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Thread: Problems with Inner Classes

  1. #1
    Member tyeeeee1's Avatar
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    Default Problems with Inner Classes

    Hey, I'm trying to change a non-final variable when a button is clicked in my program. The problem I'm running into is that, as far as I know, you can't use non-final variables within an actionlistener which means I'm unable to alter the variable which I want to alter when the button is clicked.

    I've looked over a few google pages but so-far I haven't found anything that would give me a way around this predicament. If anyone has a solution or even a suggestion as to how to solve this problem, thanks in advance!


  2. #2
    Super Moderator copeg's Avatar
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    Default Re: Problems with Inner Classes

    The variable must be declared final if it is only within the scope of the method creating the inner class. If it is say a class field, and this class contains a method that creates the inner class than this should be fine. I'd recommend posting an SSCCE if you are still having trouble.

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    tyeeeee1 (December 12th, 2012)

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    Super Moderator Norm's Avatar
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    Default Re: Problems with Inner Classes

    Can you post the code you are having problems with.
    An inner class should be able to access class variables.
    If you don't understand my answer, don't ignore it, ask a question.

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    tyeeeee1 (December 12th, 2012)

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    Member tyeeeee1's Avatar
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    Default Re: Problems with Inner Classes

    Edit: After a bit of messing around the problem has been solved thanks to both of your comments. Thanks!

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