static void InitGamer() { Gamer gamer1 = new Gamer(); gamer1.IdentiyNumber = 11111111111; gamer1.FirstName = "Ferdi"; gamer1.LastName = "Kaya"; gamer1.BirthYear = 1996; Gamer gamer2 = new Gamer(); gamer2.IdentiyNumber = 222222222222; gamer2.FirstName = "Engin"; gamer2.LastName = "Demiroğ"; gamer2.BirthYear = 1985; GamerManager gamerManager = new GamerManager(new UserValidationManager()); gamerManager.SaveGamer(new Gamer { IdentiyNumber = 123445, BirthYear = 1999, FirstName = "Ali" }); gamerManager.SaveGamer(gamer1); gamerManager.SaveGamer(gamer2); List <Gamer> listGamers = new List <Gamer>(); listGamers.Add(gamer1); listGamers.Add(gamer2); gamerManager.ListGamer(listGamers); gamerManager.UpdateGamer(gamer1); gamerManager.DeleteGamer(gamer2); gamerManager.RemoveListGamer(listGamers); }