zhongfucheng3y/athena

Athena is a Java backend knowledge collection and learning guide aimed at helping beginners grow into professional Java developers. Think of it as a curated study map: it organizes hundreds of articles covering the most important Java topics that come up in technical job interviews, from the basics of the language all the way through advanced subjects. The collection covers Java fundamentals like annotations, generics, and NIO (non-blocking I/O), as well as concurrency topics such as thread pools, locks, and Java's memory model. It also includes the Java Virtual Machine (the engine that runs Java programs), popular collections like List and Map, and widely-used frameworks and tools, Spring, Redis, Kafka, and MySQL. Networking concepts like TCP and HTTP round out the picture. The repository works as a reading list of linked articles rather than runnable code. Each article is written in plain language to explain concepts that frequently appear in job interviews at tech companies. Someone preparing for a Java developer position, or a self-taught developer trying to fill gaps in their backend knowledge, would use this as a roadmap to work through systematically.