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I am having a error for my GUI. Trying to set title bar icon then be included in a Runnable JAR.

BufferedImage image = null;
try {
    image = ImageIO.read(getClass().getClassLoader().getResource("resources/icon.gif"));
} 
catch (IOException e) {
    e.printStackTrace();
}

frame.setIconImage(image);

Here is the error I am getting:

Exception in thread "main" java.lang.IllegalArgumentException: input == null!
    at javax.imageio.ImageIO.read(Unknown Source)
    at GUI.<init>(GUI.java:39)
    at GUI.main(GUI.java:351)

The image is in the correct directory which "resources" folder is the root of the project file

Scripting API: Resources.Load, Load Image from Resource folder. Let's prepare a simple scene in unity for loading images at runtime. I have added RawImage game object in� IDR_SAMPLE_IMAGE IMAGE "turtle.jpg" The resource will be added to the application's resources when the application is built. Load the resource from the application. HRESULT hr = S_OK; // WIC interface pointers. IWICStream *pIWICStream = NULL; IWICBitmapDecoder *pIDecoder = NULL; IWICBitmapFrameDecode *pIDecoderFrame = NULL; // Resource management.

There's a much easier way to load and set an image as a frame icon:

frame.setIconImage(
    new ImageIcon(getClass().getResource("/resources/icon.gif")).getImage());

And thats all :)! You don't even have to use a try-catch block because ImageIcon does not throw any declared exceptions. And due to getClass().getResource(), it works both from file system and from a jar depending how you run your application.

If you need to check whether the image is available, you can check if the URL returned by getResource() is null:

URL url = getClass().getResource("/resources/icon.gif");
if (url == null)
    System.out.println( "Could not find image!" );
else
    frame.setIconImage(new ImageIcon(url).getImage());

Load Image at Runtime in Unity, Your app can load image resource files containing images tailored for display scale factor, theme, high contrast, and other runtime contexts. Posted on October 18, 2011 To load a file (be it a text file or image) in Java is fairly easy, and most of the time all you need if the path to the resource. However, the filename approach does not work so well when your data is inside a JAR file.

The image files must be in the directory resources/ in your JAR, as shown in How to Use Icons and this example for the directory named images/.

Load images and assets tailored for scale, theme, high contrast, and , The image will be compiled into your project's assembly. Load Image Resource. Be sure to include the following namespaces in your project: using System.IO� Vector format Image. Images are all based on the loseless vector format SVG to optimize the image quality and file size. In addition to SVG format, we also provide other formats including PNG, GIF and CSS for you to download, depending on the resource type you are working on.

Embedded Image Resources : C# 411, Xcode 7 Beta 4 SKTexture: Error loading image resource. Hi guys. I am having problems with this line of code: let background = SKSpriteNode(imageNamed:� How to load image from resource folder and set that image to source image of UI Image? unity3d unity5. share | improve this question | follow | edited Sep 25 '17 at 7:11.

Xcode 7 Beta 4 SKTexture: Error loading image resource, Are you saying that it's impossible to load images from the Resources in the Forms project? No , but we strongly recommend you place the image into the native project . And if you want, i can post the code that accessing image from Forms project .

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Comments
  • I think you need a / in front of resources, check that please
  • @Adel Thanks for that. I am receiving another error. Exception in thread "main" java.lang.IllegalArgumentException: input == null! Same error with change
  • And also check the name case, paths inside Jars are case sensitive.
  • Use jar tf GUI.jar to see what's actually there.
  • @JakubZaverka I remove getClassLoader(). same error. maybe I need to change the directory of image since I removed that.
  • @trashgod : Thankx for the edit, but Better it will be, if you add your edit on top of mine, since the Java Doc explained that in a much better way than, what I did in my answer, it seems like :-)
  • @nIcEcOw: Honestly, I think your ASCII art is more legible. :-)
  • @nIcEcOw This answer was considered worthy of mention in the info. page for embedded-resource. :)
  • @AndrewThompson : Happy to know, that my answer, is providing the knowledge :-) Thankyou. It's a wonderful feeling, to know, that the answer is liked by many :-) Will try to provide more answers with the same valuable inputs, as I did with this answer. Thankyou again and KEEP SMILING :-)
  • wrong... it throws null pointer exception if the image wasn't there
  • @LasithaLakmal What's wrong? Nobody said otherwise. If you need to handle "missing" images, the answer tells to check if Class.getResource() returns null.