线程池

测试代码：

package com.kaka.thread;

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

public class TestThreadPool {
    public static void main(String[] args) {
        //1.创建线程池
        //newFixedThreadPool 参数为线程池大小
        ExecutorService service= Executors.newFixedThreadPool(10);
        //把线程丢进去,执行Runnable接口的实现类
        service.execute(new MyThread());
        service.execute(new MyThread());
        service.execute(new MyThread());
        service.execute(new MyThread());
        //关闭连接
        service.shutdown();
    }
}

//Runnable接口实现的线程
class MyThread implements Runnable{
    @Override
    public void run() {
            System.out.println(Thread.currentThread().getName());
    }
}

输出结果：

pool-1-thread-1
pool-1-thread-3
pool-1-thread-2
pool-1-thread-4

Process finished with exit code 0