Question

I made an application in Java (using the Eclipse IDE) and i refer in the code to images stored in a source folder called “source” and it worked fine in the IDE. When I extracted the jar to an runnable jar, there are no errors but the picture doesn’t show up, or if it does it just shows whatever’s behind it. I opened up the .jar in WinRar and it appears the pictures are all thrown in with the class files. How can I fix this?

Image i = Toolkit.getDefaultToolkit().getImage("sources/SystemTrayOne.png");

Answer 1

You’re trying to get a file which doesn’t exist in a Jar. Instead get the URL via the Class#getResource(...)

e.g.,

URL imgUrl = getClass().getResource(....); // resource name here
Image i = Toolkit.getDefaultToolkit().getImage(imgUrl);

or better

URL imgUrl = getClass().getResource(....); // resource name here
Image i = ImageIO.read(imgUrl);