Various thread pool implementations, pool

List several thread pool implementations:

[1] executorservice

Http://www.gznc.edu.cn/yxsz/jjglxy/book/Java_api/java/util/concurrent/ExecutorService.html

[2] scheduledexecutorservice

Http://www.gznc.edu.cn/yxsz/jjglxy/book/Java_api/java/util/concurrent/ScheduledExecutorService.html

[3] threadpoolexecutor

Http://www.gznc.edu.cn/yxsz/jjglxy/book/Java_api/java/util/concurrent/ThreadPoolExecutor.html

[4] scheduledthreadpoolexecutor

Http://www.gznc.edu.cn/yxsz/jjglxy/book/Java_api/java/util/concurrent/ScheduledThreadPoolExecutor.html

 

 

public static void main(String[] args) {

// Create a thread pool that can reuse a set of fixed threads and run these threads in a shared unbounded queue mode.

    ExecutorService pool1 = Executors.newFixedThreadPool(3);

// Create a thread pool where new threads can be created as needed, but they will be reused when previously constructed threads are available

    ExecutorService pool2 = Executors.newCachedThreadPool();

// Create an executor that uses a single worker thread and runs this thread in the unbounded queue mode.

    ExecutorService pool3 = Executors.newSingleThreadExecutor();

// Create a thread pool, which can be scheduled to run commands after a given delay or regularly run

    ScheduledExecutorService pool4 = Executors.newScheduledThreadPool(3);

// Create a single-threaded execution program, which can be scheduled to run commands after a given delay or regularly run

    ScheduledExecutorService pool5 = Executors.newSingleThreadScheduledExecutor();

// Create a scalable Thread Pool

    ThreadPoolExecutor pool6 = new ThreadPoolExecutor(3, 5, 3,

            TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(3), new ThreadPoolExecutor.DiscardOldestPolicy());

// Create a scalable thread pool that can be scheduled to run commands after a given delay or regularly run

    ScheduledThreadPoolExecutor pool7 = new ScheduledThreadPoolExecutor(5);

}