public static void AddOrUpdate(Cheese cheese) { }
public static void Update(Cheese cheeseToUpdate) { }
public static void Add(Cheese newCheese) { newCheese.Id = nextId++; cheeses.Add(newCheese); }
public static void Remove(Cheese cheese) { Remove(cheese.Id); }
public static void Remove(Cheese cheeseToRemove) { //calling Remove method above Remove(cheeseToRemove.Id); }