File Handling Not Store Bytes Into File

when open file "rahul.txt"so it shows characters which i stored not byte code i want to stored in file byte code. Now i have a problem for file handling it is not store bytes into myfile. it stores character not bytes.

package com.fileh;
import java .io.*
public class Writedata {
public static void main(String args[])
{
try{
FileOutputStream fout= new FileOutputStream("rahul.txt");
String s="my name is rahul";
byte[] b =s.getBytes();
fout.write(b);
fout.close();

[code]....

and second problem is that when i use FileInputStream to read file rahul.txt so it did not read .