public class PointMain {
  public static void main(String args[]) {
    Point p = new Point(10, 20);

    /* loads o'compiler errors */
    /* x and y are private */
    // p.x += 5;
    // p.y += 5;

    /* can't even read them */
    // System.out.println(p.x + "," + p.y);
	
    /* this does work */
    System.out.println("before: " + p);
    p.move(5, 5);
    System.out.println("after: " + p);
  }
}