Chapter 8, Problem 20E

Explanation of Solution

Adding the accessor methods in “Rectangle” class:

//definition of "Rectangle" class

public class Rectangle

{

    //declare the required variables

    private int x;

    private int y;

    private int width;

    private int height;

    //definition of "contains" method

    public boolean contains(int x, int y)

    {

        // returns the coordinates

        return this.x <= x && x < this.x + width &&

        this.y <= y && y < this...