一个简单的播放音乐片段的 Applet小程序

import java.awt.* ;
import java.awt.event.* ;
import javax.swing.* ;
import java.applet.Applet ;
import java.net.* ;
import java.applet.AudioClip ;
public class PlaySound extends Applet
{
private JButton p1,p2,p3 ;
private JComboBox com ;
private String song[]={"1.wav","2.wav","2.wav","4.wav"} ;
JPanel p =new JPanel() ;
String url ="1.wav" ;
AudioClip au ;
public void init()
{
p1=new JButton("播放") ;
p2=new JButton("循环") ;
p3=new JButton("停止") ;
com=new JComboBox(song) ;
add(com) ;
add(p1);
add(p2);
add(p3);
com.addItemListener(new ItemListener()
{
public void itemStateChanged(ItemEvent e)
{
url=(String)com.getSelectedItem() ;
au.stop() ;
try
{
au=getAudioClip(new URL(getCodeBase()+url));
}
catch(Exception e1)
{
}

}
}
) ;

p1.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
au.play() ;
}

}
);
p2.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
au.loop() ;
}

}
);
p3.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
au.stop() ;
}

}
);
try
{
au=getAudioClip(new URL(this.getCodeBase()+url));
}
catch(Exception e)
{
}
}

}