BCA JAVA 2015 SLIP 19

import java.io.*;

class NumberZero extends Exception

{

      NumberZero()

      {}

}

class Number

{

      static int no;

      Number() throws IOException

      {

            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

            System.out.println("Enter no");

            no=Integer.parseInt(br.readLine());

            try

            {     if(no==0)

                  {

                  throw new NumberZero();

                  }

            cal();

            }//end of try

            catch(NumberZero e)

            {

                  System.out.println("no is zero");

            }

      }

      void cal() 

      {     int l=0,r=0;

            l = no%10;

            //System.out.println("no = "+no);

            if(no>9)

            {

                  while(no>0)

                  {

                  r = no%10;

                  no=no/10;

                  }

            System.out.println("Addotion of first and last digit = "+(l+r));

                 

            }

            else

            System.out.println("Addotion of first and last digit = "+l);

      }

}

class Slip19

{

      public static void main(String a[]) throws IOException

      {     Number n= new Number();

      }

}