How would you change your programs Icon instead of the default java icon

Question

This shows the icon when I launch through eclipse, but when I export it to a Runnable Jar It shows the default Java icon, I do not want to use the Resource way of doing it since it doesn't work in the IDE even.

public static void main(String args[]) {
    Game component = new Game();
    ImageIcon img = new ImageIcon("res/game.png");

    JFrame frame = new JFrame();
    frame.add(component);
    frame.setTitle(NAME);
    frame.setIconImage(img.getImage());
    frame.setResizable(false);
    frame.setLocationRelativeTo(null);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.pack();
    frame.setVisible(true);

    component.start();
}

check this out: http://stackoverflow.com/questions/17815033/how-to-change-java-icon-in-a-jframe — Akash Rajbanshi, May 09 '15 at 07:30
As I said I don't want to use the Resource method I want to use this method as it is the better way — BlueFoot, May 09 '15 at 07:39
Then, try this: http://stackoverflow.com/questions/1614772/how-to-change-jframe-icon — Akash Rajbanshi, May 09 '15 at 07:42
Thats the one I wrote this off of, and It will only work If I have the res/game.png in the same directory as my game.jar — BlueFoot, May 09 '15 at 07:46
oh i see. So, where is your res/game.png placed then? Inside `src` folder? — Akash Rajbanshi, May 09 '15 at 07:51

score 1 · Answer 1 · answered May 09 '15 at 08:20

1

please use the following code

Image image = ImageIO.read(getClass().getResourceAsStream("/res/icon.png"));
setIconImage(new ImageIcon(image).getImage());

and put your icon file in res folder of src folder. But it'll display the icon of frame when you execute the jar file. Working fine for me.

answered May 09 '15 at 08:20

ELITE

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The code looks like try { Image image = ImageIO.read(Game.class.getResourceAsStream("/res/icon.png")); frame.setIconImage(new ImageIcon(image).getImage()); } catch (IOException e) { e.printStackTrace(); } But I get the following error Exception in thread "main" java.lang.IllegalArgumentException: input == null! at javax.imageio.ImageIO.read(Unknown Source) at package.Game.main(Game.java:51) – BlueFoot May 09 '15 at 20:57
Problem was the path that I was using – BlueFoot May 10 '15 at 18:43

score 0 · Accepted Answer · edited May 23 '17 at 11:58

0

Try this following code to set the iconImage to the frame:

frame.setIconImage(new ImageIcon("res/game.png").getImage());

Even in this oracle doc you can find this same approach.

Edit: Have you tried this code. It might be helpful:

frame.setIconImage(new ImageIO.read(new File("res/game.png")));

Check out this explation too.

edited May 23 '17 at 11:58

Community

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answered May 09 '15 at 07:58

Akash Rajbanshi

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frame.setIconImage(new ImageIcon("res/game.png").getImage()); Works in the IDE, but once I export and run through .jar, doesn't work – BlueFoot May 09 '15 at 08:10
oh ok..then we might have a problem :) – Akash Rajbanshi May 09 '15 at 08:16

score 0 · Answer 3 · answered May 09 '15 at 21:48

0

The problem was that I was using the wrong run as file, a stupid mistake but thats what I get for not having my Workspace clean.

I'd like to thank everyone who tried to help.

answered May 09 '15 at 21:48

BlueFoot

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How would you change your programs Icon instead of the default java icon

3 Answers3

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