Collections · interview question
Which Java collection class is best suited for implementing a queue that supports both FIFO and LIFO operations?
Multiple choiceEasychapter-4-curatedpremiumcollectionsqueue-and-deque-basics
Answer and explanation
Correct answer
D. ArrayDeque
Why
ArrayDeque is designed to support both queue (FIFO) and stack (LIFO) operations efficiently. It provides operations to add and remove elements from both ends of the queue.
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