Turn the bank details struct into a class code example

Example: Turn the bank details struct into a class

#include <iostream>
#include <fstream>
#include <string>
#include <iomanip>
#include <fstream>
using namespace std;

#define a_row 10
#define a_col 6

ifstream inputname, inputscore;

class studentRecord
{
private:
	string name[a_row];
	int grade[a_col];
	int sum;
	double average;
	char letter;
public:
	studentRecord();
	/*void readStudentData(string name, int grade);
	void printStudentData(string name, int grade);
	int sumOfGrade(int grade, int sum);
	double averageGrade(int sum, double average);
	void letterGrade(double average, char letter);
	void printStudentData2(string name, int grade, int sum, double average, char letter);*/
};

studentRecord::studentRecord()
{
	inputname.open("name.txt");
	inputscore.open("grade.txt");

	for (int r = 0; r < a_row; r++)
	{
		inputname >> name[a_row];
		for (int i = 0; i < a_col; i++)
		{
			inputscore >> grade[a_col];
		}
	}
	
}

//int studentRecord::sumOfGrade(int grade, int sum)
//{
//
//}

void main()
{
	studentRecord student;
	system("pause");
}