Générer document ireport apartir de netbeans

try {
           
            // TODO add your handling code here:
         

           InputStream url=getClass().getResourceAsStream("/report/newReport.jrxml");
           JasperDesign hj = JRXmlLoader.load(url);
           JasperReport jasperReport = JasperCompileManager.compileReport(hj);
                 
            JasperPrint print = JasperFillManager.fillReport(jasperReport,null);
            JasperViewer.viewReport(print,false);
          
           
// - Création du rapport au format PDF

//JasperExportManager.exportReportToPdfFile(print,"C:\\classic.pdf"); 
            
            
        } catch (JRException ex) {
            Logger.getLogger(Interface.class.getName()).log(Level.SEVERE, null, ex);
        }