class Methods int boolean valueSet false synchronized void producer in

class Methods {
  int n;
  boolean valueSet = false;
  synchronized void producer(int n) {
    while(valueSet)
        
      try {
        wait();
        Thread.sleep(1000);
      } catch(InterruptedException e) {
        System.out.println("InterruptedException caught");
      }

      this.n = n;
      valueSet = true;
      System.out.println("Производитель передал: " + n);
      notify();
  }
  
  synchronized int storehouse() {
    while(!valueSet)
      try {
        wait();
      } catch(InterruptedException e) {
        System.out.println("InterruptedException caught");
      }
      valueSet = false;
      notify();
      return n;
  }

   synchronized int user() {
    while(!valueSet)
      try {
        wait();
      } catch(InterruptedException e) {
        System.out.println("InterruptedException caught");
      }
      valueSet = false;      
      notify();
      return n;
  }
}
/*------------------------------------------------------------------*/
class Producer implements Runnable {
  Methods method;
  int n = 9;
  Producer(Methods method) {
    this.method = method;
    new Thread(this, "Producer").start();
  }
  public void run() {              
      while(n != -1){
        method.producer(n--);
      }
  }
}
/*------------------------------------------------------------------*/
class Storehouse implements Runnable{
    Methods method;
  static int[] value = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
  Storehouse(Methods method) {
    this.method = method;
    new Thread(this, "Storehouse").start();
  }
  public void run() {
    while(true) {
      System.out.println("Склад получил: " + value[method.storehouse()]);
    }
  }
}
/*------------------------------------------------------------------*/
class User implements Runnable {
  Methods method;

  User(Methods method) {
    this.method = method;
    new Thread(this, "User").start();
  }
  public void run() {
    while(true) {
       System.out.println("Потребитель получил: " + method.user());
    }
  }
}
/*------------------------------------------------------------------*/
class Main {
  public static void main(String args[]) {
    Methods method = new Methods();
    new Producer(method);
    new Storehouse(method);
    new User(method);
  }
}