Shape.java

Abstract class called Shape

declare public member variables

width of type double

height of type double

declare and implement a method called setSize

2 parameters: width, height of type double

This method sets/initializes the member variables width and height

declare an abstract method called getArea

The return type of this method should be double

No parameters

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Rectangle.java

Rectangle class inherits members of Shape class

This class has only one method called getArea

getArea method should return the area of a rectangle

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Triangle.java

Triangle class inherits members of Shape class

This class has only one method called getArea

getArea method should return the area of a triangle

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Driver.java

main method

Declare/init a new object of type Triangle

Declare/init a new object of type Rectangle

Declare an object of type Shape and assign it to the the triangle object

Using the Shape object, call setSize method providing arguments width/height

Reassign the shape object to the rectangle object

Using the Shape object, call setSize method providing arguments width/height

Using the triangle object, print out the area of the triangle by calling getArea()

Using the rectangle object, print out the area of the rectangle by calling getArea()