Create an input file named menu.txt that contains the following breakfast items.

Question

Create an input file named menu.txt that contains the following breakfast items. The input file contains the menu item on one line, followed by the price on a second line.

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

Project Requirements:
Create a struct, menuItemType with three components: menuItem of the type string, menuPrice of the type double, selected of the type bool.
struct menuItemType
{
string menuItem;
double menuPrice;
bool selected;
};

Declare an array of these structs.
menuItemType menu[20];

You will need to write at least three functions:

getdata – will read the data from the input file
store menuItem from the file
store menuPrice from the file
set selected to false
Review the following code:
do
{
getline(infile, menu[i].menuItem);
infile >> menu[i].menuPrice;
infile.get(); // to get of the eol character after the price
… // set the selected member to false
} while (infile);


showmenu – will display a list of the available menu choices

Menu Choices
1. Plain Egg $1.45
2. Bacon and Egg $2.45
3. Muffin $0.99
4. French Toast $1.99
5. Fruit Basket $2.49
6. Cereal $0.69
7. Coffee $0.50
8. Tea $0.75
9. Finished Ordering

You will then prompt the user to enter their choice and update the associated struct member selected to be true. This process should continue until the user enters a sentinel value to end their choices.

printcheck – will display a check listing the items purchased, their individual cost, the total amount, the tax of 8% and the total amount due.

Your Name Restaurant

Plain Egg $1.45
Muffin $0.99
Coffee $0.50

Total $2.94
Tax .24
Total Due $3.18

Notes about String Alignment:
Combining strings and numeric data in a cout statement can be tricky to line up. You may need to change between left and right alignment to get the information to line up.
cout << “hello” << setw(5) << 10 << endl;
Displays: hello***10

cout << setw(10) << “hello” << setw(5) << 10 << endl;
Displays: *****hello***10

cout << setw(10) << left << “hello” << setw(5) << 10 << endl;
Displays: hello*****10***

cout << setw(10) << left << “hello” << setw(5) << right << 10 << endl;
Displays: hello********10

Explanation / Answer

please rate - thanks

#include<iostream>
#include<string>
#include<iomanip>
#include <fstream>
using namespace std;
struct menuItemType
{string menuItem;
double menuPrice;  
bool selected;
};
int getdata(menuItemType[]);
void getOrder( menuItemType[],int);
void showMenu( menuItemType[],int);
void printCheck(menuItemType[],int );
int main()
{
int choices=0;
menuItemType menu[20];                         

cout<<"Welcome to my Restaurant My menu      Item      price ";
choices=getdata(menu);
getOrder(menu,choices);
printCheck(menu,choices);
system("pause");
return 0;
}
void printCheck(menuItemType order[],int items)
{int i;
double total=0,tax;
cout<<" Your Name Restaurant ";
for(i=0;i<items;i++)
     if(order[i].selected)
         {total+=order[i].menuPrice;
         cout<<setw(16)<<left<<order[i].menuItem<<"$"<<
               setprecision(2)<<fixed<<order[i].menuPrice<<endl;
     }
cout<<" Total    "<<"$"<<setprecision(2)<<fixed<<total<<endl;
tax=total*.08;
cout<<"Tax "<<"$"<<setprecision(2)<<fixed<<tax<<endl;
cout<<"Amount Due    "<<"$"<<setprecision(2)<<fixed<<total+tax<<endl;
}
int getdata(menuItemType menu[])
{ifstream infile;
int i=0;
   infile.open("menu.txt");           //open file
   if(infile.fail())             //is it ok?
       { cout<<"file did not open please check it ";
        system("pause");
        system("exit");
        }
do
{
getline(infile, menu[i].menuItem);
infile >> menu[i].menuPrice;
infile.get(); // to get of the eol character after the price
menu[i].selected=false;
i++;
} while (infile);

infile.close();
return i-1;
}
void getOrder(menuItemType menu[],int choices)
{int n;
showMenu(menu,choices);
cout<<"Enter your order item number: ";
cin>>n;
while(n!=choices+1)
{
while(n<1||n>9)
    {cout<<"invalid item number ";
     cout<<"Enter order item number: ";
     cin>>n;
     }
menu[n-1].selected=true;
cout<<"Enter order item number: ";
cin>>n;
}
}
void showMenu(menuItemType a[],int n)
{int i;
    for(i=0;i<n;i++)
         {cout<<i+1<<". "<<setw(16)<<left<<a[i].menuItem<<"$"<<setprecision(2)<<fixed<<a[i].menuPrice<<endl;
          }
    cout<<i+1<<". Finished Ordering ";
}

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