Question

Help pls! and kindly explain how you do this as well. Thaank you

Write a program to test whether a square is a 3x3 magic square. A magic square is a grid with 3 rows and 3 columns, like the figure below. A magic square has the following properties:

the grid contains only the numbers 1 through 9

the sum of each row, each column, and each diagonal all add up to the same number

Notes:

I have provided the start to the program, which creates and displays the square.

public class MagicSquare {

   public static void main(String[] args) {
       int[][] magicSquare = { {4,9,2}, {3,5,7}, {8,1,6} };
       printSquare(magicSquare);
       System.out.println("Magic Square? " + isMagic(magicSquare));
   }

   public static boolean isMagic(int[][] square) {
       // YOUR CODE HERE
       return false;
   }
  
   public static void printSquare(int[][] square) {
       for(int rows=0; rows<square.length; rows++) {
           for(int cols=0; cols<square[rows].length; cols++) {
               System.out.print(square[rows][cols] + " ");
           }
           System.out.println();
       }
   }
}

You will complete the missing method: isMagic.

You should try different test values to make sure your program works properly.

Your program only has to work for 3x3 squares. It does not need to work more generally for other-sized magic squares.

If you are going to hard-code in positions to take advantage of this, for full credit, use constants instead of numbers to improve readability.

For example, square[1][2] isn't as clear as square[MIDDLE_ROW][RIGHT_COL].