Executing .Jar not working

[thriii]

Can someone explain to me why my Jar files wont work? When I double click them nothing at all happens the icon just gets big and goes away. I know there is a way to execute the Jar file using terminal but I don't understand that either since I don't know how to use terminal Is there something that I have to download/install to get the double clicking to work? If not how do I execute through terminal?

 

[thriii]

can any1 plz help with this

 

[wrldwzrd89]

The first thing you should always do if something like this happens with a JAR file is to check the Console for relevant error messages. That will give you some clues as to why the file won't launch.

If you want to launch the file from the Terminal, the command you need is this:

java -jar (drag the JAR file to the Terminal window)

Where it says (drag the JAR file to the Terminal window), do exactly that. Make sure there's a space between java and -jar, as well as between -jar and the name of the file you dragged in.

 

[imperialboy3]

I don't get it

it said invalid flag -jar... please help!

 

[MisterMe]

it said invalid flag -jar... please help!

You need a valid .jar file.