import java.awt.*;
import java.applet.AudioClip;

public class LaughTrack extends javax.swing.JApplet
    implements Runnable {

    AudioClip[] laugh = new AudioClip[4];
    Thread runner;

    public void start() {
         if (runner == null) {
             runner = new Thread(this);
             runner.start();
         }
    }

    public void stop() {
        if (runner != null) {
            for (int i = 0; i < laugh.length; i++)
                if (laugh[i] != null)
                    laugh[i].stop();
            runner = null;
        }
    }

    public void init() {
        for (int i = 0; i < laugh.length; i++)
            laugh[i] = getAudioClip(getCodeBase(),
                "laugh" + i + ".wav");
    }

    public void run() {
        for (int i = 0; i < laugh.length; i++)
            if (laugh[i] != null)
                laugh[i].loop();
        Thread thisThread = Thread.currentThread();
        while (runner == thisThread) {
            try {
                Thread.sleep(5000);
            } catch (InterruptedException e) { }
        }
   }

    public void paint(Graphics screen) {
        Graphics2D screen2D = (Graphics2D) screen;
        screen2D.drawString("Playing Sounds ...", 10, 50);
    }
}