Icon for the JFrame

Question

Hi,
I just wanted to start with WebStart. So I tried a very simple piece of code. A little Swing Window with a panel in it etc.I want the window to have its own Icon in the upper left corner under windows. First I wrote as I would do normaly for my java applications. There is the following in the main method of my own JFrame Class called Tis (public class Tis extends JFrame):
public static void main(String[] arg) {                    // Hauptmethode
     Image programmIcon = Toolkit.getDefaultToolkit().getImage("tis.gif"); // Icon
           Tis myTis = new Tis();                    // Instanz von Tis erzeugen
     myTis.setIconImage(programmIcon);               // Icon zuweisen
     myTis.show();                         // Fenster anzeigen
}Now I learned that I need A classLoader to access Files.So I changed the code to:
public static void main(String[] arg) {                    // Hauptmethode
           Tis myTis = new Tis();                    // Instanz von Tis erzeugen
         ClassLoader cl = myTis.getClass().getClassLoader();     // Aktuellen Classloader holen
     Image programmIcon  = new ImageIcon(cl.getResource("tis.gif"));   // Icon erzeugen
     myTis.setIconImage(programmIcon);               // Icon zuweisen
     myTis.show();                         // Fenster anzeigen
}The Problem is, that the classLoader will only load to a ImageIcon what is a Swing Class. But The JFrame's setIconImage() is inherited from the basis AWT Class and will not accept the ImageIcon class. I read through the docs and faqs, but found no answer to this. unfortunatly I cant find the source-code for the demos that sun is providing on this website. So at this moment I cant help myself any further.
Someone an idea ?
Thanks
- Frankie

Answer 1

And remember to use the exact case!
Example:
Under Windows you would get away first with
getImage("tis.gif")in case the file is stored on the disk and later in the jar file
as "Tis.gif" and you execute your programm via java foo.class.
When you later execute from a jar (using java -jar foo.jar) and/or via Web Start you would suddenly miss that resource, as the jar loader is case sensitive!
Regards,
Marc