Some points to be remember :
<?xml version='1.0' encoding='UTF-8'?>
*)XML provides the XML declaration for us to label documents as being XML.
*)The XML declaration starts with the characters <?xml, and ends with the characters ?>.
*)If you include it, you must include the version, but the encoding and standalone attributes are optional.
*)Unicode is a character code is used for internationalization.
*)Two major character encodings for Unicode: UTF-16 and UTF-8.
*)UTF-8 uses one byte for the characters covered by 7-bit ASCII
*)For text written in English, where most of the characters would fit into the ASCII character encoding.
*)UTF-8 can result in smaller file sizes, but for text in other languages, UTF-16 should usually be smaller.
For directory structure to visit ........http://www.roseindia.net/struts/struts2/index.shtml