Top Java Communities and Learning Platforms You Should Bookmark

Domestic Java Communities

Site: 并发编程网 ( http://ifeve.com/) – Focuses on Java concurrency, NIO, JVM, and framework topics. Rating: ★★★

Site: 开发者头条 ( https://toutiao.io/c/java) – Daily developer newsletter with curated domestic and international tech news. Rating: ★★

Site: InfoQ ( https://www.infoq.cn/) – Provides news, articles, videos, and interviews; Chinese edition offers deep technical insights. Rating: ★★★

Site: how2j ( https://how2j.cn/) – Full‑stack Java tutorials from basics to advanced topics, beginner‑friendly. Rating: ★★★★★

Site: 内存溢出 ( http://outofmemory.cn/) – Comprehensive portal covering front‑end, operations, Python, Java, AI, and architecture. Rating: ★★★

Site: 推酷 ( https://www.tuicool.com/) – Personalized reading community aggregating technology, entrepreneurship, product, and operations content. Rating: ★★

Site: ITeye ( https://www.iteye.com/magazines/130) – Curated Java programming resources, now part of CSDN. Rating: ★★★★

Site: 解道 Jdon ( https://www.jdon.com/) – Architecture‑focused articles and trend analysis, 20‑year history. Rating: ★★★★

Site: 菜鸟教程 ( https://www.runoob.com/java/java-environment-setup.html) – Free, beginner‑oriented tutorials covering many programming languages. Rating: ★★★★★

Site: 编程字典 ( https://codingdict.com/) – Collection of tutorials, source code, and learning documents. Rating: ★★★★★

Site: W3School ( https://www.w3school.com.cn/) – Front‑end and web development tutorials, similar to 菜鸟教程. Rating: ★★★★★

Site: GitBook ( https://gitbook.cn/) – Hosts many technical articles, some behind a paywall. Rating: ★★★

Site: 码农教程 ( http://www.manongjc.com/java/java_quick_guide.html) – Extensive tutorials for Java, PHP, JavaScript, C/C++, HTML, CSS, etc. Rating: ★★★★

Site: 最代码 ( http://www.zuidaima.com/) – Source‑code sharing platform with thousands of high‑quality Java, jQuery, Bootstrap snippets. Rating: ★★★

Site: LeetCode ( https://leetcode-cn.com/problemset/all/) – Essential algorithm practice platform for developers. Rating: ★★★★★

Site: 码客 ( https://oomake.com/topic/java) – Java programming discussion community. Rating: ★★★

Site: 良许 Linux 教程网 ( www.lxlinux.net) – Dedicated site for Linux technical content. Rating: ★★★★★

Foreign Java Communities

Site: IBM Developer ( https://developer.ibm.com/) – Official IBM developer community with international expert interaction. Rating: ★★★★

Site: JAXenter ( https://jaxenter.com/) – Shares advanced technology news and conducts surveys. Rating: ★★★★

Site: ProgramCreek ( https://www.programcreek.com/) – Ranked among the top 100 Java blogs worldwide. Rating: ★★★★★

Site: InfoWorld ( https://www.infoworld.com/category/java/) – Latest Java news, technologies, and feature articles. Rating: ★★★★

Site: Stack Overflow ( https://stackoverflow.com/) – Largest Q&A site for programming with millions of high‑quality questions and answers. Rating: ★★★★★

General Technical Communities

Site: 开源中国 ( https://www.oschina.net/) – Technology blog community. Rating: ★★★

Site: 思否社区 ( https://segmentfault.com/) – Emerging tech community with a back‑end focus. Rating: ★★★

Site: CSDN ( https://www.csdn.net/) – Large developer platform; notable for abundant copy‑paste content. Rating: ★★

Site: ChinaUnix ( http://bbs.chinaunix.net/forum-26-1.html) – China’s biggest Linux/Unix technical forum. Rating: ★★★

Site: 牛客网 ( https://www.nowcoder.com/) – Provides interview preparation and career‑related resources. Rating: ★★★★★

Site: 掘金 ( https://juejin.cn/) – Newer community with a strong front‑end development emphasis. Rating: ★★★