FIND SUM OF ALL DIGITS IN THE INTEGER NUMBERS

import java.util.*;
class dsum
public static void main(string args[])
{
int n,d,sum;
scanner os=new scanner (system.in);
system.out.println("enter n value");
n=os.next int();
d sum=0;
do
{
d=n%10;
dsum=dsum+d;
n=n/10;
}
while(n!=0)
system.out.println("digits sum :" +dsum);
}
}