static void Main(string[] args) { BackEnd.BackEnd b = new BackEnd.BackEnd(); b.TestData(); b.AllLundries(); Console.WriteLine("Before removed amount of reservations: " + b.LaundryUser.Reservations.Count); b.RemoveFutureRes("eunji1"); Console.WriteLine("After removed amount of reservations:" + b.LaundryUser.Reservations.Count); b.DeleteTestData(); Console.ReadLine(); }