C++ help please! /* This program will output sales data to an output file opened

Question

 C++ help please!  /* This program will output sales data to an output file         opened in append mode.  You will write the program, then          run it twice to verify that the append mode worked.   */ #include <iostream> #include <fstream> #include <iomanip> using namespace std;  int main() {         ofstream outFile;         // Write the statement to open a file called SalesData.txt in append mode          // Test to see if the file is open and if so get prices to write to it         if (outFile.is_open())         {                 outFile << setprecision(2) << fixed << showpoint;  // Want the output to be 2-decimal places                                  double price;                 cout << "Enter a price: ";                 cin >> price;     // priming read                                  while (price != -1)  // -1 is a sentinel value                 {                         outFile << price << endl;   // write the price to the output file                         cout << "Enter a price: ";                         cin >> price;                 }                 // Write code to close the file                                  // Write code to create an input file object and a statement to open the file for input                                  // Test to see if the file is open and if so read the prices and output them to the monitor                                  // Write code to close the file         } } 

Explanation / Answer

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

int main()
{
        ofstream outFile;
        outFile.open("SalesData.txt");
        // Write the statement to open a file called SalesData.txt in append mode

        // Test to see if the file is open and if so get prices to write to it
        if (outFile.is_open())
        {
                outFile << setprecision(2) << fixed << showpoint; // Want the output to be 2-decimal places
              
                double price;
                cout << "Enter a price: ";
                cin >> price;     // priming read
              
                while (price != -1) // -1 is a sentinel value
                {
                        outFile << price << endl;   // write the price to the output file
                        cout << "Enter a price: ";
                        cin >> price;
                }
                outFile.close();
                // Write code to close the file
                return 0;
            
        }
}

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