JapaneseCalendar.GetDayOfYear メソッドとは何？わかりやすく解説 Weblio辞書

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JapaneseCalendar.GetDayOfYear メソッド

指定した DateTime の年間積算日を返します。

名前空間: System.Globalization
アセンブリ: mscorlib (mscorlib.dll 内)
構文

Visual Basic (宣言)

Public Overrides Function
 GetDayOfYear ( _
    time As DateTime _
) As Integer

Visual Basic (使用法)

Dim instance As JapaneseCalendar
Dim time As DateTime
Dim returnValue As Integer

returnValue = instance.GetDayOfYear(time)

public override int GetDayOfYear (
    DateTime time
)

C++

public:
virtual int GetDayOfYear (
    DateTime time
) override

public int GetDayOfYear (
    DateTime time
)

JScript

public override function GetDayOfYear (
    time : DateTime
) : int

パラメータ

time: 読み取る対象の DateTime。

戻り値
指定された DateTime の年間積算日を表す 1 ～ 366 の整数。

解説

年間積算日とは、その年の 1 日目からの日数を表します。たとえば、最初の月の最初の日の GetDayOfYear は 1 を返し、最後の月の最後の日の GetDayOfYear はその年の合計日数を返します。これは、GetDaysInYear によって返される値と同じです。

使用例

DateTime のいくつかのコンポーネントの値を和暦で表示する例を次に示します。

Visual Basic

Imports System
Imports System.Globalization


Public Class SamplesJapaneseCalendar   

   Public Shared Sub Main()

      ' Sets a DateTime to April 3, 2002 of the Gregorian calendar.
      Dim myDT As New DateTime(2002,
 4, 3, New GregorianCalendar())

      ' Creates an instance of the JapaneseCalendar.
      Dim myCal As New JapaneseCalendar()

      ' Displays the values of the DateTime.
      Console.WriteLine("April 3, 2002 of the Gregorian calendar
 equals the following in the Japanese calendar:")
      DisplayValues(myCal, myDT)

      ' Adds two years and ten months.
      myDT = myCal.AddYears(myDT, 2)
      myDT = myCal.AddMonths(myDT, 10)

      ' Displays the values of the DateTime.
      Console.WriteLine("After adding two years and ten months:")
      DisplayValues(myCal, myDT)

   End Sub 'Main

   Public Shared Sub DisplayValues(myCal
 As Calendar, myDT As DateTime)
      Console.WriteLine("   Era:        {0}", myCal.GetEra(myDT))
      Console.WriteLine("   Year:       {0}", myCal.GetYear(myDT))
      Console.WriteLine("   Month:      {0}", myCal.GetMonth(myDT))
      Console.WriteLine("   DayOfYear:  {0}", myCal.GetDayOfYear(myDT))
      Console.WriteLine("   DayOfMonth: {0}", myCal.GetDayOfMonth(myDT))
      Console.WriteLine("   DayOfWeek:  {0}", myCal.GetDayOfWeek(myDT))
      Console.WriteLine()
   End Sub 'DisplayValues

End Class 'SamplesJapaneseCalendar
 


'This code produces the following output.

'

'April 3, 2002 of the Gregorian calendar equals the following in the
 Japanese calendar:
'   Era:        4
'   Year:       14
'   Month:      4
'   DayOfYear:  93
'   DayOfMonth: 3
'   DayOfWeek:  Wednesday
'
'After adding two years and ten months:
'   Era:        4
'   Year:       17
'   Month:      2
'   DayOfYear:  34
'   DayOfMonth: 3
'   DayOfWeek:  Thursday

using System;
using System.Globalization;


public class SamplesJapaneseCalendar  {

   public static void Main()
  {

      // Sets a DateTime to April 3, 2002 of the Gregorian calendar.
      DateTime myDT = new DateTime( 2002, 4, 3, new
 GregorianCalendar() );

      // Creates an instance of the JapaneseCalendar.
      JapaneseCalendar myCal = new JapaneseCalendar();

      // Displays the values of the DateTime.
      Console.WriteLine( "April 3, 2002 of the Gregorian calendar equals the
 following in the Japanese calendar:" );
      DisplayValues( myCal, myDT );

      // Adds two years and ten months.
      myDT = myCal.AddYears( myDT, 2 );
      myDT = myCal.AddMonths( myDT, 10 );

      // Displays the values of the DateTime.
      Console.WriteLine( "After adding two years and ten months:" );
      DisplayValues( myCal, myDT );

   }

   public static void DisplayValues(
 Calendar myCal, DateTime myDT )  {
      Console.WriteLine( "   Era:        {0}", myCal.GetEra( myDT ) );
      Console.WriteLine( "   Year:       {0}", myCal.GetYear( myDT ) );
      Console.WriteLine( "   Month:      {0}", myCal.GetMonth( myDT ) );
      Console.WriteLine( "   DayOfYear:  {0}", myCal.GetDayOfYear( myDT
 ) );
      Console.WriteLine( "   DayOfMonth: {0}", myCal.GetDayOfMonth( myDT
 ) );
      Console.WriteLine( "   DayOfWeek:  {0}", myCal.GetDayOfWeek( myDT
 ) );
      Console.WriteLine();
   }

}

/*
This code produces the following output.

April 3, 2002 of the Gregorian calendar equals the following in
 the Japanese calendar:
   Era:        4
   Year:       14
   Month:      4
   DayOfYear:  93
   DayOfMonth: 3
   DayOfWeek:  Wednesday

After adding two years and ten months:
   Era:        4
   Year:       17
   Month:      2
   DayOfYear:  34
   DayOfMonth: 3
   DayOfWeek:  Thursday

*/

C++

using namespace System;
using namespace System::Globalization;
void DisplayValues( Calendar^ myCal, DateTime myDT )
{
   Console::WriteLine( "   Era:        {0}", myCal->GetEra( myDT ) );
   Console::WriteLine( "   Year:       {0}", myCal->GetYear( myDT )
 );
   Console::WriteLine( "   Month:      {0}", myCal->GetMonth( myDT )
 );
   Console::WriteLine( "   DayOfYear:  {0}", myCal->GetDayOfYear( myDT
 ) );
   Console::WriteLine( "   DayOfMonth: {0}", myCal->GetDayOfMonth( myDT
 ) );
   Console::WriteLine( "   DayOfWeek:  {0}", myCal->GetDayOfWeek( myDT
 ) );
   Console::WriteLine();
}

int main()
{
   
   // Sets a DateTime to April 3, 2002 of the Gregorian calendar.
   DateTime myDT = DateTime(2002,4,3,gcnew GregorianCalendar);
   
   // Creates an instance of the JapaneseCalendar.
   JapaneseCalendar^ myCal = gcnew JapaneseCalendar;
   
   // Displays the values of the DateTime.
   Console::WriteLine( "April 3, 2002 of the Gregorian calendar equals the following in
 the Japanese calendar:" );
   DisplayValues( myCal, myDT );
   
   // Adds two years and ten months.
   myDT = myCal->AddYears( myDT, 2 );
   myDT = myCal->AddMonths( myDT, 10 );
   
   // Displays the values of the DateTime.
   Console::WriteLine( "After adding two years and ten months:" );
   DisplayValues( myCal, myDT );
}

/*
This code produces the following output.

April 3, 2002 of the Gregorian calendar equals the following in
 the Japanese calendar:
   Era:        4
   Year:       14
   Month:      4
   DayOfYear:  93
   DayOfMonth: 3
   DayOfWeek:  Wednesday

After adding two years and ten months:
   Era:        4
   Year:       17
   Month:      2
   DayOfYear:  34
   DayOfMonth: 3
   DayOfWeek:  Thursday

*/

import System.*;
import System.Globalization.*;

public class SamplesJapaneseCalendar
{   
    public static void main(String[]
 args)
    {
        // Sets a DateTime to April 3, 2002 of the Gregorian calendar.
        DateTime myDT =  new DateTime(2002, 4, 3, new
 GregorianCalendar());

        // Creates an instance of the JapaneseCalendar.
        JapaneseCalendar myCal =  new JapaneseCalendar();

        // Displays the values of the DateTime.
        Console.WriteLine("April 3, 2002 of the Gregorian calendar equals"
            + " the following in the Japanese calendar:");
        DisplayValues(myCal, myDT);

        // Adds two years and ten months.
        myDT = myCal.AddYears(myDT, 2);
        myDT = myCal.AddMonths(myDT, 10);

        // Displays the values of the DateTime.
        Console.WriteLine("After adding two years and ten months:");
        DisplayValues(myCal, myDT);
    } //main    
   
    public static void DisplayValues(Calendar
 myCal, DateTime myDT)
    {
        Console.WriteLine("   Era:        {0}",
            System.Convert.ToString(myCal.GetEra(myDT)));
        Console.WriteLine("   Year:       {0}", 
            System.Convert.ToString(myCal.GetYear(myDT)));
        Console.WriteLine("   Month:      {0}",
            System.Convert.ToString(myCal.GetMonth(myDT)));
        Console.WriteLine("   DayOfYear:  {0}",
            System.Convert.ToString(myCal.GetDayOfYear(myDT)));
        Console.WriteLine("   DayOfMonth: {0}", 
            System.Convert.ToString(myCal.GetDayOfMonth(myDT)));
        Console.WriteLine("   DayOfWeek:  {0}",
            System.Convert.ToString(myCal.GetDayOfWeek(myDT)));
        Console.WriteLine();
    } //DisplayValues
} //SamplesJapaneseCalendar 

/*
This code produces the following output.

April 3, 2002 of the Gregorian calendar equals the following in
 the 
    Japanese calendar:
   Era:        4
   Year:       14
   Month:      4
   DayOfYear:  93
   DayOfMonth: 3
   DayOfWeek:  Wednesday

After adding two years and ten months:
   Era:        4
   Year:       17
   Month:      2
   DayOfYear:  34
   DayOfMonth: 3
   DayOfWeek:  Thursday

*/

プラットフォーム

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0
.NET Compact Framework
サポート対象 : 2.0、1.0

参照

関連項目
JapaneseCalendar クラス
JapaneseCalendar メンバ
System.Globalization 名前空間
DateTime.DayOfYear
GetEra
GetYear
GetMonth
GetDayOfMonth
GetDayOfWeek
Calendar.GetWeekOfYear

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JapaneseCalendar.GetDayOfYear メソッドとは？ わかりやすく解説

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JapaneseCalendar.GetDayOfYear メソッドとは？わかりやすく解説