api-long.java

    public static void main(String...args) {
        Model model = ModelFactory.createDefaultModel();
        Resource subject1 = ResourceFactory.createResource("http://example/s1");
        Resource subject2 = ResourceFactory.createResource("http://example/s2");
        Property property = ResourceFactory.createProperty("http://example/p");
        Long longValue = 6L;
        model.addLiteral(subject1, property, ResourceFactory.createTypedLiteral(longValue.toString(), XSDDatatype.XSDlong));
        model.addLiteral(subject2, property, longValue);
        RDFWriter.source(model).lang(Lang.TTL).output(System.out);
    }