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Java基础知识第三讲：深入集合类（常用的集合类有哪些？比如List如何排序？集合的安全？）

1、collections框架（包括列表list，queue队列，set集合，stack栈，map键值对）提供排序，查找，反转，替换，复制，取最小，最大元素等功能从下面的集合框架图可以看到，Java集合框架主要包括两...

java集合类史上最细讲解 - List篇

1.集合框架体系集合框架被设计成要满足以下几个目标。该框架必须是高性能的。基本集合（动态数组，链表，树，哈希表）的实现也必须是高效的。该框架允许不同类型的集合，以类似的方式工作，具有高度的互操作性。对一个集合的扩展和适应必须是简单的。为此，整个集合框架就围绕一组标准接口而设计。你可以直...

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2. list🦖2.1 List 集合概述和特点🐶List 集合概述：有序集合（也称为序列），用户可以精确控制列表中的每一个元素插入位置，用户可以通过整数索引访问元素，并搜素列表中的元素与Set集合不同，列表通常允许重复元素List集合特点：有序...

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java基础学习_集合类01_对象数组、集合Collection接口、集合List接口_day15总结

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Java 集合类Collection、List

Collection接口： 1.集合可以理解为一个动态的对象数组，不同的是集合中的对象内容可以任意扩充。也就是说在集合当中的操作比较方便，容易添加或者删除...

java中集合类中Collection接口中的List接口的常用方法熟悉

1：集合类，在java语言中的java.util包提供了一些集合类，这些集合类又被称作容器。 2：区别集合类和数组。（1）数组的长度是固定的，集合的长度是可变的。（2）数组是用来存放基本数据类型的，集合是用来存放对象的引用。 3 : 常用的集合有List集合，Set集合，Map集合。其中List集合...

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