How to detect if all buttons have been clicked

I have a little problem, I was able to create about 10 JButtons in a circle using this code below, I set an actionListener on each of them, and I want to find a piece of code I could use to detect if all the buttons have been clicked, then some action is performed... below is my piece of code!

    int n = 10;
    List <Point> points = new ArrayList<Point> ();

    public Beginner() {

              int radius = 200;
              Point center = new Point (250, 250);

              double angle = Math.toRadians(360 / n);

              points.add(center);

              for (int i = 0; i < n; i++) {
                  double theta = i * angle;

                  int dx = (int) (radius * Math.sin(theta));

                  int dy = (int) (radius * Math.cos(theta));

                  Point p = new Point (center.x + dx , center.y + dy);

                  points.add(p);

              }

              draw (points);
              }

               public void draw (List<Point> points) {

                   JPanel panels = new JPanel();

                   SpringLayout spring = new SpringLayout();

                   int count = 1;
                   for (Point point: points) {

                       quest = new JButton("Question " + count);
                       quest.setForeground(Color.BLACK);
                        Font fonte = new Font("Script MT Bold", Font.PLAIN, 20);
                        quest.setFont(fonte);

                       add (quest);
                       count++;

                       spring.putConstraint(SpringLayout.WEST, quest, point.x, SpringLayout.WEST, panels );

                       spring.putConstraint(SpringLayout.NORTH, quest, point.y, SpringLayout.NORTH, panels );

                       setLayout(spring);

                       panels.setOpaque(false);
                       panels.setVisible(true);
                       panels.setLocation(5,5);

                       add(panels);

                        quest.addActionListener(new java.awt.event.ActionListener(){
                            @Override
                            public void actionPerformed (ActionEvent p) {   

                if (point.equals(points.get(0)) {
                       //some action
                 }

                  else if (point.equals(points.get(1)) {
                 //some action
                    }
 here is the problem.... I want to use a code to detect when all actionListeners have been carried out!... Thanks for the help!
                        }

}); }