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Java集合框架提供了各种数据结构来满足不同的需求。在其中，ArrayList和LinkedList是两种常见的列表实现。本文将深入探讨这两种数据结构的特点、区别以及在不同场景下的应用。 1. ArrayList简介 ...

第二季：4我们知道ArrayList是线程不安全，请编码写一个不安全的案例并给出解决方案。【Java面试题】

前言2022 10/4 22:03路漫漫其修远兮,吾将上下而求索本文是根据尚硅谷学习所做笔记仅供学习交流使用，转载注明出处推荐尚硅谷Java大厂面试题第2季，面试必刷，跳槽大厂神器第二季大佬总结第二季：4我们知道ArrayList是线程不安全，请编码写一个不安全的案例并给出解决方案说明本文目录前是相...

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基于ArrayList增删改查实现的java商品管理系统

系统简介某超市开业，为了实现仓库商品标准管理化，需要一套操作简单的商品管理系统。主要业务有：添加商品、删除商品、修改商品属性、查看某一种商品信息、查看所有商品信息。细节提示需要管理的商品有以下几种属性：商品编号、商品名、商品价格以及商品库存。商品编号是唯一的，每种商品的编号都不能一样。业务细节添加功...

数据结构---ArrayList（Java实现）

一. 了解List为什么要先介绍List呢？因为ArrayList是一个类，它实现了List接口，要想学好ArrayList就必须先了解List从数据结构的角度看，List就是一个线性表，可以保存n个具有相同类型元素的有限序列，在该序列中，可以进行增删查改以及变量等操作List为一个接口࿰...

ArrayList集合储存对象并排序（Java）

ArrayList集合储存对象并排序（Java）存储一个学生类并输出(年龄相同时比较姓名)：Student:public class Student {private int ege; private String name; public Student(int ege, String name)...

ArrayList源码解读—Java8版本（下）

6.9 clear()方法 /** * Removes all of the elements from this list. The list will * be empty after this call returns. 从列表中删除所有元素。该调用返回后，列表将为空。 */ public v...

ArrayList源码解读—Java8版本（中）

五、构造方法ArrayList提供了三种构造方法：ArrayList(int initialCapacity)：构造一个指定容量为capacity的空ArrayList。ArrayList()：构造一个初始容量为 10 的空列表。ArrayList(Collection<? extends E...

ArrayList源码解读—Java8版本（上）

一、ArrayList简介ArrayList顶部有一段很长的注释，大概的介绍了ArrayList。1.1 原文/** * Resizable-array implementation of the <tt>List</tt> interface. Implements * a...

记录一次执行ArrayList的add方法异常细节复盘｜ Java Debug 笔记

前言看到这个问题的时候，一眼看去，这么简单的问题，为何会问。其实，转眼一想，是的，这个还是很具有迷惑性的问题。对于初学者，来说，这块确实容易迷失。很多人不理解。那么，我们就来看看这个问题，对它进行一次深入的解剖！问题复现定义一个初始化大小为10...

[Arrays,asList,ArrayList,程序员,String]Java程序员们最常犯的3个集合错误

　　1.将数组转化为列表　　将数组转化为一个列表时，程序员们经常这样做：　　List list=Arrays.asList(arr);　　Arrays.asList() 会返回一个ArrayList对象，ArrayList类是Arrays的一个私有静态类，而不是java.util.ArrayList...

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