Question

Please in C++, show screenshots of output plus .txt file. thanks

Breakfast Billing System
Write a program to help a local restaurant automate its breakfast billing system. The program should do the following:
Show the customer the different breakfast items offered by the restaurant.
Allow the customer to select more than one item from the menu.
Calculate and print the bill
Assume that the restaurant offers the following breakfast items (the price of each item is shown to the right of the item):

Plain Egg   $1.45
Bacon and Egg   $2.45
Muffin   $0.99
French Toast   $1.99
Fruit Basket   $2.49
Cereal   $0.69
Coffee   $0.50
Tea   $0.75

Use an array, menuList, of the struct menuItemType, with three components: menuItem of string, menuPrice of type double, and Count of type int. Your program must contain at least the following functions:
Function getData: This function loads the data from a file named menu.txt with the above breakfast items into the array menuList.
Function showMenu: This function shows the different items offered by the restaurant and tells the user how to select the items.
Function printCheck: This function calculates and prints the check. (Note that the billing amount should include a 5% tax.)

A sample output is:
Welcome to Johnny’s Restaurant
Bacon and Egg   1   $2.45
Muffin   1   $0.99
Coffee   2   $1.00
Amount Total       $4.44
Tax       $0.22
Amount Due       $4.66

Answer 1

*******************************************Summary**********************************************

The program for above question is given below with comments and output screenshots and file screenshot

The program is working absolutely same as asked in the question

However , there is not much code in main () function , as everything is done in the functions so...

I hope it works for you!!!!!!

********************************************Program**********************************************

#include <iostream>
#include<fstream>        //for reading and writing in file 
using namespace std;

struct menuItem          //struct menuItem
{
     string Item;
     double Price;
     int Count;
};

menuItem menuList[8];         //creating menuList array of type menuItem

void getData()
{
     ifstream file;
     file.open("menu.txt");        //opening file..Note:the pile must be in same folder as .cpp file otherwise you will have to specify the path of file in quotes
     string item,s;      //variables
     double price;
     int i=0;
     
     do{
         getline(file,item,'$');        //reading the string untill $ sign
         file>>price;                   //reading the double value from file and storing in price
         menuList[i].Item=item;         //storing item name in menuList i th element
         menuList[i].Price=price;       //storing item price in menuList i th element
         menuList[i].Count=0;           //setting count =0 of all items
         i++;
     }while(getline(file,s));           //storing a string in s until new line and if the line is stored then continue the loop
     //In above loop if we dont store the line in s ..it takes the \n character of previous line in the Item name ..so had to store it in string s
     file.close();       //closing file
}

void showMenu()
{
     int choice,count;
     cout<<"*****************MENU**********************"<<endl;
     for(int i=0;i<8;i++)
     {
          cout<<(i+1)<<". "<<menuList[i].Item<<"\t"<<menuList[i].Price<<endl;        //printing menu items and prices from menulist
     }
     
     do
     {
         cout<<endl<<"Enter the number of Item you want to order (0 for exit)"<<endl;          //asking for item to order
          cin>>choice; 
     
     if(choice!=0)            //if user doesn't want to exit
     {     cout<<"How much do you want the "<<menuList[choice-1].Item<<endl;         //asking for the quantity of item
          cin>>count;
          menuList[choice-1].Count=count;              //storing the quantity in the count 
     }else if(choice>8)                                //if choice is not in the list
          cout<<"Enter a valid Item"<<endl;
          
     }while(choice!=0);       //continue until user doesn't press 0
}

void printCheck()
{
     double total=0,tax,due;
     ofstream file("bill.txt");              //opening file for printing bill
     cout<<"-----------------------------"<<endl;      //wrting on console
     cout<<"---------Your Bill---------"<<endl;
     
     file<<"-----------------------------"<<endl;      //wrinting in file
     file<<"---------Your Bill---------"<<endl;
     
     for(int i=0;i<8;i++)
     {
          if(menuList[i].Count!=0)                //if the count of ith elemnt of menulist is not zero then it means the user has ordered that item
         { 
              cout<<menuList[i].Item<<"\t"<<menuList[i].Count<<"\t$"<<menuList[i].Price<<endl;       //printing orders on console
           file<<menuList[i].Item<<"\t"<<menuList[i].Count<<"\t$"<<menuList[i].Price<<endl;         //printing orders in file
         }
         total=total+menuList[i].Price*menuList[i].Count;        //storing the total price of ordered items
     }
     
     tax=total*5/100;         //calculating the tax
     due=total+tax;           //calculating the amount due
     
     //printing the total ,tax,amount due on console
     cout<<"------------------------------"<<endl;
     cout<<"Amount Total:\t"<<"$"<<total<<endl;
     cout<<"Tax:\t\t"<<"$"<<tax<<endl;
     cout<<"Amount Due :\t"<<"$"<<due<<endl;
     cout<<"------------------------------"<<endl;
     
     //printing the total ,tax,amount due in file
     file<<"------------------------------"<<endl;
     file<<"Amount Total:\t\t"<<"$"<<total<<endl;
     file<<"Tax:\t\t\t\t"<<"$"<<tax<<endl;
     file<<"Amount Due :\t\t"<<"$"<<due<<endl;
     file<<"------------------------------"<<endl;
     file.close();       //closing file
}

int main()
{
     getData();          //loading the menu into menulist
     showMenu();         //showing menu to user and getting orders
     printCheck();       //calculating total and amount due and printing the bill on console and file
    return 0;
}

menu.txt

Plain Egg      $1.45
Bacon and Egg  $2.45
Muffin         $0.99
French Toast   $1.99
Fruit Basket   $2.49
Cereal         $0.69
Coffee         $0.50
Tea            $0.75

**********************************************Output**************************************************

Console

Output file

Program