public void RemoveRental(RentalBase rental)
{
if (rentalList.Count > 0)
{
rentalList.Remove(rental);
}
else
{
throw new IndexOutOfRangeException();
}
}
public void AddRental(RentalBase rental)
{
if (rentalList.Count < 5)
{
rentalList.Add(rental);
}
else
{
throw new IndexOutOfRangeException();
}
}