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HebrewCalendar.IsLeapMonth(Int32, Int32, Int32) Method

  • Reference

Definition

Namespace:
System.Globalization
Assemblies:
mscorlib.dll, System.Globalization.Calendars.dll
Assembly:
System.Runtime.dll
Assembly:
System.Globalization.Calendars.dll
Assembly:
mscorlib.dll
Assembly:
netstandard.dll
Source:
HebrewCalendar.cs
Source:
HebrewCalendar.cs
Source:
HebrewCalendar.cs

Determines whether the specified month in the specified year in the specified era is a leap month.

public:
 override bool IsLeapMonth(int year, int month, int era);
public override bool IsLeapMonth (int year, int month, int era);
override this.IsLeapMonth : int * int * int -> bool
Public Overrides Function IsLeapMonth (year As Integer, month As Integer, era As Integer) As Boolean

Parameters

year
Int32

An integer that represents the year.

month
Int32

An integer from 1 to 13 that represents the month.

era
Int32

An integer that represents the era. Specify either HebrewEra or HebrewCalendar.Eras[Calendar.CurrentEra].

Returns

Boolean

true if the specified month is a leap month; otherwise, false.

Exceptions

ArgumentOutOfRangeException

year, month, or era is outside the range supported by this calendar.

Examples

The following code example calls IsLeapMonth for all the months in five years in the current era.

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Creates and initializes a HebrewCalendar.
   HebrewCalendar^ myCal = gcnew HebrewCalendar;
   
   // Checks all the months in five years in the current era.
   int iMonthsInYear;
   for ( int y = 5761; y <= 5765; y++ )
   {
      Console::Write( " {0}:\t", y );
      iMonthsInYear = myCal->GetMonthsInYear( y, HebrewCalendar::CurrentEra );
      for ( int m = 1; m <= iMonthsInYear; m++ )
         Console::Write( "\t {0}", myCal->IsLeapMonth( y, m, HebrewCalendar::CurrentEra ) );
      Console::WriteLine();

   }
}

/*
This code produces the following output.

5761:           False   False   False   False   False   False   False   False   False   False   False   False
5762:           False   False   False   False   False   False   False   False   False   False   False   False
5763:           False   False   False   False   False   False   True    False   False   False   False   False   False
5764:           False   False   False   False   False   False   False   False   False   False   False   False
5765:           False   False   False   False   False   False   True    False   False   False   False   False   False

*/

using System;
using System.Globalization;

public class SamplesHebrewCalendar  {

   public static void Main()  {

      // Creates and initializes a HebrewCalendar.
      HebrewCalendar myCal = new HebrewCalendar();

      // Checks all the months in five years in the current era.
      int iMonthsInYear;
      for ( int y = 5761; y <= 5765; y++ )  {
         Console.Write( "{0}:\t", y );
         iMonthsInYear = myCal.GetMonthsInYear( y, HebrewCalendar.CurrentEra );
         for ( int m = 1; m <= iMonthsInYear; m++ )
            Console.Write( "\t{0}", myCal.IsLeapMonth( y, m, HebrewCalendar.CurrentEra ) );
         Console.WriteLine();
      }
   }
}

/*
This code produces the following output.

5761:           False   False   False   False   False   False   False   False   False   False   False   False
5762:           False   False   False   False   False   False   False   False   False   False   False   False
5763:           False   False   False   False   False   False   True    False   False   False   False   False   False
5764:           False   False   False   False   False   False   False   False   False   False   False   False
5765:           False   False   False   False   False   False   True    False   False   False   False   False   False

*/

Imports System.Globalization

Public Class SamplesHebrewCalendar   
   
   Public Shared Sub Main()

      ' Creates and initializes a HebrewCalendar.
      Dim myCal As New HebrewCalendar()

      ' Checks all the months in five years in the current era.
      Dim iMonthsInYear As Integer
      Dim y As Integer
      For y = 5761 To 5765
         Console.Write("{0}:" + ControlChars.Tab, y)
         iMonthsInYear = myCal.GetMonthsInYear(y, HebrewCalendar.CurrentEra)
         Dim m As Integer
         For m = 1 To iMonthsInYear
            Console.Write(ControlChars.Tab + "{0}", myCal.IsLeapMonth(y, m, HebrewCalendar.CurrentEra))
         Next m
         Console.WriteLine()
      Next y

   End Sub

End Class


'This code produces the following output.
'
'5761:           False   False   False   False   False   False   False   False   False   False   False   False
'5762:           False   False   False   False   False   False   False   False   False   False   False   False
'5763:           False   False   False   False   False   False   True    False   False   False   False   False   False
'5764:           False   False   False   False   False   False   False   False   False   False   False   False
'5765:           False   False   False   False   False   False   True    False   False   False   False   False   False

Remarks

This implementation of the HebrewCalendar class recognizes only the Hebrew years 5343 to 5999 (1583 to 2239 in the Gregorian calendar).

In every 19-year cycle that ends with a year that is evenly divisible by 19, the 3rd, 6th, 8th, 11th, 14th, 17th, and 19th years are leap years. A common year can have from 353 to 355 days, depending on the placement of Jewish holidays. A leap year can have from 383 to 385 days.

A leap month is an entire month that occurs only in a leap year. In the Hebrew calendar, Adar Beit is the only leap month.

Applies to

See also