常见线程池

import java.util.concurrent.ExecutorService;
 4 import java.util.concurrent.Executors;
 5 
 6 public class TestThreadPoolExecutor {
 7     public static void main(String[] args) {
 8         //创建一个单线程化的线程池
 9         ExecutorService singleThreadExecutor = Executors.newSingleThreadExecutor();
10         for (int i = 0; i < 10; i++) {
11             final int index = i;
12             singleThreadExecutor.execute(new Runnable() {
13                 public void run() {
14                     try {
15                         //结果依次输出，相当于顺序执行各个任务
16                         System.out.println(Thread.currentThread().getName()+"正在被执行,打印的值是:"+index);
17                         Thread.sleep(1000);
18                     } catch (InterruptedException e) {
19                         e.printStackTrace();
20                     }
21                 }
22             });
23         }
24     }
25 }

//创建一个单线程化的线程池  Executors.newSingleThreadExecutor();

 //创建一个可缓存线程池  Executors.newCachedThreadPool();

//创建一个可重用固定个数的线程池 Executors.newFixedThreadPool(3);

 //创建一个定长线程池，支持定时及周期性任务执行——延迟执行 Executors.newScheduledThreadPool(5);