Create a program that saves prices in a sequential access file. Save the prices

Question

Create a program that saves prices in a sequential access file. Save the prices in fixed-point notatio with two decimal places. Use a negative number as teh sentinel value. Save and then run the program. Enter the following prices an sentinel value: 10.50, 15.99, and -1. Now, run the program again. Thistime, enter the following pries and sentiel value: 20, 76.54, 17.34,and -1. Open the file in a text editor. The file should contan five prices, with each prices appearing on a seperate line in the file.

Explanation / Answer

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#include <iostream>
#include <fstream>
#include <iomanip>
using namespace std;
int main(){
double n;
ofstream out;
char filename[80];
cout<<"Enter file name: ";
cin>>filename;
   out.open(filename,fstream::app);        
   cout<<"enter a number(-1 to exit): ";
cin>>n;               
   while(n!=-1)       
     {
     out<<setprecision(2)<<fixed<<n<< endl;
     cout<<"enter a number(-1 to exit): ";
     cin>>n;
     }
out.close();
return 0;

}

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