parser « jaxp « Java XML Q&A

1. How does a sax parser validate against a dtd?    stackoverflow.com

I have a xml file and a dtd defined. My understanding of a sax parser is it processes events instead of storing the entire xml document (like DOM) in memory. Say, ...

2. XML parser Jar confusion    stackoverflow.com

I need to know which jar contains the following class com.ibm.xml.jaxp.datatype.XMLGregorianCalendar kindly help me

3. advantage of jaxp over dom and sax parser    java-forums.org

4. About JAXP and Parsers    forums.oracle.com

Hi All, I am very new to java and XML, your help is appriciated... My doubt is What is JAXP? is it a specification? or a parser? What is Xerces and relation between JAXP and other Parsers... Can I use JAXP API without using any parser jars(xerces etc) for parsing the XML.