static void Main(string[] args)
{
Customer customer1 = new CorporateCustomer
{
CustomerID = 1,
CustomerNumber = "12345",
CompanyName = "Assistt",
TaxIDNumber = "55659898965"
};
Customer customer2 = new GeneralCustomer
{
CustomerID = 2,
CustomerNumber = "12346",
CustomerName = "Gizem",
CustomerLastName = "Çınar"
};
CustomerManager customerManager = new CustomerManager();
customerManager.Add(customer2);
customerManager.Add(customer1);
customerManager.Delete(customer2);
customer2.CustomerNumber = "12378";
customerManager.Update(customer2);
}