HijriCalendar.IsLeapYear(Int32, Int32) Method

Reference

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:: HijriCalendar.cs

Source:: HijriCalendar.cs

Source:: HijriCalendar.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

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

public:
 override bool IsLeapYear(int year, int era);

public override bool IsLeapYear(int year, int era);

override this.IsLeapYear : int * int -> bool

Public Overrides Function IsLeapYear (year As Integer, era As Integer) As Boolean

Parameters

year: Int32

An integer that represents the year.

era: Int32

An integer that represents the era.

Returns

Boolean

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

Exceptions

ArgumentOutOfRangeException

era is outside the range supported by this calendar.

-or-

year is outside the range supported by this calendar.

Examples

The following code example calls the IsLeapYear method for five years in each of the eras.

using namespace System;
using namespace System::Globalization;
int main()
{
   
   // Creates and initializes a HijriCalendar.
   HijriCalendar^ myCal = gcnew HijriCalendar;
   
   // Displays the header.
   Console::Write( "YEAR\t" );
   for ( int y = 1421; y <= 1425; y++ )
      Console::Write( "\t {0}", y );
   Console::WriteLine();
   
   // Checks five years in the current era.
   Console::Write( "CurrentEra:" );
   for ( int y = 1421; y <= 1425; y++ )
      Console::Write( "\t {0}", myCal->IsLeapYear( y, HijriCalendar::CurrentEra ) );
   Console::WriteLine();
   
   // Checks five years in each of the eras.
   for ( int i = 0; i < myCal->Eras->Length; i++ )
   {
      Console::Write( "Era {0}:\t", myCal->Eras[ i ] );
      for ( int y = 1421; y <= 1425; y++ )
         Console::Write( "\t {0}", myCal->IsLeapYear( y, myCal->Eras[ i ] ) );
      Console::WriteLine();

   }
}

/*
This code produces the following output.

YEAR            1421    1422    1423    1424    1425
CurrentEra:     False   False   True    False   False
Era 1:          False   False   True    False   False

*/

using System;
using System.Globalization;

public class SamplesHijriCalendar  {

   public static void Main()  {

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

      // Displays the header.
      Console.Write( "YEAR\t" );
      for ( int y = 1421; y <= 1425; y++ )
         Console.Write( "\t{0}", y );
      Console.WriteLine();

      // Checks five years in the current era.
      Console.Write( "CurrentEra:" );
      for ( int y = 1421; y <= 1425; y++ )
         Console.Write( "\t{0}", myCal.IsLeapYear( y, HijriCalendar.CurrentEra ) );
      Console.WriteLine();

      // Checks five years in each of the eras.
      for ( int i = 0; i < myCal.Eras.Length; i++ )  {
         Console.Write( "Era {0}:\t", myCal.Eras[i] );
         for ( int y = 1421; y <= 1425; y++ )
            Console.Write( "\t{0}", myCal.IsLeapYear( y, myCal.Eras[i] ) );
         Console.WriteLine();
      }
   }
}

/*
This code produces the following output.

YEAR            1421    1422    1423    1424    1425
CurrentEra:     False   False   True    False   False
Era 1:          False   False   True    False   False

*/

Imports System.Globalization

Public Class SamplesHijriCalendar   
   
   Public Shared Sub Main()

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

      ' Displays the header.
      Console.Write("YEAR" + ControlChars.Tab)
      Dim y As Integer
      For y = 1421 To 1425
         Console.Write(ControlChars.Tab + "{0}", y)
      Next y
      Console.WriteLine()

      ' Checks five years in the current era.
      Console.Write("CurrentEra:")
      For y = 1421 To 1425
         Console.Write(ControlChars.Tab + "{0}", myCal.IsLeapYear(y, HijriCalendar.CurrentEra))
      Next y
      Console.WriteLine()

      ' Checks five years in each of the eras.
      Dim i As Integer
      For i = 0 To myCal.Eras.Length - 1
         Console.Write("Era {0}:" + ControlChars.Tab, myCal.Eras(i))
         For y = 1421 To 1425
            Console.Write(ControlChars.Tab + "{0}", myCal.IsLeapYear(y, myCal.Eras(i)))
         Next y
         Console.WriteLine()
      Next i

   End Sub

End Class


'This code produces the following output.
'
'YEAR            1421    1422    1423    1424    1425
'CurrentEra:     False   False   True    False   False
'Era 1:          False   False   True    False   False

Remarks

In every 30-year cycle that ends with a year that is evenly divisible by 30, the 2nd, 5th, 7th, 10th, 13th, 16th, 18th, 21st, 24th, 26th, and 29th years are leap years. A common year has 354 days and a leap year has 355 days.

Applies to

Product	Versions
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.3, 1.4, 1.6, 2.0, 2.1
UWP	10.0

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