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Concurrency basics · interview question

In a high-traffic e-commerce application, how can you optimize the completion of multiple independent checkout tasks using CompletableFuture?

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

Correct answer

D. Use CompletableFuture.allOf()

Why

CompletableFuture.allOf() allows you to wait for all independent CompletableFutures to complete efficiently. It is optimal for executing multiple independent tasks in parallel in a high-traffic scenario.

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