public class Main {

    public static void main(String[] args) {

        int x = 1;
        String schrei = "David kanns jetzt";
        while( x <=20)
        { System.out.println (schrei);
            x= x+1;}
        if (x >=20)
            public static synchronized void playSound (final String url) {
            new Thread(new Runnable() {

                public void run() {
                    try {
                        Clip clip = AudioSystem.getClip();
                        AudioInputStream inputStream = AudioSystem.getAudioInputStream(
                                Main.class.getResourceAsStream("C:\\Users\\David\\Desktop" + url));
                        clip.open(inputStream);
                        clip.start();
                    } catch (Exception e) {
                        System.err.println(e.getMessage());
                    }
                }
            }).start();
        }


    }
}