im writing a c++ code and getting stuck on two parts. The first part, when I...
im writing a c++ code and getting stuck on two parts. The first part, when I go to write the customer order out to the file, it writes everything but the price out right. I'll get a weird number like 5.95828e-039 or nan. When I printout to the console it works fine so not sure what's wrong. Second After I write the order out to the file, I then have to go in and read the file and calculate the sum of all the totals. Where I'm also stuck at. Here what I have so far.
enum strength {light=1, medium=2, dark=3};//enum function for
strength
enum coffeeName {Columbian=1, FrenchRoast=2, ItalianBlend=3,
House=4};
struct cafe
{
int size;
int coffeeName;
int strength;
int sugar;
float price;
bool creamer = true;
bool blend = true;
};
struct cust
{
string fname;
cafe rdata;
int order;
};
void calcPrice(cust c)
{
float price = 0;
if(c.rdata.size == 0)
price = 1.50;
else if (c.rdata.size == 1)
price = 2.10;
else if(c.rdata.size == 2)
price = 2.50;
else if(c.rdata.size == 3)
price = 3.00;
else if (c.rdata.size == 4)
price= 4.25;
if(c.rdata.blend != false)
price = price + 0.25;
if(c.rdata.creamer != false)
price = price + 0.08;
if(c.rdata.sugar == 1)
price = price + 0.13;
else if(c.rdata.sugar == 2)
price = price +(2*0.13);
else if(c.rdata.sugar == 3)
price = price + (3*0.13);
cout<<"Cost = $"<<price<<endl;
}
int main()
{
cust c;
struct cust arr[10]; //order number
char ch1,ch2,input; //char input;
int i,option, answer;
int flag = 0;
do //outer do-while
{
do //inner do-while loop
{
cout<<"Main Menu.\n"<<endl;
cout<<"Order a coffee?(Y/N)\n "<<endl;
cin>>input;
cin.ignore();
if((input == 'y')||(input == 'Y'))
{
cout<<"Can I have a name for the order?"<<endl;
getline(cin,c.fname); //inputting a name from user
cout<<"What coffee would you like?"<<"\nColumbian=1,
FrenchRoast=2, ItalianBlend=3, House=4"<<endl;
cin>>c.rdata.coffeeName;
cout<<"How strong?
(Light=1,Medium=2,Dark=3)"<<endl;
cin>>c.rdata.strength;
cout<<"Size of
Coffee?(S=0,R=1,M=2,L=3,XL=4)"<<endl;
cin>>c.rdata.size;
cout<<"How much sugar?"<<endl;
cin>>c.rdata.sugar;
cout<<"Would you like French roast or Italian
blend(Y/N)"<<endl;
cin>>input;
if(ch1=='Y')
{
c.rdata.blend=true;
}
cout<<"Do you want creamer?(Y/N)"<<endl;
cin>>input;
if(ch2=='Y')
{
c.rdata.creamer=true;
}
cout<<"Here is your order number #:"<<(arr[10].order +
1)<<endl;
//writing data to file
fstream order("Order.dat", ios::out|ios::app);
order<<"\nOrderNumber:"<<
c.order<<"\nCoffeeName:"<<c.rdata.coffeeName<<"\nStrength"<<c.rdata.strength<<
"\nSize: "<<c.rdata.size<<"\nSugarAmount:
"<<c.rdata.sugar<<endl;
order<<"Cream: "<<c.rdata.creamer<<"\nCost:
"<<c.rdata.price<<endl;
order.close();
cout<<"Back to Main menu?"<<endl;
cin>>input;
}
}while(input == 'Y'||input == 'y');
//if user selects No in Main Menu
if(input == 'N'||input == 'n')
{
cout<<"[1]View an order\n"
<<"[2] View Total Profit\n";
cin>>answer;
switch(answer)
{
case 1:
cout<<"Enter a order number";
cin>>option;
for(i=0;i<10;i++){
//display option
if(arr[10].order != option)
{
flag = 1;
cout<<"Here is your order:"<<endl;
cout<<"Name:"<<c.fname<<endl<<"CoffeeName:"<<c.rdata.coffeeName<<"\nRoast:"<<c.rdata.strength<<endl;
cout<<"Size:"<<c.rdata.size<<endl;
cout<<"Sugar:"<<c.rdata.sugar<<endl;
std::cout <<"Wanted French or Italian blend:"<<
std::boolalpha << c.rdata.blend << '\n'; //so it prints
out true or false
std::cout <<"Wanted Creamer:"<< std::boolalpha <<
c.rdata.creamer << '\n';
calcPrice(c); //function to total price
break;
}
/*if(!flag)
{
cout<<"Not an order number"<<endl;
exit(1);
}*/
}
case 2:
/*order.open("order.dat", ios::in);
if(order)
{
//Read an item from the file
getline(order, );
while(order)
{
cout<<price(c)<<endl;
}
}*/
cout<<"Testing total view profit";
break;
}//end of switch
//prompt to reorder
cout<<"\n Want to reorder?"<<endl;
cin>>input;
if((input == 'N')||(input == 'n'))
{
cout<<"Closing program"<<endl;
exit(2);
}
}//end of if statement for no
}//outer do-while loop
while((input=='y')||(input ='Y'));
return 0;
}//end of main
Homework Answers
// do comment if any problem arises
// code
#include <iostream>
#include <fstream>
using namespace std;
enum strength
{
light = 1,
medium = 2,
dark = 3
}; //enum function for strength
enum coffeeName
{
Columbian = 1,
FrenchRoast = 2,
ItalianBlend = 3,
House = 4
};
struct cafe
{
int size;
int coffeeName;
int strength;
int sugar;
float price;
bool creamer = true;
bool blend = true;
};
struct cust
{
string fname;
cafe rdata;
int order;
};
void calcPrice(cust &c)
{
float price = 0;
if (c.rdata.size == 0)
price = 1.50;
else if (c.rdata.size == 1)
price = 2.10;
else if (c.rdata.size == 2)
price = 2.50;
else if (c.rdata.size == 3)
price = 3.00;
else if (c.rdata.size == 4)
price = 4.25;
if (c.rdata.blend != false)
price = price + 0.25;
if (c.rdata.creamer != false)
price = price + 0.08;
if (c.rdata.sugar == 1)
price = price + 0.13;
else if (c.rdata.sugar == 2)
price = price + (2 * 0.13);
else if (c.rdata.sugar == 3)
price = price + (3 * 0.13);
c.rdata.price = price;
}
int main()
{
cust c;
struct cust arr[10]; //order number
char ch1, ch2, input; //char input;
int i, option, answer;
int flag = 0;
do //outer do-while
{
do //inner do-while loop
{
cout << "Main Menu.\n"
<< endl;
cout << "Order a coffee?(Y/N)\n " << endl;
cin >> input;
cin.ignore();
if ((input == 'y') || (input == 'Y'))
{
cout << "Can I have a name for the order?" << endl;
getline(cin, c.fname); //inputting a name from user
cout << "What coffee would you like?"
<< "\nColumbian=1, FrenchRoast=2, ItalianBlend=3, House=4" << endl;
cin >> c.rdata.coffeeName;
cout << "How strong? (Light=1,Medium=2,Dark=3)" << endl;
cin >> c.rdata.strength;
cout << "Size of Coffee?(S=0,R=1,M=2,L=3,XL=4)" << endl;
cin >> c.rdata.size;
cout << "How much sugar?" << endl;
cout << "Would you like French roast or Italian blend(Y/N)" << endl;
cin >> input;
if (ch1 == 'Y')
{
c.rdata.blend = true;
}
cout << "Do you want creamer?(Y/N)" << endl;
cin >> input;
if (ch2 == 'Y')
{
c.rdata.creamer = true;
}
cout << "Here is your order number #:" << (arr[10].order + 1) << endl;
//writing data to file
fstream order("Order.dat", ios::out | ios::app);
order << "\nOrderNumber:" << c.order << "\nCoffeeName:" << c.rdata.coffeeName << "\nStrength" << c.rdata.strength << "\nSize: " << c.rdata.size << "\nSugarAmount: " << c.rdata.sugar << endl;
calcPrice(c);
order << "Cream: " << c.rdata.creamer << "\nCost: " << c.rdata.price << endl;
order.close();
cout << "Back to Main menu?" << endl;
cin >> input;
}
} while (input == 'Y' || input == 'y');
//if user selects No in Main Menu
if (input == 'N' || input == 'n')
{
cout << "[1]View an order\n"
<< "[2] View Total Profit\n";
cin >> answer;
switch (answer)
{
case 1:
cout << "Enter a order number";
cin >> option;
for (i = 0; i < 10; i++)
{
//display option
if (arr[10].order != option)
{
flag = 1;
cout << "Here is your order:" << endl;
cout << "Name:" << c.fname << endl
<< "CoffeeName:" << c.rdata.coffeeName << "\nRoast:" << c.rdata.strength << endl;
cout << "Size:" << c.rdata.size << endl;
cout << "Sugar:" << c.rdata.sugar << endl;
std::cout << "Wanted French or Italian blend:" << std::boolalpha << c.rdata.blend << '\n'; //so it prints out true or false
std::cout << "Wanted Creamer:" << std::boolalpha << c.rdata.creamer << '\n';
cout << "Cost = $" << c.rdata.price << endl;
break;
}
}
case 2:
double total_price = 0;
cout << "Testing total view profit";
ifstream order("order.dat", ios::in);
string temp;
double price;
if (order)
{
while (order)
{
// 7 lines which are not required
for (int i = 0; i < 7; i++)
getline(order, temp);
order >> temp >> price;
// add price to total price
total_price += price;
}
}
order.close();
// print total price
cout << "\nTotal profit: " << total_price << endl;
break;
} //end of switch
//prompt to reorder
cout << "\n Want to reorder?" << endl;
cin >> input;
if ((input == 'N') || (input == 'n'))
{
cout << "Closing program" << endl;
exit(2);
}
} //end of if statement for no
} //outer do-while loop
while ((input == 'y') || (input = 'Y'));
return 0;
} //end of main
Order.dat:
Output:
Add Answer to:
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