XML validation against W3C Schema - help

[shivakumar sekaran]

Hi All,
I need to validate an XML document against the relevent Schema. I couldn't find any source for doing it and I am new to this.
Can anybody show me some code which associates a local xml schema file with an xml document and it would be better if you would give all relevent documents including the target XML document, the schema file, the processing file which parses and validates the target xml document. and I would appreciate , if some one could suggest me a site which gives more details on this please... Its quite urgent..
Thanx a lot for your help
cheers
shivakumar

[shivakumar sekaran]

Hi,
I forgot to tell that I am using SAX parser and JAXP to parse my XML files.. So I would prefer to have the example code to be based on SAX & JAXP..
many thanks
shiva