sound.java

一个音乐播放器程序一个音乐播放器程序一个音乐播放器程序一个音乐播放器程序一个音乐播放器程序

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.applet.*;
import java.net.*;
public class Sound implements ActionListener
{
	JMenuItem menuItem1,menuItem2,menuItem3,menuItem4;
    AudioClip mySound;
    static JFrame frame;
    public static void main(String [] args)
    {
    	frame =new JFrame("音乐播放器");
    	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    	Sound app=new Sound();
    	frame.setJMenuBar(app.createMenuBar());
    	frame.setContentPane(app.createContentPane());
    	frame.setSize(300,200);
    	frame.setVisible(true);
    }
    public JMenuBar createMenuBar()
    {
    	JMenuBar menuBar = new JMenuBar();
    	JMenu menu=new JMenu("音乐");
    	menuItem1=new JMenuItem("播放");
    	menu.add(menuItem1);
    	menuItem2=new JMenuItem("停止");
    	menu.add(menuItem2);
    	menuItem3=new JMenuItem("循环");
    	menu.add(menuItem3);
    	menuItem4=new JMenuItem("退出");
    	menu.add(menuItem4);
    	menuBar.add(menu);
    	menu=new JMenu("帮助");
    	menuBar.add(menu);
        menuItem1.addActionListener(this);
        menuItem2.addActionListener(this);
        menuItem3.addActionListener(this);
        menuItem4.addActionListener(this);
        return menuBar;
    }
    public JPanel createContentPane()
    {
    	mySound = loadSound("mySound.wav");
    	JPanel contentPane=new JPanel(new BorderLayout());
    	contentPane.setBackground(Color.blue);
    	return contentPane;
    }
    public void actionPerformed (ActionEvent e)
    {
    	if (e.getSource()==menuItem1)
    		mySound.play();
    	else if (e.getSource()==menuItem2)
    		mySound.stop();
    	else if (e.getSource()==menuItem3)
    		mySound.loop();
    	else 
    		{
    		JOptionPane.showMessageDialog(frame,"关闭程序!");
    		System.exit(0);
    		}
    }
    private AudioClip loadSound (String fileName)
    {
    	URL url =null;
    	try
    	{
    		url = new URL("file:"+System.getProperty("user.dir")+ "/"+fileName);
    	}
    	catch (MalformedURLException e){}
    	return Applet.newAudioClip(url);
    }
}