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Concurrency basics · interview question

Which method is used to wait for all CompletableFutures in a list to complete?

Multiple choiceEasychapter-15-curatedpremiumconcurrencycompletablefuture
Choose one answer
Answer and explanation

Correct answer

C. CompletableFuture.allOf()

Why

CompletableFuture.allOf() takes an array of CompletableFutures and returns a new CompletableFuture that completes when all the given futures complete, allowing you to wait for multiple asynchronous operations.

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