我已经为播放音频文件编写了此代码，我想在播放后获得音频文件何时结束的指示。我试过AS。getMicrosecondLength（）==AS。getMicrosecondPosition（），但未为AudioStream定义这些方法。请告诉我怎么做。

import java.io.FileInputStream;
import sun.audio.AudioPlayer;
import sun.audio.AudioStream;


public class A {

    public static void main(String arg[]) throws Exception {

        AudioStream AS = new AudioStream(new FileInputStream("sounds.wav"));
        AudioPlayer.player.start(AS);
    }
}