We use Java CompletableFuture to run tasks asynchronously using supplyAsync().
The task will run asynchronously in the ForkJoinPool.commonPool().
Using this approach we don't need to manage Threads manually.

// Using Lambda Expression
CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> {
try {
TimeUnit.SECONDS.sleep(1);
} catch (InterruptedException e) {
throw new IllegalStateException(e);
}
return "Result of the asynchronous computation";
});