package concur;

public class Controler {

   public static void main(String[] args) {
      new Controler();
   }

   public Controler() {
      Worker[] wrk = new Worker[5];
      for (int i = 0; i < wrk.length; i++)
         wrk[i] = new Worker();

      for (int i = 0; i < wrk.length; i++)
         wrk[i].start();

      try {
         for (int i = 0; i < wrk.length; i++) {
            System.out.println("LIBERE");
            synchronized (wrk[i]) {
               wrk[i].notify();
            }
            Thread.sleep(700);
            if (wrk[i].isAlive()) {
               System.out.println("ARRETE");
               synchronized (wrk[i]) {
                  wrk[i].wait();
               }
            }
         }
      } catch (InterruptedException e) {
         e.printStackTrace();
      }
   }

}