Question

How to create matrix of NxN in Java

Answer 1

public class MyClass {
    public static void main(String args[]) {
        int N = 4;
        int[][] matrix = new int[N][N]; 
        
        for (int i = 0; i < matrix.length; i++) {
            for (int j = 0; j < matrix[i].length; j++) {
                matrix[i][j] = i + j;
                System.out.print(matrix[i][j] + " ");
            }
            System.out.println();
        }
    }
}




/*
run:

0 1 2 3 
1 2 3 4 
2 3 4 5 
3 4 5 6 

*/

 

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