import java.util.concurrent.*;

/**

* <类的详细说明：线程池的使用>

*

* @Author: Huanghai

* @Version: 2017/1/7

**/

public class ThreadPoolTest {

public static void main(String[] args) {

ExecutorService executor = Executors.newCachedThreadPool();

for(int i=0;i<20;i++){

MyTask myTask = new MyTask(i);

executor.execute(myTask);

// System.out.println("线程池中线程数目："+executor.getPoolSize()+"，队列中等待执行的任务数目："+

// executor.getQueue().size()+"，已执行玩别的任务数目："+executor.getCompletedTaskCount());

}

executor.shutdown();

}

}

class MyTask implements Runnable {

private int taskNum;

public MyTask(int num) {

this.taskNum = num;

}

@Override

public void run() {

System.out.println("正在执行task "+taskNum);

try {

Thread.currentThread().sleep(4000);

} catch (InterruptedException e) {

e.printStackTrace();

}

System.out.println("task "+taskNum+"执行完毕");

}

}