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diff --git a/C++_from_the_Ground/Chapter_21(1).ipynb b/C++_from_the_Ground/Chapter_21(1).ipynb deleted file mode 100755 index 76345922..00000000 --- a/C++_from_the_Ground/Chapter_21(1).ipynb +++ /dev/null @@ -1,1187 +0,0 @@ -{ - "metadata": { - "name": "", - "signature": "sha256:1f6065242a1ea235eb4712b9ec147fb29625df8861301b52ad6c880a94467811" - }, - "nbformat": 3, - "nbformat_minor": 0, - "worksheets": [ - { - "cells": [ - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h1>Chapter 21: Introducing the Standard Template Library<h1>" - ] - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.1, Page Number:507<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "v=[] #Create a zero length vector\n", - " \n", - "print \"Size =\",len(v)\n", - " \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\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 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.2, Page Number:508<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "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\n", - "A B C D E F G H I J\n" - ] - } - ], - "prompt_number": 2 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.3, Page Number:509<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "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\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 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.4, Page Number:511<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "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", - "\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 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.5, Page Number:513<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \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\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 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.6, Page Number:517<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "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\n", - "Contents: A B C D E F G H I J \n", - "\n" - ] - } - ], - "prompt_number": 6 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.7, Page Number:518<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "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\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 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.8, Page Number:519<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "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", - "\n", - "Sorted Contents: 4 7 21 42 67 72 73 75 85 88\n" - ] - } - ], - "prompt_number": 9 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.9, Page Number:520<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "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", - "\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 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.10, Page Number:521<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "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.sum<o2.sum\n", - " def __gt__(self,o2):\n", - " return self.sum>o2.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\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 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.11, Page Number:527<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "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" - ] - } - ], - "prompt_number": 13 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.12, Page Number:528<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \n", - "def find(x,ch):\n", - " for p in x:\n", - " if p[0].get()==ch.get():\n", - " return p\n", - " return -1\n", - "\n", - "\n", - "class 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.str<b.str\n", - "\n", - "class meaning:\n", - " def __init__(self,s=\"\"):\n", - " self.str=s\n", - " def get(self):\n", - " return self.str\n", - "\n", - "dictionary=[]\n", - "\n", - "dictionary.append([word(\"house\"),meaning(\"A place of dwelling\")])\n", - "dictionary.append([word(\"keyboard\"),meaning(\"An input device\")])\n", - "dictionary.append([word(\"programming\"),meaning(\"The act of writing a program\")])\n", - "dictionary.append([word(\"STL\"),meaning(\"Standard Template Library\")])\n", - "\n", - "#given a word, find meaning\n", - "print \"Enter word:\"\n", - "str=\"house\" #User input\n", - "\n", - "p=find(dictionary,word(str))\n", - "\n", - "if not(p==-1):\n", - " print \"Definition:\",p[1].get()\n", - "else:\n", - " print \"Word not in the dictionary.\"" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "Enter word:\n", - "Definition: A place of dwelling\n" - ] - } - ], - "prompt_number": 14 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.13, Page Number:532<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "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 .\n", - "2 characters are p\n", - "7 characters are vowels.\n" - ] - } - ], - "prompt_number": 15 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.14, Page Number:534<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "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\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 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.15, Page Number:535<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \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\n", - "Reversed: 9 8 7 6 5 4 3 2 1 0\n" - ] - } - ], - "prompt_number": 17 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.16, Page Number:536<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \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\n", - "Transformed contents of x1: 0 1 4 9 16 25 36 49 64 81\n" - ] - } - ], - "prompt_number": 18 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.17, Page Number:540<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "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 \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 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.18, Page Number:542<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "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:\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 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.19, Page Number:543<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "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\n", - "Remaining string is: class makes string handling easy.\n" - ] - } - ], - "prompt_number": 22 - }, - { - "cell_type": "markdown", - "metadata": {}, - "source": [ - "<h3>Example 21.20, Page Number:545<h3>" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - " \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:\n", - "Definition: A place of dwelling\n" - ] - } - ], - "prompt_number": 23 - }, - { - "cell_type": "code", - "collapsed": false, - "input": [], - "language": "python", - "metadata": {}, - "outputs": [] - } - ], - "metadata": {} - } - ] -}
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