public void PrintID()
{
CorporateCustomer cc = new CorporateCustomer();
cc._id = 101;
Console.WriteLine(cc._id);
}
public void printID1()
{
/*since id is an instance field we need to create an object of derived class.*/
CorporateCustomer cc = new CorporateCustomer();
cc.ID1 = 10;
}
static void Main(string[] args)
{
CorporateCustomer c1 = new CorporateCustomer();
c1.PrintID();
Console.ReadKey();
}