main code help?

[beedog1221]

i've filled in all the parameters the right way i think. but now i have to do some work in the main code area. i wanted to start off by just seeing if the arrays filled correctly. but when i type in an array, it tells me i need to declare it again. i shouldnt have to do this if its in the class right?

#include <iostream>
using namespace std;
enum {size = 10};

class Matrix
{
public:
	void Initialize(int i, int j);
	int GetRow;
	int GetCol;
	void Add();
	void Subtract();
	void Print();
	void Copy();
	void MakeEmpty();
	void StoreValue(int, int, int);
	const Matrix(int, int);
	void Fill();
private:
	int n, row, col;
	int data[size][size];
};

Matrix::Matrix(int row, int col)
{
	int i;
	int j;
	
	i = row;
	j = col;
}

void Matrix::StoreValue(int i, int j, int value)
{
	
	cout << "enter value" << endl;
	cin >> value;
	data[i][j] = value;
};

void Matrix::MakeEmpty() 
{
	for (int i = 0; i < size; i++) {
		for (int j = 0; j < size; j++) {
			data[i][j] = 0;
			
		}
	}
};

void Matrix::Add()
{
	int add;
	int i;
	int j;
	add = data[i][j] + data[i][j];
	cout << add << endl;
}

void Matrix::Subtract()
{
	int subtract;
	int i;
	int j;
	subtract = data[i][j] - data[i][j];
	cout << subtract << endl;
}

void Matrix::Print()
{
	for (int i = 0; i < size; i++) {
			for (int j = 0; j < size; j++) {
				cout << data[i][j] << endl;
				
			}
		}

}

void Matrix::Copy()
{
	int copy;
	int row;
	int col;
	int rowcopy;
	int colcopy;
	cout << "enter row: ";
	cin >> row;
	cout << "and column: ";
	cin >> col;
	cout << "of matrix you wish to copy" << endl;
	
	cout << "enter row: ";
	cin >> rowcopy;
	cout << "and column: ";
	cin >> colcopy;
	cout << "of matrix you wish to copy to" << endl;
	
	data[rowcopy][colcopy] = data[row][col];
	
}

void Matrix::Fill()
{
	int i, j, z = 0;
	
	        { 
	         for(int i = 0; i < size; i++)
	         {
	            for(int j = 0; j < size; j++)
	            {
	              data[i][j] = z;
	            }
	            z++;      
	         }
	}
	
}


int main()
{
	cout << data[1][2];
	return 0;
};

[wildblue]

There's no creation of a Matrix object in the main function, so it won't know what data is on line 123.

row and col are private data members of Matrix. I'm not sure I understand why you are setting i and j local variables here instead of setting the data members with the numbers input into the constructor?

Matrix::Matrix(int row, int col)
{
	int i;
	int j;
	
	i = row;
	j = col;
}

line 39, 49, 125 - you don't need the semicolons



Edit: Is the matrix supposed to be a fixed 10x10 size? The user can't create a matrix of a size of their own choosing?