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JapaneseCalendar.IsLeapMonth(Int32, Int32, Int32) Method

Definition

Namespace:
System.Globalization
Assemblies:
mscorlib.dll, System.Globalization.Calendars.dll
Assemblies:
netstandard.dll, System.Runtime.dll
Assembly:
System.Globalization.Calendars.dll
Assembly:
System.Runtime.dll
Assembly:
mscorlib.dll
Assembly:
netstandard.dll
Source:
JapaneseCalendar.cs
Source:
JapaneseCalendar.cs
Source:
JapaneseCalendar.cs
Source:
JapaneseCalendar.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 12 that represents the month.

era
Int32

An integer that represents the era.

Returns

Boolean

This method always returns false, unless overridden by a derived class.

Exceptions

ArgumentOutOfRangeException

year is outside the range supported by the calendar.

-or-

month is outside the range supported by the calendar.

-or-

era is outside the range supported by the calendar.

Examples

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

using System;
using System.Globalization;

public class SamplesJapaneseCalendar  {

   public static void Main()  {

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

      // Checks all the months in five years in the current era.
      int iMonthsInYear;
      for ( int y = 1; y <= 5; y++ )  {
         Console.Write( "{0}:\t", y );
         iMonthsInYear = myCal.GetMonthsInYear( y, JapaneseCalendar.CurrentEra );
         for ( int m = 1; m <= iMonthsInYear; m++ )
            Console.Write( "\t{0}", myCal.IsLeapMonth( y, m, JapaneseCalendar.CurrentEra ) );
         Console.WriteLine();
      }
   }
}

/*
This code produces the following output.

1:              False   False   False   False   False   False   False   False   False   False   False   False
2:              False   False   False   False   False   False   False   False   False   False   False   False
3:              False   False   False   False   False   False   False   False   False   False   False   False
4:              False   False   False   False   False   False   False   False   False   False   False   False
5:              False   False   False   False   False   False   False   False   False   False   False   False

*/

Imports System.Globalization

Public Class SamplesJapaneseCalendar   
   
   Public Shared Sub Main()

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

      ' Checks all the months in five years in the current era.
      Dim iMonthsInYear As Integer
      Dim y As Integer
      For y = 1 To 5
         Console.Write("{0}:" + ControlChars.Tab, y)
         iMonthsInYear = myCal.GetMonthsInYear(y, JapaneseCalendar.CurrentEra)
         Dim m As Integer
         For m = 1 To iMonthsInYear
            Console.Write(ControlChars.Tab + "{0}", myCal.IsLeapMonth(y, m, JapaneseCalendar.CurrentEra))
         Next m
         Console.WriteLine()
      Next y

   End Sub

End Class


'This code produces the following output.
'
'1:              False   False   False   False   False   False   False   False   False   False   False   False
'2:              False   False   False   False   False   False   False   False   False   False   False   False
'3:              False   False   False   False   False   False   False   False   False   False   False   False
'4:              False   False   False   False   False   False   False   False   False   False   False   False
'5:              False   False   False   False   False   False   False   False   False   False   False   False

Remarks

Leap years in the Japanese calendar correspond to the same leap years in the Gregorian calendar. A leap year in the Gregorian calendar is defined as a Gregorian year that is evenly divisible by four, except if it is divisible by 100. However, Gregorian years that are divisible by 400 are leap years. A common year has 365 days and a leap year has 366 days.

A leap month is an entire month that occurs only in a leap year. The Japanese calendar does not have any leap months.

Applies to

See also