Reverse of number

 Here  is  simple  java example  to  reverse  the number .  This  example  is asked  in interview
 many time  for junior level developers . So  go through this code  for  your interview preparation.

class Revrsenumber

 {

public static void main(String args[])

  {

 int n=Integer.parseInt(args[0]); 

 System.out.println("entered num is: "+n); 

 int r,sum=0,rev=0;

  while(n>0) {

   r=n%10; n=n/10; 

   

   rev=(rev*10)+r; 

   

   sum+=r;

}

System.out.println("sum of digits is: "+sum); 

System.out.println("reverse of the num is: "+rev);

} 

}

 When you run this code with run configuration  arguments . Output will like 

 this  a input number 

entered num is: 45678

sum of digits is: 30

reverse of the num is: 87654