一个简单的音乐播放器的java代码.docxVIP

import java.awt.*;import java.awt.event.*;import java.io.*;import java.util.*;import javax.swing.*;import javax.media.bean.playerbean.*;import java.io.IOException;import javax.swing.JOptionPane;import java.awt.*;public class lyt extends JFrame implements Runnable {public MediaPlayer soumd1; private JButton playSound, stopsound, tjian,loopSound;private JMenuItem jmiOpen,jmiSave,jmiExit,jmiAbout; public JPanel jp1, jp2, jp3, jp4;public JList jl; private JButton last, next, stop;public Vector vector, mingcheng;boolean fo = false, geshi = false;JLabel jl1, jl2, sj1, sj2;JTextField jt1, jt2;int a = 0, b = 0, you = 1, mm = 0; public lyt() { super(200842018java音乐播放器); soumd1 = new MediaPlayer(); Container c = getContentPane(); c.setLayout(new FlowLayout()); mingcheng = new Vector(); jp1 = new JPanel(); c.add(jp1);JMenuBar mb=new JMenuBar(); setJMenuBar(mb);JMenu fileMenu=new JMenu(文件); mb.add(fileMenu); JMenu helpMenu=new JMenu(帮助); mb.add(helpMenu); fileMenu.add(jmiOpen=new JMenuItem(打开)); fileMenu.add(jmiSave=new JMenuItem(播放));helpMenu.add(jmiAbout=new JMenuItem(关于)); JPanel jp2 = new JPanel(); jp2.setLayout(new FlowLayout()); jp2.add(last = new JButton(后退)); jp2.add(playSound = new JButton(播放)); jp2.add(tjian = new JButton(添加)); jp2.add(next = new JButton(前进)); jp2.add(stopsound = new JButton(停止)); jp2.add(loopSound= new JButton(循环)); getContentPane().add(jp2, BorderLayout.SOUTH); jp2 = new JPanel(); jp2.add(playSound); jp2.add(stopsound); c.add(jp2); jp4 = new JPanel(); sj1 = new JLabel(); sj2 = new JLabel(); jp4.add(sj1); jp4.add(sj2); c.add(jp4); vector = new Vector(); jl = new JList(mingcheng); jl.setVisibleRowCount(4); jl.setFixedCellHeight(30); jl.setFixedCellWidth(265);jl.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); c.add(new JScrollPane(jl)); jp3 = new JPanel(); jp3.add(tjian); c.add(jp3); try { String s = d:\\music.txt;