Java Restaurant Ordering & Billing System

A console-based Java application that simulates a restaurant food ordering and billing system.
Users can select a restaurant, choose menu items, place orders, generate bills, and simulate payment.

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Features

✔ Restaurant selection
✔ Menu-based food ordering
✔ Quantity selection
✔ Add multiple items to order
✔ Automatic bill generation
✔ Discount calculation (10% above ₹500)
✔ GST calculation (5%)
✔ Dine-in / Takeaway option
✔ Packing charge for takeaway
✔ Payment simulation (UPI / Cash)
✔ Random Bill ID and Order ID generation
✔ Mobile number validation
✔ Clean formatted bill output

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Technologies Used

• Java
• Console I/O
• Switch Case
• Loops
• String Formatting
• Thread.sleep() Simulation

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Project Structure

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Sample Flow

1. Enter customer details
2. Select order type (Dine-in / Takeaway)
3. Choose restaurant
4. Select food items
5. Enter quantity
6. Add multiple items
7. Bill generation
8. Choose payment method
9. Order confirmation

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Learning Outcomes

This project demonstrates:

• Java basic programming
• Conditional statements
• Loops and control flow
• Input validation
• Console UI formatting
• Billing logic implementation
• Basic payment simulation

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Author

Pravin P R

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Future Improvements

• GUI version using Java Swing / JavaFX
• Database integration (MySQL)
• Admin menu management
• Order history tracking