static void Main(string[] args) { Player player1 = new Player { FirstName = "Mert", LastName = "Özdemir", Id = 1, IdentityNumber = 123465789, YearOfBirth = 1986 }; Player player2 = new Player { FirstName = "Ahmet", LastName = "Yıldız", Id = 2, IdentityNumber = 1234657890, YearOfBirth = 1985 }; Game game1 = new Game { Id = 1, Name = "PUBG", UnitPrice = 250 }; userValidationManager userValidationManager = new userValidationManager(); GameSalesPlatformManager gameSalesPlatformManager = new GameSalesPlatformManager(); CampaignManager campaignManager = new CampaignManager(); PlayerManager playerManager = new PlayerManager(new userValidationManager()); playerManager.Add(player1); playerManager.Delete(player2); playerManager.Update(player2); gameSalesPlatformManager.Sale(player2, game1); campaignManager.NewYearCampaign(player1, game1); campaignManager.NewYearCampaign(player2, new Game { Id = 2, Name = "CS", UnitPrice = 400 }); }