import java.awt.*; import java.awt.event.*; import java.applet.*; public class Tafel extends Zeichnen implements ActionListener{ private Button loeschKnopf; public void init(){ super.init(); loeschKnopf = new Button("Loesche"); add(loeschKnopf); loeschKnopf.addActionListener(this); } public void actionPerformed(ActionEvent event){ play(getDocumentBase(),"sound.au"); repaint(); } }