如何停止播放？

Question

public class Jxplay extends Thread {

File f;

public Jxplay(File f){

    this.f=f;

}

public void run(){

    try{
        FileInputStream fis = new FileInputStream(f);
        Player jx = new Player(fis);
        jx.play();

    }
    catch(Exception e){
        e.printStackTrace();
    }
}

}

如何停止播放？