itwanger/tobebetterjavaer

★ 16,950JavaAudience · developerComplexity · 1/5Setup · easy

Mindmap

mindmap
  root((tobebetterjavaer))
    Content areas
      Java basics
      JVM internals
      Concurrency
      Microservices
    Tech covered
      Spring MyBatis
      MySQL Redis
      Design patterns
    Interview prep
      Question collections
      Roadmaps
      LeetCode practice
    Audience
      Chinese learners
      Job seekers
      Backend beginners

mindmap root((tobebetterjavaer)) Content areas Java basics JVM internals Concurrency Microservices Tech covered Spring MyBatis MySQL Redis Design patterns Interview prep Question collections Roadmaps LeetCode practice Audience Chinese learners Job seekers Backend beginners

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Things people build with this

USE CASE 1

Study Java basics, concurrency, and JVM concepts through beginner-friendly articles in Chinese

USE CASE 2

Prepare for Chinese tech company interviews using the curated interview question sections

USE CASE 3

Follow a structured learning roadmap for Java, MySQL, Redis, or other backend technologies

USE CASE 4

Download the PDF for offline study of the full curriculum without internet access

Tech stack

JavaSpringMyBatisMySQLRedis

Getting it running

Difficulty · easy Time to first run · 5min

Content is written in Chinese, a translation tool is needed for non-Chinese readers.

License type not specified in the explanation.

In plain English

This repository, called toBeBetterJavaer ("to become a better Java programmer"), is a large, free Chinese-language learning guide for people who want to learn Java, the programming language used heavily in enterprise software, Android, and big systems. It is written by a Chinese tech blogger known as 沉默王二 (or 二哥, "second brother") and is meant to be approachable, friendly, and beginner-readable. The repo describes itself as a guide that is easy to understand and a little bit humorous. The content is a large collection of articles grouped by topic. It covers Java basics (syntax, arrays, strings, object-oriented programming), Java concurrency, the Java Virtual Machine (JVM), enterprise topics like Spring and MyBatis, supporting tools like MySQL and Redis, plus operating systems, computer networks, distributed systems, microservices, and design patterns. There are separate learning roadmaps for Java, MySQL, Redis, C, C++, Python, Go, frontend, algorithms, big data, Android.NET, and Linux. A block called 面渣逆袭 ("interview comeback") collects classic Chinese-style technical interview questions for people preparing for software jobs. The articles live in this repo as Markdown files under docs/. They are also published on a companion website (javabetter.cn) for smoother reading, and there is a paid Chinese knowledge-circle community offering resume polishing, mock projects (including AI/agent and RAG examples), and LeetCode practice. The README is in Chinese, and a PDF version is offered for offline study. Reach for this repo if you read Chinese and are learning Java from scratch, preparing for a Chinese tech interview, or want curated links into related backend topics.

Copy-paste prompts

Prompt 1

I am learning Java in Chinese and need to understand the JVM memory model, explain the key concepts with examples I can practice

Prompt 2

Using the toBeBetterJavaer interview question format, quiz me on Java concurrency topics like volatile, synchronized, and thread pools

Prompt 3

Help me work through Spring and MyBatis concepts from the toBeBetterJavaer guide with hands-on code examples

Prompt 4

Create a 4-week Java study plan based on the roadmap in the toBeBetterJavaer repository, starting from Java syntax basics

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