How do I change the default application icon in Java?

Bill_the_Lizard_1288 0
Viewed 142293

I'm using NetBeans, trying to change the familiar Java coffee cup icon to a png file that I have saved in a resources directory in the jar file. I've found many different web pages that claim they have a solution, but so far none of them work.

Here's what I have at the moment (leaving out the try-catch block):

URL url = new URL("com/xyz/resources/camera.png");
Toolkit kit = Toolkit.getDefaultToolkit();
Image img = kit.createImage(url);
getFrame().setIconImage(img);

The class that contains this code is in the com.xyz package, if that makes any difference. That class also extends JFrame. This code is throwing a MalformedUrlException on the first line.

Anyone have a solution that works?

icons java
10 Answers
java.net.URL url = ClassLoader.getSystemResource("com/xyz/resources/camera.png");

May or may not require a '/' at the front of the path.

JeeBee_178320

Or place the image in a location relative to a class and you don't need all that package/path info in the string itself.

com.xyz.SomeClassInThisPackage.class.getResource( "resources/camera.png" );

That way if you move the class to a different package, you dont have to find all the strings, you just move the class and its resources directory.

John_Gardner_136870

You can try this one, it works just fine : 

`   ImageIcon icon = new ImageIcon(".//Ressources//User_50.png");
    this.setIconImage(icon.getImage());`
user_109700740

inside frame constructor

try{    
       setIconImage(ImageIO.read(new File("./images/icon.png")));   
   }
catch (Exception ex){
       //do something
   }
user_63601790
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