Hackforge Academy

Category: React • Beginner

Published on 22 Feb 2026

Explanation

#white-ExecutorService is a framework in Java #white-used to manage and control thread execution asynchronously.

Code Example

ExecutorService executor =
Executors.newFixedThreadPool(2);
executor.submit(() ->
System.out.println("Task executed"));
executor.shutdown();

Explanation

#white-ExecutorService helps in reusing #white-threads from a pool #white-instead of creating new threads manually.

Code Example

ExecutorService executor =
Executors.newSingleThreadExecutor();
executor.execute(() ->
System.out.println(Thread.currentThread().getName()));
executor.shutdown();

Explanation

#white-submit() method returns a Future object #white-which can be used to get the result of a #white-task.

Code Example

ExecutorService executor =
Executors.newSingleThreadExecutor();
Future<Integer> result = 
executor.submit(() -> 10 + 20);
System.out.println(result.get());
executor.shutdown();

Explanation

#white-shutdown() initiates an orderly shutdown #white-where previously submitted tasks are executed.

Code Example

executor.shutdown();

Explanation

#white-shutdownNow() attempts to stop all #white-actively executing tasks immediately.

Code Example

executor.shutdownNow();