public class Point {
   // fields 
   int x;
   int y;
   
   public double distanceFromOrigin() {
      return Math.sqrt(x * x + y * y);
   }
   
   public double distanceFrom(Point p) {
      return Math.sqrt((p.x - x) * (p.x - x) + (p.y - y) * (p.y - y));
   }
   
   public void translate(int dx, int dy) {
      x += dx;
      y += dy;
   }
}