BCA JAVA 2015 SLIP 11

import java.io.*;

class Reverse_File

{

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

      {

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

            System.out.println("Ente file name");

            String fname=br.readLine();

            FileInputStream fin = new FileInputStream(fname);

            BufferedInputStream bis = new BufferedInputStream(fin);

            int s = bis.available();

            System.out.println(s);

            for(int i=s-1;i>=0;i--)

            {     bis.mark(i);

                  bis.skip(i);

                  System.out.print((char)bis.read());

                  bis.reset();

            }

            fin.close();

      }

}