Async Programming in Java: Part I Let's discuss asynchronous programming in Java and various ways to achieve it, starting with Thread, Runnable, and Callable. by Join the DZone community and get the full member experience.Join For Free As a backend engineer, we face situations to process the data asynchronously. Today let's see how it's done in java and various way to do it. Starting from Thread, Runnable, Callable T , Future T (and its extended ScheduledFuture T ), CompletableFuture T , and of course, ExecutorService and ForkJoinPool. We will see all of them, but one by one. Thread The very basic yet so powerful component of Java concurrency is