public class WordComparePageController implements Initializable {

WordNetMeasures wordNetMeasures = new WordNetMeasures();

@Override
public void initialize(URL url, ResourceBundle rb) {
  }

@FXML
private void onSearchButtonClicked(ActionEvent event) throws InstantiationException, IllegalAccessException {

progressBar.progressProperty().bind(taskPS.progressProperty());
 progressIndicator.progressProperty().bind(taskPS.progressProperty());
    Thread th = new Thread(taskPS);
    th.setDaemon(true);
    th.start();
}

Task<Void> taskPS = new Task<Void>() {
    @Override
    public Void call() throws InstantiationException, IllegalAccessException {

distance = wordNetMeasures.searchForWord(wordOneText.getText(), wordTwoText.getText());

        updateProgress(0,20);

linDistance = wordNetMeasures.linMethod(wordOneText.getText(), wordTwoText.getText());

        updateProgress(20,40);

leskDistance = wordNetMeasures.leskMethod(wordOneText.getText(), wordTwoText.getText());

        updateProgress(40,60);
        ProjectProperties.getInstance().setWordText(wordOneText.getText() + "," + wordTwoText.getText());

        String wordNetDistance = String.valueOf(df.format(distance));
        ProjectProperties.getInstance().setPathWordNetText(wordNetDistance);
        ProjectProperties.getInstance().setLinWordNetText((String.valueOf(df.format(linDistance))));

        ProjectProperties.getInstance().setLinResult(linDistance);
        ProjectProperties.getInstance().setPathResult(distance);
        ProjectProperties.getInstance().setLeskResult(leskDistance);
        ProjectProperties.getInstance().setLeskWordNetText((String.valueOf(df.format(leskDistance))));

        updateProgress(60, 80);

        Database databaseConnection = new Database();
        try {
            databaseConnection.getConnection();
            databaseConnection.addWordNetToDatabase(ProjectProperties.getInstance().getWordText(),
                    distance, linDistance, leskDistance);
            updateProgress(80, 100);
        } catch (SQLException ex) {
             Logger.getLogger(WordComparePageController.class.getName()).log(Level.SEVER E, null, ex);
        }
        return null;
    }
};`enter code here`