applet_music_player.rar_Applet music_html音乐播放_player

import java.io.*; import java.awt.*; import java.applet.*; import java.awt.event.*; public class MusicApplet extends Applet implements ActionListener{ Button b_play, b_loop, b_stop; TextArea ta; List list; //audio AudioClip audioClip; public void init() { //html String filenames = getParameter("filelist"); String fileList[] = filenames.split(" "); //下层panel b_play = new Button("Play"); b_play.addActionListener(this); b_loop = new Button("Loop"); b_loop.addActionListener(this); b_stop = new Button("Stop"); b_stop.addActionListener(this); Panel panel_button = new Panel(); panel_button.setLayout(new FlowLayout()); panel_button.add(b_play); panel_button.add(b_loop); panel_button.add(b_stop); //中间panel ta = new TextArea(); list = new List(5, false); list.addActionListener(this); for (int i = 0; i < fileList.length; i++) { list.add(fileList[i]); } Panel panel_text = new Panel(); panel_text.setLayout(new GridLayout(1, 2)); panel_text.add(list); panel_text.add(ta); //applet setLayout(new BorderLayout()); add(panel_button, "South"); add(panel_text, "Center"); audioClip=getAudioClip(getCodeBase()); } public void actionPerformed(ActionEvent e) { Object obj = e.getSource(); if (obj == list) { String s = list.getSelectedItem(); File file = new File(s); if (file.exists()) { audioClip=getAudioClip(getCodeBase(), s); ta.setText(s + " is opened successfully"); audioClip.loop(); } else { ta.setText(s + " doesn't exist, please choose another one"); } } else if (obj == b_play) { audioClip.play(); } else if (obj == b_loop) { audioClip.loop(); } else if (obj == b_stop) { audioClip.stop(); } } }