Exercise 19 Page 46

import java.util.*;
public class numDigitSum
{

    public static int getSum(int num)
    {
        int sum=0;
        while(num!=0)
        {
            sum=sum+(num%10);
            num=num/10;
        }
        return sum;
    }
    public static void getSmaller(int num)
    {
        boolean check=false;
        int n1=num;
        int checkI;
        int sumOfNum = getSum(n1);
        for(int i=1;i<=n1;i++)
        {
            num--;
            checkI = getSum(num);
            if(checkI==sumOfNum)
            {
                check=true;
                System.out.println("num: "+num);
            }
        }
        if(!check)
            System.out.println("No Match");
    }
    public static void main(String[] args)
    {
        Scanner in =new Scanner(System.in);
        System.out.println("Enter a num");
        int num = in.nextInt();
        getSmaller(num);
    }

}