XML Validation
XML is stand for EXtensible Markup Language and it is easy to use XML as a markup language. XML haven’t got any predefined tags as HTML. Therefor when we are using a XML content, we have to use a mechanism to read those tags and identify those tags separately. For this mechanism there are XML parsers. Specially we can use SAX parser and DOM parser. In most web browsers they have an inbuilt XML parser....