public class Rectangle {
private int ix1, iy1, ix2, iy2;

public Rectangle() {}

public Rectangle(int x1, int y1, int x2, int y2) {
	ix1 = x1; iy1 = y1; ix2 = x2; iy2 = y2;
}

public int getX1() {
	return ix1;
}
public int getY1() {
	return iy1;
}
public int getX2() {
	return ix2;
}
public int getY2() {
	return iy2;
}

public int calcArea() {
	return Math.abs((ix2 - ix1) * (iy2 - iy1));
}

public int compareTo(Object r) {
	if(this.calcArea() < ((Rectangle)r).calcArea())
		return -1;
	if(this.calcArea() > ((Rectangle)r).calcArea())
		return 1;
	return 0;
}

public String toString() {
	return "ix1: " + ix1 + ", iy1: " + iy1 + ", ix2: " + ix2 + ", iy2: " + iy2;
}

public boolean equals(Rectangle r) {
	return this.calcArea() == r.calcArea();
}

public void translateX(int iPoints) {
	ix1 += iPoints;
	ix2 += iPoints;
}

public void translateY(int iPoints) {
	iy1 += iPoints;
	iy2 += iPoints;
}

public void translateXY(int iPoints) {
	translateX(iPoints);
	translateY(iPoints);
}

public boolean isInside(int ptx, int pty) {
	return (ix1 < ptx && ix2 > ptx && iy1 < pty && iy2 > pty);
}

public Rectangle unionRect(Rectangle r) {
	int x1 = Math.min(ix1, r.ix1);
	int y1 = Math.min(iy1, r.iy1);
	int x2 = Math.max(ix2, r.ix2);
	int y2 = Math.max(iy2, r.iy2);
	return new Rectangle(x1, y1, x2, y2);
}

public Rectangle intersectionRect(Rectangle r) {
	int x1 = Math.max(ix1, r.ix1);
	int y1 = Math.max(iy1, r.iy1);
	int x2 = Math.min(ix2, r.ix2);
	int y2 = Math.min(iy2, r.iy2);
	return new Rectangle(x1, y1, x2, y2);
}

public static void main(String[] args) {
	Rectangle rect = new Rectangle(2,2,10,10);
	System.out.println(rect.toString());

	Rectangle rect2 = new Rectangle(5,5,8,8);
	System.out.println(rect2.toString());

	if(rect.equals(rect2))
		System.out.println("rect == rect2");
	else System.out.println("rect != rect2");

	if(rect.compareTo(rect2) == -1)
		System.out.println("rect < rect2");
	else if(rect.compareTo(rect2) == 1) System.out.println("rect > rect2");
	else System.out.println("rect == rect2");
}
}