How to find sum of digits in an integer value

import java.util.Scanner;

public class Sumofdgts {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		@SuppressWarnings("resource")
		Scanner inpInt= new Scanner(System.in);
		
		//Input an Integer
		System.out.println("Enter an Integer=");
		int numValue=inpInt.nextInt();
		System.out.println("The integer is="+numValue);
		
		//Find out the Length
		int rem=0, sumDigits=0, numBackUp= numValue;
		while (numValue!=0) {
			rem=numValue%10;
			sumDigits=sumDigits+rem;
			numValue=numValue/10;
		}
		System.out.println("The sum of digits in a given Integer "+numBackUp+" is="+sumDigits);	
	}
}