[Java] Java实现的简单音乐播放器功能示例

import java.applet.audioclip;
import java.awt.*;
import java.net.*;
import java.awt.event.*;
import java.io.*;
import java.applet.*;
import javax.swing.*;
import javax.swing.jbutton;
import javax.swing.jcombobox;
import javax.swing.jdialog;
public class musicplayer extends jdialog implements runnable,itemlistener,actionlistener{
  /**
   *
   */
  private static final long serialversionuid = 1l;
  thread thread;
  jcombobox<serializable> choicemusic;
  audioclip clip;
  jbutton buttonplay,buttonloop,buttonstop;
  string str;
  musicplayer(){
  thread=new thread(this);
  choicemusic=new jcombobox();
  choicemusic.additem("选择音频文件");
  choicemusic.additem("src/1.wav");
  choicemusic.additem("‪2.wav");
  choicemusic.additem("3.wav");
  choicemusic.additemlistener(this);
  buttonplay=new jbutton("播放");
  buttonloop=new jbutton("循环");
  buttonstop=new jbutton("停止");
  buttonplay.addactionlistener(this);
  buttonloop.addactionlistener(this);
  buttonstop.addactionlistener(this);
  setlayout(new flowlayout());
  add(choicemusic);
  add(buttonplay);
  add(buttonloop);
  add(buttonstop);
  setdefaultcloseoperation(jframe.dispose_on_close);
  setsize(350,80);
  }
  @override
  public void actionperformed(actionevent e) {
  if(e.getsource()==buttonplay)
    clip.play();
  else if(e.getsource()==buttonloop)
    clip.loop();
  else if(e.getsource()==buttonstop)
    clip.stop();
  }
  @override
  public void itemstatechanged(itemevent arg0) {
  str=choicemusic.getselecteditem().tostring();
  if(!(thread.isalive())){
    thread=new thread(this);
  }
  try{thread.start();
  }
  catch(exception ee){}
  }
  @override
  public void run() {
  try {
  file file=new file(str);
  uri uri=file.touri();
  url url=uri.tourl();
  clip=applet.newaudioclip(url);
  } catch (malformedurlexception e) {
  }
  }
  public static void main(string[] args) {
  musicplayer musicplayer=new musicplayer();
  musicplayer.setvisible(true);
  }
}