public class Square extends Figure {

  private Point leftUp;
  private Point rightDown;

  public Square(Point p1, Point p2) {
    this.leftUp = p1;
    this.rightDown = p2;
  }

  public boolean equals (Object q)  {
	  throw new UnsupportedOperationException();
  }
  
  public double len()  {
	  throw new UnsupportedOperationException();
  }

  public double diagonal()  {
	  throw new UnsupportedOperationException();
  }

  public double perim() {
	  throw new UnsupportedOperationException();
  }

  public double area()  {
	  throw new UnsupportedOperationException();
  }
}