Read students details, calculate the grades of students and export those results to the external text document.

#include <iostream>
#include <string>
#include <fstream>
#include <conio.h>
using namespace std;

class student
{

public:
    student()
    {
	Name = "";
	ID = 0;
	Mid1 = 0;
	Mid2 = 0;
	Final = 0;
	HWs = 0;
	Total = 0;
	Grade = 'F';

	fout.open("StudentsInfo.txt", ios::app);
    }

    string getName()
    {
	return Name;
    }

    bool setStud(string name, long int id, int m1, int m2, int f, int h)
    {
	Name = name;
	ID = id;

	if((m1 >= 0) && (m2 <= 100))
	    Mid1 = m1;
	else
	    return false;

	if((m2 >= 0) && (m2 <= 100))
	    Mid2 = m2;
	else
	    return false;

	if((f >= 0) && (f <= 100))
	    Final = f;
	else
	    return false;

	if((h >= 0) && (h <= 100))
	    HWs = h;
	else
	    return false;

	Total = (0.25 * m1) + (0.25 * m2) + (0.40 * f) + (0.10 * h);

	if(Total >= 90)
	    Grade = 'A';
	else if(Total >= 80)
	    Grade = 'B';
	else if(Total >= 70)
	    Grade = 'C';
	else if(Total >= 60)
	    Grade = 'D';

	return true;
    }

    void PrintStud()
    {

	cout << "Student name: " << Name << "\tID: " << ID << endl << "Mid 1: " << Mid1 << "\tMid 2: " << Mid2 << endl
	     << "HWs  : " << HWs << "\tfinal: " << Final << endl << "Total: " << Total << "\tGrade: " << Grade
	     << "\n\n";

	fout << "Student name: " << Name << "\tID: " << ID << endl << "Mid 1: " << Mid1 << "\tMid 2: " << Mid2 << endl
	     << "HWs  : " << HWs << "\tfinal: " << Final << endl << "Total: " << Total << "\tGrade: " << Grade
	     << "\n\n";
    }

private:
    string Name;
    long int ID;
    int Mid1, Mid2, Final, HWs;
    float Total;
    char Grade;
    ofstream fout;
};

int main()
{

    bool check;

    student s[15];

    check = s[0].setStud("Anath", 0001, 100, 90, 95, 80);

    if(check)
	s[0].PrintStud();
    else
	cout << "Error!\n\tThe information provided for student: " << s[0].getName() << " was incorrect\n\n";

    check = s[1].setStud("Balu", 0002, 99, 100, 0, 0);

    if(check)
	s[1].PrintStud();
    else
	cout << "Error!\n\tThe information provided for student: " << s[1].getName() << " was incorrect\n\n";
    getch();
}

 OUTPUT:

Student name: Anath     ID: 1
Mid 1: 100      Mid 2: 90
HWs  : 80       final: 95
Total: 93.5     Grade: A

Student name: Balu      ID: 2
Mid 1: 99       Mid 2: 100
HWs  : 0        final: 0
Total: 49.75    Grade: F