10. Special Numbers

import java.util.Scanner;

class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = Integer.parseInt(scanner.nextLine());

        for (int i = 1; i <= n; i++) {
            int sum = 0,
                number = i;
            for (int j = 0; j < Integer.toString(i).length(); j++) {
                sum += number % 10;
                number /= 10;
            }

            if (sum == 5 || sum == 7 || sum == 11) {
                System.out.printf("%d -> True\n", i);
            } else {
                System.out.printf("%d -> False\n", i);
            }
        }
    }
}

OR:

import java.util.Scanner;

class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = Integer.parseInt(scanner.nextLine()),
            number, sum;

        for (int i = 1; i <= n; i++) {
            sum = 0;
            number = i;
            while (number > 0) {
                sum += number % 10;
                number /= 10;
            }
            System.out.printf("%d -> %s\n", i, (sum == 5 || sum == 7 || sum == 11) ? "True" : "False");
        }
    }
}