Unresponsive swing worker

Question

I am having a hard time to use the Swing worker to work with my project. It has two programs, one is the logic (full program) and the other is GUI. I am calling the logic program from the GUI. And because of its unresponsiveness, I tried using Swing worker. But even if I use Swing worker, its still unresponsive. If I run the program, it displays the GUI, but if I click on start, the another program starts and it becomes unresponsive.

This the snippet of GUI program (full program):

    btnNewButton.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent arg0) {
            state.setText("Listening");
            System.out.println("Started Listening");
            state.setBackground(new Color(51, 204, 0));
            doRun(args);
        }
    });

public void doRun(String[] args) {

    SwingWorker<Void, String> worker = new SwingWorker<Void, String>(){

        @Override
        protected Void doInBackground() throws Exception {
            // Object to use from another program 
            HelloWorld obj = new HelloWorld();
            obj.main(args);
            return null;
        }};
        worker.execute();
}

Answer 1

Because it requires interaction, it may be inconvenient to run HelloWorld#main() in the background. As suggested here, instantiate a LiveSpeechRecognizer directly in your SwingWorker and publish() interim results for display in the GUI. You can specify Configuration information in the SwingWorker constructor or pass it as a parameter. In outline based on examples here and here,

private class BackgroundTask extends SwingWorker<Void, String> {

    LiveSpeechRecognizer recognizer;

    public BackgroundTask() {
        statusLabel.setText((this.getState()).toString());
        Configuration configuration = new Configuration();
        configuration.setAcousticModelPath("resource:/edu/cmu/sphinx/models/en-us/en-us");
        configuration.setDictionaryPath("resource:/edu/cmu/sphinx/models/en-us/cmudict-en-us.dict");
        configuration.setLanguageModelPath("resource:/edu/cmu/sphinx/models/en-us/en-us.lm.dmp");
        recognizer = new LiveSpeechRecognizer(configuration);
        recognizer.startRecognition(true);
    }

    @Override
    protected Integer doInBackground() {
        while (!isCancelled()) {
            SpeechResult result = recognizer.getResult();
            List<WordResult> list = result. getWords();
            for (WordResult w : list) {
                // get information to publish, e.g. getPronunciation()
                // publish(getSpelling());
            }
        }
    }

    @Override
    protected void process(java.util.List<String> messages) {
        statusLabel.setText((this.getState()).toString());
        for (String message : messages) {
            textArea.append(message + "\n");
        }
    }

    @Override
    protected void done() {
        recognizer.stopRecognition();
        statusLabel.setText((this.getState()).toString() + " " + status);
        stopButton.setEnabled(false);
        startButton.setEnabled(true);
        bar.setIndeterminate(false);
    }

}