ExecutorService.submit(Task) vs CompletableFuture.supplyAsync(Task, Executor)

Question

To run some stuff in parallel or asynchronously I can use either an ExecutorService: Future submit(Runnable task, T result); or the CompletableFu

Answer 1

This clarified for me the difference between future an completable future a bit more: Difference between Future and Promise

CompletableFuture is more like a promise.