Java Concurrency Questions et reponses d'entretien
Question 21. Explain the concept of the CopyOnWriteArrayList class.
CopyOnWriteArrayList is a thread-safe variant of ArrayList in which all mutative operations (add, set, etc.) are implemented by making a fresh copy of the underlying array.
Question 22. What is the purpose of the Phaser class in Java?
Phaser is a synchronization barrier that allows a set of threads to wait for each other to reach a common phase before proceeding.
Question 23. Explain the concept of the ReadWriteLock interface.
ReadWriteLock provides a pair of associated locks for read and write access, allowing multiple threads to read the data concurrently or a single thread to write it exclusively.
Question 24. What is the purpose of the ScheduledExecutorService interface?
ScheduledExecutorService is an extension of ExecutorService that supports delayed and periodic task execution.
Question 25. Explain the concept of the BlockingQueue interface.
BlockingQueue is a queue that supports operations that wait for the queue to become non-empty when retrieving an element and wait for space to become available when storing an element.
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