{ "metadata": { "name": "", "signature": "sha256:995bd55986cb75ede34cceda310ffd2c9f00a5c6e6a22d85c294456d1db3fd3f" }, "nbformat": 3, "nbformat_minor": 0, "worksheets": [ { "cells": [ { "cell_type": "heading", "level": 1, "metadata": {}, "source": [ "Chapter 10: Interfaces: Multiple Inheritance" ] }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "example 10.1, page no. page no. 184" ] }, { "cell_type": "code", "collapsed": false, "input": [ "\n", "\"\"\"\n", "There are no interfaces in Python. We will use normal classes instead\n", "\"\"\"\n", "\n", "class Rectangle:\n", " def compute(self, x, y):\n", " return x*y\n", "\n", "class Circle:\n", " pi = 3.14\n", " def compute(self, x, y):\n", " return self.pi*x*x\n", "\n", "rect = Rectangle()\n", "cir = Circle()\n", "print \"Area of rectangle: \", rect.compute(10, 20)\n", "print \"Area of circle: \", cir.compute(10, 0)" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Area of rectangle: 200\n", "Area of circle: 314.0\n" ] } ], "prompt_number": 1 }, { "cell_type": "heading", "level": 2, "metadata": {}, "source": [ "example 10.2, page no. 211" ] }, { "cell_type": "code", "collapsed": false, "input": [ "\n", "class Student(object):\n", " rollNumber = 0\n", " def getNumber(self, n):\n", " self.rollNumber = n\n", " def putNumber(self):\n", " print \"Roll No.: \", self.rollNumber\n", "\n", "class Test(Student, object):\n", " part1 = 0.0\n", " part2 = 0.0\n", " def getMarks(self, m1, m2):\n", " self.part1 = m1\n", " self.part2 = m2\n", " def putMarks(self):\n", " print \"Marks Obtained\"\n", " print \"Part 1 = \", self.part1\n", " print \"Part 2 = \", self.part2\n", "\n", "class Results(Test):\n", " sportWt = 6.0\n", " def putWt(self):\n", " print \"Sports Wt: \", self.sportWt\n", " def display(self):\n", " total = self.part1 + self.part2 + self.sportWt\n", " self.putNumber()\n", " self.putMarks()\n", " self.putWt()\n", " print \"Total Score: \", total\n", "\n", "student1 = Results()\n", "student1.getNumber(1234)\n", "student1.getMarks(27.5, 33.0)\n", "student1.display()" ], "language": "python", "metadata": {}, "outputs": [ { "output_type": "stream", "stream": "stdout", "text": [ "Roll No.: 1234\n", "Marks Obtained\n", "Part 1 = 27.5\n", "Part 2 = 33.0\n", "Sports Wt: 6.0\n", "Total Score: 66.5\n" ] } ], "prompt_number": 9 } ], "metadata": {} } ] }