thank you, I can solve the problem.
an other problem:
I have the following classes: woman, man
Date of marriage is dataProperty woman
john is an instance of human
pretty is an instance of woman
emna is an instance of woman
john marie pretty in 1998
john marie emna in 1990
how I can add this information?
my code:
OntModel m=
ModelFactory.createOntologyModel(OntModelSpec.OWL_DL_MEM_RULE_INF);
String ns ="http://www.w3.org/2002/07/owl#";;
String base="http://www.w3.org/2002/07/owl";;
//create class
OntClass f = m.createClass(ns+ "femme" );
OntClass h = m.createClass(ns+ "homme" );
// create individual
Individual h1 = m.createIndividual( ns+"john", h );//ns
Individual f1 = m.createIndividual( ns + "pretty", f );
Individual f2 = m.createIndividual( ns + "emna", f );
//create ObjectProperty
ObjectProperty ma = m.createObjectProperty(ns + "marier" );
ma.addDomain(h);ma.addRange(f);
//create DataProperty
DatatypeProperty datemariage =
m.createDatatypeProperty(ns+"marriagedate");
datemariage.addDomain(h);
//add they information: john marie pretty in 1998 and
//john marie emna in 1990
h1.addProperty(ma,f1);
h1.addProperty(datemariage,"1990");
FileOutputStream writer =new
FileOutputStream("G:\\thése\\Rech12\\ENCD\\pizza\\context.owl");
m.write(writer, "RDF/XML");
please help me
