Engineering Interviews · interview question
Which Java feature ensures that a variable is visible across threads immediately after being updated?
Multiple choiceMediumchapter-20-curatedpremiumengineering-interviewsjvm-trivia
Answer and explanation
Correct answer
A. Volatile keyword
Why
The volatile keyword in Java ensures that a variable's updates are immediately visible to all threads. This prevents threads from caching variables locally, thus maintaining a consistent shared state across multiple threads.
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