Collections · interview question
Given a Deque, what is the result of calling addFirst() followed by pollLast()?
Multiple choiceMediumchapter-4-curatedpremiumcollectionsqueue-and-deque-basics
Answer and explanation
Correct answer
A. The element is inserted at the front and removed from the back.
Why
addFirst() inserts an element at the front of the Deque, and pollLast() removes an element from the back, thus the element is inserted at the front and removed from the back.
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