JAVA applet 播放音乐

import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;
import java.applet.AudioClip;

public class PlayMedia extends Applet implements ActionListener
{
AudioClip audio;
Button btnPlay;
Button btnStop;
public void init()
{
btnPlay=new Button( "Play ");
btnStop=new Button( "Stop ");
add(btnPlay);
add(btnStop);
btnPlay.addActionListener(this);
btnStop.addActionListener(this);
try
{
audio=getAudioClip(getDocumentBase(), "1.au ");
}
catch(Exception e)
{
System.out.println(e.toString());
}
}
public void actionPerformed (ActionEvent e)
{
if(e.getSource()==btnPlay)
{
try
{
audio.play ();
}
catch (Exception err)
{
System.out.println (err.toString ());
}
}
if(e.getSource()==btnStop)
{
try
{
audio.stop ();
}
catch (Exception err)
{
System.out.println (err.toString ());
}
}
}
}