System tray icon : TrayIcon « JDK 6 « Java

System tray icon


import java.awt.HeadlessException;
import java.awt.Image;
import java.awt.MenuItem;
import java.awt.Panel;
import java.awt.PopupMenu;
import java.awt.SystemTray;
import java.awt.TrayIcon;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;

import javax.swing.Icon;
import javax.swing.JOptionPane;
import javax.swing.plaf.metal.MetalIconFactory;

public class SysTray {
  public static void main(String[] args) throws Exception {
    new SysTray().installSystemTray();

  public void installSystemTray() throws Exception {
    PopupMenu menu = new PopupMenu();
    MenuItem exit = new MenuItem("Exit");
    exit.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
    TrayIcon icon = new TrayIcon(getImage(), "Java application as a tray icon", menu);
    icon.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        JOptionPane.showMessageDialog(null, "Hi!");
    icon.displayMessage("Attention", "Please click here", TrayIcon.MessageType.WARNING);

  private Image getImage() throws HeadlessException {
    Icon defaultIcon = MetalIconFactory.getTreeHardDriveIcon();
    Image img = new BufferedImage(defaultIcon.getIconWidth(), defaultIcon.getIconHeight(),
    defaultIcon.paintIcon(new Panel(), img.getGraphics(), 0, 0);
    return img;



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