discussing internationalization, word “localization” comes to the front, which is the process of adapting software for a specific region or language by adding locale-specific components and translating text. It involves changing the language interaction, display of numbers, dates, currency, and so on. For better visualization, just go through the example below. Suppose, we have a program “InternationalizationDemo” in which the text to display is hard coded so it always displays the same text in English Language, no matter a Spanish person wants these texts in its own mother language. Internationalization
Demo.java: (Without Internationalization
Support)

import java.util.*;
public class
InternationalizationDemo {
public static void main(String[]
args) {
System.out.println(“The text
displayed is specific to
locale”+”
(“+Locale.getDefault().
getDisplayLanguage()+”,
“+Locale.getDefault().
getDisplayCountry ()+”).\n”);
System.out.println(“Hello, how
are you?”);
System.out.println(“Thanks to
visit.”);
}
}

Now you want this rogram to get internationalized so that itmay response according to the specific region and country i.e. locale (Remember no code changes are required for different locale). Just follow these steps:

1. Create Properties
Files:

Create “. properties” file containing a set of key and value pair. Remember to keep the keys same in all the files and provide values according to the locale in different files.

Properties Files Naming Convention:

Creating a default properties file is a good practice, which is available to the program by default. You can give any name to this file but remember to use the same name that your ResourceBundle uses (MessageBundle. properties file in our example). While naming other properties files follow the syntax:

PropertiesFileNameUsedIn ResourceBundle_language Code_countryCode.properties

Let’s create these files.
Default file:

Write down the following lines in a plain-text file (Default version) and save it as