private void showInputDetails(InputConfigurationModel ipmodel) {

        if (ipmodel != null) {
            cmbfiletype.setValue(ipmodel.getFiletype().toString());
    }

public class InputConfigurationModel {

        public StringProperty filetype = new SimpleStringProperty();
        public InputConfigurationModel(String filetype) {

            this.filetype = new SimpleStringProperty(filetype);
        }

        public InputConfigurationModel() {
        }

        public String getFiletype() {
            return filetype.get();
        }

        public void setFiletype(String value) {
            filetype.set(value);
        }

        public StringProperty filetypeProperty()
        {
            return filetype;
        }

    //    @Override
    //    public String toString() {
    //        return filetype.toString(); //To change body of generated methods, choose Tools | Templates.
    //    }
    }

public void LoadFile() {

    try {

    String sql = "select * from EXTENSION";
    PreparedStatement ps = conn.prepareStatement(sql);
    rs = ps.executeQuery(sql);
    while (rs.next()) {
    ExtensionModel extModel = new ExtensionModel();
    filetypelstupdate_ip = FXCollections.observableArrayList(extModel);
    String ext_type = rs.getString("EXT_TYPE");
    String ext_name = rs.getString("EXT_NAME");
    int ext_id=Integer.parseInt(rs.getString("EXT_ID"));
    extModel.setExttype(ext_type);
    extModel.setExtname(ext_name);
    extModel.setExtid(ext_id);
    cmbfiletype.getItems().addAll(filetypelstupdate_ip);

        cmbfiletype.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<ExtensionModel>() {
        @Override
        public void changed(ObservableValue<? extends ExtensionModel> observable, ExtensionModel oldValue, ExtensionModel newValue) {
               aaa(newValue);

        }
    });

    catch (Exception ex) {
    ex.printStackTrace();
   }

}
        public void aaa(ExtensionModel exm){

         if(cmbfiletype!=null)
        {
            txtextid.setText(exm.getExtid().toString());
            System.out.println("txtextid"+txtextid);
        }

    }