A

Admin • 825.56K Points
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Q. Which implementation of Deque should not be used in multi-threaded environments without synchronization?

  • (A) ConcurrentLinkedDeque
  • (B) ArrayDeque
  • (C) LinkedBlockingDeque
  • (D) ConcurrentSkipListDeque
Explanation by: Admin
ArrayDeque is not thread-safe and should be externally synchronized in multi-threaded environments.

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