Double-click on your JAR file yet again. If it won't open up this time, the file you are wanting to open up isn't executable and thus can not be "operate" in the normal feeling. You use the command: "java -jar ". You can even run these documents by clicking on https://gregoryhqxc85285.bluxeblog.com/60274024/the-ultimate-handmade-gift-guide-from-jar-candles-to-sugar-body-scrubs