/// <summary>
/// The maximum valid month (inclusive) within this calendar in the given year. It is assumed that
/// all calendars start with month 1 and go up to this month number in any valid year.
/// </summary>
/// <param name="year">The year to consider.</param>
/// <exception cref="ArgumentOutOfRangeException">The given year is invalid for this calendar.
/// Note that some implementations may return a month rather than throw this exception (for example, if all
/// years have the same number of months in this calendar system). Failure to throw an exception should not be
/// treated as an indication that the year is valid.</exception>
/// <returns>The maximum month number within the given year.</returns>
public int GetMaxMonth(int year)
{
return(yearMonthDayCalculator.GetMaxMonth(year));
}