static void Main(string[] args) { PlayerManager playerManager = new PlayerManager(); IPlayer player1 = new Player(); player1.Id = 1; player1.FirstName = "Mert"; player1.Surname = "Sevingit"; player1.TcNo = "12345678910"; player1.YearOfBirth = 1994; playerManager.Add(player1); IPlayer player2 = new Player(); player2.Id = 2; player2.FirstName = "Emre"; player2.Surname = "Ozturk"; player2.TcNo = "12345698710"; player2.YearOfBirth = 1994; playerManager.Add(player2); playerManager.List(); playerManager.Update(2, new Player() { Id = 2, FirstName = "Efe", Surname = "Onder", TcNo = "12345678911", YearOfBirth = 1994 }); playerManager.List(); GameManager gameManager = new GameManager(); IGame game1 = new Game(); game1.Id = 1; game1.Name = "Outlast"; game1.GamePrice = 35; gameManager.Add(game1); gameManager.Add(new Game() { Id = 2, Name = "Outlast 2", GamePrice = 80 }); gameManager.List(); CampaignManager campaignManager = new CampaignManager(); ICampaign campaign1 = new Campaign(); campaign1.Id = 1; campaign1.name = "BlackFriday"; campaign1.Discont = 50; campaignManager.Add(new Campaign()); campaignManager.ApplyDiscont(game1, campaign1); campaignManager.SellGame(player1, game1); }