📋 Electronic Health Record (EHR) System

Final Project for CC103 - Object-Oriented Programming

Developed by Davedev

A console-based Electronic Health Record (EHR) System built with Java, designed for healthcare professionals to manage patient and doctor records efficiently.

✨ Features

Patient Management

✅ CRUD Operations: Add, view, update, and archive patient records
📂 Archival System: Safely archive/unarchive records without deletion
🔍 Search: Find patients by ID
📝 Detailed Records:
- Personal info, medical history, allergies, treatment plans
- Emergency contacts, assigned doctors

Doctor Management

👨‍⚕️ Add/View Doctors: Track doctor specializations
🏷️ Assign Doctors: Link patients to doctors

User Experience

🎨 Color-Coded Console: ANSI colors for better readability
✔️ Input Validation: Ensures correct formats (dates, phone numbers, etc.)
📅 Auto Age Calculation: From date of birth

Security & Compliance

🔒 Privacy Notice: Prompts users about data confidentiality
♻️ Safe Archiving: Prevents accidental data loss

🛠️ Technical Implementation

OOP Principles Used

Encapsulation: Private fields with getters/setters
Abstraction: Separate UI (*View classes) from logic (*Service classes)
Composition: PatientService depends on DoctorService

Key Classes

Class	Purpose
`Patient`	Stores patient data (ID, name, medical history, etc.)
`Doctor`	Manages doctor details (ID, name, specialization)
`PatientService`	Handles patient operations (CRUD, archiving)
`InputValidator`	Validates user inputs (numbers, dates, text)
`MenuUtil`	Manages console UI (menus, screen clearing)

Error Handling

Try-catch blocks with colored error messages
Prevents crashes on invalid inputs

🚀 How to Run

Requirements:
- Java 17+
- Terminal/CMD (for console output)

Steps:

git clone 
cd EHR-System  
javac Main.java  
java Main

📜 License

MIT License - Free for academic/learning use.

👥 Contributors

Anggit, John Robert
Balonzo, John Venedick
Gascon, Jerell
Quidan, Excequel
Rentoria, Mark Rainier

Submitted for CC103 - AISAT DASMARIÑAS COLLEGE

🔹 For a detailed code walkthrough, check the source files!

Davedev0/EHR