I have updated the code and now it works. thanks for your support sir OntClass student = model.createClass(ns + "Student");
On Sat, Jul 9, 2016 at 4:48 AM, kumar rohit <[email protected]> wrote: > I am sorry sir, I have read this file so many times but I do not know why > things are going well for me still. > Let me read it again. > > On Sat, Jul 9, 2016 at 4:35 AM, Lorenz B. < > [email protected]> wrote: > >> The problem is that you still did not learn enough about RDF, OWL and >> SPARQL... >> >> If you create a resource with JENA, what do you think is it? An >> individual, a class, a property? JENA, and I'm talking here about the >> methods you used, creates RDF, not OWL. Protege on the other hand reads >> and works on OWL ontologies(ok, it also supports OBO, but that's another >> topic). Please read the tutorial [1] about JENA and OWL, then I think >> you will make it >> >> [1] https://jena.apache.org/documentation/ontology/ >> >> Kind regards, >> Lorenz >> >> > After executing this code, I can not find the resource (Ranjani) in my >> > Protege owl file. Where is the mistake in code? >> > >> > >> > >> > >> > public class rdffile { >> > public static void main(String[] args) throws IOException { >> > >> > String ns = " >> > http://www.semanticweb.org/ontologies/2016/7/my-ontology-54#Ranjani";; >> > >> > >> > >> > Model model=ModelFactory.createDefaultModel(); >> > InputStream in = FileManager.get().open("C:/User/Desktop/first.owl"); >> > if (in==null) { >> > throw new IllegalArgumentException( >> > "File: " + " not found "); >> > } >> > model.read(in, ""); >> > >> > >> > Resource ranjani = model.createResource(ns+"Ranjani"); >> > >> > String ss= "C:/Users/Desktop/first.owl"; >> > FileWriter out = new FileWriter( ss ); >> > >> > model.write(out, "RDF/XML-ABBREV"); >> > >> -- >> Lorenz Bühmann >> AKSW group, University of Leipzig >> Group: http://aksw.org - semantic web research center >> >> >
