class NewRectangle extends AbstractShape
{
  double w, h;
  NewRectangle(double width, double height){
    w = width;
    h = height;
  }
  
  double area(){
    return w*h;
  }
  
  void printDetails(){
    System.out.println("Rectangle: at ("+x+", "+y+")"+"area = "+area());
  }
}