Question

Input input2.Lxt Puture Value Prsent Value Monthly Intereat Month 0.4248 Your output 12203.06 10000.00 06-11 0000 . 00-wo. 424148e Expected output 12205.06 Puture Value Pesent Value Monthly Interest Honths 10000 00 0.42 48 2: Compare output 0/10 Output differs. See highlights below. Special character legend Input input3.txt -10000 1.1 48 One or moze of the abovo values are not greater than zoo 10000 -1 12 One or more of the above values are not greater than zero One or more of the above values are not greater than zerO One or more of the abo Your output 10000 1.1 reater zero One or more of the above values are not greater than zero -10000,00 1.10 One or more of the above values are not greater than zero 10000.00 -1,00 12 One or more of the above values are not greater than zero Expected output 100002081,180 One OL liore uf the abov values, are no? greater than zero 000 0.00 One or more of the above values are not greater than zero

Please help the out keeps printing twice

#include
#include
#include
#include
#include
using namespace std;

/**
* Function to calculate the future value and return the same
*/
double calculateFutureValue(double presentValue, double interestRate, int months)
{
   double futureValue = (double)presentValue * pow((1 + interestRate), months);
   return futureValue;
}
/**
* Function to read the input file and assign the value to the variables
*/
unsigned int readfile(ifstream &inF, double &presentValue, double &interestRate, int &months)
{
   inF >> presentValue;
   inF >> interestRate;
   inF >> months;
   if (presentValue <= 0 || interestRate <= 0 || months <= 0)
   {
      return 2;
   }
   else if (!(presentValue <= 0 || interestRate <= 0 || months <= 0))
      return 1;
   else
   {
      if (inF.eof())
         return 0;
   }
}
/**
* Function to write data to file
*/
void write2File(ofstream &of, double futureValue, double presentValue, double interestRate, int months)
{
   of << futureValue << "\t" << presentValue << "\t" << interestRate << "\t" << months << "\n";
}
// main function
int main(void)
{
   std::setprecision(2);
   string infile;
  
   cin >> infile;
  
   ifstream inF;
   inF.open(infile.c_str());
   if (!inF)
   {
      cout << "File \"" << infile << "\" could not be opened\n";
      return -1;
   }
   string outfile = "output.xls";
   ofstream of;
   of.open(outfile.c_str());
   if (!of)
   {
      cout << "Error in creating the output file" << endl;
      return -1;
   }
   of << "Future Value\tPresent Value\tMonthly Interest\tMonths\n"; // printing header to output file
   double futureValue;
   double presentValue;
   double interestRate;
   int months;
   of << fixed << setprecision(2); // to print 2 places after decimal into file
   while (!inF.eof()) // looping untill end of file
   {
      int returnVal = readfile(inF, presentValue, interestRate, months);
      if (returnVal == 2)
      {
         std::setprecision(2);
         cout << presentValue << "\t " << interestRate << "\t " << months << endl;
         cout << "One or more of the above values are not greater than zero" << endl;
      }
      else if (returnVal == 1)
      {
         futureValue = calculateFutureValue(presentValue, interestRate / 100, months);
         write2File(of, futureValue, presentValue, interestRate, months);
      }
   }
   inF.close();
   of.close();
   return 1;
}

Answer 1

//Changes are in bold

//main.cpp
//include header files
#include<iostream>
#include<string>
#include<iomanip>
#include<math.h>
#include<fstream>
using namespace std;
/**
* Function to calculate the future value and return the same
*/
double calculateFutureValue(double presentValue, double interestRate, int months)
{
   double futureValue = (double)presentValue * pow((1 + interestRate), months);
   return futureValue;
}
/**
* Function to read the input file and assign the value to the variables
*/
unsigned int readfile(ifstream &inF, double &presentValue, double &interestRate, int &months)
{
   inF >> presentValue;
   inF >> interestRate;
   inF >> months;
   if (presentValue <= 0 || interestRate <= 0 || months <= 0)
       return 2;
   else if (!(presentValue <= 0 || interestRate <= 0 || months <= 0))
       return 1;
   else if (inF.eof())
           return 0;
      
}
/**
* Function to write data to file
*/
void write2File(ofstream &of, double futureValue, double presentValue, double interestRate, int months)
{
   of << futureValue << "\t" << presentValue << "\t" << interestRate << "\t" << months << "\n";
}
// main function
int main(void)
{
   std::setprecision(2);
   string infile;

   cin >> infile;

   ifstream inF;
   inF.open(infile.c_str());
   if (!inF)
   {
       cout << "File \"" << infile << "\" could not be opened\n";
       system("pause");
       return -1;
   }
   string outfile = "output.xls";
   ofstream of;
   of.open(outfile.c_str());
   if (!of)
   {
       cout << "Error in creating the output file" << endl;
       return -1;
   }
   of << "Future Value\tPresent Value\tMonthly Interest\tMonths\n"; // printing header to output file
   double futureValue;
   double presentValue;
   double interestRate;
   int months;
   of << fixed << setprecision(2);
   // to print 2 places after decimal into file

   while (!inF.eof()) // looping untill end of file
   {
       int returnVal = readfile(inF, presentValue, interestRate, months);
       if (returnVal == 2)
       {
      
           //use fixed <<setprecision(2) before printing
           cout << fixed<<setprecision(2)<<presentValue << "\t " << interestRate << "\t " << months << endl;
           cout << "One or more of the above values are not greater than zero" << endl;
       }
       else if (returnVal == 1)
       {
           futureValue = calculateFutureValue(presentValue, interestRate / 100, months);
           write2File(of, futureValue, presentValue, interestRate, months);
       }
   }
   inF.close();
   of.close();

   system("pause");
   return 1;
}

---------------------------------------------------------------------------

input3.txt

-10000 1.10 48
10000 -1.00 12
10000 1.10 0
0.00 0.00 0

---------------------------------------------------------------------------

Sample Output:

input3.txt 10000.00 One or more of the above values are not greater than zero 10000.0e 1.10 48 -1.00 12 1.10 e eor cere of the above values are not ereater than zero 10000.00 One or more of the above values are not greater than zero 0.00 e.e0 e Press any key te e nbive volves are not greater than zero

---------------------------------------------------------------------------

input3.txt (chagne input file data)

10000 0.42 48

---------------------------------------------------------------------------

Sample output:

Future Value Present Value Monthly Interest Months 12228.42 10000.00 0.42 48

Excel screen shot:

A1 f Future Value 1 Future Value Present Value Monthly Interest Months 10000 2 12228.42 0.42 48