ceshi代码片dfgdgd

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/cpongo3/article/details/82981385

for (int i = 0; i < 20; i++) {            try {                System.out.println("线程" + thnum + " NO." + i);                Thread.sleep(1000);            } catch (InterruptedException e) {                e.printStackTrace();            }        }        time2 = System.currentTimeMillis();        time3 = time2 - time;        System.out.println(time3);    }

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作者：Adlered 
来源：CSDN 
原文：https://blog.csdn.net/YiLiXiaoHuiChen/article/details/82950786?utm_source=copy 
版权声明：本文为博主原创文章，转载请附上博文链接！

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class cachethreadpool {
    public static void main (String[] args) {
        ExecutorService es = Executors.newFixedThreadPool(3);
        int setup = 1;
        for (int i = 0; i < setup; i++) { //for循环开始
            final int index = i;
            setup++;
            es.execute(new Runnable() {
                @Override
                public void run() {
                    try {
                        System.out.println(index);
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            });
        } //for循环结束
    }
}