Contact Manager

A high-performance Java desktop application for contact management, featuring robust input validation and persistent data storage.

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✨ Features

• ✅ Add Contacts — Regex validation for name, phone, and email with duplicate prevention
• 🔍 Real-time Search — Find contacts instantly by name, phone, or email
• 🗑️ Delete Contacts — Safe deletion with confirmation dialogs
• 📊 View All Contacts — Instant table refresh with clean UI
• 💾 CSV Persistence — Data stored in contacts.csv automatically
• 🎨 Modern UI/UX — Segoe UI fonts, professional colors, responsive layout
• ⚡ Lightweight & Fast — Pure Java, no external dependencies

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📸 Screenshots

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🚀 Quick Start

Prerequisites

• Java 8+ (tested with Java 17)

Run

# Compile
javac ContactManager.java

# Run
java ContactManager

The app launches with a clean GUI. A contacts.csv file is auto-created if missing.

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📝 CSV Format

Name,Phone,Email
Jonas,8965412396,jonas1990@gmail.com
Hannah,74858528525,hannah1990@gmail.in

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🛠 Tech Stack

• Frontend/UI: Java Swing (AWT, JTable, Layouts)
• Validation: Regex patterns for input sanitization
• Storage: CSV (File I/O with BufferedReader/Writer)
• UX Enhancements: Custom fonts, colors, focus handling

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🎓 Academic Context

Course Project: This repository showcases a technical mini-project developed for the Industry Practices curriculum.

• Institution: Thakur College of Engineering & Technology
• Specialization: B.Tech in Artificial Intelligence & Machine Learning (AI&ML)
• Timeline: Semester 3

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⭐ Star this repo if you find it useful! ⭐

Built with ❤️ using Java Swing