public class Rectangle : Boxed {
public double x1 ;
public double y1 ;
public double x2 ;
public double y2 ;
public Rectangle ( ) ;
public weak Rectangle copy ( ) ;
}

public Rectangle ( ) ;
public double x1 ;
public double y1 ;
public double x2 ;
public double y2 ;
public weak Rectangle copy ( ) ;
Created by Valadoc