static void Main(string[] args) { Diary diary = new Diary(); //diary.AddRating(5); //diary.AddRating(8.5f); //diary.AddRating(4.7f); //float avg = diary.Average(); //float max = diary.MaxRating(); //float min = diary.MinRating(); for (; ;) { Console.WriteLine("Podaj ocenę: "); float rating; bool result = float.TryParse(Console.ReadLine(), out rating); if (rating == 555) { break; } if (result) // = result == true { if (rating > 0 && rating <= 10) { diary.AddRating(rating); } else { Console.WriteLine("Niepoprawna liczba! Podaj liczbę z zakresu 1 - 10"); } } } Console.WriteLine("Średnia ocen to: " + diary.Average()); Console.WriteLine("Najwyższa ocena to: " + diary.MaxRating()); Console.WriteLine("Najniższa ocena to: " + diary.MinRating()); Console.ReadKey(); Diary diary2 = new Diary(); Diary diary3 = new Diary(); }