Order Management System

📌 About the Project

This project is a simple Order Management System developed in Java as a practice exercise to apply Object-Oriented Programming concepts.

The system allows the user to:

• Register client data (name, email, birth date)
• Create an order with a chosen status
• Add multiple products to the order
• Automatically calculate subtotal per item
• Calculate total order value
• Display a formatted order summary
• Validate date format input

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🛠️ Technologies Used

• Java
• OOP (Object-Oriented Programming)
• Enums
• Composition
• Lists (ArrayList)
• Date and Time API (LocalDate, LocalDateTime)
• StringBuilder
• Exception Handling (Date validation)

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📂 Project Structure

application
└── Program.java

entities
├── Client.java
├── Product.java
├── Order.java
├── OrderItem.java
└── enums
  └── OrderStatus.java

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🚀 Features

• Register client data
• Create order with status (PROCESSING, SHIPPED, DELIVERED, etc.)
• Add multiple products to the order
• Calculate subtotal for each item
• Calculate total order value
• Display formatted order summary

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🎯 Purpose

This project was created for learning purposes to practice:

• Class relationships
• Object composition
• Enum usage
• Date manipulation
• Clean code organization
• Basic exception handling

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👨‍💻 Author

Pedro Amorim