public class BoringThread2 extends Thread {
    static int numberOfThreads = 0;
    int threadNumber = ++numberOfThreads;

    public void run() {
        int nrReps = 0;
        while (true) {
            System.out.println("Tråd " + threadNumber + " har kört " +
                               ++nrReps + " varv i loopen.");
        }
    } // run

    public static void main(String[] args) {
        BoringThread2 t1 = new BoringThread2();
        BoringThread2 t2 = new BoringThread2();
        t1.start();
        t2.start();
    } // main
} // class BoringThread2