class MyProcess implements Runnable {

  final int ID;
  final int nextOne; // ID of the next Runnable process
  final Thread[] threadArray; // reference to the array of threads

  MyProcess(int i, Thread[] array) {
    threadArray = array;
    ID = i;
    nextOne = (i + 1) % Test.THREADCOUNT;
  }

  @Override
  public void run() { // when this runs
    while (true) { // forever
      {
        try {
          Thread.sleep(100000); // go to sleep
        } catch (InterruptedException ex) { // but when interrupted
          System.out.println("MyProcess id " + ID + " running"); //output message
          threadArray[nextOne].interrupt(); // then interrupt the next
        }
      }
    }

  }

}

public class Test {

  final static int THREADCOUNT = 15;

  public static void main(String args[]) {

    // an array of threads:
    final Thread[] threadArray = new Thread[THREADCOUNT];
    for (int i = 0; i < THREADCOUNT; i++) { // fill array with threads
      // based on the set of processes
      threadArray[i] = new Thread(new MyProcess(i, threadArray));
    }
    for (int i = 0; i < THREADCOUNT; i++) {
      threadArray[i].start(); // start them all
      // they will all go to sleep
    }
    threadArray[0].interrupt(); // wake up the first

  }
}