Adding all digit of an interger between 0 and 1000

 

import java.util.*;

public class AddAllDigit {

public static void main(String args[]) {

Scanner sc = new Scanner(System.in);

System.out.println("Enter the number");

int n = sc.nextInt();

int firstDigit = n % 10;

int secondDigit = remainingNo % 10;

remainingNo = remainingNo / 10;

int thirdDigit = remainingNo % 10;

remainingNo = remainingNo / 10;

int forthDigit = remainingNo % 10;

int sum = firstDigit + secondDigit + thirdDigit + forthDigit;

System.out.println("Sum of all digit of given number is " + sum);

}

}