import java.awt.*;
import java.awt.event.*;
import java.applet.*;
public class Zeichnen extends Applet 
		implements MouseListener, MouseMotionListener{
	public void init(){
		addMouseListener(this);
		addMouseMotionListener(this);
		}
	private int x_pos=0;
	private int y_pos=0;
	public void mousePressed(MouseEvent e){
		x_pos = e.getX();
		y_pos = e.getY();
		}
	public void mouseDragged(MouseEvent e){
		Graphics g=getGraphics();
		int x = e.getX();
		int y = e.getY();
		g.drawLine(x_pos,y_pos,x,y);
		x_pos = x;
		y_pos = y;
		}
	public void mouseClicked(MouseEvent e){}
	public void mouseEntered(MouseEvent e){}
	public void mouseExited(MouseEvent e){}
	public void mouseReleased(MouseEvent e){}
	public void mouseMoved(MouseEvent e){}
	}

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(),"klirr.au");
		repaint();
		}
		}