Java · Junior · Theory

What is a race condition, and what tools does Java give you to protect against it?

~4 min by voice

How to approach it

The interviewer wants to see whether you understand where multithreading problems come from: non-atomic operations and invisible changes. It also matters whether you can tell the protection tools apart: synchronized gives mutual exclusion and visibility, volatile gives only visibility, and the Atomic classes give atomic operations without locks.

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Topics

multithreading memory model

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Answer by voice

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.

Best with headphones · ~4 min