static void Main(string[] args)
{
Customer customer1 = new Customer();
customer1.Id = 1;
customer1.FirstName = "Aysu";
customer1.LastName = "Gökcen";
customer1.CreditCard = "1234-4567-9876-5432";
Customer customer2 = new Customer();
customer2.Id = 2;
customer2.FirstName = "Engin";
customer2.LastName = "Demiroğ";
customer2.CreditCard = "9876-5432-1234-5678";
/* Customer[] customers = { customer1, customer2 };
* foreach (Customer customer in customers)
* {
* Console.WriteLine(customer.FirstName + " " + customer.LastName);
* Console.WriteLine(customer.CreditCard);
* }*/
CustomerManager customerManager = new CustomerManager();
customerManager.addCustomer(customer1);
customerManager.addCard(customer1);
customerManager.deleteCustomer(customer2);
customerManager.deleteCard(customer2);
}