Syntax on XML parser?

Hi All,
B 
What is the syntax to reference Saxon (9.1) parser when reading XML
document? 
Below is an example when using Xerces parser:
cB B B  SAXBuilder
builder = new SAXBuilder("org.apache.xerces.parsers.SAXParser", 
false);
B 
Also like to find out what is the default parser used by JAXP such as the
following:
B 
B B B  SAXBuilder builder = new SAXBuilder(false);
B 
Thanks,
Jack