What are alternatives to ResourceBundle and how do they compare?

ResourceBundle is commonly used in Java for localizing applications, but there are alternatives that offer different features and capabilities. This document explores some of these alternatives and compares them, highlighting their use cases.
Java localization, ResourceBundle alternatives, i18n libraries, properties files, message formatting
// Example of using a properties file as an alternative to ResourceBundle import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.util.HashMap; import java.util.Map; import java.util.Properties; public class LocalizationExample { private static Map messages = new HashMap<>(); static { try (InputStream input = new FileInputStream("messages.properties")) { Properties props = new Properties(); props.load(input); for (String key : props.stringPropertyNames()) { messages.put(key, props.getProperty(key)); } } catch (IOException e) { e.printStackTrace(); } } public static String getMessage(String key) { return messages.getOrDefault(key, "Message not found"); } public static void main(String[] args) { System.out.println(getMessage("greeting")); // Output will be based on messages.properties } }

Java localization ResourceBundle alternatives i18n libraries properties files message formatting