Java Core Learning Example

Java Core Learning Example is an educational Java repository focused on core language concepts and practical examples for beginners and developers reviewing fundamentals. It covers syntax, object-oriented programming, collections, I/O, NIO, reflection, runtime type information, threading, networking, and initialization behavior. Java 8 material includes lambda expressions and the Stream API. Each topic is paired with runnable code and corresponding tests where available. The collection also demonstrates performance comparisons between common collection types and I/O approaches. A small RPC example combines dynamic proxies with sockets to show how multiple Java concepts can work together. The repository is organized as a study reference rather than a production framework.