Try this exercise. Is this statement true or false?

CompletableFuture is a class introduced in Java 8 to support asynchronous and concurrent programming. It represents a computation that may or may not have completed yet and provides a way to chain dependent computations, handle exceptions, and compose multiple CompletableFuture instances.

Completable Futures are restricted to only representing a single value or nothing at all. If you need to represent more than one value, you can use the java.util.concurrent.CompletionStage interface or the CompletableFuture class with a generic type representing a tuple of values.

CompletableFuture is immutable, meaning once it is completed or cancelled, its result or cancellation cannot be changed.