A

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Q. What does `pollFirst()` return if the Deque is empty?

  • (A) Throws exception
  • (B) null
  • (C) 0
  • (D) false
  • Correct Answer - Option(B)
  • Views: 13
  • Filed under category Java
  • Hashtags: Java Deque
Explanation by: Admin
pollFirst() returns null if the Deque is empty.

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