线程池的使用方法

线程池

主要是为了提升性能,线程重复利用。每个线程都创建十分消耗性能。线程池就像共享单车。

package Thread;

import java.util.concurrent.Executor;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class TestThreadPool {
    public static void main(String[] args) {
        ExecutorService service = Executors.newFixedThreadPool (10);//第一步
        service.execute (new MyThread ());//第二部
        service.execute (new MyThread ());
        service.execute (new MyThread ());
        service.execute (new MyThread ());
        service.submit (new MyThread ());//有返回值,但是我也不知道怎么用?
        service.shutdown ();//关闭线程池
    }
}
class MyThread implements Runnable{
    @Override
    public void run() {
        System.out.println (Thread.currentThread ().getName ());
    }
}
posted @ 2020-04-17 22:06  li33的博客  阅读(182)  评论(0编辑  收藏  举报