Java初学者：一个简单的命令行音频播放器的代码

import javax.media.*; import java.io.File; import java.io.IOException; import java.net.URL; import java.util.Scanner;public class SimpleAudioPlayer {private Player audioPlayer=null;public SimpleAudioPlayer(URL url)throws IOException,NoPlayerException,CannotRealizeException{audioPlayer=Manager.createRealizedPlayer(url);}public SimpleAudioPlayer(File file)throws IOException,NoPlayerException,CannotRealizeException{this(file.toURI().toURL());}public void play(){audioPlayer.start();}public void stop(){audioPlayer.stop();audioPlayer.close();}public Player get(){return audioPlayer;}public static void main(String[] args) throws NoPlayerException, CannotRealizeException, IOException, InterruptedException{File audioFile=new File(args[0]);SimpleAudioPlayer player=new SimpleAudioPlayer(audioFile);player.play();Player p=player.get();Scanner s=new Scanner(System.in);String enter=s.next();if(p==null||enter.equals("q")){player.stop();}return ;}