public virtual void CustomerType()
Console.WriteLine("I am customer");
public class CorporateCustomer : Customer
public override void CustomerType()
Console.WriteLine("I am a Corporate customer");
public class PersonaleCustomer : Customer
public override void CustomerType()
Console.WriteLine("I am a Personal customer");
public static void Main(String[] args)
Customer[] c = new Customer[3];
c[1] = new CorporateCustomer();
c[2] = new PersonaleCustomer();
foreach(Customer customerobject in c)
customerobject.CustomerType();