JPanel doesn't show new text after JLabel edit

Question

Hello,
I am trying to create a custom progress bar-esk window to show users during lengthy methods.
I have a new Thread which creates and displays a new ProgressWindow object (a JFrame with a JPanel and JLabel attatched). At second intervals the text of the JLabel attatched to this frame will change. however the text seen in the window is not updated.
System.out's show the value of the JLable to be correctly changing.
Here is the code for creating the Thread and window:
     Runnable r = new Runnable() {
                    public void run() {
                        try {
                            prog = new ProgressWindow();//creates the frame
                            prog.addStuff();//adds the components
                            prog.addListeners(inter);
                           while(true){
                               prog.makeAnimation();
                        } catch (InterruptedException ex) {
                            ex.printStackTrace();
                        } catch (IOException ex) {
                            ex.printStackTrace();
               new Thread(r).start();and the code within the ProgressWindow class which updates the label
public void makeAnimation() throws InterruptedException, MalformedURLException {
        Thread.sleep(1000);
        if (dots == 0) {
            System.out.println("dots 0");
            labelPanel.remove(dotty);
            dotty = new JLabel("Analysing input  ");
            labelPanel.add(dotty);
            labelPanel.repaint();
            dots++;
        } else if (dots == 1) {
            System.out.println("dots 1");
            labelPanel.remove(dotty);
            dotty = new JLabel("Analysing input .");
            labelPanel.add(dotty);
            labelPanel.repaint();
            dots++;
        } else if (dots == 2) {
            System.out.println("dots 2");
            labelPanel.remove(dotty);
            dotty = new JLabel("Analysing input ..");
            labelPanel.add(dotty);
            labelPanel.repaint();
            dots++;    
        } else if (dots == 3) {
            System.out.println("dots 3");
            labelPanel.remove(dotty);
            dotty = new JLabel("Analysing input ...");
            labelPanel.add(dotty);
            labelPanel.repaint();
            dots = 0; 
    }I assume this is a threading issue, however I don't understand why the value is correctly changing, but not being repainted. I'd appriciate any insight :)
thanks :)

Answer 1

Fillis52 wrote:
..As for the SSCCE, I have looked at the linked site and honestly thought I had met the requirements. The code was formatted, and only the methods which presented the problem were given. Should I have included the code to create the window also?The first 'S' seems covered, but it is not SC, C or an E. Which part of the words associated with those letters are you having trouble understanding?
If you had copy/pasted your code into the STBC (as recommended in the SSCCE document), it would have been obvious that it was not an SSCCE.
Instead of being rebuked, I should be told what is missing from my post in order to create a SSCCE as i obviously dont know how to do it properly.You expect us to have a crystal ball? Instead of complaining, it would be more productive to be specific about what part of S-SC-C-E document you do not understand. And this time, read it carefully, don't skim it.