public class ThreadCreation implements Runnable {
  public ThreadCreation () {
    Thread ct = Thread.currentThread();
    ct.setName("Thread principale");
    Thread t = new Thread(this, "Thread figlio");
    System.out.println("Thread attuale: " + ct);
    System.out.println("Thread creato: " + t);
    t.start();
    try {
        Thread.sleep(3000);
    }
    catch (InterruptedException e) {
      System.out.println("principale interrotto");
    }
    System.out.println("uscita Thread principale");
  }
public void run() {
  try {
    for (int i = 5; i > 0; i--) {
      System.out.println("" + i);
      Thread.sleep(1000);
     }
    }
    catch (InterruptedException e) {
    System.out.println("Thread figlio interrotto");
    }
    System.out.println("uscita Thread figlio");
    }
 public static void main(String args[]) {
 new ThreadCreation();
 }
}