Removed duplicates

1 files changed, 475 insertions, 0 deletions

diff --git a/Programming_With_Java_A_Primer_by_E._Balagurusamy/chapter9.ipynb b/Programming_With_Java_A_Primer_by_E._Balagurusamy/chapter9.ipynb
new file mode 100755
index 00000000..af0b5898
--- /dev/null
+++ b/Programming_With_Java_A_Primer_by_E._Balagurusamy/chapter9.ipynb
@@ -0,0 +1,475 @@
+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:5c730697085cba47efcd5224cc57d70aca1160f9a5e192f67596eb53b4b5b4af"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 9: Arrays, Strings & Vectors"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "example 9.1, page no. 157"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "number = [55, 40, 80, 65, 71]\n",
+      "print \"Given List: \",\n",
+      "for num in number:\n",
+      "    print num,\n",
+      "number = sorted(number)[: : -1]\n",
+      "print \"\\nSorted List: \",\n",
+      "for num in number:\n",
+      "    print num,"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Given List:  55 40 80 65 71 \n",
+        "Sorted List:  80 71 65 55 40\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "example 9.2, page no. 160"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "rows = 20\n",
+      "columns = 20\n",
+      "product = [[0 for x in range(rows)] for x in xrange(columns)]\n",
+      "print \"Multiplication Table\"\n",
+      "for i in range(10, rows):\n",
+      "    for j in range(10, columns):\n",
+      "        product[i][j] = i*j\n",
+      "        print \" \", product[i][j],\n",
+      "    print \" \""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Multiplication Table\n",
+        "  100   110   120   130   140   150   160   170   180   190  \n",
+        "  110   121   132   143   154   165   176   187   198   209  \n",
+        "  120   132   144   156   168   180   192   204   216   228  \n",
+        "  130   143   156   169   182   195   208   221   234   247  \n",
+        "  140   154   168   182   196   210   224   238   252   266  \n",
+        "  150   165   180   195   210   225   240   255   270   285  \n",
+        "  160   176   192   208   224   240   256   272   288   304  \n",
+        "  170   187   204   221   238   255   272   289   306   323  \n",
+        "  180   198   216   234   252   270   288   306   324   342  \n",
+        "  190   209   228   247   266   285   304   323   342   361  \n"
+       ]
+      }
+     ],
+     "prompt_number": 17
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "example 9.3, page no. 163"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "name = [\"Madras\", \"Delhi\", \"Ahmedabad\", \"Calcutta\", \"Bombay\"]\n",
+      "name = sorted(name)\n",
+      "\n",
+      "for n in name:\n",
+      "    print n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Ahmedabad\n",
+        "Bombay\n",
+        "Calcutta\n",
+        "Delhi\n",
+        "Madras\n"
+       ]
+      }
+     ],
+     "prompt_number": 18
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "example 9.4, page no. 164"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "aString = \"Object language\"\n",
+      "print \"Original String : \", aString\n",
+      "print \"Length of String: \", len(aString)\n",
+      "for i in range(len(aString)):\n",
+      "    print \"Character at position: %d is %c\" %(i+1,aString[i])\n",
+      "\n",
+      "aString = aString.split(\" \")\n",
+      "aString.insert(1, \"-Oriented\") \n",
+      "aString = \" \".join(aString)\n",
+      "print \"Modified String: \", aString\n",
+      "aString = aString + \" improves security.\"\n",
+      "print \"Appended String: \", aString\n",
+      "\n",
+      "# Note : In python, string is immutable so we can not edit/update it."
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Original String :  Object language\n",
+        "Length of String:  15\n",
+        "Character at position: 1 is O\n",
+        "Character at position: 2 is b\n",
+        "Character at position: 3 is j\n",
+        "Character at position: 4 is e\n",
+        "Character at position: 5 is c\n",
+        "Character at position: 6 is t\n",
+        "Character at position: 7 is  \n",
+        "Character at position: 8 is l\n",
+        "Character at position: 9 is a\n",
+        "Character at position: 10 is n\n",
+        "Character at position: 11 is g\n",
+        "Character at position: 12 is u\n",
+        "Character at position: 13 is a\n",
+        "Character at position: 14 is g\n",
+        "Character at position: 15 is e\n",
+        "Modified String:  Object -Oriented language\n",
+        "Appended String:  Object -Oriented language improves security.\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "example 9.5, page no. 166"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "#vector is an array only in Python & commandline arguments cannot be taken in IPython Notebook\n",
+      "\n",
+      "v1 = []\n",
+      "v1.append(\"Ada\")\n",
+      "v1.append(\"BASIC\")\n",
+      "v1.append(\"COBOL\")\n",
+      "v1.append(\"C++\")\n",
+      "v1.append(\"FORTRAN\")\n",
+      "v1.append(\"Python\")\n",
+      "\n",
+      "print \"List of Languages: \"\n",
+      "for ele in v1:\n",
+      "    print ele"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "List of Languages: \n",
+        "Ada\n",
+        "BASIC\n",
+        "COBOL\n",
+        "C++\n",
+        "FORTRAN\n",
+        "Python\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "example 9.6, page no. 169"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\"\"\"\n",
+      "There is no wrapper class in Python.\n",
+      "\"\"\"\n",
+      "\n",
+      "principalAmount = float(raw_input(\"Enter Principal Amount: \"))\n",
+      "interestRate = float(raw_input(\"Enter Interest Rate: \"))\n",
+      "numYears = float(raw_input(\"Enter Number of Years: \"))\n",
+      "\n",
+      "def loan(p, r, n):\n",
+      "    year = 1\n",
+      "    my_sum = p\n",
+      "    while year<=n:\n",
+      "        my_sum = my_sum*(1+r)\n",
+      "        year += 1\n",
+      "    return my_sum\n",
+      "\n",
+      "def printline():\n",
+      "    for i in range(1, 30):\n",
+      "        print \"-\",\n",
+      "    print \"\"\n",
+      "\n",
+      "value = loan(principalAmount, interestRate, numYears)\n",
+      "printline()\n",
+      "print \"Final Value: \", round(value,2)\n",
+      "printline()"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter Principal Amount: 5000\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter Interest Rate: 0.15\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter Number of Years: 4\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "- - - - - - - - - - - - - - - - - - - - - - - - - - - - - \n",
+        "Final Value:  8745.03\n",
+        "- - - - - - - - - - - - - - - - - - - - - - - - - - - - - \n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "example 9.7, page no. 195"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\"\"\"\n",
+      "There is no inbuilt module to use stack as it is done in the book \"java.util.stack\". We will use normal lists as stack in Python\n",
+      "\"\"\"\n",
+      "\n",
+      "stack = []\n",
+      "stack.append(10)\n",
+      "stack.append(20)\n",
+      "stksum1 = stack.pop()\n",
+      "stksum2 = stack.pop()\n",
+      "stksum = stksum1 + stksum2\n",
+      "print \"The top most element from the stack is: \", stksum2\n",
+      "print \"The next top most element from the stack is: \", stksum1\n",
+      "print \"The sum of two elements from the stack is: \", stksum"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The top most element from the stack is:  10\n",
+        "The next top most element from the stack is:  20\n",
+        "The sum of two elements from the stack is:  30\n"
+       ]
+      }
+     ],
+     "prompt_number": 10
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "example 9.8, page no. 196"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\"\"\"\n",
+      "Enum is not supported by default in Python 2.X version. It has been backported to various versions of Python.\n",
+      "But, the package has to be installed seperately.\n",
+      "Using normal class here.\n",
+      "\"\"\"\n",
+      "\n",
+      "class WorkingDays:\n",
+      "    Sunday = 0\n",
+      "    Monday = 1\n",
+      "    Tuesday = 2\n",
+      "    Wednesday = 3\n",
+      "    Thursday = 4\n",
+      "    Friday = 5\n",
+      "    Saturday = 6\n",
+      "\n",
+      "def weekend(d):\n",
+      "    if d == WorkingDays.Sunday:\n",
+      "        print \"Value = Sunday is a Holiday\"\n",
+      "    elif d == WorkingDays.Monday:\n",
+      "        print \"Value = Monday is a working day\"\n",
+      "    elif d == WorkingDays.Tuesday:\n",
+      "        print \"Value = Tuesday is a working day\"\n",
+      "    elif d == WorkingDays.Wednesday:\n",
+      "        print \"Value = Wednesday is a working day\"\n",
+      "    elif d == WorkingDays.Thursday:\n",
+      "        print \"Value = Thursday is a working day\"    \n",
+      "    elif d == WorkingDays.Friday:\n",
+      "        print \"Value = Friday is a working day\"\n",
+      "    else:\n",
+      "        print \"Value = Saturday is a working day\"\n",
+      "\n",
+      "for i in range(WorkingDays.Sunday, WorkingDays.Saturday+1):\n",
+      "    weekend(i)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Value = Sunday is a Holiday\n",
+        "Value = Monday is a working day\n",
+        "Value = Tuesday is a working day\n",
+        "Value = Wednesday is a working day\n",
+        "Value = Thursday is a working day\n",
+        "Value = Friday is a working day\n",
+        "Value = Saturday is a working day\n"
+       ]
+      }
+     ],
+     "prompt_number": 18
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "example 9.9, page no. 199"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "\n",
+      "\"\"\"\n",
+      "There is no concept of annotations in Python\n",
+      "\"\"\"\n",
+      "\n",
+      "class MySingle:\n",
+      "    value = 0\n",
+      "    def __init__(self, x):\n",
+      "        self.value = 100\n",
+      "    def display(self):\n",
+      "         print \"The value is: \", self.value\n",
+      "\n",
+      "ob = MySingle(100)\n",
+      "try:\n",
+      "    ob.display()\n",
+      "except:\n",
+      "    print \"No such method found...\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The value is:  100\n"
+       ]
+      }
+     ],
+     "prompt_number": 50
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file