class Exemple extends Thread {

    public void run() {
        System.out.println("Coucou, je suis le thread !");
    }

    public static void main(String[] args) {
        Exemple th = new Exemple();
        th.start();
        System.out.println("Hop !");
        try {
            th.join();
        } catch (InterruptedException e) { }
    }
}