public class SelfNumbers
{
public static void main (String args[]) throws Exception
{
int i = 1;
int sum=0,recu,result=0,i_first;
while(result<10)
{
i_first = i; 
sum=0;
do
{
recu = i%10;
i= i/10;
sum+=recu;

}
while(i!=0);
result=sum+i_first;
if(result<=10) 
System.out.println(result );
i=result;
}
}
}

i use java..and also feel puzzle..
i wanna start from 1 ,but it start form 2..