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  1. #1
    Join Date
    Aug 2012
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    Exclamation Java JAR file execution

    Hi everyone,
    I have never actually worked with JAR files. This is my first time, and I am having trouble. After much trouble, I finally modified the manifest so it runs. On command prompt anyway. As in, using java -jar example.jar works perfectly fine, but when I double click it, nothing happens. Help?

  2. #2
    pbrockway2 is offline Moderator
    Join Date
    Feb 2009
    New Zealand
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    Default Re: Java JAR file execution

    What operating system and desktop environment are you using? And do other .jar files run when you double click them?

    Generally Windows assumes double click == run the .jar with the javaw.exe executable and sets things up to do that. (Although occasionally people find that they need to set the association - it's been discussed here before.)

    Linux makes no such assumption. Out-of-the-box, my K desktop regards the jar file as an archive (like a zip file) and a double click opens it for editing.

  3. #3
    Tolls is offline Moderator
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    Apr 2009
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    Default Re: Java JAR file execution

    And because windows tends to use the javaw version to run on a double click you won't see a console.
    So if it's a console app then you won't see anything.
    Please do not ask for code as refusal often offends.

    ** This space for rent **

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