The i18n Cookbook - recipies for a global society

Problem:

You want to know the Japanese era for a Gregorian date.

Solution:

Use a Japanese Calendar and DateFormatSymbols from icu4j to retrieve the Japanese year and era.

Problem:

You want to retrieve all of the era names for the Japanese calendar.

Solution:

Use the icu4j Japanese calendar and DateFormatSymbols to retrieve the era names.

 Problem:

You want a calendar that is most familiar to your Japanese users.

Solution:

The Japanese calendar is identical to the Gregorian calendar, except the year is represented by the year of the emperor's reign.  It is currently the 20th year of the Heisei emperor's reign, so the year is Heisei 20.

You can create a Japanese calendar by using icu4j .

To create a calendar object: