Example: Interactive Hotel Menu Card with Total Bill in C++

// Interactive Hotel Menu Card with Total Bill
#include <iostream>
using namespace std;

int main() {
    int choice;
    int totalBill = 0;
    char continueOrder = 'y'; // Flag to control the ordering loop

    cout << "Welcome to Our Hotel!" << endl;

    // Step 1: Main ordering loop
    while (continueOrder == 'y' || continueOrder == 'Y') {
        cout << "---------------------" << endl;
        cout << "Our Menu:" << endl;
        cout << "1. Coffee        - Rs. 50" << endl;
        cout << "2. Tea           - Rs. 40" << endl;
        cout << "3. Sandwich      - Rs. 120" << endl;
        cout << "4. Burger        - Rs. 180" << endl;
        cout << "5. Pizza         - Rs. 350" << endl;
        cout << "6. Exit & Pay" << endl;
        cout << "---------------------" << endl;

        // Step 2: Get user's choice
        cout << "Enter your choice: ";
        cin >> choice;

        // Step 3: Process the choice and update bill
        switch (choice) {
            case 1:
                cout << "You selected: Coffee. Rs. 50" << endl;
                totalBill += 50;
                break;
            case 2:
                cout << "You selected: Tea. Rs. 40" << endl;
                totalBill += 40;
                break;
            case 3:
                cout << "You selected: Sandwich. Rs. 120" << endl;
                totalBill += 120;
                break;
            case 4:
                cout << "You selected: Burger. Rs. 180" << endl;
                totalBill += 180;
                break;
            case 5:
                cout << "You selected: Pizza. Rs. 350" << endl;
                totalBill += 350;
                break;
            case 6:
                // Option to exit and pay
                continueOrder = 'n'; // Set flag to exit loop
                break;
            default:
                cout << "Invalid choice. Please select a valid item." << endl;
                break;
        }

        // Step 4: Ask if the user wants to add more items, unless they chose to exit
        if (continueOrder == 'y' || continueOrder == 'Y') { // Only ask if not exiting via choice 6
            cout << "Do you want to add more items? (y/n): ";
            cin >> continueOrder;
        }
    }

    // Step 5: Display the final bill
    cout << "---------------------" << endl;
    cout << "Your Total Bill: Rs. " << totalBill << endl;
    cout << "Thank you for your order!" << endl;

    return 0;
}