Cant play sound.. Stupid errors!!!

Question

Im trying to play a .wav file and I get this error:
NativeAudioStream: invalid file type.
NativeAudioStream: invalid file type.
NativeAudioStream: invalid file type.
NativeAudioStream: invalid file type.
I then try to play a .au file and I get this error:
NativeAudioStream: invalid sample rate of 44100.
NativeAudioStream: invalid file type.
NativeAudioStream: invalid sample rate of 22050.
NativeAudioStream: invalid file type.
Does anyone know how I can solve the problem?

Answer 1

By the way, here's my source code:
// The "Sound" class.
import java.applet.*;
import java.awt.*;
public class Sound extends Applet implements Runnable
    int x = 0;
    Thread t;
    int x_speed = 3;
    int count = 0;
    int click = 0;
    Image buffer;
    Graphics bufferg;
    AudioClip bounce;
    AudioClip intro;
    public void init ()
        intro = getAudioClip (getCodeBase (), "intro.wav");
        intro.play ();
        bounce = getAudioClip (getCodeBase (), "bounce.wav");
        Thread t = new Thread (this);
        t.start ();
        Dimension d = getSize ();
        buffer = createImage (d.width, d.height);
    } // init method
    public boolean keyDown (Event E, int key)
        if (key == 's')
            intro.stop ();
        return true;
    public void run ()
        try
            while (true)
                repaint ();
                Thread.sleep (20);
        catch (Exception e)
    public void update (Graphics g)
        paint (g);
        g.drawString ("Press the 's' key to stop the music", 10, 10);
    public void paint (Graphics g)
        if (bufferg == null)
            bufferg = buffer.getGraphics ();
        Dimension d = getSize ();
        if (x + 50 > d.width)
            x_speed = -x_speed;
            count++;
            bounce.play ();
        else if (x + x_speed < 0)
            x_speed = -x_speed;
            count++;
            bounce.play ();
        x += x_speed;
        bufferg.setColor (Color.yellow);
        bufferg.fillRect (0, 0, d.width, d.height);
        bufferg.setColor (Color.blue);
        bufferg.fillOval (x, d.height / 4, 50, 50);
        bufferg.setColor (Color.black);
        bufferg.drawString ("Number of bounces is " + count, 50, 150);
        g.drawImage (buffer, 0, 0, this);
    } // paint method
} // Sound class