Java Multithreading : ExecutorService

Executor Service is an interface in Java to create a pool of threads or worker threads to execute a task asynchronously. The instance of ExecutorService is created and with the help of its instance, a pool of threads are created. The thread pool can have single or multiple threads depending upon the requirement.

Creation of thread pool :

A thread pool can be created with the help of ExecutorService in the below-mentioned way.

• Creation of Single thread by using newSingleThreadExecutor().
• Creation of multiple threads by using newFixedThreadPool(n) where n is the required count of the worker threads.
• Creation of catched thread pool by using newCachedThreadPool().

       

Syntax is mentioned below :

ExecutorService execute=Executors.newSingleThreadExecutor();        /* For single thread creation */ ExecutorService execute=Executors.newFixedThreadPool();       /* For a fixed count of worker threads */ ExecutorService execute=Executors.newCachedThreadPool();        /* For catched thread pool */

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                    Submit() and execute() are the methods of ExecutorService in Java. One ...