public static void Main(string[] strings)
{
Console.WriteLine("\nPassing a BankAccount");
BankAccount ba = new BankAccount();
Test1(ba);
Console.WriteLine("\nPassing a SavingsAccount");
SavingsAccount sa = new SavingsAccount();
Test1(sa);
Test2(sa);
Console.WriteLine("\nPassing a SpecialSaleAccount");
SpecialSaleAccount ssa = new SpecialSaleAccount();
Test1(ssa);
Test2(ssa);
Test3(ssa);
Console.WriteLine("\nPassing a SaleSpecialCustomer");
SaleSpecialCustomer ssc = new SaleSpecialCustomer();
Test1(ssc);
Test2(ssc);
Test3(ssc);
Test4(ssc);
// wait for user to acknowledge
Console.WriteLine();
Console.WriteLine("Press Enter to terminate...");
Console.Read();
}
public static void Test3(SpecialSaleAccount account)
{
Console.WriteLine("\tto Test(SpecialSaleAccount)");
account.Withdraw(100);
}