JapaneseCalendar.IsLeapYear(Int32, Int32) JapaneseCalendar.IsLeapYear(Int32, Int32) JapaneseCalendar.IsLeapYear(Int32, Int32) JapaneseCalendar.IsLeapYear(Int32, Int32) Method

定義

指定した時代 (年号) の指定した年が閏年かどうかを確認します。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

パラメーター

year
Int32 Int32 Int32 Int32

年を表す整数。An integer that represents the year.

era
Int32 Int32 Int32 Int32

時代 (年号) を表す整数。An integer that represents the era.

戻り値

指定した年が閏年である場合は true。それ以外の場合は falsetrue, if the specified year is a leap year; otherwise, false.

例外

year がカレンダーでサポートされている範囲外です。year is outside the range supported by the calendar.

または-or- era がカレンダーでサポートされている範囲外です。era is outside the range supported by the calendar.

次の例ではIsLeapYear時代 (年号) のそれぞれに 5 年以上にします。The following example calls IsLeapYear for five years in each of the eras. 出力例では現在の時代 (年号) が、Reiwa の時代 (年号) です。The current era in the example output is the Reiwa era.

using namespace System;
using namespace System::Globalization;

int main()
{   
   // Creates and initializes a JapaneseCalendar.
   JapaneseCalendar^ myCal = gcnew JapaneseCalendar;
   
   // Displays the header.
   Console::Write( "YEAR\t" );
   for ( int y = 1; y <= 5; y++ )
      Console::Write( "\t {0}", y );
   Console::WriteLine();
   
   // Checks five years in the current era.
   Console::Write( "CurrentEra:" );
   for ( int y = 1; y <= 5; y++ )
      Console::Write( "\t {0}", myCal->IsLeapYear( y, JapaneseCalendar::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 = 1; y <= 5; y++ )
         Console::Write( "\t {0}", myCal->IsLeapYear( y, myCal->Eras[ i ] ) );
      Console::WriteLine();
   }
}
/*
This code produces the following output.

YEAR            1       2       3       4       5
CurrentEra:     False   True    False   False   False
Era 5:          False   True    False   False   False
Era 4:          False   False   False   True    False
Era 3:          False   False   True    False   False
Era 2:          True    False   False   False   True
Era 1:          True    False   False   False   True

*/
using System;
using System.Globalization;

public class SamplesJapaneseCalendar  
{
   public static void Main()  
   {
      // Creates and initializes a JapaneseCalendar.
      JapaneseCalendar myCal = new JapaneseCalendar();

      // Displays the header.
      Console.Write( "YEAR\t" );
      for ( int y = 1; y <= 5; y++ )
         Console.Write( "\t{0}", y );
      Console.WriteLine();

      // Checks five years in the current era.
      Console.Write( "CurrentEra:" );
      for ( int y = 1; y <= 5; y++ )
         Console.Write( "\t{0}", myCal.IsLeapYear( y, JapaneseCalendar.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 = 1; y <= 5; y++ )
            Console.Write( "\t{0}", myCal.IsLeapYear( y, myCal.Eras[i] ) );
         Console.WriteLine();
      }
   }
}
/*
This code produces the following output.

YEAR            1       2       3       4       5
CurrentEra:     False   True    False   False   False
Era 5:          False   True    False   False   False
Era 4:          False   False   False   True    False
Era 3:          False   False   True    False   False
Era 2:          True    False   False   False   True
Era 1:          True    False   False   False   True

*/
Imports System.Globalization

Public Class SamplesJapaneseCalendar      
   Public Shared Sub Main()
      ' Creates and initializes a JapaneseCalendar.
      Dim myCal As New JapaneseCalendar()

      ' Displays the header.
      Console.Write("YEAR" + ControlChars.Tab)
      Dim y As Integer
      For y = 1 To 5
         Console.Write(ControlChars.Tab + "{0}", y)
      Next
      Console.WriteLine()

      ' Checks five years in the current era.
      Console.Write("CurrentEra:")
      For y = 1 To 5
         Console.Write(ControlChars.Tab + "{0}", myCal.IsLeapYear(y, JapaneseCalendar.CurrentEra))
      Next
      Console.WriteLine()

      ' Checks five years in each of the eras.
      For i As Integer = 0 To myCal.Eras.Length - 1
         Console.Write("Era {0}:" + ControlChars.Tab, myCal.Eras(i))
         For y = 1 To 5
            Console.Write(ControlChars.Tab + "{0}", myCal.IsLeapYear(y, myCal.Eras(i)))
         Next
         Console.WriteLine()
      Next 
   End Sub 
End Class 
'This code produces the following output.
'
'      YEAR            1       2       3       4       5
'      CurrentEra:     False   True    False   False   False
'      Era 5:          False   True    False   False   False
'      Era 4:          False   False   False   True    False
'      Era 3:          False   False   True    False   False
'      Era 2:          True    False   False   False   True
'      Era 1:          True    False   False   False   True

注釈

和暦の閏年は、グレゴリオ暦の閏年と同じ年に対応します。Leap years in the Japanese calendar correspond to the same leap years in the Gregorian calendar. グレゴリオ暦の閏年は、100 で割り切れる場合を除き、4 で割り切れるグレゴリオ暦の年として定義されます。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. ただし、400 で割り切れるグレゴリオ暦の年は閏年です。However, Gregorian years that are divisible by 400 are leap years. 平年は 365 日で、閏年は 366 日です。A common year has 365 days and a leap year has 366 days.

適用対象

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