Question
When should a Java developer choose ArrayDeque as a Queue deliberately?
- Choose ArrayDeque as a Queue mainly when you want to postpone validation and fix problems manually later.
- Choose ArrayDeque as a Queue whenever you want the code to look more advanced, even if the design gets less clear.
- Choose ArrayDeque as a Queue only to avoid modeling domain rules explicitly in Java code.
- Use ArrayDeque for breadth-first search, scheduling buffers, and other single-threaded FIFO workloads.
Hint
Think about the production scenario where the choice genuinely improves the code.
Answer and rationale
Correct answer: D. Use ArrayDeque for breadth-first search, scheduling buffers, and other single-threaded FIFO workloads.
Use ArrayDeque for breadth-first search, scheduling buffers, and other single-threaded FIFO workloads. Interviewers often ask this to see whether you can connect the concept to real design decisions.
Track: Java