print

 private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
     try {
            Class.forName("org.postgresql.Driver");
            String url = "jdbc:postgresql://localhost:5432/dbtester";
            Connection cn = DriverManager.getConnection (url, "postgres", "");
            String SQL = "SELECT * from dbtestfinal where lower(nama) like '%"+ nama.getText().toLowerCase()+"%'"
                    + "and thntes like  '%" + tahunuji.getText() + "%'"
                    + "order by nama asc";
            Statement st = cn.createStatement();
            ResultSet rs = st.executeQuery(SQL);

            JasperPrint jasperPrint;
            JRResultSetDataSource jrRS = new JRResultSetDataSource (rs);
            JasperReport jasperReport = JasperCompileManager.compileReport(System.getProperties().getProperty("java.class.path").split(";")[System.getProperties().getProperty("java.class.path").split(";").length - 1] + "\\report1.jrxml");
            jasperPrint = JasperFillManager.fillReport(jasperReport, null, jrRS);
            JRViewer aViewer = new JRViewer(jasperPrint);
            JDialog viewer = new JDialog();
            viewer.setTitle(".: Jasper Report :.");
            viewer.setAlwaysOnTop(true);
            viewer.getContentPane().add(aViewer);
            Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
            viewer.setBounds(0,0,screenSize.width, screenSize.height);
            viewer.setVisible(true);
            st.close();
            cn.close();
          } catch(Exception e)
          {
               System.out.println(e);
          }
    }