🚀 100+ Java Backend Mini Projects

Welcome to the 100+ Java Backend Mini Projects repository!
This is a comprehensive collection of hands-on, real-world mini projects built using Core Java, JDBC, MySQL, and other backend essentials.

Whether you're a beginner learning Java backend or a developer building your portfolio, this repository offers practical, project-based learning to help you master Java backend development.

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📌 What’s Inside?

• ✅ Console-Based Java Projects
• ✅ JDBC + MySQL CRUD Projects
• ✅ Authentication & Login Systems
• ✅ File Handling & Serialization
• ✅ Mini Database Systems
• ✅ Admin Dashboards (CLI)
• ✅ Real-Time Use Cases (e.g., Bank, Library, Hospital, etc.)

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🧠 Who Is This For?

• 🧑‍🎓 Java Students & Beginners
• 👨‍💻 Backend Developers
• 📄 Resume/Portfolio Builders
• 🧪 Java + SQL Practice Seekers
• 💼 MCA/BCA/CS/IT College Projects

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🧩 Categories Covered

Category	Sample Projects
Core Java (OOP + Logic)	Banking App, Calculator, Quiz System
JDBC + CRUD	Student DB, User Registration, Bookstore
Authentication	Login + Registration with SHA-256 Hashing
File I/O	File-Based Attendance, Expense Tracker
MySQL + Relations	E-commerce DB, Inventory, Loan Tracker
Real-life Simulations	Hospital, Library, Railway Reservation
Admin/User Systems	Feedback App, Hostel Allotment
Miscellaneous	Timetable App, Quiz Manager, Notes App

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💻 Requirements

• Java 8 or higher
• MySQL Server (for JDBC projects)
• JDBC Driver (Connector/J)
• Any IDE: IntelliJ IDEA / Eclipse / VS Code
• Git (optional for version control)

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📂 Folder Structure

100-java-backend-mini-projects/
├── 01-console-bank-app/
├── 02-jdbc-student-manager/
├── 03-login-register-auth/
├── 04-library-system-jdbc/
├── ...
├── 100-hospital-patient-manager/
├── README.md
└── LICENSE