A program to reverse a given number.

class ReverseANumber{

      public static void main(String args[]){

          int num = Integer.parseInt(args[0]);               

          int remainder, result=0;

          while(num>0){

              remainder = num%10;

              result = result * 10 + remainder;

              num = num/10;

         }

         System.out.println("Reverse number is : "+result);

    }

}