Read data from file to 2D array

[likeToRead]

Hello everyone, I am having trouble with an assignment where I have to read in letter grades from a file and then display them on screen.
My thought process was to use two for loops in order to cycle through the file and then display it but all I am getting so far is this: ╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠╠

All the text file has is this:
A
A
B
C
C
F
C
D
B
B
A
C
B
A
B

I would really appreciate it if anyone can give me a hint about what I'm doing wrong. Thank you for your time.

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

int main()
{
	ifstream inputFile;
	const int ROW = 4;
	const int COL = 4;
	char student[ROW][COL];

	inputFile.open("grades.txt");

	if (inputFile)
	{
		for (int i = 0; i < ROW; i++)
		{
			for (int j = 0; j < COL; j++)
				cout << student[i][j];
		}
		cout << endl;
	}
	else
	{
		cout << "Error opening the file.\n";
	}

	inputFile.close();

	return 0;
}

[jlb]

I would really appreciate it if anyone can give me a hint about what I'm doing wrong.

Where are you attempting to actually read the file contents?

[likeToRead]

Hi, I modified it so that it looks like this now:

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

int main()
{
	ifstream inputFile;
	const int ROW = 4;
	const int COL = 4;
	char student[ROW][COL];

	inputFile.open("grades.txt");

	if (inputFile)
	{
		inputFile >> student[ROW][COL];

		for (int i = 0; i < ROW; i++)
		{
			for (int j = 0; j < COL; j++)
				cout << student[ROW][COL] << endl;
		}
		cout << endl;
	}
	else
	{
		cout << "Error opening the file.\n";
	}

	inputFile.close();

	return 0;
}

But now it is just outputting 1's.
I'm really sorry if this is a dumb question but this is the first time I'm working with 2D arrays.

[jlb]

You may want to review your documentation on arrays. And it might be easier if you start with a statically allocated and populated array, to get your print function working correctly.

Something like:

int main()
{
    int array[3][4] = { {1,2,3,4}, {5,6,7,8}, {9,10,11,12}};

    // Now print out the above array to the console (cout).

...

A tutorial on arrays: http://www.cplusplus.com/doc/tutorial/arrays/

By the way the code in the OP is closer than your "new" code.

[ufrnkiddo]

If I've understood you correctly, this is easier than you think. You can replace 15 by the number of grades you want (that is, the number of grades in your grades file).

#include <iostream>
#include <fstream>

using namespace std;

int main ()
{
	ifstream in ("grades.txt");
	char grade;

	for (int i=0;i<15;i++) 
	{
		in >> grade; // grade equals each one of the grades, but only one at a time.
		cout << grade << endl; // this line displays each grade
	}
}

[likeToRead]

Thank you both for your help :)