How do I change the date format symbols for a specified locale?

package org.kodejava.example.text;

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

public class ChangeDateFormatSymbols {
    public static void main(String[] args) {
        Locale id = new Locale("in", "ID");
        String pattern = "EEEE, dd MMM yyyy";
        Date today = new Date();

        //
        // Gets formatted date specify by the given pattern for
        // Indonesian Locale no changes for default date format
        // is applied here.
        //
        SimpleDateFormat sdf = new SimpleDateFormat(pattern, id);
        String before = sdf.format(today);
        System.out.println("Before format change: " + before);

        //
        // Create a DateFormatSymbols object for Indonesian locale.
        //
        DateFormatSymbols dfs = new DateFormatSymbols(id);

        //
        // Gets String array of default format of weekdays.
        //
        String[] days = dfs.getWeekdays();
        String newDays[] = new String[days.length];
        for (int i = 0; i < days.length; i++) {
            //
            // For each day, apply toUpperCase() method to
            // capitalized it.
            //
            newDays[i] = days[i].toUpperCase();
        }

        //
        // Set String array of weekdays.
        //
        dfs.setWeekdays(newDays);

        //
        // Gets String array of default format of short months.
        //
        String[] shortMonths = dfs.getShortMonths();
        String months[] = new String[shortMonths.length];
        for (int j = 0; j < shortMonths.length; j++) {
            //
            // For each short month, apply toUpperCase() method
            // to capitalized it.
            //
            months[j] = shortMonths[j].toUpperCase();
        }

        //
        // Set String array of short months.
        //
        dfs.setShortMonths(months);

        //
        // Create a SimpleDateFormat object by given pattern and 
        // symbol and then format the date object as String.
        //
        sdf = new SimpleDateFormat(pattern, dfs);
        String after = sdf.format(today);
        System.out.println("After change format : " + after);
    }
}

Here are the output of our program:

Before format change: Jumat, 10 Sep 2010
After change format : JUMAT, 10 SEP 2010
Wayan Saryada

Wayan Saryada

A programmer, runner, recreational diver, currently living in the island of Bali, Indonesia. Mostly programming in Java, creating web based application with Spring Framework, JPA, etc. If you need help on Java programming you can hire me on Fiverr.
Wayan Saryada

Leave a Reply