "fruit = Winesap\n", + "print name[fruit]\n", + "\n", + "fruit = McIntosh\n", + "print name[fruit]" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Jonathan\nWinesap\nMcIntosh\n" + "text": [ + "Jonathan\n", + "Winesap\n", + "McIntosh\n" + ] } ], "prompt_number": 1 @@ -135,19 +292,45 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.7, Page Number: 198

" + "source": [ + "

Example 9.7, Page Number: 198

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Convert to uppercase letter'''\n\n#Variable declaration\nch='j' #User input\nwhile True:\n #This statement turns off the 6th but.\n c=chr(ord(ch)&223) #ch is now uppercase\n print c\n if c=='Q':\n break \n else:\n ch = chr(ord(ch)+1) #incrementing for different user inputs\n \n\n", + "input": [ + "\n", + "\n", + "#Variable declaration\n", + "ch='j' #User input\n", + "while True:\n", + " #This statement turns off the 6th but.\n", + " c=chr(ord(ch)&223) #ch is now uppercase\n", + " print c\n", + " if c=='Q':\n", + " break \n", + " else:\n", + " ch = chr(ord(ch)+1) #incrementing for different user inputs\n", + " \n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "J\nK\nL\nM\nN\nO\nP\nQ\n" + "text": [ + "J\n", + "K\n", + "L\n", + "M\n", + "N\n", + "O\n", + "P\n", + "Q\n" + ] } ], "prompt_number": 3 @@ -155,19 +338,44 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.8, Page Number: 200

" + "source": [ + "

Example 9.8, Page Number: 200

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Convert to lowercase letter'''\n\n#Variable declaration\nch='J' #User input\nwhile True:\n #This statement turns off the 6th but.\n c=chr(ord(ch)|32) #ch is now uppercase\n print c\n if c=='q':\n break \n else:\n ch = chr(ord(ch)+1) #incrementing for different user inputs\n ", + "input": [ + "\n", + "\n", + "#Variable declaration\n", + "ch='J' #User input\n", + "while True:\n", + " #This statement turns off the 6th but.\n", + " c=chr(ord(ch)|32) #ch is now uppercase\n", + " print c\n", + " if c=='q':\n", + " break \n", + " else:\n", + " ch = chr(ord(ch)+1) #incrementing for different user inputs\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "j\nk\nl\nm\nn\no\np\nq\n" + "text": [ + "j\n", + "k\n", + "l\n", + "m\n", + "n\n", + "o\n", + "p\n", + "q\n" + ] } ], "prompt_number": 4 @@ -175,19 +383,46 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.9, Page Number: 201

" + "source": [ + "

Example 9.9, Page Number: 201

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Display the bits within a byte'''\n\n#function to display the bits\ndef disp_binary(u):\n t=128\n while t:\n if u&t:\n print 1,\n else:\n print 0,\n t=t/2\n print \"\"\n \n#Variable declaration\nu=99 #User Input\n\nprint \"Here's the number in binary: \",\ndisp_binary(u)\n\nprint \"Here's the complement of th number: \",\ndisp_binary(~u)\n", + "input": [ + "\n", + "\n", + "#function to display the bits\n", + "def disp_binary(u):\n", + " t=128\n", + " while t:\n", + " if u&t:\n", + " print 1,\n", + " else:\n", + " print 0,\n", + " t=t/2\n", + " print \"\"\n", + " \n", + "#Variable declaration\n", + "u=99 #User Input\n", + "\n", + "print \"Here's the number in binary: \",\n", + "disp_binary(u)\n", + "\n", + "print \"Here's the complement of th number: \",\n", + "disp_binary(~u)\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Here's the number in binary: 0 1 1 0 0 0 1 1 \nHere's the complement of th number: 1 0 0 1 1 1 0 0 \n" + "text": [ + "Here's the number in binary: 0 1 1 0 0 0 1 1 \n", + "Here's the complement of th number: 1 0 0 1 1 1 0 0 \n" + ] } ], "prompt_number": 5 @@ -195,19 +430,68 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.10, Page Number: 202

" + "source": [ + "

Example 9.10, Page Number: 202

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate bitshifting'''\n\n#unction to display the bits within a byte\ndef disp_binary(u):\n t=128\n while t:\n if u&t:\n print 1,\n else:\n print 0,\n t=t/2\n print \"\"\n \n#Variable dclaration\ni=1\n\n#Result\nfor t in range(8):\n disp_binary(i)\n i=i<<1\n\nprint\"\\n\"\n\nfor t in range(8):\n i=i>>1\n disp_binary(i)\n ", + "input": [ + "\n", + "\n", + "#unction to display the bits within a byte\n", + "def disp_binary(u):\n", + " t=128\n", + " while t:\n", + " if u&t:\n", + " print 1,\n", + " else:\n", + " print 0,\n", + " t=t/2\n", + " print \"\"\n", + " \n", + "#Variable dclaration\n", + "i=1\n", + "\n", + "#Result\n", + "for t in range(8):\n", + " disp_binary(i)\n", + " i=i<<1\n", + "\n", + "print\"\\n\"\n", + "\n", + "for t in range(8):\n", + " i=i>>1\n", + " disp_binary(i)\n", + " " + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "0 0 0 0 0 0 0 1 \n0 0 0 0 0 0 1 0 \n0 0 0 0 0 1 0 0 \n0 0 0 0 1 0 0 0 \n0 0 0 1 0 0 0 0 \n0 0 1 0 0 0 0 0 \n0 1 0 0 0 0 0 0 \n1 0 0 0 0 0 0 0 \n\n\n1 0 0 0 0 0 0 0 \n0 1 0 0 0 0 0 0 \n0 0 1 0 0 0 0 0 \n0 0 0 1 0 0 0 0 \n0 0 0 0 1 0 0 0 \n0 0 0 0 0 1 0 0 \n0 0 0 0 0 0 1 0 \n0 0 0 0 0 0 0 1 \n" + "text": [ + "0 0 0 0 0 0 0 1 \n", + "0 0 0 0 0 0 1 0 \n", + "0 0 0 0 0 1 0 0 \n", + "0 0 0 0 1 0 0 0 \n", + "0 0 0 1 0 0 0 0 \n", + "0 0 1 0 0 0 0 0 \n", + "0 1 0 0 0 0 0 0 \n", + "1 0 0 0 0 0 0 0 \n", + "\n", + "\n", + "1 0 0 0 0 0 0 0 \n", + "0 1 0 0 0 0 0 0 \n", + "0 0 1 0 0 0 0 0 \n", + "0 0 0 1 0 0 0 0 \n", + "0 0 0 0 1 0 0 0 \n", + "0 0 0 0 0 1 0 0 \n", + "0 0 0 0 0 0 1 0 \n", + "0 0 0 0 0 0 0 1 \n" + ] } ], "prompt_number": 6 @@ -215,19 +499,43 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.11, Page Number: 204

" + "source": [ + "

Example 9.11, Page Number: 204

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''This program implements ? operator in python'''\n\ndef div_zero():\n print \"Cannot divide by zero.\"\n return 0\n \n#Variable declaration\ni=10 #User Input\nj=0\n\n#This statement prevents a divide by zero\nif j:\n result=i/j\nelse:\n result=div_zero()\n\n#Result\nprint \"Result: \",result", + "input": [ + "\n", + "\n", + "def div_zero():\n", + " print \"Cannot divide by zero.\"\n", + " return 0\n", + " \n", + "#Variable declaration\n", + "i=10 #User Input\n", + "j=0\n", + "\n", + "#This statement prevents a divide by zero\n", + "if j:\n", + " result=i/j\n", + "else:\n", + " result=div_zero()\n", + "\n", + "#Result\n", + "print \"Result: \",result" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "Cannot divide by zero.\nResult: 0\n" + "text": [ + "Cannot divide by zero.\n", + "Result: 0\n" + ] } ], "prompt_number": 7 @@ -235,19 +543,35 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.12, Page Number: 206

" + "source": [ + "

Example 9.12, Page Number: 206

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of the comma operator'''\n\n#Variable declaration\nj=10\ni=None\n\nj+=1\nj+100\ni=999+j\n\n#Result\nprint i", + "input": [ + "\n", + "#Variable declaration\n", + "j=10\n", + "i=None\n", + "\n", + "j+=1\n", + "j+100\n", + "i=999+j\n", + "\n", + "#Result\n", + "print i" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1010\n" + "text": [ + "1010\n" + ] } ], "prompt_number": 1 @@ -255,19 +579,36 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.13, Page Number: 207

" + "source": [ + "

Example 9.13, Page Number: 207

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Demonstrate sizeof'''\n\nfrom ctypes import *\n\n#Variable declaration\nch=c_char\ni=c_int\n\nprint sizeof(ch), #size of char\nprint sizeof(i), #size of int\nprint sizeof(c_float), #size of float\nprint sizeof(c_double) #size of double\n", + "input": [ + "\n", + "\n", + "from ctypes import *\n", + "\n", + "#Variable declaration\n", + "ch=c_char\n", + "i=c_int\n", + "\n", + "print sizeof(ch), #size of char\n", + "print sizeof(i), #size of int\n", + "print sizeof(c_float), #size of float\n", + "print sizeof(c_double) #size of double\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "1 4 4 8\n" + "text": [ + "1 4 4 8\n" + ] } ], "prompt_number": 2 @@ -275,19 +616,33 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.14, Page Number: 209

" + "source": [ + "

Example 9.14, Page Number: 209

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Example of pointers'''\n\nfrom ctypes import *\n\n#Variabke declaration \ni=c_int(20) #allocate memory for int\np=pointer(i) #assign a pointer to the memory\n\n#Result\nprint p[0] #proove that it works by displaying value\n", + "input": [ + "\n", + "from ctypes import *\n", + "\n", + "#Variabke declaration \n", + "i=c_int(20) #allocate memory for int\n", + "p=pointer(i) #assign a pointer to the memory\n", + "\n", + "#Result\n", + "print p[0] #proove that it works by displaying value\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "20\n" + "text": [ + "20\n" + ] } ], "prompt_number": 3 @@ -295,19 +650,33 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.15, Page Number: 210

" + "source": [ + "

Example 9.15, Page Number: 210

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Imlementation of dynamic initialization in python'''\n\nfrom ctypes import *\n\n#Variable declaration \ni=c_int(99) #initialize with 99\np=pointer(i) #assign a pointer to the value\n\n#Result\nprint p[0] #displays 99\n", + "input": [ + "\n", + "from ctypes import *\n", + "\n", + "#Variable declaration \n", + "i=c_int(99) #initialize with 99\n", + "p=pointer(i) #assign a pointer to the value\n", + "\n", + "#Result\n", + "print p[0] #displays 99\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "99\n" + "text": [ + "99\n" + ] } ], "prompt_number": 4 @@ -315,19 +684,38 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.16, Page Number: 211

" + "source": [ + "

Example 9.16, Page Number: 211

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Imlementation of dynamic initialization in python'''\n\nfrom ctypes import *\n\n#Variable declaration \ni=c_double(10) \np=pointer(i)\n\n#assign the values 100 to 109\nfor i in range(10):\n p[i]=100.00+i\n\n#display the contents of the array\nfor i in range(10):\n print p[i],\n", + "input": [ + "\n", + "from ctypes import *\n", + "\n", + "#Variable declaration \n", + "i=c_double(10) \n", + "p=pointer(i)\n", + "\n", + "#assign the values 100 to 109\n", + "for i in range(10):\n", + " p[i]=100.00+i\n", + "\n", + "#display the contents of the array\n", + "for i in range(10):\n", + " print p[i],\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0\n" + "text": [ + "100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0\n" + ] } ], "prompt_number": 5 @@ -335,19 +723,38 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.17, Page Number: 211

" + "source": [ + "

Example 9.17, Page Number: 211

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of malloc int python'''\n\n#Variable declaration\ni=c_int() \nj=c_double()\npi=pointer(i) #pointer to int\npj=pointer(j) #pointer to double\n\n#Assign values using pointers\npi[0]=10\npj[0]=100.123\n\n#Result\nprint pi[0],pj[0]\n\n", + "input": [ + "\n", + "#Variable declaration\n", + "i=c_int() \n", + "j=c_double()\n", + "pi=pointer(i) #pointer to int\n", + "pj=pointer(j) #pointer to double\n", + "\n", + "#Assign values using pointers\n", + "pi[0]=10\n", + "pj[0]=100.123\n", + "\n", + "#Result\n", + "print pi[0],pj[0]\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 100.123\n" + "text": [ + "10 100.123\n" + ] } ], "prompt_number": 6 @@ -355,19 +762,45 @@ { "cell_type": "markdown", "metadata": {}, - "source": "

Example 9.18, Page Number: 212

" + "source": [ + "

Example 9.18, Page Number: 212

" + ] }, { "cell_type": "code", "collapsed": false, - "input": "'''Implementation of dynamic memory allocation'''\nfrom ctypes import *\n\n#Variable declaration\ni=pointer(c_int())\nj=pointer(c_double())\n\n#Checking if i and j have been allocated memory addresses\nif not(id(i)):\n print \"Allocation Failure.\"\n \nif not(id(j)):\n print \"Allocation Failure.\" \n\ni[0]=10\nj[0]=100.123\n\n\n#Result\nprint i[0],j[0]\n\n", + "input": [ + "\n", + "from ctypes import *\n", + "\n", + "#Variable declaration\n", + "i=pointer(c_int())\n", + "j=pointer(c_double())\n", + "\n", + "#Checking if i and j have been allocated memory addresses\n", + "if not(id(i)):\n", + " print \"Allocation Failure.\"\n", + " \n", + "if not(id(j)):\n", + " print \"Allocation Failure.\" \n", + "\n", + "i[0]=10\n", + "j[0]=100.123\n", + "\n", + "\n", + "#Result\n", + "print i[0],j[0]\n", + "\n" + ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", - "text": "10 100.123\n" + "text": [ + "10 100.123\n" + ] } ], "prompt_number": 11 @@ -375,7 +808,7 @@ { "cell_type": "code", "collapsed": false, - "input": "", + "input": [], "language": "python", "metadata": {}, "outputs": [] -- cgit