private static void Main(string[] args) { DogRepository repo = new DogRepository(); repo.SetDog(new Dog(1, (decimal)12.4, (decimal)134.5)); repo.SetDog(new Dog(2)); repo.GetDogs(); repo.GetDog(1); string s1 = repo.GetTitle("title", "subtitle", "author") + repo.CountHowMuchYouMustSpendMoneyToBeHappy((decimal)12.4, (decimal)134.5, (decimal)12.4); string s2 = repo.GetTitle("title", "subtitle", "author") + repo.CountHowMuchYouMustSpendMoneyToBeFine((decimal)12.4, (decimal)134.5, (decimal)12.4); Console.WriteLine(s1 + " vs " + s2); Console.ReadKey(); }