Example usage for java.util.concurrent Executors newFixedThreadPool

Introduction

In this page you can find the example usage for java.util.concurrent Executors newFixedThreadPool.

Prototype

public static ExecutorService newFixedThreadPool(int nThreads)

Source Link

Document

Creates a thread pool that reuses a fixed number of threads operating off a shared unbounded queue.

Usage

From source file:Main.java

public static void main(String[] args) {
    int NTHREADS = 25;
    ExecutorService exec = Executors.newFixedThreadPool(NTHREADS);
    exec.submit(new MailConsumer());
    exec.submit(new MailProducer());
    System.out.println("inside main");
}

From source file:MainClass.java

public static void main(String[] args) {
    ExecutorService application = Executors.newFixedThreadPool(2);

    Buffer sharedLocation = new UnsynchronizedBuffer();

    System.out.println("Action\t\tValue\tProduced\tConsumed");
    System.out.println("------\t\t-----\t--------\t--------\n");

    try {//from  w ww .j  a  v  a2 s. com
        application.execute(new Producer(sharedLocation));
        application.execute(new Consumer(sharedLocation));
    } catch (Exception exception) {
        exception.printStackTrace();
    }

    application.shutdown(); // terminate application when threads end
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    ExecutorService es = Executors.newFixedThreadPool(3);
    Future<Double> f = es.submit(new Avg());
    Future<Integer> f2 = es.submit(new Factorial());

    System.out.println(f.get());/* w  ww.j  ava 2  s. c om*/
    System.out.println(f2.get());
    es.shutdown();
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    ExecutorService es = Executors.newFixedThreadPool(3);
    Future<Double> f = es.submit(new Task1());
    Future<Integer> f2 = es.submit(new Task2());

    System.out.println(f.get());//w  w  w  .ja  v a  2  s . c o m
    System.out.println(f2.get());
    es.shutdown();
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    ExecutorService service = Executors.newFixedThreadPool(4);
    BufferedReader buffer = new BufferedReader(new InputStreamReader(System.in));
    String line;// www .  ja  va 2  s.  c o  m
    while ((line = buffer.readLine()) != null) {
        service.execute(new Worker(line));
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    ExecutorService service = Executors.newFixedThreadPool(5);
    List<Future<java.lang.String>> futureList = service
            .invokeAll(Arrays.asList(new Task1<String>(), new Task2<String>()));

    System.out.println(futureList.get(1).get());
    System.out.println(futureList.get(0).get());
}

From source file:Main.java

public static void main(String[] args) throws InterruptedException {
    ExecutorService executor = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors() + 1);
    List<Particle> allTheParticles = new ArrayList<>();
    for (int i = 0; i < 20; i++) {
        allTheParticles.add(new Particle(i, allTheParticles));
    }/*  w  ww  . j  a v a2 s.  co  m*/
    while (true) {
        executor.invokeAll(allTheParticles);
        executor.invokeAll(allTheParticles);
    }
}

From source file:Main.java

public static void main(String[] args) throws InterruptedException {
    Main task = new Main();
    int threads = Runtime.getRuntime().availableProcessors();
    ExecutorService pool = Executors.newFixedThreadPool(threads);
    for (int i = 0; i < threads; i++) {
        pool.submit(task);/*from   w w  w.  j  ava  2  s. c o  m*/
    }
    pool.awaitTermination(120, TimeUnit.SECONDS);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    System.out.println("Thread pool size = " + MAX_THREADS);
    ExecutorService executor = Executors.newFixedThreadPool(MAX_THREADS);
    Future previousFuture = null;
    for (int i = 0; i < MAX_THREADS; i++) {
        JobRunnable job = new JobRunnable(i, previousFuture);
        previousFuture = executor.submit(job);
    }//  w  ww . jav a 2  s . com
    executor.shutdown();
    executor.awaitTermination(Long.MAX_VALUE, TimeUnit.MILLISECONDS);
    System.out.println("Program done.");
}

From source file:Main.java

public static void main(String[] args) {
    CyclicBarrier barrier = new CyclicBarrier(2);
    Receiver receiver = new Receiver(barrier);
    Sender sender = new Sender(barrier);
    ExecutorService executor = Executors.newFixedThreadPool(2);
    executor.submit(receiver);/*w  w  w .j  a  v  a 2s  .  c o  m*/
    executor.submit(sender);
}