R

Ram Sharma • 3.40K Points
Extraordinary

Q. Which collection throws ConcurrentModificationException if modified during iteration?

  • (A) CopyOnWriteArrayList
  • (B) HashSet
  • (C) ConcurrentHashMap
  • (D) ArrayBlockingQueue
  • Correct Answer - Option(B)
  • Views: 11
  • Filed under category Java
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Explanation by: Ram Sharma
`HashSet` is fail-fast and throws `ConcurrentModificationException` if structurally modified during iteration.

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