import java.util.concurrent.CyclicBarrier;

class EksempelCyclic {
    private static final int ANTALL_TRAADER = 5;

    public static void main(String[] args) {
        CyclicBarrier cb = new CyclicBarrier(ANTALL_TRAADER);
        for(int i = 0; i < ANTALL_TRAADER; i++){
            new Thread(new CyclicBarrierTraad(cb)).start();
        }

    }
}

class CyclicBarrierTraad implements Runnable{

    private CyclicBarrier cb;

    public CyclicBarrierTraad(CyclicBarrier cb){
        this.cb = cb;
    }

    @Override
    public void run(){
        System.out.println("Venter forste gang");
        try {
            cb.await();
        } catch (Exception e) {
            System.out.println("Ble forstyrret");
        }
        System.out.println("Venter andre gang");
        try {
            cb.await();
        } catch (Exception e) {
            System.out.println("Ble forstyrret");
        }
    }
}