René's URL Explorer Experiment


Title: Java ArrayList | 菜鸟教程

Description: Java ArrayList Java 集合框架 ArrayList 类是一个可以动态修改的数组，与普通数组的区别就是它是没有固定大小的限制，我们可以添加或删除元素。 ArrayList 继承了 AbstractList ，并实现了 List 接口。 ArrayList 类位于 java.util 包中，使用前需要引入它，语法格式如下： import java.util.ArrayList; // 引入 ArrayList 类..

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