Easiest route is probably upgrading or re-installing the Java Runtime Environment (JRE). Or this: Open the Windows Explorer, from the Tools select 'Folder Options...' Click the File Types tab, …

Dec 4, 2016 · Follow this answer, if you've got a jar file, and you need to run it See troubleshooting sections for hints to solve most common errors Introduction There are several …

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

Nov 26, 2008 · Well, a jar-file is just a zip-file, so if you unzip it (with your favorite unzipping utility), you get all the files inside. If you want to look inside the class files to see the methods, you'll …

The .class files are generally the main part of a jar file. It's impossible to view the source code (.java file) unless you decompile the executable file (.class file) by some tools. Take Eclipse for …

Oct 9, 2020 · So I'm pretty much new to Java and in one of my university courses, my prof gave us the following instruction: Download the attached .jar file. Create a java project in eclipse. It …

Sep 22, 2022 · Use your prompt CD into the directory with the jar then execute java -jar Mars.jar ...any more troubles , open file properties tab with right click on the jar and check permissions …

Aug 28, 2019 · quoting How to open a jar file page Once you have your jre installed and running on wiirndows Right-click the file and select Open With. In the Open With window, click the …

Feb 13, 2012 · By default, Windows opens .jar files with javaw.exe (thanks Johnydep), the version of java that runs without a terminal. In my case, running javaw -jar myJar.jar didn't work either.

Running a .jar file in a command line works fine, but i am not able to run any .jar file by double clicking on my Windows 7 (64). It seems nothing happens after the double click.