sum of digits in eazy way

import java.util.*;

public class sumofdegits {

public static void main(String[] args)  {
	int d;
	Scanner sc=new Scanner(System.in);  
	System.out.print("Enter a number: ");  
	int sum = 0;
	d =sc.nextInt();  
	while(d != 0){
		sum  = sum + d % 10;
	}
	d = d / 10;
    sc.close();
	System.out.println("Sum of digits: " + sum);  
    }

}