public class Point {
   private int x;
   private int y;
   
   public Point(int x, int y) {
      setX(x);
      setY(y);
   }
   
   public int getX() { return x; }
   public int getY() { return y; }
   
   public void setX(int x) { 
      if (x < 0) {
         x = 0;
      }
      this.x = x; 
   }
   public void setY(int y) { this.y = y; }
      
   public void translate(int dx, int dy) {
      this.x += dx;
      this.y += dy;
   }
   
   public double distanceTo(Point p) {
      int dx = this.x - p.x;
      int dy = this.y - p.y;
      return Math.sqrt(dx * dx + dy * dy);      
   }
   
   public String toString() {
      return "(" + this.x + ", " + this.y + ")";
   }
}