Question

CSC 126 Arrays, Functions, & File 'O Part I Your program should prompt the user to calculate the total bill of a transaction at a Book store After the calculations have been performed, the program should output the result to the screen and save the output in a text file which can be later retrieved The program should work as follows: XYZ Book Store Sales Register This program calculates your total bill and generates a receipt for you. Please enter 'x' to exit the program Please enter the name of the book: Harry Potter and the Sorcerer's Stone Please enter the price: 8.99 Pleasc enter the name of the book: Lord of the Rings: The Fellowship of the Ring Please enter the price: 6.99 Please enter the name of the book: x Amount: S15.98 Sales Tax: 8.875% Total Amount Due: $ 17.39 Output File Generated after program execution: Cin. cleanl XYZ Bookstore Store Receipt Harry Potter and the Sorcerer's Stone $8.99 Lord of the Rings: The Fellowship of the Ring $6.99 Amount: $15.98 Sales Tax: 8.875% Total Amount Due: $17.39 Your program must contain the following functions: void printHeading)://Prints out the program heading and intro void processInput ()//takes input, loops, prints to screen and writes out to file double calcTotal (double amt); //calculates total with sales tax

Answer 1

Hello, here is the completed code you wanted. Every important statement is explained using comments. Please check and let me know if you have any doubts. Thanks.

I have completed the program in C++ , because there is no language specified in the question. If you want it in any high level language please comment.

CODE

#include<fstream>
#include<iostream>
#include<iomanip>
using namespace std;

//tax declared as global
double tax = 0.08875;

//function to print program heading and intro
void printHeading()
{
   //printing heading
   cout<<"\t\t\tXYZ Book Store Sales Register";
   cout<<"\n_______________________________________________________________________\n";
  
   //printing intro
   cout<<"\nThis program calculates your total bill and generates a receipt for you. \nPlease enter 'x' to exit the program\n";
}

//function to calculates total with sales tax
double calcTotal(double amt)
{
   //calculating total amount
   amt = amt + (amt * tax);
  
   //returns total amount
   return amt;
}

//function to read input print output to screen and write to file
void processInput()
{
   //variables
   string name;
   double price, total = 0;
   ofstream outfile;
  
   //opening file
   outfile.open("Receipt.txt");
   outfile<<"\nXYZ Book Store Receipt";
   outfile<<"\n_______________________________________________________________________\n";
  
   while(true)
   {
       //clearing buffer
       fflush(stdin);
      
       //prompt for name
       cout<<"\nPlease enter the name of the book: ";
       getline(cin, name);
      
       //if name is x
       if(name == "x")
           break;
       //prompt for price
       cout<<"\nPlease enter the price: ";
       cin>>price;
      
       //calculating total
       total = total + price;
      
       //writing name and price to file
       outfile<<"\n"<<name<<"\t$"<<price;
   }
  
   //printing total amount
   cout<<"\nAmount: $"<<total;
  
   //printing sales tax
   cout<<"\nSales Tax: "<<(tax*100)<<"\%";
  
   //writing total amount
   outfile<<"\nAmount: $"<<total;
  
   //writing sales tax
   outfile<<"\nSales Tax: "<<(tax*100)<<"\%";
  
   //calling calcTotal
   total = calcTotal(total);
  
   //printing and writing total amount with tax
   cout<<"\nTotal Amount Due: "<<fixed<<setprecision(2)<<total;
   outfile<<"\nTotal Amount Due: "<<fixed<<setprecision(2)<<total;
}

//main function
int main()
{
   //calling printHeading
   printHeading();
  
   //calling processInput
   processInput();
}

OUTPUT

RYZ Book Store Sales Register This program calculates your total bill and generates a receipt for you Please enter 'x' to exit the program Please enter the name of the book: Harry Potter and the Sorcerer's Stone Please enter the price: 8.99 Please enter the name of the book: Lord of the Rings: The Fellowship of the Ring Please enter the price: 6.99 Please enter the name of the book: x Amount: $15.98 Sales Tax: 8.875% Total Amount Due: 17.40 Process exited after 40.66 seconds with return value 0 Press any key to continue .

圖Receipt.txt E 1 1 2 XYZ Book Store Receipt 5 Harry Potter and the Sorcerer's Stone 8.99 6 Lord of the Rings: The Fellowship of the Ring $6.99 7Amount: $15.98 8 Sales Tax: 8.875% 9 Total Amount Due: 17.40

CODE SCREEN SHOT

# include<fstream> #include<iostream> # include<iomanip> using namespace std //tax declared as global 7 double tax 0.08875; //function to print program heading and intro void printHeading () 10 12 //printing heading cout<<"tititxYZ Book Store Sales Register"; 13 14 coutくく 15 16 //printing intro cout<ぐ\nThis program calculates your total bill and generates a receipt for 17 you. nPlease enter x to exit the programin" 18 19 20 //function to calculates total with sales tax 21 double calcTotal (double amt) 23 //calculating total amount 24 amt = amt + (amt * tax) ; 25 26 //returns total amount 27 return amt; 28 リ 29 30 I/function to read input print output to screen and write to file void processInput () 31 32曰{ //variables 34 string name:

35 double price, total0 36 ofstream outfile; 37 38 //opening file outfile.open ("Receipt.txt") outfileくぐ\nXYZ Book Store Receipt"; 39 outfile<< In" while (true) //clearing buffer 46 fflush (stdin); 47 //prompt for name 49 cout<ぐ\nPlease enter the name of the book: "; 50 getline (cin, name); 51 52 //if name is x 53 if (name-"x") 54 break //prompt for price cout<<"\nPlease enter the price: "; 56 57 cin>>price: 58 //calculating total 60 total total price; //writing name and price to file outfile<<" \n"<<nameくぐ\te"くくprice ; 63 64 65 //printing total amount 67 cout<<"\nAmount : $"くくtotal ; 68 69 // printing sales tax

70 coutくぐ\nSales Tax: "<< (tax* 100)くぐほ"; 71 72 //writing total amount 73 outfile<<" nAmount: $<<total; 74 75 //writing sales tax 76 outfileくぐ\nSales Tax: "<< (tax* 100)くぐほ"; //calling calcTotal 79 total-calcTotal (total) 80 81 //printing and writing total amount with tax 82 cout<<"\nTotal Amount Due: "<<fixedくくsetprecision (2)くくtotal; 83 outfile<<"\nTotal Amount Due: "くくfixedくく3etprecision (2)くくtotal ; 84 L 85 //main function 86 e7 int main) 89 //calling printHeading 90 printHeading ): 91 92 //calling processInput 93 processInput ) 94L}