static void Main(string[] args) { Customer c1 = new Customer(); Customer c2 = new Customer(); Customer c3 = new Customer(); Customer c4 = new Customer(); CustomerManager manage = new CustomerManager(); c1.Id = 0; c2.Id = 1; c3.Id = 2; c4.Id = 3; c1.FirstName = "Ramazan"; c1.LastName = "Karabulut"; c2.FirstName = "Damla"; c2.LastName = "Sökmen"; c3.FirstName = "Alper"; c3.LastName = "Talas"; c4.FirstName = "Ayşe"; c4.LastName = "Yiğit"; Customer[] cArray = new Customer[] { c1, c2, c3, c4 }; manage.customeAdd(c1); manage.customeAdd(c2); manage.customeAdd(c3); manage.customeAdd(c4); manage.customeDelete(c1); manage.customeDelete(c2); manage.customeDelete(c3); manage.customeDelete(c4); manage.printCustomer(cArray); }