public static void Main(string[] args)
        {
            PizzaVegMenuItems pizzaVegMenu    = new PizzaVegMenuItems();
            PizzaNonvegMenu   pizzaNonvegMenu = new PizzaNonvegMenu();

            // combine both menus together
            PizzaMenuItem pizzaMenuItem = new PizzaMenuItem(pizzaVegMenu, pizzaNonvegMenu);

            // print pizza menu items both for veg and non veg

            pizzaMenuItem.printPizzaMenu();
        }
 public PizzaMenuItem(PizzaNonvegMenu pizzaHouseNonVeg,
                      PizzaVegMenuItems pizzaHouseVegetarianMenu)
 {
     this.pizzaHouseNonVeg         = pizzaHouseNonVeg;
     this.pizzaHouseVegetarianMenu = pizzaHouseVegetarianMenu;
 }