Java Cookbook

Creating a Dialog with I18N Resources

Problem

You want to internationalize a dialog.

Solution

Use a ResourceBundle.

Discussion

This is similar to the use of ResourceBundle in the previous recipes, and shows the code for an internationalized version of the JOptionDemo program from Section 13.8.

package com.darwinsys.util;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;

/**
 * I18N'd JOptionPane
 */
public class JOptionDemo extends JFrame {

    ResourceBundle rb;

    // Constructor
    JOptionDemo(String s) {
        super(s);

        Container cp = getContentPane(  );
        cp.setLayout(new FlowLayout(  ));

        rb = ResourceBundle.getBundle("Widgets");

        JButton b = I18N.mkButton(rb, "getButton");
        b.addActionListener(new ActionListener(  ) {
            public void actionPerformed(ActionEvent e) {
                JOptionPane.showMessageDialog(
                    JOptionDemo.this,
                    rb.getString("dialog1.text"),
                    rb.getString("dialog1.title"),
                    JOptionPane.INFORMATION_MESSAGE);
            }
        });
        cp.add(b);

        b = I18N.mkButton(rb, "goodbye");
        b.addActionListener(new ActionListener(  ) {
            public void actionPerformed(ActionEvent e) {
                System.exit(0);
            }
        });
        cp.add(b);

        // the main window
        setSize(200, 150);
        pack(  );
    }

    public static void main(String[] arg) {
        JOptionDemo x = new JOptionDemo("Testing 1 2 3...");
        x.setVisible(true);
    }
}