I can't open or run my .jar file. I just installed java, but I tried to open the .jar with other programs first, so the double-click defaults to something else and I can't change it back. java -jar

Jan 20, 2022 · 0 To open a jar file in Windows, you must have the Java Runtime Environment installed. Alternatively, you can use decompression software, such as an unzip utility, to view the files in the jar …

.jar files won't open on my PC. I've tried reinstalling Java and messed with the environment variables.

Sep 17, 2012 · I'm new to java and eclipse. I even saw this type of query on this website. But I have applied all those methods and it was also helpful. But when I try to open eclipse, it is not opening: …

Dec 16, 2009 · Up until recently, I was able to launch/open JNLP files in Firefox using Java web start. Don't know what happened all of a sudden JNLP files stopped launching, a splash screen appears …

Dec 30, 2022 · I've found a similar one to it here Class has been compiled by a more recent version of the Java Environment, so I'm looking for a way to upgrade/downgrade the version of Java, but I can't …

Sep 22, 2022 · I checked if java was installed using my cmd: Command prompt showing java successfully installed I tried double-clicking it did not work. So I right-clicked it to open with other …

Jan 22, 2018 · Executable jar not running? Windows 10 Asked 7 years, 11 months ago Modified 5 years, 4 months ago Viewed 33k times

If I set .jar files to open with java.exe it opens a command window for a split second, and says: Error: Could not find or load main class C:User\Dominic\Desktop\PrismaPuzzleTimer0.6.jar If I set .jar files …

May 18, 2017 · I had installed Java to work with Android Studio. Java works fine on Android Studio but when I try to use Java run command on my computer, it opens and closes immediately. How do I run …