Ok so I've made a game on Java and I want to create a jar file to run it so I can just have it on my flash drive and use it on any computer that has java installed.
However I'm having trouble with it. I've googled it and found instruction around that say to type something like this "jar -cf myfile.jar *.class" but where do I type that and is there an easier way to go about creating an executable jar file?

