~4 min by voice
This checks whether the candidate understands the difference between a value and a reference in Java and knows the practical pitfalls of autoboxing: an NPE on unboxing, comparing with == and the Integer cache, overhead.
The interviewer will ask this question and listen. Think out loud and ask for a hint if you need one. When you're done, pause or tap “That's my answer”. In about a minute, your score and the points you covered show up here.
Sign in to answerBest with headphones · ~4 min