import java.util.*;

public class CalendarTest {
	public static void main(String[] args) {
		Calendar cal = Calendar.getInstance(new Locale("ja", "JP", "JP"));
		System.out.println("Calendar Type: " + cal.getCalendarType());
        System.out.println("Eras:");
		//Map<String, Integer> map = cal.getDisplayNames(Calendar.ERA, Calendar.LONG, Locale.getDefault(Locale.Category.FORMAT));
		Map<String, Integer> map = cal.getDisplayNames(Calendar.ERA, Calendar.LONG, new Locale("ja", "JP", "JP"));
		Set<String> keyset = map.keySet();
		Iterator<String> it = keyset.iterator();
		while (it.hasNext()) {
			System.out.println(it.next());
		}
	}
}