Explain Java ConcurrentHashMap and queues

Q: Explain Java ConcurrentHashMap and queues

This is a Software Engineering Fundamentals interview question from ByteDance for Software Engineer roles. View the full question and solution on PracHub.

Q: How do I approach Software Engineering Fundamentals interview questions?

Software Engineering Fundamentals questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master software engineering fundamentals interviews.

Question

An interviewer asks you conceptual questions about Java's concurrency primitives.

Explain in detail:

How Java's ConcurrentHashMap is implemented internally and how it achieves thread-safe access and high concurrency. Compare it with HashMap and Collections.synchronizedMap .
How Java's concurrent queue implementations (for example ConcurrentLinkedQueue , LinkedBlockingQueue , and ArrayBlockingQueue ) work internally and how they provide thread safety and, when relevant, blocking behavior.

Discuss the underlying data structures, locking or lock-free techniques, and typical use cases for each.

Explain Java ConcurrentHashMap and queues

Solution

Comments (0)