MediaPlayer代码，部分代码，合适请用：

import java.awt.*

import java.awt.event.*

import javax.swing.*

import javax.media.*

import java.io.*

import java.util.* //为了导入Vector

//import com.sun.java.swing.plaf.windows.*



public class MediaPlayer extends JFrame implements ActionListener,Runnable

{

private JMenuBar bar //菜单条

private JMenu fileMenu,choiceMenu,aboutMenu

private JMenuItem openItem,openDirItem,closeItem,about,infor

private JCheckBoxMenuItem onTop

private boolean top=false,loop //设定窗口是否在最前面

private Player player //Play是个实现Controller的接口

private File file,listFile //利用File类结合JFileChooser进行文件打开操作,后则与list.ini有关