Java Threading · interview question
What does volatile actually guarantee in Java?
Multiple choiceEasychapter-15-curatedpremiumjava-threadingvolatile-keyword
Answer and explanation
Correct answer
D. Visibility of the latest write across threads, but not atomic compound actions
Why
volatile ensures threads observe the latest value, but it does not make multi-step operations like read-modify-write atomic. You still need stronger coordination for compound invariants.
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