gnu/dist/gettext/gettext-tools/examples/hello-java-swing/Hello.java

   1 // Example for use of GNU gettext.
   2 // Copyright (C) 2003 Free Software Foundation, Inc.
   3 // This file is in the public domain.
   4 //
   5 // Source code of the Java/Swing program.
   6
   7 import java.util.*;
   8 import java.io.*;
   9 import java.text.*;
  10 import java.awt.*;
  11 import java.awt.event.*;
  12 import javax.swing.*;
  13 import gnu.gettext.*;
  14
  15 public class Hello {
  16   public static void main (String[] args) {
  17     ResourceBundle catalog = ResourceBundle.getBundle("hello-java-swing");
  18     JFrame frame = new JFrame("Hello example");
  19     frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
  20     JLabel label1 =
  21       new JLabel(GettextResource.gettext(catalog,"Hello, world!"));
  22     JLabel label2 =
  23       new JLabel(
  24           MessageFormat.format(
  25               GettextResource.gettext(catalog,
  26                   "This program is running as process number {0}."),
  27               new Object[] { getPid() }));
  28     JButton button = new JButton("OK");
  29     button.addActionListener(
  30         new ActionListener() {
  31           public void actionPerformed (ActionEvent event) {
  32             System.exit(0);
  33           }
  34         });
  35     JPanel labels = new JPanel();
  36     labels.setLayout(new GridLayout(2, 1));
  37     labels.add(label1);
  38     labels.add(label2);
  39     JPanel buttons = new JPanel();
  40     buttons.setLayout(new FlowLayout(FlowLayout.RIGHT));
  41     buttons.add(button);
  42     frame.getContentPane().setLayout(new BorderLayout());
  43     frame.getContentPane().add(labels, BorderLayout.CENTER);
  44     frame.getContentPane().add(buttons, BorderLayout.SOUTH);
  45     frame.pack();
  46     frame.setVisible(true);
  47   }
  48
  49   /* Return the process ID of the current process.  */
  50   private static String getPid () {
  51     try {
  52       String[] args = new String[] { "/bin/sh", "-c", "echo $PPID" };
  53       Process p = Runtime.getRuntime().exec(args);
  54       InputStream p_out = p.getInputStream();
  55       String s = (new BufferedReader(new InputStreamReader(p_out))).readLine();
  56       p.destroy();
  57       if (s != null)
  58         return s;
  59     } catch (IOException e) {
  60       e.printStackTrace();
  61     }
  62     return "???";
  63   }
  64 }