Не проходит по 3 -му пункту. В чем проблема? Помогите!
package com.javarush.task.task27.task2712;
import com.javarush.task.task27.task2712.kitchen.Cook;
import com.javarush.task.task27.task2712.kitchen.Waiter;
import java.util.Observable;
/**
* Created by User on 14.03.2019.
*/
public class Restaurant {
public static void main(String[] args) {
Tablet tablet = new Tablet(5);
Observable observer = new Observable();
Cook cook = new Cook("Amigo");
Waiter waiter = new Waiter();
tablet.addObserver(cook);
cook.addObserver(waiter);
tablet.createOrder();
DirectorTablet directorTablet = new DirectorTablet();
directorTablet.printAdvertisementProfit();
directorTablet.printCookWorkloading();
directorTablet.printActiveVideoSet();
directorTablet.printArchivedVideoSet();
}
}