Restaurant Management System

This Java-based project simulates a simple restaurant management system with functionalities like user account creation, login, menu navigation, order placement, and bill checkout. The application runs in a command-line interface and is designed to showcase basic Java programming skills, including user input handling, data structures, and control flow.

Features

User Account Management:

• Create an account by providing a username, password, and contact number.
• Log in using either a username or contact number along with the password.

Menu Navigation:

• View and select dishes from separate vegetarian and non-vegetarian menus.
• Add items to a virtual cart and calculate the total bill dynamically.

Order Checkout:

• View all purchased items in the cart.
• Display the total bill.

Looped Navigation:

• Seamless navigation between menus and homepage.
• Logout functionality for exiting the application.

Tech Stack

• Programming Language: Java
• Tools: Command-line interface for input/output

How to Run the Application

1. Prerequisites:

• Ensure you have Java installed on your system (version 8 or above).
• Use any Java-supported IDE (e.g., IntelliJ IDEA, Eclipse) or a terminal/command prompt with Java compiler access.

2. Steps:

• Clone the repository or download the project files.

• Compile the Java file:

  javac Restaurant.java  
  

• Run the compiled program:

   java Restaurant  
  

• Follow the on-screen instructions to use the application.

Usage Guide

Main Menu

1. Sign In: Log in to an existing account.
2. Sign Up: Create a new account to access the restaurant's features.

Home Page

• Veg Menu: Browse and select vegetarian dishes.
• Non-Veg Menu: Browse and select non-vegetarian dishes.
• Checkout: View the items in your cart and the total bill.
• Logout: Exit the application.

Menu Options

Each menu displays dishes with unique IDs and prices. Enter the dish ID to add the item to your cart or navigate back to the main menu.

Example Execution Flow

1. Create an account by providing:

   • Username: john_doe
   • Password: secure123
   • Contact Number: 9876543210

2. Log in using the same credentials.

3. Browse through the vegetarian or non-vegetarian menu, adding dishes to your cart.

   • Example: Adding "Pav Bhaji" (ID: 102) to the cart.

4. View your cart at checkout, showing purchased items and the total bill.

5. Logout to end the session.

Happy coding! 😊