JAVA PROGRAM TO TAKE FILE NAME FROM USER AND PRINT TOTAL BYTE OF FILE....

//wap to take a file name from user and print total bytes of file

PROGRAM CODE---

import java.util.*;

import java.io.*;

class TakeFile

{

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

        {

           Console c = System.console();

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

            String s = c.readLine();

           InputStream i;

           int total=0;

        int l = s.length();

      

  if(l == 0) 

          {

             i = System.in;

          }

        else

          {

             i = new FileInputStream(s);

                 while((i.read())!=-1)

        {

            total++;

        }

     }

System.out.println("size of given file is"+ total);

}

}

 OUTPUT OF ABOVE PROGRAM---