various types of parsers which are commonly used to parse XML documents.Dom Parser - Parses the document by loading the complete contents of the document and creating its complete hiearchical tree in memory.SAX Parser - Parses the document on event based triggers. Does not load the complete document into the memory.JDOM Parser - Parses the document in similar fashion to DOM parser but in more easier way.StAX Parser - Parses the document in similar fashion to SAX parser but in more efficient way.XPath Parser - Parses the XML based on expression and is used extensively in conjuction with XSLT.DOM4J Parser - A java library to parse XML, XPath and XSLT using Java Collections Framework , provides support for DOM, SAX and JAXP.

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