R

Ram Sharma • 3.40K Points
Extraordinary

Q. Which collection allows null elements and is synchronized?

  • (A) ArrayList
  • (B) Vector
  • (C) HashSet
  • (D) TreeSet
  • Correct Answer - Option(B)
  • Views: 5
  • Filed under category Java
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Explanation by: Ram Sharma
`Vector` is synchronized and allows null elements.

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