[Solved] COMP2396B Assignment 2- Shape, Rectangle, Square and Diamond

This assignment tests your understanding of basic inheritance in Java.You are asked to write a number of Java classes to model basic shapes: Shape, Rectangle, Square and Diamond. Rectangle and Diamond are the subclasses of Shape, and Square is the subclass of Rectangle.You are also required to write JavaDoc for all non-private classes and non-private class members.

Implementation

The Shape class:

Methods Shape()

Constructor, create an empty shape. A shape is typically a 2D array of pixels (boolean values).

String toString()

Return a drawing of the shape as a String. Each pixel should be represented by the character * and each empty space should be represented by the space character. Newlines are represented by newline character
.

int getArea()

Return the area, i.e., the number of pixels in the shape.

Shape intersect(Shape s)

Return a new Shape object representing the intersection of this Shape object and s.

Shape union(Shape s)

Return a new Shape object representing the union of this Shape object and s.

The Rectangle class, a subclass of the Shape class:

Methods

Rectangle(int width, int height)

Constructor, create a rectangle with the specific width and height. For example, if width = 5 and height = 3, a drawing of this shape will look like this:

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The Diamond class, a subclass of the Shape class:

Methods

Diamond(int size)

Constructor, create a diamond shape with the specific size. For example, if size = 3, a drawing of this shape will look like this (the empty area is represented by space characters and each newline is represented by the newline character
.):

The Square class, a subclass of the Rectangle class:

Methods

Square(int size)

Constructor, create a square with the specific size. For example, if size = 3, a drawing of this shape will look like this:

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