求高手帮忙！网上找了个40多行java简单音乐播放器，界面都有，运行也没有报错。但没有声音

//代码如下
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.JOptionPane;
public class shengyin extends Applet implements ActionListener
{
AudioClip clip=null;
Button buttonplay,buttonloop,buttonstop;
public void init()
{
clip=getAudioClip(getCodeBase(),"犯贱.au");
buttonplay=new Button("开始播放");
buttonloop=new Button("循环播放");
buttonstop=new Button("停止播放");
buttonplay.addActionListener(this);
buttonloop.addActionListener(this);
buttonstop.addActionListener(this);
add(buttonplay);
add(buttonloop);
add(buttonstop);
}
public void stop()
{
clip.stop();
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==buttonplay)
{
clip.play();
}
else if (e.getSource()==buttonloop)
{
clip.loop();
}
if(e.getSource()==buttonstop)
{
clip.stop();
}
}
}

求大神指点！