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Wanted to know more about Calendar.getInstance(). I can create Date instance with constroctor, but why not a Calendar instance? Why Calendar designed to use a factory method and why it has been abstract class.

Please share the reason behind it.

My Question is very simple: If we have new operator on Date class, why not for Calender. what was the idea behind a static method to create instance.

Many Thanks,

Chowdappa
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  • I am really not getting the answer for this question. People who closed, can you answer me. REASON behind choosing static method getInstance in Calender. – Chowdappa Mar 10 '15 at 09:12

1 Answers1

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There are different Calendar implementations. Calendard.getInstance() is locale sensitive and returns the suitable implementation for the country of your default locale.

The documentation says: "The Calendar returned is based on the current time in the default time zone with the default locale."

According to source code you get a BuddhistCalendar for language "th" and country "TH" or a JapaneseImperialCalendar for Japan with variant "JP". Otherwise you get a GregorianCalendar instance.

You are free to create a GregorianCalendar instance with its constructor.

Udo
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