int mNR = 0;
    	int mNC = 0;

    	int rowSum[] = new int[4];
    	int columnSum[] = new int[4];

    	int diagOne = array[0][0] + array[1][1] + array[2][2] + array[3][3];
    	int diagTwo = array[0][3] + array[1][2] + array[2][1] + array[3][0];

    	//row sum
    	for(int i = 0; i < array.length; i++)
    	{
    		for(int j = 0; j < array[i].length; j++)
    		{
    			rowSum[i] += array[i][j];
    		}
    	}
    	mNR = rowSum[0];
    	//column sum
    	for(int i = 0; i < array.length; i++)
    	{
    		for(int j = 0; j < array[i].length; j++)
    		{
    			columnSum[j] += array[i][j];
    		}
    	}
    	mNC = columnSum[0];

    	if(mNR == mNC && mNR == diagOne && mNR == diagTwo && mNC == diagOne && mNC == diagTwo && diagOne == diagTwo)
    	{
    		return true;
    	}
    	else
    	{
    		return false;
    	}