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#
Authors:
Stuart Reges, Marty Stepp
Chapter:
Classes
Exercise:
Exercises
Question:15 | ISBN:9780136091813 | Edition: 2

Question

Add the following methods to your Rectangle class:
public boolean contains(int x, int y)
public boolean contains(Point p)

Returns whether the given Point or coordinates lie inside the bounds of this Rectangle.

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Answer

// package classes;

public class Rectangle {

	int x;
	int y;
	int width;
	int height;
	Point point;

    // initialize the constructor with point, width and height
	public Rectangle(Point p, int width, int height) {

		this.point = p;
		this.width = width;
		this.height = height;
	}


    // one more constructor with x and y values and height and width
	public Rectangle(int x, int y, int width, int height) {
		this.x = x;
		this.y = y;
		this.width = width;
		this.height = height;

	}


public boolean contains(int x, int y) {
		return this.x <= x && x <= this.x + width && this.y <= y && y <= this.y + height;
	}

	public boolean contains(Point p) {
		return contains(p.getX(), p.getY());
	}

    // getter and setters
	public int getX() {
		return x;
	}

	public void setX(int x) {
		this.x = x;
	}

	public int getY() {
		return y;
	}

	public void setY(int y) {
		this.y = y;
	}

	public int getWidth() {
		return width;
	}

	public void setWidth(int width) {
		this.width = width;
	}

	public int getHeight() {
		return height;
	}

	public void setHeight(int height) {
		this.height = height;
	}

     // override the toStrinng to print our rectangle values
	@Override
	public String toString() {

		return "[Rectangle x = " + point.x + ", y = " + point.y + ", width = " + width + ", height =  " + height + "]";

	}

	public static void main(String[] args) {
		Point pnt = new Point(4, 3);
		Rectangle rec = new Rectangle(pnt, 8, 5);
		int x1 = 5;
		int y1 = 6;

		System.out.println("New Rectangle: " + rec);
		System.out.println("does New Rectangle contains " + pnt + ": " + rec.contains(pnt));

		System.out.println("New Rectangle contains (" + x1 + "," + y1 + "):" + rec.contains(x1, y1));

	}

}

Output:

New Rectangle: [Rectangle x = 4, y = 3, width = 8, height =  5]
does New Rectangle contains (4,3): true
New Rectangle contains (5,6):false

 

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