Show day of the week for different locale.

dayOfWeek.java

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

public class Main {

    public static void main(String[] args) {
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy年MM月dd日 E曜日", Locale.JAPAN);
        Date now = new Date();

        System.out.println(formatter.format(now));
    }
}