Unique Bytes from a String
<p>I want to get bytes from a string value( for Encryption/Decryption purposes ), 
I have used getBytes() method for that purpose, but every time i call getBytes() method, 
it returns a new bytes of array each time. 
I want a unique bytes of array for a particular string. 
How ? Also i want to store that information (string or byte) in a file, and i want to get back this information in form of bytes.</p>
