{
 "metadata": {
  "name": "Chapter11"
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "heading",
     "level": 1,
     "metadata": {},
     "source": "Chapter 11, Files"
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": "Example 1, Page Number:CP-277"
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": "# Program to create a text file\n\nfp = open(\"sample.txt\",\"w\") # open file in write mode\n\nprint \"Type the text and Press enter key at end.\"\nprint\nprint \"Computer Programming in C language is widely used for Science and Engineering applications\"\n# input data to file\nch = ['Computer ','Programming ','in ','C ','language ','is ','widely ','used ','for ','Science ','and ' ,'Engineering ','applications.']\nfor i in ch:\n    fp.write(i)\nfp.close()\n    ",
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": "Type the text and Press enter key at end.\n\nComputer Programming in C language is widely used for Science and Engineering applications\n"
      }
     ],
     "prompt_number": 1
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": "Example 2, Page Number:CP-278"
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": "# Program to read text file and count number of vowels\n\nfp = open(\"sample.txt\",\"r\") # open file in read mode\ncount = 0\nprint \"The Content of the file is:\"\n\nwhile (1):    \n    ch = fp.read(1)\n    if not ch:\n        break\n    print ch\n    # switch statements\n    if ch == \"A\" or ch == \"a\":  # case 'A' or 'a'\n        count = count + 1\n    elif ch == \"E\" or ch == \"e\": # case 'E' or 'e'\n        count = count + 1\n    elif ch == \"I\" or ch == \"i\": # case 'I' or 'i'\n        count = count + 1\n    elif ch == \"O\" or ch == \"o\": # case 'O' or 'o'\n        count = count + 1\n    elif ch == \"U\" or ch == \"u\": # case 'U' or 'u'\n        count = count + 1\n\n\n\nfp.close()    \nprint \"Number of vowels present =\",count    \n    ",
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": "The Content of the file is:\nC\no\nm\np\nu\nt\ne\nr\n \nP\nr\no\ng\nr\na\nm\nm\ni\nn\ng\n \ni\nn\n \nC\n \nl\na\nn\ng\nu\na\ng\ne\n \ni\ns\n \nw\ni\nd\ne\nl\ny\n \nu\ns\ne\nd\n \nf\no\nr\n \nS\nc\ni\ne\nn\nc\ne\n \na\nn\nd\n \nE\nn\ng\ni\nn\ne\ne\nr\ni\nn\ng\n \na\np\np\nl\ni\nc\na\nt\ni\no\nn\ns\n.\nNumber of vowels present = 31\n"
      }
     ],
     "prompt_number": 2
    }
   ],
   "metadata": {}
  }
 ]
}