Tic-Tac-Toe in Java deliberately over-engineered to apply features of Java introduced over time

multi module spring boot grpc example project

Serial communication library using the Foreign Function and Memory API

A JDBC Connection Pool that can run on any JDK version. 这是一个可以运行在几乎所有JDK版本上的数据库连接池

Simple SSL enabled tictactoe game with SpringBoot, deployed with docker/podman compose. The game is used to observe JFR events in Prometheus.

Sample code for running jextract over native libraries' headers for C, OpenGL, Python.

An enhanced entity-relationship (EER) model diagram and derivation application built completely in Java.

Cracking the Java Coding Interview

java小知识😀

DCL-200: Java Performance Tuning and Optimization

XMLReader for NFe's where user can visualize and keep track of billings assigned to the company. It's based on Brazilian NFe System (refeer to SEFAZ docs)

Virtual ATM 💸

Alura ONE challenge (backend)

An arithmetic switch statement class activity in Java.

Gestion Bibliotecas

💳 Java-based GUI ATM Machine Simulation using Swing. Supports PIN login, balance check, deposit, withdrawal, fund transfer, and mini statement — with full-screen UI and styled components.