When you installed JRE, the .jar extension got associated to the java binary and got a default icon. This is what you are seeing and you can't override it programmatically in the code of your application.

Sep 14, 2016 · After clean and build jar, the jar file icon still isn't changed (still the jar default icon) but when you execute the jar file the icon in title bar and taskbar will be your custom icon. You can change the jar file icon by creating shortcuts and change icon for that shortcut. Best resolution for shortcut icon is 512 x 512 pixel .ico

Only way to do so (at least for Windows) is to use wrapper like launch4j and then set icon path. If you already have wrapped exe with no or wrong icon, you can use Resource Hacker and then follow turtorials on how to change icon.

Aug 9, 2015 · I'm trying to find what dll or folder the jar icon for Java is located in. it looks like I'm referring to the complete icon you see in the picture, complete with the paper backing.

Learn how to change the default JAR icon in Java applications with detailed steps and code examples.

Learn how to change the icon of an executable JAR file in Java with detailed steps and code examples.

Learn the steps to set a custom icon for your executable JAR files in Java applications. Follow our expert guide for detailed instructions and tips.

Jan 28, 2024 · By default, executable .jar files use the Java icon. To change the icon in OS X, copy the icon you want to use (using Commmand + C), right-click on the .jar file, pull down to Get Info, click on the icon in the upper-left corner of the dialog box, and paste the icon (using ⌘ + V).

May 14, 2012 · I'm trying to change the default java icon that appears in taskbar everytime I run my .jar program. I managed to change it with frame.setIconImage (img); but this makes icon way too small, I want it to be as big as other programs icons and have a high quality. Any way I …

Say that you have created your JAR, and created a batch file that performs certain useful tasks such as setting environment variables, and now you want to make it pretty like a real, professional type application. To do this, create an icon, create a shortcut to the .bat file, and then change the icon used by the shortcut.