class ThreadEx {

    public static void main(String args[]) {
        System.out.println("Thread Beispiel");
        System.out.println("");
        TicTacToe Tic = new TicTacToe("Tic ",  5);
        TicTacToe Tac = new TicTacToe("Tac ", 15);
        TicTacToe Toe = new TicTacToe("Toe ", 30);
        Thread t1 = new Thread(Tic);
        Thread t2 = new Thread(Tac);
        Thread t3 = new Thread(Toe);
        t1.start();
        t2.start();
        t3.start();
        try { Thread.sleep(2000);} catch (InterruptedException e) {}
        Tic.Stop();
        Tac.Stop();
        Toe.Stop();     
    }
}

class TicTacToe implements Runnable{
    String was;
    int WarteZeit;
    boolean beendet = false;
    TicTacToe(String s, int t){ was = s; WarteZeit = t;}
    void Stop(){ beendet = true;}
    public void run(){
        for (;;) {
            if (beendet) return;
            System.out.print(was);
            try {Thread.sleep(WarteZeit);} 
            catch (InterruptedException e) {beendet = true;}
            }
        }
}