private int CustomerID { get; set; }
public string ComputerName { get; set; }
protected string State { get; set; }
public class MyCustomer : Customer {
public int CustomerID { get; set; }
public new string State { get; set; }
Console.WriteLine(this.State);
Console.WriteLine(this.ComputerName);
Console.WriteLine(this.CustomerID);
public static void Main()
MyCustomer customer = new MyCustomer();
customer.ComputerName = "ComputerName";
customer.CustomerID = 12345;
customer.State = "State";