exercise14_3.java

一款用java编写的小型数据库管理系统

import java .awt.*;
import java.awt.event.*;
import javax.swing.*;
import java .applet.*;
public class Exercise14_3 extends JApplet{
	 private AudioClip audioClip =  Applet.newAudioClip(getClass().getResource("夜曲.wav"));
     public Exercise14_3(){
	   JButton jbPlay=new JButton("Play");
	   JButton jbLoop=new JButton("Loop");
	   JButton jbStop=new JButton("Stop");
	   setLayout(new FlowLayout());
	   add(jbPlay);
	   add(jbLoop);
	   add(jbStop);
	    jbPlay.addActionListener(new ActionListener(){
		   public void actionPerformed(ActionEvent e){
              audioClip.play();
			   }
		    });
		jbLoop.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
			   audioClip.loop();
				}
			});
		jbStop.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
			   audioClip.stop();
			    }
			 });
   }

   public  static void main(String[]args){
	   JFrame frame = new JFrame("Exercise14_3");
	   Exercise14_3 applet = new Exercise14_3();
	   frame.getContentPane().add(applet, BorderLayout.CENTER);
	   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	   frame.setLocationRelativeTo(null);
	   frame.pack();
	   frame.setVisible(true);
   }
}