「Java学习 + 面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识 准备 Java 面试，首选 JavaGuid

# 「Java学习 + 面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试，首选 JavaGuide！ > 强烈推荐！！！ 推荐你通过在线阅读网站进行阅读，体验更好，速度更快！地址：[javaguide.cn](https://javaguide.cn/)。 [<img src="https://oss.javaguide.cn/xingqiu/xingqiu.png" style="width:850px;margin: 0 auto" />](https://javaguide.cn/about-the-author/zhishixingqiu-two-years.html) <div align="center"> [](https://github.com/Snailclimb/JavaGuide) [](https://javaguide.cn/)    [GitHub](https://github.com/Snailclimb/JavaGuide) | [Gitee](https://gitee.com/SnailClimb/JavaGuide) </div> > - **面试专版**：准备 Java 面试的小伙伴可以考虑面试专版：**[《Java 面试指北 》](./docs/zhuanlan/java-mian-shi-zhi-bei.md)** (质量很高，专为面试打造，配合 JavaGuide 食用)。 > - **知识星球**：专属面试小册/一对一交流/简历修改/专属求职指南，欢迎加入 **[JavaGuide 知识星球](./about-the-author/zhishixingqiu-two-years.md)**（点击链接即可查看星球的详细介绍，一定确定自己真的需要再加入）。 > - **使用建议** ：有水平的面试官都是顺着项目经历挖掘技术问题。一定不要死记硬背技术八股文！详细的学习建议请参考：[JavaGuide 使用建议](./javaguide/use-suggestion.md)。 > - **求个Star**：如果觉得 JavaGuide 的内容对你有帮助的话，还请点个免费的 Star，这是对我最大的鼓励，感谢各位一起同行，共勉！Github 地址：[https://github.com/Snailclimb/JavaGuide](https://github.com/Snailclimb/JavaGuide) 。 > - **转载须知**：以下所有文章如非文首说明为转载皆为 JavaGuide 原创，转载请在文首注明出处。如发现恶意抄袭/搬运，会动用法律武器维护自己的权益。让我们一起维护一个良好的技术创作环境！ <div align="center"> <img src="https://oss.javaguide.cn/github/javaguide/gongzhonghaoxuanchuan.png" style="margin: 0 auto;" /> </div> <!-- #region home --> ## 项目相关 - [项目介绍](https://javaguide.cn/javaguide/intro.html) - [使用建议](https://javaguide.cn/javaguide/use-suggestion.html) - [贡献指南](https://javaguide.cn/javaguide/contribution-guideline.html) - [常见问题](https://javaguide.cn/javaguide/faq.html) ## Java ### 基础 **知识点/面试题总结** : (必看:+1: )： - [Java 基础常见知识点&面试题总结(上)](./docs/java/basis/java-basic-questions-01.md) - [Java 基础常见知识点&面试题总结(中)](./docs/java/basis/java-basic-questions-02.md) - [Java 基础常见知识点&面试题总结(下)](./docs/java/basis/java-basic-questions-03.md) **重要知识点详解**： - [为什么 Java 中只有值传递？](./docs/java/basis/why-there-only-value-passing-in-java.md) - [Java 序列化详解](./docs/java/basis/serialization.md) - [泛型&通配符详解](./docs/java/basis/generics-and-wildcards.md) - [Java 反射机制详解](./docs/java/basis/reflection.md) - [Java 代理模式详解](./docs/java/basis/proxy.md) - [BigDecimal 详解](./docs/java/basis/bigdecimal.md) - [Java 魔法类 Unsafe 详解](./docs/java/basis/unsafe.md) - [Java SPI 机制详解](./docs/java/basis/spi.md) - [Java 语法糖详解](./docs/java/basis/syntactic-sugar.md) ### 集合 **知识点/面试题总结**： - [Java 集合常见知识点&面试题总结(上)](./docs/java/collection/java-collection-questions-01.md) (必看 :+1:) - [Java 集合常见知识点&面试题总结(下)](./docs/java/collection/java-collection-questions-02.md) (必看 :+1:) - [Java 容器使用注意事项总结](./docs/java/collection/java-collection-precautions-for-use.md) **源码分析**： - [ArrayList 核心源码+扩容机制分析](./docs/java/collection/arraylist-source-code.md) - [LinkedList 核心源码分析](./docs/java/collection/linkedlist-source-code.md) - [HashMap 核心源码+底层数据结构分析](./docs/java/collection/hashmap-source-code.md) - [ConcurrentHashMap 核心源码+底层数据结构分析](./docs/java/collection/concurrent-hash-map-source-code.md) - [LinkedHashMap 核心源码分析](./docs/java/collection/linkedhashmap-source-code.md) - [CopyOnWriteArrayList 核心源码分析](./docs/java/collection/copyonwritearraylist-source-code.md) - [ArrayBlockingQueue 核心源码分析](./docs/java/collection/arrayblockingqueue-source-code.md) - [PriorityQueue 核心源码分析](./docs/java/collection/priorityqueue-source-code.md) - [DelayQueue 核心源码分析](./docs/java/collection/delayqueue-source-code.md) ### IO - [IO 基础知识总结](./docs/java/io/io-basis.md) - [IO 设计模式总结](./docs/java/io/io-design-patterns.md) - [IO 模型详解](./docs/java/io/io-model.md) - [NIO 核心知识总结](./docs/java/io/nio-basis.md) ### 并发 **知识点/面试题总结** : (必看 :+1:) - [Java 并发常见知识点&面试题总结（上）](./docs/java/concurrent/java-concurrent-questions-01.md) - [Java 并发常见知识点&面试题总结（中）](./docs/java/concurrent/java-concurrent-questions-02.md) - [Java 并发常见知识点&面试题总结（下）](./docs/java/concurrent/java-concurrent-questions-03.md) **重要知识点详解**： - [JMM（Java 内存模型）详解](./docs/java/concurrent/jmm.md) - **线程池**：[Java 线程池详解](./docs/java/concurrent/java-thread-pool-summary.md)、[Java 线程池最佳实践](./docs/java/concurrent/java-thread-pool-best-practices.md) - [ThreadLocal 详解](./docs/java/concurrent/threadlocal.md) - [Java 并发容器总结](./docs/java/concurrent/java-concurrent-collections.md) - [Atomic 原子类总结](./docs/java/concurrent/atomic-classes.md) - [AQS 详解](./docs/java/concurrent/aqs.md) - [CompletableFuture 详解](./docs/java/concurrent/completablefuture-intro.md) ### JVM (必看 :+1:) JVM 这部分内容主要参考 [JVM 虚拟机规范-Java8 ](https://docs.oracle.com/javase/specs/jvms/se8/html/index.html) 和周志明老师的[《深入理解 Java 虚拟机（第 3 版）》](https://book.douban.com/subject/34907497/) （强烈建议阅读多遍！）。 - **[Java 内存区域](./docs/java/jvm/memory-area.md)** - **[JVM 垃圾回收](./docs/java/jvm/jvm-garbage-collection.md)** - [类文件结构](./docs/java/jvm/class-file-structure.md) - **[类加载过程](./docs/java/jvm/class-loading-process.md)** - [类加载器](./docs/java/jvm/classloader.md) - [【待完成】最重要的 JVM 参数总结（翻译完善了一半）](./docs/java/jvm/jvm-parameters-intro.md) - [【加餐】大白话带你认识 JVM](./docs/java/jvm/jvm-intro.md) - [JDK 监控和故障处理工具](./docs/java/jvm/jdk-monitoring-and-troubleshooting-tools.md) ### 新特性 - **Java 8**：[Java 8 新特性总结（翻译）](./docs/java/new-features/java8-tutorial-translate.md)、[Java8 常用新特性总结](./docs/java/new-features/java8-common-new-features.md) - [Java 9 新特性概览](./docs/java/new-features/java9.md) - [Java 10 新特性概览](./docs/java/new-features/java10.md) - [Java 11 新特性概览](./docs/java/new-features/java11.md) - [Java 12 & 13 新特性概览](./docs/java/new-features/java12-13.md) - [Java 14 & 15 新特性概览](./docs/java/new-features/java14-15.md) - [Java 16 新特性概览](./docs/java/new-features/java16.md) - [Java 17 新特性概览](./docs/java/new-features/java17.md) - [Java 18 新特性概览](./docs/java/new-features/java18.md) - [Java 19 新特性概览](./docs/java/new-features/java19.md) - [Java 20 新特性概览](./docs/java/new-features/java20.md) ## 计算机�