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Thread: scope of variable understanding problem?

  1. #1
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    Default scope of variable understanding problem?


    i know scope of a variable declare in a function remain with in the function. but i want to know Is the objects that create in a function remain in the memory after the function finish its execution.

  2. #2
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    Default Re: scope of variable understanding problem?

    Yes, for awhile. The only way memory is cleared up is by a process called garbage collection. When a java program is running, the virtual machine will occasionally automatically run its garbage collection process to get rid of anything in memory which will no longer be used. To my understanding, java really only runs it when it starts to get low on memory.

    Based on your question, I suspect you are attempting to see if you can find that object in memory after the function has finished. There is probably some way of doing it, but it is not something you should do; mainly because you don't know if the object will still be in memory when you look. The garbage collection might have ran and gotten rid of it in the mean time. There isn't really a nice way of checking.

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