What is executor framework in Java with example?

A framework having a bunch of components that are used for managing worker threads efficiently is referred to as Executor Framework. The Executor API reduces the execution of the task from the actual task to be executed through the Executors. The executor framework is an implementation of the Producer-Consumer pattern.

How do I create an executor framework in Java?

To use the Executor Framework we need to create one such thread pool and submit the task to it for execution. It is the job of the Executor Framework to schedule and execute the submitted tasks and return the results from the thread pool.

How do you use executors in Java?

Example of assigning a task to ExecutorService using execute() method

1. public class ExecutorServiceExample {
2. public static void main(String[] args) {
3. ExecutorService executorService = Executors.newSingleThreadExecutor();
4. executorService.execute(new Runnable() {
5. @Override.
6. public void run() {

How does executor framework work?

Executor framework executes and processes the tasks asynchronously, One can not assume whether all the submitted threads have completed its tasks or not. So, stopping of the executor service threads plays an important role while stopping or restarting any application for graceful stops.

How many types of Executors are there in Java?

There are five ways to execute the tasks asyncronously by using the ExecutorService interface provided Java 6.

What are the advantages of executor framework?

Below are some benefits:

• Executor service manage thread in asynchronous way.
• Use Future callable to get the return result after thread completion.
• Manage allocation of work to free thread and resale completed work from thread for assigning new work automatically.
• fork – join framework for parallel processing.

What is executor class?

The newCachedThreadPool() method of Executors class Creates a thread pool that creates new threads as needed but will reuse previously constructed threads when they are available.