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Java: What deeper point about ArrayDeque as a Stack should a senior Java developer mention?

Difficulty:

Hard

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

What deeper point about ArrayDeque as a Stack should a senior Java developer mention?

  1. At senior level, the right answer is that ArrayDeque as a Stack exists mostly for historical syntax reasons.
  2. At senior level, the JVM removes the tradeoffs around ArrayDeque as a Stack, so design choices barely matter.
  3. Interviewers value candidates who know the API choice matters because the right structure improves both semantics and runtime behavior.
  4. At senior level, any approach to ArrayDeque as a Stack is equally correct if it compiles and passes a small test.

Hint

Look beyond syntax and explain the runtime, API, or design consequence.

Answer and rationale

Correct answer: C. Interviewers value candidates who know the API choice matters because the right structure improves both semantics and runtime behavior.

Interviewers value candidates who know the API choice matters because the right structure improves both semantics and runtime behavior. This is the kind of tradeoff-aware answer senior interviews usually expect.

Track: Java