<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[Hellw0rld的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/Hellw0rld</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; Hellw0rld]]></copyright><item><title><![CDATA[Trae使用日志（挑刺版）]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/162958817</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/162958817</guid><author>Hellw0rld</author><pubDate>Fri, 17 Jul 2026 10:32:13 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[【随笔】我可以相信一只完美预测足球赛的章鱼吗？]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/148710546</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/148710546</guid><author>Hellw0rld</author><pubDate>Mon, 23 Jun 2025 15:19:50 +0800</pubDate><description><![CDATA[章鱼连续20次猜中比赛结果确实是一个统计上极小概率的事件，这本身对我们来说是一个非常有力的证据，📌 类比章鱼预测：它预测对了20次，于是大众赋予它“先知”地位，而忽视它可能只是个叙事工具。如果每场比赛的结果是一个独立事件，章鱼的预测就像抛硬币，不因过去成功而影响未来的准确性。这就像在一百万只章鱼里，有一只是凭运气连续猜中20次，我们自然会“高估它的能力”。有人会误以为“连续猜对20次”之后，“下一次应该错了”，这是错误的统计直觉。📌 对应章鱼预测： 我们只看到了预测对的章鱼，而没看到预测错的999只。]]></description><category></category></item><item><title><![CDATA[【回炉重造】企业流行的Java版本]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/141815353</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/141815353</guid><author>Hellw0rld</author><pubDate>Mon, 02 Sep 2024 11:24:31 +0800</pubDate><description><![CDATA[Java 9 引入的模块系统（Project Jigsaw）不仅改变了 Java 平台的代码组织方式，还对 JVM 的类加载机制进行了深远的改革。通过模块系统，Java 开发者可以更好地管理代码的依赖和封装，增强应用程序的可维护性、安全性和性能。模块系统虽然引入了新的复杂性，但它为大型应用程序的开发提供了更清晰的结构和更强大的工具。这些版本虽然不是 LTS 版本，但它们引入了许多重要的新功能，逐步提升了 Java 语言的表达能力和性能。这些新特性也为开发者在日常编程中提供了更多的便利和效率。]]></description><category></category></item><item><title><![CDATA[【回炉重造】Openshift]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/140951186</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/140951186</guid><author>Hellw0rld</author><pubDate>Sat, 24 Aug 2024 12:39:01 +0800</pubDate><description><![CDATA[OpenShift 是一种基于 Kubernetes 的开源容器化平台，由 Red Hat 公司开发和维护。它提供了一套完整的容器应用开发、部署和管理解决方案，使开发者可以更轻松地构建、部署和扩展云原生应用。OpenShift 基于 Docker 和 Kubernetes 技术，支持容器化应用的构建、打包和部署。开发者可以使用 Docker 将应用程序打包成容器镜像，并通过 Kubernetes 进行管理和调度。]]></description><category></category></item><item><title><![CDATA[【实践】Java开发常用工具类或中间件]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/119450740</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/119450740</guid><author>Hellw0rld</author><pubDate>Fri, 16 Aug 2024 10:28:42 +0800</pubDate><description><![CDATA[技术开发类
数据校验类

org.apache.commons.lang3.ObjectUtils;
org.apache.commons.lang3.StringUtils;
org.springframework.util.CollectionUtils;

数据库类：

mybatis-plus

日志打印类：

import lombok.extern.slf4j.Slf4j;



]]></description><category></category></item><item><title><![CDATA[【回炉重造】Java中类的初始化]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/109251201</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/109251201</guid><author>Hellw0rld</author><pubDate>Fri, 16 Aug 2024 10:21:33 +0800</pubDate><description><![CDATA[Java类的初始化]]></description><category></category></item><item><title><![CDATA[【回炉重造】Java反射机制]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/108964720</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/108964720</guid><author>Hellw0rld</author><pubDate>Fri, 16 Aug 2024 10:06:48 +0800</pubDate><description><![CDATA[Java反射机制和实践]]></description><category></category></item><item><title><![CDATA[【回炉重造】Docker]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/139078041</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/139078041</guid><author>Hellw0rld</author><pubDate>Tue, 06 Aug 2024 11:24:40 +0800</pubDate><description><![CDATA[Docker 是一个开源的应用容器引擎，让开发者可以打包他们的应用以及依赖包到一个可移植的镜像中，然后发布到任何流行的 Linux或Windows 机器上，也可以实现虚拟化。容器是完全使用沙箱机制，相互之间不会有任何接口。]]></description><category></category></item><item><title><![CDATA[【回炉重造】JPA(Java/Jakarta Persistence API)]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/138087149</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/138087149</guid><author>Hellw0rld</author><pubDate>Mon, 22 Apr 2024 18:28:36 +0800</pubDate><description><![CDATA[JPA（Java/Jakarta Persistence API）是 Java 的持久化标准，用于将 Java 对象持久化到数据库中。🐇]]></description><category></category></item><item><title><![CDATA[【贴士】Git tips‍]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/135817784</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/135817784</guid><author>Hellw0rld</author><pubDate>Fri, 22 Mar 2024 17:56:29 +0800</pubDate><description><![CDATA[常用的git命令和用法指引]]></description><category></category></item><item><title><![CDATA[【数据结构】CopyOnWriteArrayList源码分析]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/108917353</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/108917353</guid><author>Hellw0rld</author><pubDate>Sun, 08 Oct 2023 17:30:13 +0800</pubDate><description><![CDATA[参考链接
https://blog.youkuaiyun.com/u010002184/article/details/90452918
JDK文档中英对照
英文：

public class CopyOnWriteArrayList
extends Object
implements List, RandomAccess, Cloneable, Serializable
.
A thread-safe variant of ArrayList in which all mutative operations (add]]></description><category></category></item><item><title><![CDATA[【数据结构】TreeMap源码分析]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/108842458</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/108842458</guid><author>Hellw0rld</author><pubDate>Sun, 08 Oct 2023 17:29:59 +0800</pubDate><description><![CDATA[TreeMap的基本操作 containsKey、get、put 和 remove 的时间复杂度是 log(n)。平衡二叉树：它是一棵空树或它的左右两个子树的高度差的绝对值不超过1，并且左右两个子树都是一棵平衡二叉树。继承的类和接口都是老熟人了，就是这个NavigableMap有点陌生，我们就来康康。底层数据结构：红黑树（是一种平衡二叉树，也是一种二叉搜索树）查找、插入、删除复杂度均为log(n)]]></description><category></category></item><item><title><![CDATA[【回炉重造】Redis知识总结]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/132868778</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/132868778</guid><author>Hellw0rld</author><pubDate>Sat, 16 Sep 2023 00:26:50 +0800</pubDate><description><![CDATA[推荐阅读。]]></description><category></category></item><item><title><![CDATA[【随笔】SpringMVC]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/132571750</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/132571750</guid><author>Hellw0rld</author><pubDate>Thu, 14 Sep 2023 09:03:19 +0800</pubDate><description><![CDATA[SpringMVC]]></description><category></category></item><item><title><![CDATA[【数据结构】HashSet源码分析]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/108844354</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/108844354</guid><author>Hellw0rld</author><pubDate>Mon, 31 Jul 2023 17:23:46 +0800</pubDate><description><![CDATA[HashSet源码分析]]></description><category></category></item><item><title><![CDATA[【字典】Maven的xml文件标签]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/130225613</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/130225613</guid><author>Hellw0rld</author><pubDate>Tue, 25 Jul 2023 14:07:55 +0800</pubDate><description><![CDATA[Maven的xml文件标签大全如下
&lt;project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd "&gt;
 
    &lt;!]]></description><category></category></item><item><title><![CDATA[【架构】设计模式的知识学习]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/110551461</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/110551461</guid><author>Hellw0rld</author><pubDate>Thu, 03 Dec 2020 17:16:53 +0800</pubDate><description><![CDATA[http://c.biancheng.net/view/1317.html

]]></description><category></category></item><item><title><![CDATA[【回炉重造】Java虚拟机知识总结]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/109387515</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/109387515</guid><author>Hellw0rld</author><pubDate>Tue, 24 Nov 2020 00:25:17 +0800</pubDate><description><![CDATA[Java虚拟机基础知识]]></description><category></category></item><item><title><![CDATA[【回炉重造】Java的线程基础知识总结]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/108624487</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/108624487</guid><author>Hellw0rld</author><pubDate>Sun, 22 Nov 2020 22:25:43 +0800</pubDate><description><![CDATA[Java线程基础和源码知识汇总]]></description><category></category></item><item><title><![CDATA[【回炉重造】Java方法重载中返回值的问题]]></title><link>https://blog.youkuaiyun.com/Hellw0rld/article/details/109588473</link><guid>https://blog.youkuaiyun.com/Hellw0rld/article/details/109588473</guid><author>Hellw0rld</author><pubDate>Mon, 09 Nov 2020 23:06:44 +0800</pubDate><description><![CDATA[不能通过设置不同的返回值来实现方法重载，这样的方法不一定会编译通过，但Class文件中可以共存。
IDEA工具,JDK8测试：

参考自《深入理解Java虚拟机》(第3版)，如图




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