How can I use CompletableFuture chaining in Java?

How can I use CompletableFuture chaining in Java?

You can use CompletableFuture chaining to execute asynchronous tasks in a sequence. It allows you to run tasks one after another, where each task can depend on the result of the previous one.

Can you give me a code example of CompletableFuture chaining?

Sure! Here's a simple example:

CompletableFuture.supplyAsync(() -> {
    return "Hello";
}).thenApply(result -> {
    return result + " World!";
}).thenAccept(finalResult -> {
    System.out.println(finalResult);
});

What happens if one of the tasks fails?

If a task fails, you can handle the exception using the handle or exceptionally methods. This allows you to define fallback behavior.

Can I combine multiple CompletableFutures?

Yes, you can combine multiple CompletableFutures using methods like allOf or anyOf, which allow you to wait for all or any of the futures to complete.