how to display chart in a Jpanel with Jframe

Question

So First, my chart generating code is:

class Cv implements ActionListener {
    public void actionPerformed(ActionEvent arg0) {


          while(true){ 
              try {
                  List<Date> PAdate = getPADate();
                  List<Integer> PAdata = getPAData();

                  int count =getRows();
                  final XYChart chart =   new XYChart(count,count);

                  final SwingWrapper sw = new SwingWrapper(chart);
                  XYSeries series =  chart.addSeries("PA",PAdate,PAdata);


                  chart.setHeight(500);
                  chart.setWidth(1500);

                  chart.setTitle("Courbes en temps réel des paramètres capturées");
                  chart.setXAxisTitle("Date");chart.setYAxisTitle("Paramètre");

                  sw.displayChart("Paramètre");
                  Thread.sleep(10000);
              } catch (SQLException | InterruptedException ex) {
                  Logger.getLogger(Cv.class.getName()).log(Level.SEVERE, null, ex);
              }

       }

        }}

this method belongs to the class which implements ActionListener, so i want to execute this class with pressing on the button in Jframe panel. I try with the flowing code but the chart is not appearing in the panel but the class is succesfuly executing:

public class SimpleRealTime extends JComponent{
    private JFrame  visualiser = new JFrame("Visualiser les paramètres");
    private JPanel  pane       = new JPanel();
    private JButton courbe     = new JButton("Courbe pression");
    private JButton quitter    = new JButton("Quitter");
    public SimpleRealTime() {
    visualiser.setSize(500,500);
    visualiser.setVisible(true);
    visualiser.add(pane);
    pane.add(courbe);
    pane.add(quitter);   
    courbe.addActionListener(new Cv());
    quitter.addActionListener(new Ferme());  
}

So can someone help me plz! and what can i write in the main method? thank you.

?? `while(true){` -- Swing GUI code should never have something like this within an ActionListener. Remember that the library is an ***event-driven*** GUI library, and so you want to respond to *events*, not continually poll. This sort of code will freeze your GUI. — Hovercraft Full Of Eels, Apr 24 '17 at 15:36
Same with `Thread.sleep(10000);`. Please read [Concurrency in Swing](https://docs.oracle.com/javase/tutorial/uiswing/concurrency/) to see why this is dangerous code. — Hovercraft Full Of Eels, Apr 24 '17 at 15:41
Without using the jframe, the swing chart is executed many time to show the insert data in reel time. that why i wrote the while loop. — Nour Yasmin, Apr 24 '17 at 15:43
Please read the link that I've given you to see why that code absolutely will not do what you're trying to get it to do. — Hovercraft Full Of Eels, Apr 24 '17 at 15:46
When you press your courbe JButton, does the application freeze? — Hovercraft Full Of Eels, Apr 24 '17 at 16:02
Yes you can say that, now I deleted the while loop and Thread.sleep instruction and the chart appear in another window but it will be static not dynamic. — Nour Yasmin, Apr 24 '17 at 16:08
Then check out the solutions to similar questions and consider using a SwingWorker. — Hovercraft Full Of Eels, Apr 24 '17 at 16:23
This should point you in the right direction: http://knowm.org/how-to-make-real-time-charts-in-java/ It uses SwingWorker. — herrtim, Jun 30 '17 at 12:51

how to display chart in a Jpanel with Jframe

0 Answers0