JAVA线程池的创建

/**
 * 创建不同类型的线程池 Executors
 *
 * @author
 */
public class ThreadPoolTest01 {
 
    public static void main(String[] args) {
        //ExecutorService threadPool = Executors.newFixedThreadPool(3); // 创建一个固定大小的线程池，5个线程
//        ExecutorService threadPool = Executors.newCachedThreadPool();    //创建一个可变的线程池，线程个数自己控制
        ExecutorService threadPool = Executors.newSingleThreadExecutor();    //线程池中只有一个线程，死掉后会有新的线程代替
        for (int i = 1; i <= 10; i++) {    //向线程池添加10个任务
            final int taskId = i;
            threadPool.execute(new Runnable() {
                @Override
                public void run() {
                    for (int i = 0; i < 3; i++) {
                        try {
                            Thread.sleep(30);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                        System.out.println(Thread.currentThread().getName()
                                + " loop of " + i + " task of " + taskId);
                    }
                }
            });
        }
 
        threadPool.shutdown();    //线程池中的线程都没有任务后关闭
//        threadPool.shutdownNow();    //立刻关闭
    }
 
}