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  {
   "cells": [
    {
     "cell_type": "heading",
     "level": 1,
     "metadata": {},
     "source": [
      "Chapter 11 : Structures"
     ]
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example: 1, Page No.: 5.81"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "#Print the student number, name and marks through accessing structure elements.\n",
      "\n",
      "#Defining Structure in class\n",
      "class std:\n",
      "    no=0\n",
      "    name = ''\n",
      "    m1 = m2 = m3 =0\n",
      "\n",
      "#assigning variable to structure class    \n",
      "s=std()\n",
      "\n",
      "#UserInput\n",
      "s.no=raw_input(\"Give Student Number: \")\n",
      "s.name=raw_input(\"Enter the Student Name: \")\n",
      "s.m1=input(\"Enter Student Mark1: \")\n",
      "s.m2=input(\"Enter Student Mark2: \")\n",
      "s.m3=input(\"Enter Student Mark3: \")\n",
      "\n",
      "total=avg=0.0\n",
      "\n",
      "total = (s.m1 + s.m2 + s.m3)\n",
      "avg='%.2f' %(total / 3)\n",
      "\n",
      "#Result\n",
      "print \"\\nThe Output is.... \\n\",s.no,s.name,total,avg"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "name": "stdout",
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Give Student Number: 1\n"
       ]
      },
      {
       "name": "stdout",
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Enter the Student Name: raja\n"
       ]
      },
      {
       "name": "stdout",
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Enter Student Mark1: 99\n"
       ]
      },
      {
       "name": "stdout",
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Enter Student Mark2: 97\n"
       ]
      },
      {
       "name": "stdout",
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Enter Student Mark3: 95\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "The Output is.... \n",
        "1 raja 291 97.00\n"
       ]
      }
     ],
     "prompt_number": 39
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example: 2, Page No. 5.83"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "#print a value from Structure.\n",
      "\n",
      "class struct:\n",
      "    a=b=0\n",
      "    \n",
      "x=struct()\n",
      "y=struct()\n",
      "\n",
      "x.a=29\n",
      "y=x\n",
      "\n",
      "#Result\n",
      "print \"The Value of a %d\"%y.a\n"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "The Value of a 29\n"
       ]
      }
     ],
     "prompt_number": 1
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example: 3, Page No.:5.84"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "#Program for User defined data type \n",
      "\n",
      "#There is no preprocessor directive in python\n",
      "D = 7\n",
      "\n",
      "#No typedef function in python\n",
      "wk = int(raw_input(\"Enter Weeks : \"))\n",
      "\n",
      "#Result\n",
      "print \"\\nNumber of Days = %d\"%(wk*D)\n",
      "\n",
      "\n"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "name": "stdout",
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Enter Weeks : 4\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        "Number of Days = 28\n"
       ]
      }
     ],
     "prompt_number": 55
    },
    {
     "cell_type": "heading",
     "level": 2,
     "metadata": {},
     "source": [
      "Example: 4, Page.No.:5.85"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "#Program to create user defined data type from structure\n",
      "\n",
      "\n",
      "class struct:\n",
      "    name=''\n",
      "    sex=''\n",
      "    age=0\n",
      "    \n",
      "\n",
      "\n",
      "candidate = [struct() for i in range(0,2)]\n",
      "\n",
      "for a in range(0,2):\n",
      "    candidate[a].name= raw_input(\"Name of the Employee: \")\n",
      "    candidate[a].sex= raw_input(\"Sex: \")\n",
      "    candidate[a].age= input(\"Age: \")\n",
      "\n",
      "#Result\n",
      "print \"\\n Name\\t Sex\\t Age\\n\"\n",
      "\n",
      "for a in range(0,2):\n",
      "    print \" %s\\t\"%(candidate[a].name),\"  %s\\t\"%(candidate[a].sex),\" %d\\n\"%(candidate[a].age)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "name": "stdout",
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Name of the Employee: venkat\n"
       ]
      },
      {
       "name": "stdout",
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Sex: m\n"
       ]
      },
      {
       "name": "stdout",
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Age: 25\n"
       ]
      },
      {
       "name": "stdout",
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Name of the Employee: geetha\n"
       ]
      },
      {
       "name": "stdout",
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Sex: f\n"
       ]
      },
      {
       "name": "stdout",
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "Age: 23\n"
       ]
      },
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "\n",
        " Name\t Sex\t Age\n",
        "\n",
        " venkat\t  m\t 25\n",
        "\n",
        " geetha\t  f\t 23\n",
        "\n"
       ]
      }
     ],
     "prompt_number": 68
    }
   ],
   "metadata": {}
  }
 ]
}