30+ Expert-Ready Cheat Sheets & Spring Boot OpenAI Integration Application

Tired of forgetting key Java and Spring Boot concepts before interviews?
You’re not alone — and this pack fixes that problem instantly.

This 35+ Java & Spring Boot Cheat Sheets Pack is designed to help you revise faster, remember longer, and stay confident in interviews, at work, or while studying… anytime, anywhere.

Inside, you’ll find clean, concise, visual sheets that simplify even the most complex topics into easy-to-digest pages. No fluff. No confusion. Just pure clarity.

📘 What’s Inside?

A complete collection of developer-focused cheat sheets covering:

• OOP (Object-Oriented Programming)
• Threads & Concurrency Essentials
• Spring Boot Annotations (Clean & Visual)
• Data Structures & Algorithms Overview
• Authentication & Authorization Explained
• SQL Basics for Backend Engineers
• All Java 8 Features (Lambdas, Streams, Optional…)
• Microservices Architecture (Complete Breakdown)
• Spring Boot Caching Cheat Sheet
• Spring Boot 4 New Features
• Design Patterns Essentials
• REST Best Practices
• System Design Quick Sheets
• Java Clean Code Tips Essential Practices for Professional Developers
• …and 25+ more sheets for real-world backend development.

🛒 Spring Boot REST API Project with OpenAI Integration & PostgreSQL & Docker

Build a modern Spring Boot REST backend with OpenAI integration, PostgreSQL persistence, and Docker-based local setup. This educational project is designed to teach developers how to add AI-powered features to a backend system while following clean architecture and best practices.

Key Features:

• OpenAI integration via Spring AI
• Clean RESTful CRUD APIs
• Layered architecture (Controller → Service → Repository)
• PostgreSQL database with Spring Data JPA
• Docker Compose setup for quick local deployment
• Postman collection and SQL session file for testing
• Portfolio-ready, fully documented, and easy to extend

💡 Why You’ll Love It

If you struggle to memorize concepts or get overwhelmed before interviews, these cheat sheets will:

• Help you study faster
• Make you recall concepts instantly
• Keep all essential Java knowledge in one clean, organized place
• Remove the need for endless Googling and tutorials

🎯 Perfect For:

✔ Interview preparation
✔ Quick daily Java revision
✔ Freshers, Juniors & Seniors
✔ Backend developers who want clarity
✔ Preparing for Spring Boot 4 & Java 21 world

check it out for yourself...