Listing 5
  public class CrossMaker
                    extends LineMaker
  {
    public CrossMaker(int street, 
                     int avenue,
                     Direction facing,
                     int beepers)
    {
      super(street, avenue, West, 3);
    }

    public void makeShape()
    {
      LineMaker firstLine =
        new LineMaker(5, 5, North, 3);
      LineMaker secondLine =
        new LineMaker(5, 5, East, 3);
      LineMaker thirdLine = 
        new LineMaker(5, 5, South, 3);

      firstLine.makeShape();
      secondLine.makeShape();
      thirdLine.makeShape();
      super.makeShape();
    }

  }