从学Java开始, 就一直大脑记着 arrayList 底层是数组 ,查询快, 插入慢, 有移动的动作.linkedList 底层链表, 插入快 查询慢,今天写了例子跑了跑, 果然. public class ListTest { public static void main(String[] args)throws Exception { Thread thread = new Thread(()->{ addArraylist(); }); Thread thread2 = new Th…