/** This Class is a coordinate with x and y. */
public class Point {
  public double x,y;
  
  /** Default constructor with x=0 and y=0 */
  public Point () { 
    x=0;
    y=0;
  }
  
  /** Constructor sets x and y */
  public Point (double x, double y) { 
    this.x=x;
    this.y=y;
  }
  
  /** Copy Constructor */
  public Point (Point p) { 
    this.x=p.x;
    this.y=p.y;
  }
 
  /** Converts the coordiante to a String for printing */
  public String toString() {
    return("Point ("+x+","+y+")");
  }

  /** Calculates the distance to another Point */
  public double distance(Point p2) {
    return (Math.sqrt( (x-p2.x)*(x-p2.x) + (y-p2.y)*(y-p2.y) ));
  }

  /** Returns the position as a Point (in this case it returns itself) */
  public Point position() {
    return this;
  }

}