测试JUC安全类型的集合

package edu.wtbu;

import java.util.concurrent.CopyOnWriteArrayList;

//测试JUC安全类型的集合
public class Demo09 {
    public static void main(String[] args) {
        CopyOnWriteArrayList<String> list = new CopyOnWriteArrayList<>();
        for (int i = 0; i < 1000; i++) {
            new Thread(()->{
                list.add(Thread.currentThread().getName());
            }).start();
        }
        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
        System.out.println(list.size());//1000
    }
}