CreateMatric

MatricFactory.cpp

#include <iostream>
#include <cstring>

class MatricFactory
{
public:
    int** createArray(int row, int col, int initial = 0)
    {
        int **arr = new int* [row];
        for (int i = 0; i < row; i++)
        {
            arr[i] = new int [col];
        }

        for (int i = 0; i < row; i++)
        {
            for (int j = 0; j < col; j++)
            {
                arr[i][j] = initial;
            }
        }

        return arr;
    }

    void showArray(int *arr[], int row, int col)
    {
        for (int i = 0; i < row; i++)
        {
            for (int j = 0; j < col; j++)
            {
                std::cout << arr[i][j] << " ";
            }
            std::cout << std::endl;
        }
    }

    void cleanMemory(int *arr[], int row)
    {
        for (int i = 0; i < row; i++)
            delete [] arr[i];
            delete [] arr;

    }
};

int main()
{
    int row, col, initial;

    std::cout << "Set row col size: ";
    std::cin >> row >> col;
    std::cout << "Set initial: ";
    std::cin >> initial;

    /* create instance of class Matric factory */
    MatricFactory matricFactory;
    int **matric = matricFactory.createArray(row, col, initial);

    matricFactory.showArray(matric, row, col);

    matricFactory.cleanMemory(matric, row);

    return 0;
}