What are some examples of asynchronous programming in Java?

What are some examples of asynchronous programming in Java?

Asynchronous programming in Java can be achieved using various techniques. For example, you can use the CompletableFuture class, which allows you to write non-blocking code. Would you like to see a specific example?

Yes, please provide an example using CompletableFuture.

Sure! Here's a simple example:

import java.util.concurrent.CompletableFuture;

public class AsyncExample {
    public static void main(String[] args) {
        CompletableFuture.supplyAsync(() -> {
            // Simulate a long-running task
            try { Thread.sleep(2000); } catch (InterruptedException e) { }
            return "Result from async task";
        }).thenAccept(result -> {
            System.out.println(result);
        });
    }
}

This code runs a task asynchronously and prints the result once it's done.

What other methods can I use for async programming?

In addition to CompletableFuture, you can use the ExecutorService for managing threads, or the reactive programming libraries like RxJava for more complex scenarios. Would you like to explore one of these options?

Yes, tell me more about RxJava.

RxJava is a library for composing asynchronous and event-based programs using observable sequences. It allows you to handle streams of data and events in a more functional style. Would you like to see a basic example of RxJava?