Java Interview Questions · interview question

Which practice avoids a common mistake with Circular Queue and Ring Buffer?

Multiple choiceMediumjava-interview-2026interviewjavapitfall

Prefer the version of Circular Queue and Ring Buffer that makes behavior less predictable as long as the code compiles.Do not let head and tail equality mean both empty and full without an extra size or reserved-slot rule.Ignore the Circular Queue and Ring Buffer issue and rely on team discipline instead of APIs or contracts.Silence the Circular Queue and Ring Buffer problem by using raw types, broad catches, or shared mutable state.

Answer and explanation

Correct answer

B. Do not let head and tail equality mean both empty and full without an extra size or reserved-slot rule.

Why

Do not let head and tail equality mean both empty and full without an extra size or reserved-slot rule. This is a common failure mode in real Java code and a frequent interview follow-up.

Test yourself on Java Interview Questions

A free test with instant, explained results. No account needed.

Start free test

All Java Interview Questions questions →

Which practice avoids a common mistake with Circular Queue and Ring Buffer?

Correct answer

Why

More Java Interview Questions questions