import java.awt.Rectangle;

public class VorlageDemo {

    public static void main(String[] args) {
        int margin     = 25;
        int box_height = 50;
        int box_width  = 150;
        Rectangle r1 = new Rectangle(margin, margin + box_width,
                                     box_width, box_height);
        GraphicsWindow gw = new GraphicsWindow();
        gw.fill(r1);

        // ... TODO ...

        gw.setText("Klicken Sie zum Beenden.");
        gw.mouseClick();
        System.exit(0);
    }

}