class Box {
  double width;
  double height;
  double depth;
  Box() {
    System.out.println("Constructor de Box");
    width = 10;
    height= 10;
    depth = 10;
  }
  double volume() {
    return width * height * depth;
  }
}
class BoxDemo6 {
  public static void main(String args[]) {
    Box mybox1 = new Box();
    Box mybox2 = new Box();
    double vol;
    vol = mybox1.volume();
    System.out.println("El volumen es " + vol);
    vol = mybox2.volume();
    System.out.println("El volumen es " + vol);
  }
}