An Internationalized Swing Application : ResourceBundle « I18N « Java Tutorial

1. Java Tutorial
2. I18N
3. ResourceBundle

File: MyResources_en_US.properties
userName=User Name
password=Password
login=Login

File: MyResources_fr_CA.properties
userName=Compte
password=Mot de passe
login=Ouvrir session

File: MyResources.properties (the default)
userName=User Name
password=Password
login=Login

These files are placed in the directory specified in the class path.

import java.awt.GridLayout;
import java.util.Locale;
import java.util.ResourceBundle;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

public class MainClass {

  public static void main(String[] args) {
    Locale locale = Locale.getDefault();
    ResourceBundle rb = ResourceBundle.getBundle("MyResources", locale);
    JFrame.setDefaultLookAndFeelDecorated(true);
    JFrame frame = new JFrame("I18N Test");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setLayout(new GridLayout(3, 2));
    frame.add(new JLabel(rb.getString("userName")));
    frame.add(new JTextField());
    frame.add(new JLabel(rb.getString("password")));
    frame.add(new JPasswordField());
    frame.add(new JButton(rb.getString("login")));
    frame.pack();
    frame.setVisible(true);
  }
}