Question
When should a Java developer choose ArrayDeque as a Stack deliberately?
- Use ArrayDeque when you need push, pop, and peek behavior without thread-safe legacy APIs.
- Choose ArrayDeque as a Stack mainly when you want to postpone validation and fix problems manually later.
- Choose ArrayDeque as a Stack whenever you want the code to look more advanced, even if the design gets less clear.
- Choose ArrayDeque as a Stack only to avoid modeling domain rules explicitly in Java code.
Hint
Think about the production scenario where the choice genuinely improves the code.
Answer and rationale
Correct answer: A. Use ArrayDeque when you need push, pop, and peek behavior without thread-safe legacy APIs.
Use ArrayDeque when you need push, pop, and peek behavior without thread-safe legacy APIs. Interviewers often ask this to see whether you can connect the concept to real design decisions.
Track: Java