public void TheAPP() { DBUtil utilities = new DBUtil(); Byy _by = new Byy("Vladivostock", "90099", "Russkiy"); utilities.GetByByByID(ref _by); utilities.AddBy(ref _by); Adresse _adresse = new Adresse("Okeanskiy Prospekt", "333B", _by); utilities.GetAdresseByID(ref _adresse); utilities.AddAdresse(ref _adresse); Person _person = new Person("Cyka Blyat", "Idi", "Nahui", "Gopnik", _adresse); utilities.GetPersonByID(ref _person); utilities.AddPerson(ref _person); }