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Java Tutorial: Java Threads (Thread pool in java | Java thread pool | Java thread pool tutorial_V1) |
Java Tutorial: Java Threads (Thread pool in java | Java thread pool | Java thread pool tutorial_V1) |
Java Tutorial: Java Threads (Thread pool in java | Java thread pool | Java thread pool tutorial_V1) |
import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; public class ThreadPoolDemo { public static void main(String[] args) { ExecutorService executorService = Executors.newFixedThreadPool(3); for (int i = 0; i < 10; i++) { WorkerThread workerThread = new WorkerThread("Hello " + i); executorService.execute(workerThread); } executorService.shutdown(); while (!executorService.isTerminated()) { } System.out.println("Finished all threads"); } }WorkerThread.java
class WorkerThread implements Runnable { private String message; public WorkerThread(String message) { this.message = message; } public void run() { System.out.println(Thread.currentThread().getName() + " (Start) message = " + message); processmessage(); System.out.println(Thread.currentThread().getName() + " (End)"); } private void processmessage() { try { Thread.sleep(2000); } catch (InterruptedException e) { e.printStackTrace(); } } }Output
pool-1-thread-1 (Start) message = Hello 0 pool-1-thread-2 (Start) message = Hello 1 pool-1-thread-3 (Start) message = Hello 2 pool-1-thread-2 (End) pool-1-thread-2 (Start) message = Hello 3 pool-1-thread-1 (End) pool-1-thread-1 (Start) message = Hello 4 pool-1-thread-3 (End) pool-1-thread-3 (Start) message = Hello 5 pool-1-thread-2 (End) pool-1-thread-2 (Start) message = Hello 6 pool-1-thread-1 (End) pool-1-thread-1 (Start) message = Hello 7 pool-1-thread-3 (End) pool-1-thread-3 (Start) message = Hello 8 pool-1-thread-2 (End) pool-1-thread-2 (Start) message = Hello 9 pool-1-thread-1 (End) pool-1-thread-3 (End) pool-1-thread-2 (End) Finished all threadsRefer:
https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/Executors.html
https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ExecutorService.html
https://sites.google.com/site/ramj2eev1/home/javabasics/ThreadDemo_ThreadPool_App.zip?attredirects=0&d=11
Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/ThreadDemo_ThreadPool_App
Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/0fa116261fbf2fe2bc94946e6ef3f543aabbf896/BasicJava/ThreadDemo_ThreadPool_App/?at=master
See also:
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