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Concurrency basics · interview question

Why is AtomicInteger preferred over synchronized blocks for counters in high-concurrency environments?

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Answer and explanation

Correct answer

B. AtomicInteger uses lock-free operations which reduce overhead.

Why

AtomicInteger uses lock-free Compare-And-Swap (CAS) operations, which minimize the overhead associated with thread contention, making it more efficient than synchronized blocks in high-concurrency scenarios.

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