IsMagicSquare

public class MagicSquare {

    public static void main(String[] args) {
        // TODO Auto-generated method stub\
        int[][] matrix = {{2,7,6},{9,5,1}, {4, 3, 8} };
        boolean finale = isMagicSquare(matrix);
        if(finale == true){
            System.out.println("It is a Magic Square");
        }
            else {System.out.println("It is NOT a Magic Square");
        }

    }//end main

    public static boolean isMagicSquare(int[][] a) {
        boolean result1 = false, result2 = false;
        int[] sumRows = new int[a.length];
        int[] sumCols = new int[a.length];
        int sumDiag1 = 0, sumDiag2 = 0;
        //initialize sumRows and sumCols arrays with 0's
        for(int r=0; r < a.length; r++) {
            sumRows[r] = 0;
            sumCols[r] = 0;
        }//end for

        for(int r=0; r < a.length; r++) {
            for(int c=0; c < a.length; c++) {
                sumRows[r] += a[r][c];
                sumCols[c] += a[r][c];
                if(r == c){
                    sumDiag1 += a[r][c];
                }//end if
            }//end for c
        }//end for r
        //loops for calculating sumDiag2
        for(int c=a.length-1; c >= 0; c--){
            for(int r=0; r < a.length; r++){
                if((r+c) == a.length-1) {
                    sumDiag2 += a[c][r];
                }//end if
            }//end r
        }//end c
        if (sumDiag1 == sumDiag2) { result1 = true; }

        //Check if the sum of rows and columns are equal
        for(int r=0; r < a.length; r++) {
            if(sumRows[r] != sumCols[r]) {
                result2 = false;
            }//end if
            else {
                result2 = true;
            }
        }//end for

        //then if all the results are true, it is a magic square
        if(result1 && result2){
            return true;
        }
        else { //it is not a magic square
            return false;
        }

    }//end isMagicSquare()

}//end class