Fascinating Number

/**
 * This program inputs a number and checks whether the number entered is a Fascinating Number or not.
 * For more information, please visit: https://goo.gl/oLrjqm
 */
import java.util.*;
public class Fascinating_Number
{
    static long getNumber(int num) //Function to multiply the number and join the resulting numbers.
    {
        String one = Integer.toString(num);
        String two = Integer.toString(num*2);
        String three = Integer.toString(num*3);
        String res = one + two + three;
        long result = Long.parseLong(res);
        return result;
    }

    static int getSum(long num) //Function to get the sum of a number.
    {
        String  a = Long.toString(num);
        int i, sum = 0;
        for(i=0;i<a.length();i++)
        {
            sum += Character.getNumericValue(a.charAt(i));
        }

        return sum;
    }

    static boolean checkSum(long num) //Function to check whether the sum of the combined number is equal to the sum of numbers from 1 - 9.
    {
        int tensum = getSum(1234567890); //Getting the sum of numbers from 1 - 9.
        int numsum = getSum(num); //Getting the sum of the combined number.

        if(tensum == numsum)
            return true;
        else
            return false;
    }

    static boolean checkDigits(long num) //Function to check whether the number has any repeated digits except for 0.
    {
        String a = Long.toString(num);
        char x;
        int i, flag = 1;
        for(i=0;i<a.length();i++)
        {
            x = a.charAt(i);
            if(a.indexOf(x) != a.lastIndexOf(x) && x != '0') //Checks numbers 1 - 9 and ignores zeros.
            {
                flag = 0;
                break;
            }
        }

        if(flag == 1)
            return true;
        else
            return false;
    }

    public static void main(String[] args)
    {
        Scanner sc = new Scanner(System.in);
        //Taking user input.
        System.out.println("Please enter a number.");
        int n = sc.nextInt();
        //Multiplying and joining the number.
        long num = getNumber(n);
        if(checkSum(num) && checkDigits(num)) //The two step verification makes the program fool-proof.
            System.out.println(n+" is a Fascinating Number.");
        else
            System.out.println(n+" is not a Fascinating Number.");

        sc.close();
    }
}