Help saving additional data to file?

[gator6688]

I need to be able to save my additional data to my .dat file. The additional data is not part of the vector though. It is data I made after the vector. I have to save the finalGrade and letter grade to my file.Also, how can I save my letter grade to my file when I didn't actually name it that?

#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>
#include <iomanip>
#include <cmath>
#include <vector>
#include <algorithm>
using namespace std;
 
class Grade
{
private:
    string name;
    double examOne, examTwo, homework, finalExam, finalGrade;
 
 
public:
    Grade(){setGrade("Tom", 94, 92, 87 ,85);};
    Grade(string nm, double exOne, double exTwo, double hw, double final){setGrade(nm, exOne, exTwo, hw, final);};
    void setGrade(string nm, double exOne, double exTwo, double hw, double final){name=nm; examOne=exOne; examTwo=exTwo; homework=hw; finalExam=final;};
    string getName(){return name;};
    double getExamOne(){return examOne;};
    double getExamTwo(){return examTwo;};
    double getHomework(){return homework;};
    double getFinalExam(){return finalExam;};
    double getFinalGrade(){return finalGrade;};
};
 
int _tmain(int argc, _TCHAR* argv[])
{
    const int Grades = 2;
    string filename = "grades.dat";
    string name;
    ofstream outFile;
    int i; 
    double finalGrade, examOne, examTwo, homework, finalExam;;
    Grade g;
 
    vector<Grade> gTable;
 
    outFile.open(filename.c_str());
 
 
    for(i=0; i<Grades; i++)
    {
        cout <<"\nEnter students name, 1st exam grade, 2nd exam grade, homework average,"
             <<  "and final exam grade (type done to exit): \n";
        cin >>name>>examOne>>examTwo>>homework>>finalExam;
        if(name=="done")
            break;
 
        g=Grade(name, examOne, examTwo, homework, finalExam);
        gTable.push_back(g);
 
 
    }
 
 
 
    cout << fixed << setprecision(2) << endl;
    cout << "Student    Exam 1     Exam 2     Homework     Final Exam     Final     Letter"<<endl;
    cout << "Name       Grade      Grade      Average      Grade          Grade     Grade"<<endl;
    cout << "-------    ------     ------     --------     ----------     -----     -----"<<endl;
 
 
for ( i = 0; i < Grades; i++ ) {
  double finalGrade =
      0.20 * gTable[i].getExamOne()
    + 0.20 * gTable[i].getExamTwo()
    + 0.35 * gTable[i].getHomework()
    + 0.25 * gTable[i].getFinalExam();
 
  cout<< setw(7) << gTable[i].getName()
      << setw(10) << gTable[i].getExamOne()
      << setw(11) << gTable[i].getExamTwo()
      << setw(13) << gTable[i].getHomework()
      << setw(15) << gTable[i].getFinalExam()
      << setw(10) << finalGrade;
 
  if ( finalGrade > 90 )
    cout<< setw( 11 ) <<"A";   
  else if ( finalGrade > 80 )
    cout<< setw( 11 ) <<"B";   
  else if ( finalGrade > 70 )
    cout<< setw( 11 ) <<"C";    
  else if ( finalGrade > 59 )
    cout<< setw( 11 ) <<"D";   
  else
    cout<< setw( 11 ) <<"F"; 
 
 outFile<<gTable[i].getName()<<" "
                <<gTable[i].getExamOne()<<" "
                <<gTable[i].getExamTwo()<<" "
                <<gTable[i].getHomework()<<" "
                <<gTable[i].getFinalExam()<<" "
                <<gTable[i].getFinalGrade()<<endl;
  cout<<'\n'<<endl;
}
 
 
 
 
 
    outFile.close();
    cout << "The file " << filename
         << " has been successfully written." << endl;
 
    cin.ignore();cin.ignore();
 
    return 0;
}

[sicarie]

I need to be able to save my additional data to my .dat file. The additional data is not part of the vector though. It is data I made after the vector. I have to save the finalGrade and letter grade to my file.Also, how can I save my letter grade to my file when I didn't actually name it that?

I'm a little confused by what you mean "you didn't actually name it that". Can you not use the name you named it as?

outFile.open(filename.c_str());
 

You are trying to open the file for reading and writing, am I correct? It looks like you do not specify that in the open() function, using ios::in | ios::out after the filename.