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Editorial Team
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Asked: 2026-05-14T07:00:11+00:00

This may seem a very silly question. Consider this: I have a simple Boolean

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This may seem a very silly question.
Consider this:

I have a simple Boolean object with a getter and a setter. Now both of the methods are called from a lot of threads very frequently.

  1. Do I need to have a synchronization for this boolean?
  2. Also are Boolean assignments atomic operations?

[UPDATE]:
I know about Atomic Boolean already. I already have a lot of varied solutions, But I was specifically looking for answers and justification of answers for the above 2 question.

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1 Answer

  1. Editorial Team

    No, Boolean access is NOT atomic (on the level of machine code), although it does take “only 1 operation in Java”.

    Therefore, yes, you do need synchronization for Boolean.

    Please see slides 4-6 of this presentation for code examples.

    On a related note, you should not synchronize on a Boolean

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