private static void DeductTax(Account[] accounts)
{
foreach (Account acc in accounts)
{
ITaxable t = acc as ITaxable;
t?.Deduct();
}
}
private static void DeductTax(Account[] group)
{
foreach (var acc in group)
{
ITaxable t = acc as ITaxable;
t?.Deduct(); //if(t != null) t.Deduct()
}
}
private static void DeductAnnualTax(Account[] accounts)
{
foreach (Account acc in accounts)
{
ITaxable t = acc as ITaxable;
t?.Deduct(); //if(t != null) t.Deduct()
}
}
