- To print sum of rows|columns|diagonals of an N x N magic matrix
User Input: 3
Output: 15
import java.util.Scanner;
public class SumOfMagicMatrix {
public static void main(String []args) {
int n;
Scanner userInput = new Scanner(System.in);
System.out.print("Enter N of N X N magic matrix(must be odd number) :");
n = userInput.nextInt();
System.out.print("Sum of rows|columns|diagonals of "+n+" x "+n+" magic matrix : ");
System.out.print((n*(n*n+1))/2);
}
}
Enter N of N X N magic matrix(must be odd number) : 5 Sum of rows|columns|diagonals of 5 x 5 magic matrix : 65Program
Remember : Magic matrix are always odd value matrix
like : 3x3,5x5,7x7,.....
So, you must first check it for an Odd value
(n*(n*n+1))/2 //Formula to calculate the sum
To check for odd value
n%2!=0
Concept
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