import java.awt.Point;
	
class ReferenceTest {
	public static void main (String[] arguments) {
		Point pt1, pt2;
		pt1 = new Point(100,100);
		pt2 = pt1;
		
		pt1.x = 200;
		pt1.y = 200;
		System.out.println("Point1: " + pt1.x + ", " + pt1.y);
		System.out.println("Point2: " + pt2.x + ", " + pt2.y);
	}
}