CS 127: Data Structures

Assignment 3: Shape Inheritance

Assigned on Friday, 9/28/01
Due on Wednesday, 10/3/01 at 5 PM.

Overview

This project will give you a chance to practice creating classes using inheritance. Check out this program: shapesbad.cpp . This program asks a user to select a shape of interest, namely a circle, rectangle or square. It gets the dimensions from the user, then computes the area and perimeter and displays it to the screen. The code for the individual classes can be found at the links below:

Look now at the program shapesgood.cpp. Look how much cleaner it is when inheritance is used! Your mission is to create a single class called Shape, and derive the Circle, Rectangle, and Square classes from it using inheritance. You should do so in such a way so that without modification of shapesgood.cpp, your code can be compiled as follows:

g++ Shape.cpp shapesgood.cpp -o shapesgood

You should submit only the files Shape.h and Shape.cpp. The Shape.h and Shape.cpp files should contain the code for the class Shape as well as for the derived classes Circle, Rectangle, and Square.

Good luck!