Networking · interview question
Why does calling join on a CompletableFuture change runtime behavior?
Multiple choiceMediumchapter-11-curatedpremiumnetworkingasynchronous-http
Answer and explanation
Correct answer
B. It blocks until the future completes and returns the result.
Why
Calling join on a CompletableFuture blocks the current thread until the future completes, then returns the result or throws an exception if the computation failed, making it synchronous in nature.
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