Square Matrix Program in Java

public class SquareMatrix {
    public static void main(String[] args) {
        int square[][]= {{1,3,5},{2,4,6}};
        System.out.println("Your Original Matrix: ");
        for(int i = 0; i < 2; i++){
            for(int j = 0; j < 3; j++){
                System.out.print(square[i][j] + " ");
            }
            System.out.println();
        }
        for(int i = 0; i <= 1; i++) {
            for(int j = 0; j <= 2; j++) {
                square[i][j] = square[i][j] * square[i][j];
            }
        }
        System.out.println("Matrix after changes: ");
        for(int i = 0; i < 2; i++){
            for(int j = 0; j < 3; j++){
                System.out.print(square[i][j] + " ");
            }
            System.out.println();
        }
    }
}