Print sum of digits from 1 to n program in java

Print sum of digits from 1 to n program in java

The main aim of this program is print sum of digits, for example if we want calculate sum of digit 5 we can calculate like this way 1+2+3+4+5=15

Sum of 10 digit=1+2+3+4+5+6+7+8+9+10=65

import java.util.Scanner;

public class SumOfDigit {

    public static void main(String[] arg){

        Scanner sc=new Scanner(System.in);

        System.out.println("Enter a digit :");

        int num=sc.nextInt();

        int sum=0;

        for(int i=1;i<=num;i++){

            sum+=i;//(or) sum=sum+i;

        }

        System.out.println("sum of digits from 1 to "+num +" : "+sum);

    }

}