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🍔 iHungry Burger Ordering System
A simple Java console application that simulates a burger shop ordering system. This project was created for learning Object-Oriented Programming (OOP) concepts such as classes, objects, constructors, arrays, methods, validation, and encapsulation.
🚀 Features
Place an Order
Automatically generates unique Order IDs (B0001, B0002, …).
Validates customer phone number (must be 10 digits starting with 0).
Validates customer name (only letters allowed).
Calculates total price (Quantity × BURGERPRICE).
Best Customer
Finds customers who spent the most.
Ignores cancelled orders.
Displays all customers with their total spent, sorted from lowest → highest.
Search Order
Look up an order using its Order ID.
Displays order details (ID, customer, quantity, total, and status).
Search Customer
Search orders by customer phone number.
Displays all orders placed by that customer.
View Orders by Status
Delivered Orders
Preparing Orders
Cancelled Orders
Update Order Details
Update order quantity (recalculates price).
Update order status (PREPARING, DELIVERED, CANCELLED).
Restrictions: Delivered or Cancelled orders cannot be updated.
Exit
Cleanly exits the system.
🛠️ Technologies Used
Java (Core, Console I/O, OOP)
No external libraries needed
📂 Project Structure ├── Burger.java # Burger class with order details & methods ├── BurgerShop2.java # Main class with menu & logic
Burger.java
Fields: orderId, customerId, customerName, burgerQty, burgerPrice, orderStatus
Methods: Getters, setters, update quantity, update status
BurgerShop2.java
Handles menu, input, and program flow
Stores all Burger objects in a static array
Contains validation and search functions
Clone the repository
git clone https://github.com/your-username/burger-ordering-system.git cd burger-ordering-system
Compile the program
javac BurgerShop2.java
Run the program
java BurgerShop2
📖 Example Menu +----------------------------------------------------+ | iHungry Burger | +----------------------------------------------------+
[1] Place Order [2] Search Best Customer [3] Search Order [4] Search Customer [5] View Orders [6] Update Order Details [7] Exit
Enter an option :
🔮 Future Improvements
Replace arrays with ArrayList for easier order management.
Allow customer names with spaces (e.g., "John Doe").
Save orders to a file (so data isn’t lost when the program closes).
Add discounts and loyalty points for frequent customers.