static void Main(string[] args)
{
Customer customer = new Customer();
customer.Id = 1;
customer.Name = "Harry";
customer.Surname = "Potter";
customer.Address = "Hogwarts School of Witchcraft and Wizardry";
customer.Birthday = "31.07.1980";
CustomerManager cmanager = new CustomerManager();
cmanager.Create(customer);
Console.WriteLine("create method checked\n==============================");
cmanager.ReadInfo(customer);
Console.WriteLine("read method checked\n==============================");
customer.Id = 2;
customer.Name = "Ronald";
customer.Surname = "Weasley";
customer.Address = "Shell Cottage";
customer.Birthday = "01.05.1980";
cmanager.Update(customer);
Console.WriteLine("update method checked\n==============================");
cmanager.Delete(customer);
Console.WriteLine("delete method checked\n==============================");
}
