U

Uday Singh • 7.23K Points
Tutor III 

Q. Which of those is synchronized and does not allow null elements?

  • (A) Vector
  • (B) CopyOnWriteArraySet
  • (C) CopyOnWriteArrayList
  • (D) ConcurrentSkipListSet
  • Correct Answer - Option(D)
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  • Filed under category JAVA

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