A

Admin • 828.03K Points
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Q. Which interface must elements implement to be used in PriorityQueue?

  • (A) Comparable
  • (B) Runnable
  • (C) Serializable
  • (D) Iterable
  • Correct Answer - Option(A)
  • Views: 15
  • Filed under category Java
  • Hashtags: Java Queue
Explanation by: Admin
Elements must implement `Comparable` or be inserted with a custom Comparator.

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