Sum of Digits

Java Program to find Sum of Digits of Number entered by user.

package whileLoops;

import java.util.Scanner;

public class SumOfDigits {

public static void main(String[] args) 

{

Scanner input=new Scanner(System.in);

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

int n=input.nextInt();

int temp=n;

    int sum=0;

while(temp>0)

{

int lastDigit=temp%10;//lastDigit=2

temp/=10;//temp=54

sum+=lastDigit;//sum=2

}

System.out.println("Sum of digits in "+n+" is "+sum);

}

}