JulianCalendar::IsLeapYear Method (Int32, Int32)
Determines whether the specified year in the specified era is a leap year.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- year
- Type: System::Int32
An integer that represents the year.
- era
- Type: System::Int32
An integer that represents the era.
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | year is outside the range supported by the calendar. -or- era is outside the range supported by the calendar. |
Unlike the Gregorian calendar, the Julian calendar defines a leap year as a year that is evenly divisible by four with no exceptions. Therefore, the calendar is inaccurate by one day every 128 years. For example, the year 1999 was not a leap year, but the year 2000 was. A common year has 365 days and a leap year has 366 days.
The following example calls IsLeapYear for five years in each of the eras.
using namespace System; using namespace System::Globalization; int main() { // Creates and initializes a JulianCalendar. JulianCalendar^ myCal = gcnew JulianCalendar; // Displays the header. Console::Write( "YEAR\t" ); for ( int y = 2001; y <= 2005; y++ ) Console::Write( "\t {0}", y ); Console::WriteLine(); // Checks five years in the current era. Console::Write( "CurrentEra:" ); for ( int y = 2001; y <= 2005; y++ ) Console::Write( "\t {0}", myCal->IsLeapYear( y, JulianCalendar::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 = 2001; y <= 2005; y++ ) Console::Write( "\t {0}", myCal->IsLeapYear( y, myCal->Eras[ i ] ) ); Console::WriteLine(); } } /* This code produces the following output. YEAR 2001 2002 2003 2004 2005 CurrentEra: False False False True False Era 1: False False False True False */
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.