A

Admin • 825.56K Points
Coach

Q. Which method is used to insert an element at the front in a blocking deque?

  • (A) putFirst()
  • (B) addFirst()
  • (C) offerFirst()
  • (D) insertFirst()
Explanation by: Admin
In LinkedBlockingDeque, `putFirst()` waits if necessary for space to become available.

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