Matematické Fórum

 public static void main(String[] args) {
        System.out.println("Zadejte velikost pole:");
        Scanner sc = new Scanner(System.in);
       
        int n = sc.nextInt();
        int[][] pole = new int[n][n];
        for (int i = 0; i < pole.length; i++) {
            for (int j = 0; j < pole[i].length; j++) {
                pole[i][j] = i;
            }
        }
        vypis2D(pole);
    }

    private static void vypis2D(int[][] pole) {
        System.out.println("---Vysledky---");
        for (int i = 0; i < pole.length; i++) {
            System.out.print("(" + padLeft(Integer.toString(i * pole[i].length), 4) + "): ");
            for (int j = 0; j < pole[i].length; j++) {
                System.out.format("%3s", pole[i][j]);
                
            }
            System.out.println();
        }
    }

     private static String padLeft(String s, int n) {
    return String.format("%1$" + n + "s", s);
  }}