public void PrintID()
{
CoorporateCustomer CC = new CoorporateCustomer();
CC._id = 101;
base._id = 101;
this._id = 101;
Console.WriteLine(CC._id);
}
// PRIVATE, PROTECTED, INTERNAL, PROTECTED INTERNAL, PUBLIC
static void Main(string[] args)
{
//Private and protected
Customer c1 = new Customer();
c1.ID = 15;
Console.WriteLine(c1.ID);
CoorporateCustomer cc = new CoorporateCustomer();
cc.PrintID();
//End private and protected
}