Program fails to display output

[fumes007]

how do i display the output ? This program only saves the output to "gpa.txt" I want it to also display the output to cmd.

#include <iostream>
#include <iomanip>
#include <fstream>
#include <cmath>
#include <string>

using namespace std;
const int SIZE = 10;
const string line = "=======================================================================================================================";
int sid[SIZE];
string first[SIZE];
string last[SIZE];
float cch[SIZE];
float cgpa[SIZE];
float class1[SIZE];
float class2[SIZE];
float class3[SIZE];
float class4[SIZE];
float class5[SIZE];
float sgpa[SIZE];
float ngpa[SIZE];
float means[9];
float c1[SIZE];
float c2[SIZE];
float c3[SIZE];
float c4[SIZE];
float c5[SIZE];
string header;
float sum = 0;
float credit = 15;
float points1,points2,points3,points4,points5,points6,points7,points8,points9,points10;

//Function prototypes
void readdata();
float mean(float []);
void savemean();
void point(float[]);
void assignPoints();
void sgpaCalc();
void ngpaCalc();
void output();

ifstream fin;
ofstream fout;

int main()
{
readdata();
assignPoints();
sgpaCalc();
ngpaCalc();
output();

return 0;
}
//-----------------------------------------------------------------------------------------------------
// Function reads the data from a file and saves them to arrays.
//-----------------------------------------------------------------------------------------------------
void readdata()
{
fin.open("student.txt");
getline(fin,header);
for(int i = 0; i < SIZE; i++)
fin >> sid[i] >> first[i] >> last[i] >> cch[i] >> cgpa[i] >> class1[i] >> class2[i] >> class3[i] >> class4[i] >> class5[i];
}
//-----------------------------------------------------------------------------------------------------
// Function calculates the sum and returns the average.
//-----------------------------------------------------------------------------------------------------
float mean(float mean[])
{
sum = 0;
for(int i = 0; i < SIZE; i++)
{
sum += mean[i];
}
return sum/SIZE;
}
//----------------------------------------------------------------------------------------------------
// Function stores the returned averages into the means array
//----------------------------------------------------------------------------------------------------
void savemean()
{
means[0] = mean(cch);
means[1] = mean(cgpa);
means[2] = mean(class1);
means[3] = mean(class2);
means[4] = mean(class3);
means[5] = mean(class4);
means[6] = mean(class5);
means[7] = mean(sgpa);
means[8] = mean(ngpa);
}
//---------------------------------------------------------------------------------------------------
// Function determines the number of grade points for each element in the array
//---------------------------------------------------------------------------------------------------
void point(float a[])
{
if (a[0] >= 90) points1 = 12;
else if (a[0] >= 80) points1 = 9;
else if (a[0] >= 70) points1 = 6;
else if (a[0] >= 60) points1 = 3;
else if (a[0] < 60) points1 = 0;
if (a[1] >= 90) points2 = 12;
else if (a[1] >= 80) points2 = 9;
else if (a[1] >= 70) points2 = 6;
else if (a[1] >= 60) points2 = 3;
else if (a[1] < 60) points2 = 0;
if (a[2] >= 90) points3 = 12;
else if (a[2] >= 80) points3 = 9;
else if (a[2] >= 70) points3 = 6;
else if (a[2] >= 60) points3 = 3;
else if (a[2] < 60) points3 = 0;
if (a[3] >= 90) points4 = 12;
else if (a[3] >= 80) points4 = 9;
else if (a[3] >= 70) points4 = 6;
else if (a[3] >= 60) points4 = 3;
else if (a[3] < 60) points4 = 0;
if (a[4] >= 90) points5 = 12;
else if (a[4] >= 80) points5 = 9;
else if (a[4] >= 70) points5 = 6;
else if (a[4] >= 60) points5 = 3;
else if (a[4] < 60) points5 = 0;
if (a[5] >= 90) points6 = 12;
else if (a[5] >= 80) points6 = 9;
else if (a[5] >= 70) points6 = 6;
else if (a[5] >= 60) points6 = 3;
else if (a[5] < 60) points6 = 0;
if (a[6] >= 90) points7 = 12;
else if (a[6] >= 80) points7 = 9;
else if (a[6] >= 70) points7 = 6;
else if (a[6] >= 60) points7 = 3;
else if (a[6] < 60) points7 = 0;
if (a[7] >= 90) points8 = 12;
else if (a[7] >= 80) points8 = 9;
else if (a[7] >= 70) points8 = 6;
else if (a[7] >= 60) points8 = 3;
else if (a[7] < 60) points8 = 0;
if (a[8] >= 90) points9 = 12;
else if (a[8] >= 80) points9 = 9;
else if (a[8] >= 70) points9 = 6;
else if (a[8] >= 60) points9 = 3;
else if (a[8] < 60) points9 = 0;
if (a[9] >= 90) points10 = 12;
else if (a[9] >= 80) points10 = 9;
else if (a[9] >= 70) points10 = 6;
else if (a[9] >= 60) points10 = 3;
else if (a[9] < 60) points10 = 0;
}
//----------------------------------------------------------------------------------------------------
// Function assigns the grade points to each element of a grade point array for each class
//----------------------------------------------------------------------------------------------------
void assignPoints()
{
point(class1);
c1[0] = points1;
c1[1] = points2;
c1[2] = points3;
c1[3] = points4;
c1[4] = points5;
c1[5] = points6;
c1[6] = points7;
c1[7] = points8;
c1[8] = points9;
c1[9] = points10;
point(class2);
c2[0] = points1;
c2[1] = points2;
c2[2] = points3;
c2[3] = points4;
c2[4] = points5;
c2[5] = points6;
c2[6] = points7;
c2[7] = points8;
c2[8] = points9;
c2[9] = points10;
point(class3);
c3[0] = points1;
c3[1] = points2;
c3[2] = points3;
c3[3] = points4;
c3[4] = points5;
c3[5] = points6;
c3[6] = points7;
c3[7] = points8;
c3[8] = points9;
c3[9] = points10;
point(class4);
c4[0] = points1;
c4[1] = points2;
c4[2] = points3;
c4[3] = points4;
c4[4] = points5;
c4[5] = points6;
c4[6] = points7;
c4[7] = points8;
c4[8] = points9;
c4[9] = points10;
point(class5);
c5[0] = points1;
c5[1] = points2;
c5[2] = points3;
c5[3] = points4;
c5[4] = points5;
c5[5] = points6;
c5[6] = points7;
c5[7] = points8;
c5[8] = points9;
c5[9] = points10;
}
//-------------------------------------------------------------------------------------------------------
// Function calculates and stores the semester GPA
//-------------------------------------------------------------------------------------------------------
void sgpaCalc()
{
for(int i = 0; i < SIZE; i++)
sgpa[i] = (c1[i] + c2[i] + c3[i] + c4[i] + c5[i]) / 15;
}
//-------------------------------------------------------------------------------------------------------
// Function calculates and stores the cumulative GPA
//-------------------------------------------------------------------------------------------------------
void ngpaCalc()
{
for(int i = 0; i < SIZE; i++)
ngpa[i] = (cgpa[i] * cch[i] + sgpa[i] * 15) / (cch[i] + 15);
}
//-------------------------------------------------------------------------------------------------------
// Function outputs all the data to a file
//-------------------------------------------------------------------------------------------------------
void output()
{
fout.open("gpa.txt");
fout << setw(5) << "NO." << setw(4) << "SID" << setw(15) << "NAME" << setw(14) << "CCH" << setw(9) << "CGPA" << setw(10) << "CLASS1" << setw(9) << "CLASS2" << setw(9) << "CLASS3" << setw(9) << "CLASS4" << setw(9) << "CLASS5" << setw(16) << "SGPA" << setw(11) << "CGPA" << endl;
fout << line << endl;
for(int i = 0; i < SIZE; i++)
{
fout << setprecision(0) << fixed;
fout << setw(4) << (i+1) << setw(6) <<  sid[i] 
<< setw(10) << first[i] 
<< setw(9) << last[i] 
<< setw(9) << setprecision(0) << fixed <<cch[i] 
<< setw(9) << setprecision(2) << fixed <<cgpa[i] 
<< setw(9) << setprecision(1) << fixed <<class1[i] 
<< setw(9) << setprecision(1) << fixed <<class2[i] 
<< setw(9) << setprecision(1) << fixed <<class3[i] 
<< setw(9) << setprecision(1) << fixed <<class4[i] 
<< setw(9) << setprecision(1) << fixed <<class5[i] 
<< setw(17) << setprecision(2) << fixed << sgpa[i] 
<< setw(11) << setprecision(2) << fixed << ngpa[i] 
<< endl;
}
fout << line << endl << endl;
fout << setw(18) << "Averages" << setw(13);
savemean();
fout << setw(21) << means[0] << setw(8) << means[1] << setw(9) << means[2] << setw(9) << means[3] << setw(9) << means[4] << setw(9) << means[5] << setw(9) << means[6] << setw(17) << means[7] << setw(11) << means[8];
}

[ritstudent]

Hello,

You would need to call a command that writes to stdout (the terminal displays what was written to stdout as well as stderr. The most simple way to do this would be to just call cout with the same data as what you have written to fout.

Here is a post that I ran into that may help. The following thread is discussing writing to both stdout and a file simultaneously.
http://www.cplusplus.com/forum/general/19489/

At the heart of all this is the concept of streams:
http://en.wikipedia.org/wiki/Standard_streams