Java Future vs CompletableFuture: What's the Difference?

What is the difference between Future and CompletableFuture in Java?

Future is a simple way to handle asynchronous tasks, while CompletableFuture offers more flexibility and features.

Can you give me an example of how to use CompletableFuture?

Sure! You can create a CompletableFuture like this: CompletableFuture.supplyAsync(() -> { return "Hello"; });

What are the advantages of using CompletableFuture over Future?

CompletableFuture allows for non-blocking operations, chaining, and better error handling compared to Future.

Are there any performance differences between the two?

Yes, CompletableFuture can be more efficient in handling multiple asynchronous tasks due to its non-blocking nature.