Coversion from byte stream to character & character to byte stream.

Question

This is a test program.
import java.io.*;
class Test
     public static void main(String[] args)
          System.out.println("Hello World!");
          try
               BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(new File("C:/javafiles/testing/Picture.jpg"))));
               PrintWriter bw = new PrintWriter(new OutputStreamWriter(new FileOutputStream(new File("C:/javafiles/testing/Copy.jpg"))));
               String in = br.readLine();
               while (in != null)
                    bw.println(in);
                    in = br.readLine();
               br.close();
               bw.close();
          catch (Exception e)
               System.out.println("\n\n**********Exception Occured**************\n" + e);
**First of all I read jpg file convert it into character stream from byte stream.
**and copy it back and convert it back into byte steam from character stream.
**The file copied back is corrupted.(getting open but display has fully scattered.)
**That means data has been lost in conversion.
**is it due to the encoding, I havn't specified while writing, or it always happens when we convert from byte stream to character and vice versa.
**What encoding should I use while writing jpg files.
please comment.

Answer 1

**First of all I read jpg file convert it into
character stream from byte stream.
**and copy it back and convert it back into byte
steam from character stream.First of all this operation is meaningless. A JPEG file doesn't contain anything that can be converted to characters. Delete the 'conversions' and all will be well.
**What encoding should I use while writing jpg files.None. Don't use an encoding. Don't use Readers and Writers. Use InputStreams and OutputStreams only.