static void Main(string[] args) { IPersonDol playerManager = new PlayerManager(); Player player = new Player() { Id = 1, BirthYear = 2001, FirstName = "Fatih", LastName = "Çayır", TC = 1235 }; Game game = new Game() { Id = 1, Name = "CS:GO", UnitPrice = 10 }; UserValidationManager userValidation = new UserValidationManager(); if (userValidation.Validate(player) == true) { playerManager.Add(player); } else { Console.WriteLine("Doğrulama başarısız"); } SellingManager selling = new SellingManager(); selling.Sell(); CampaignManager campaign = new CampaignManager(); campaign.EndOfYearCampaign(player, game); campaign.Delete(); }