[hardwired]

You want to devise a way for the app, here JPF1, to message the CQ class that it is time to stop asking questions and give the results. So you can add a method to the CQ class which the JPF1 class can call by using its reference to its instance of CQ, viz, "cq". Then you want to devise a way to do this (make the change from questions to results) in CQ. As a pseudo code suggestion you might try something like this to get started:

Code:

class GQ extends JFrame implements ActionListener {
    ...
    public void actionPerformed(ActionEvent e) {
        ...
        } else if (ac.equals("b4")) {
            System.exit(0); 
        }
         askQuestions(questions, answers);
    }

    public void stopAndShowResults() {
        timeForMore = false;
    }

    ...

    private void askQuestions(String[] questions, String[] answers) {
        ...
        for(int j = 0; j < questions.length; j++) {
            if(!timeForMore)
                break;
            String input = JOptionPane.showInputDialog(null, questions[j]);
            if(answers[j].equals(input)) { 
                count++;
                point++;
            }   
        }
        ...

using the classes/code in reply 2.