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 );

   }

}