通过线程池创建线程

package thread;

import java.util.concurrent.*;

/** * @auto dh * @create 2020-03-29-0:04 */class Th0009 implements Callable<Integer>{    private int sum=0;    public Integer call(){        for(int i=1;i<=100;i++){            sum+=i;        }        return sum;    }}class Th009 implements Runnable {    public  void run() {        for (int i = 0; i <= 100; i++) {            if (i % 2 == 0) {                System.out.println(Thread.currentThread().getName()+":"+i);            }

        }    }}

public class Thread009 {    public static void main(String[] args) {

        Th009 th=new Th009();        Th0009 t1=new Th0009();//        1、通过Executors工具类来创建线程池对象        ExecutorService executorService = Executors.newFixedThreadPool(12);//        2、execute()用来处理Runnable接口        executorService.execute(th);//        submit()用来处理Callable接口        FutureTask future= new FutureTask(t1);        Future future1= executorService.submit(future);

        try {//            通过FutureTask对象的get()方法获取线程的返回值            System.out.println("当前线程的返回值："+future.get());        } catch (InterruptedException e) {            e.printStackTrace();        } catch (ExecutionException e) {            e.printStackTrace();        }//        3、关闭线程池        executorService.shutdown();    }}

原文地址：https://www.cnblogs.com/kukai/p/12590465.html