Tray Icon in Java 6

I am much biased to web applications, the reason is that the new approaches that emrges every day facinated me a lot. But I am interested in destop based application (think client) also. When considering a Java application, taking the adavantage of OS System Tray/ Task Bar was not so easy until Java 6. But the latest release helped developers to a great extend. Here I have gicen a small Java program that can do the wonder of System Tray utilization, thanks Java 6.

import java.awt.Image;
import java.awt.MenuItem;
import java.awt.PopupMenu;
import java.awt.SystemTray;
import java.awt.Toolkit;
import java.awt.TrayIcon;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

import javax.swing.JOptionPane;

/**
* ApplicationExecuter
* @author Rajeev Nair
*/
public class ApplicationExecuter {

 /**
  * main method
  * @param args - any command line arguments
  */
 public static void main(String args[]){
  
  if (!SystemTray.isSupported()){  
   System.out.println("System tray not supported on this platform");  
   System.exit(1);
  } //end if
  
  try {
   doTrayStartUp();
  } catch(Exception exp){
   System.out.println("Exception occured while building the tray entry :(");  
   exp.printStackTrace();
  } //end exception
  
 } //end main
 
 /**
  * Creates a tray icon.
  * @return TrayIcon
  */
 private static TrayIcon createTrayIcon()  { 
  // I have used an absolute path for image here .. :(
       Image image = Toolkit.getDefaultToolkit().getImage("C:\\Apps\\Icons\\app.gif");  
       PopupMenu popup = createTrayMenu();  
       TrayIcon ti = new TrayIcon(image, "Example TrayIcon :)", popup);  
       ti.setImageAutoSize(true);  
       return ti;  
   } //end createTrayIcon
 
 /**
  * Creates a popup menu.
  * @return PopupMenu
  */
 private static PopupMenu createTrayMenu()  {
  // creating popup
  PopupMenu menu = new PopupMenu();
  
  // creating an entry element
  MenuItem aboutItem = new MenuItem("About Example App!!!");  
  aboutItem.addActionListener(new ActionListener(){
         public void actionPerformed(ActionEvent e)   {  
          JOptionPane.showMessageDialog(null, "Hello, :)",
                        "About Example App!!!", JOptionPane.INFORMATION_MESSAGE);
            }
       }); 
  // addding an entry to popup menu
       menu.add(aboutItem); 
      
       // adding a separator
       menu.addSeparator();
      
       // creating an entry element
       MenuItem exitItem = new MenuItem("Exit");  
       exitItem.addActionListener(new ActionListener(){
         public void actionPerformed(ActionEvent e)   {  
                System.exit(0);  
            }
       });
       // addding an entry to popup menu
       menu.add(exitItem);  
       return menu;  
      
   }  //end createTrayMenu
 
 
 /**
  * Building the tray entry
  * @throws Exception
  */
 private static void doTrayStartUp() throws Exception{
  
   SystemTray sysTray = SystemTray.getSystemTray();
   TrayIcon trayIcon = createTrayIcon();  
        sysTray.add(trayIcon);  
        trayIcon.displayMessage("Example App",  "Example App started", TrayIcon.MessageType.INFO);  
       
        // add mouse listners
        trayIcon.addMouseListener(new MouseListener(){
        public void mouseClicked(MouseEvent e) {}

   public void mouseEntered(MouseEvent e) {}

   public void mouseExited(MouseEvent e) {}

   public void mousePressed(MouseEvent e) {
    if(e.getButton() == 1){
     // if left button pressed
     JOptionPane.showMessageDialog(null, "You have pressed the left button of the mouse.",
                          "Example App!!!", JOptionPane.INFORMATION_MESSAGE);
    } //end if
   }

   public void mouseReleased(MouseEvent e) {}
        });
 } //end doTrayStartUp
}

Screen shots after running this program,