public class Chopstick {

  private boolean free;

  private String name;



  Chopstick(String name) {

    free = true;

    this.name = name;

  }



  synchronized void take(String ph) {

    while(!free) {

      try {

        wait();

      } catch(InterruptedException e) {

        System.out.println(e);

      }

    }

    free = false;

  }



  synchronized void release(String ph) {

    notify();

    free = true;

  }



}