gnu/dist/gettext/gettext-tools/examples/hello-java-awt/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/AWT 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 gnu.gettext.*;
  13
  14 public class Hello {
  15   public static void main (String[] args) {
  16     ResourceBundle catalog = ResourceBundle.getBundle("hello-java-awt");
  17     Frame frame = new Frame("Hello example");
  18     frame.addWindowListener(
  19         new WindowAdapter() {
  20           public void windowClosing (WindowEvent event) {
  21             System.exit(0);
  22           }
  23         });
  24     Label label1 = new Label(GettextResource.gettext(catalog,"Hello, world!"));
  25     Label label2 =
  26       new Label(
  27           MessageFormat.format(
  28               GettextResource.gettext(catalog,
  29                   "This program is running as process number {0}."),
  30               new Object[] { getPid() }));
  31     Button button = new Button("OK");
  32     button.addActionListener(
  33         new ActionListener() {
  34           public void actionPerformed (ActionEvent event) {
  35             System.exit(0);
  36           }
  37         });
  38     Container labels = new Container();
  39     labels.setLayout(new GridLayout(2, 1));
  40     labels.add(label1);
  41     labels.add(label2);
  42     Container buttons = new Container();
  43     buttons.setLayout(new FlowLayout(FlowLayout.RIGHT));
  44     buttons.add(button);
  45     frame.setLayout(new BorderLayout());
  46     frame.add(labels, BorderLayout.CENTER);
  47     frame.add(buttons, BorderLayout.SOUTH);
  48     frame.pack();
  49     frame.setVisible(true);
  50   }
  51
  52   /* Return the process ID of the current process.  */
  53   private static String getPid () {
  54     try {
  55       String[] args = new String[] { "/bin/sh", "-c", "echo $PPID" };
  56       Process p = Runtime.getRuntime().exec(args);
  57       InputStream p_out = p.getInputStream();
  58       String s = (new BufferedReader(new InputStreamReader(p_out))).readLine();
  59       p.destroy();
  60       if (s != null)
  61         return s;
  62     } catch (IOException e) {
  63       e.printStackTrace();
  64     }
  65     return "???";
  66   }
  67 }