9_5 mindtap

#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>

using namespace std;

struct menuItemType {
    string menuItem;
    double menuPrice;
    char selected;
    int quantity;
};

void getData(menuItemType menuList[]); //This function loads the data into the array menuList
void showMenu(menuItemType menuList[]); //This function shows the different items offered by the restaurant and tells the user how to select the items.
void printCheck(menuItemType menuList[]); //5% sales tax - Format your output with two decimal places. The name of each item in the output must be left justified.

int main()
{

    menuItemType menuList[8];
    getData(menuList);
    showMenu(menuList);

    return 0;
}

void getData(menuItemType menuList[])
{

    ifstream infile;
    infile.open("9_4datafile.txt");

    for (int i = 0; i < 8; i++) {
        getline(infile, menuList[i].menuItem);
        infile >> menuList[i].menuPrice;
        menuList[i].selected = 'n';
        menuList[i].quantity = 0;
        infile.ignore();
    }
    infile.close();
};

void showMenu(menuItemType menuList[])
{

    int count = 1;
    int itemNumber = 0;
    char selection;

    cout << "\n Welcome to Charlie Tuna's Resturant"
         << "\n----Today's Menu----"
         << endl;

    for (int i = 0; i < 8; i++) {
        cout << count++ << ". ";
        cout << menuList[i].menuItem << " "
             << fixed << setprecision(2) << "$" << menuList[i].menuPrice
             << endl;
    }

    cout << "\nYou can make up to 8 different selections."
         << "\nDo you want to make selection Y/y (Yes), N/n (No): ";
    cin >> selection;

    while (selection == 'y' || selection == 'Y') {

        cout << "\nEnter item number: ";
        cin >> itemNumber;
        menuList[itemNumber - 1].selected = 'y';
        cout << "\nHow many would you like to order?: ";
        cin >> menuList[itemNumber - 1].quantity;
        cout << "\nWould you like to make another selection: ";
        cin >> selection;
    }
    printCheck(menuList);
    cout << "\nThank you and have a nice day!";
};

void printCheck(menuItemType menuList[])
{

    double grandTotal = 0;
    double rollingTotal = 0;

    for (int i = 0; i < 8; i++) {

        if (menuList[i].selected == 'y' || menuList[i].selected == 'Y') {
            rollingTotal += (menuList[i].menuPrice) * (menuList[i].quantity);
            grandTotal = rollingTotal + (rollingTotal * 0.05);
            cout << menuList[i].quantity << " " << menuList[i].menuItem << endl;
        }
    }

    cout << "\nYour total is: $" << fixed << setprecision(2) << grandTotal << endl;
};