Inventory management system based on react js

A collection of my book notes on various subjects, mainly computer science

📂 A kanban board that allows you to drag and drop tasks between columns.

Example of a symmetrical and asymmetrical encryption algorithm, digital signature, and the blockchain consensus mechanism

Simple example of a Research Laboratory Management application using Spring Boot, Hibernate, MySQL, Thymeleaf and Spring Security.

A simple authentication form using react and jwt using spring security

OpenTelemetry auto-instrumentation and instrumentation libraries for Java

The E-Commerce Application is built using Java and Spring Boot, with security, scalability, and ease of maintenance. The backend uses Spring Data JPA to interact with a MySQL database, making it ea…

Spring Security

this is a the frontend part of a web chat application that is build on top of websockets and apache kafka using spring boot in backend and react js in front end

About this is a the backend part of a web chat application that is build on top of websockets and apache kafka using spring boot in backend and react js in front end

ChatGPT Java SDK。支持 GPT-4o、 GPT-5 API。开箱即用。An unofficial Java SDK for seamless integration with ChatGPT's GPT-5 and GPT-4 APIs. Ready-to-use, simple setup, and efficient for building AI-powered app…

Sample JAVA project on how to implement JWT security based using Spring boot 3 and Spring security 6