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-   -   Timer with printwriter to server need an answer (http://www.go4expert.com/forums/timer-printwriter-server-answer-t25681/)

notanexpert 2May2011 07:58

Timer with printwriter to server need an answer
Hello all,
I am building a large piece of software and I haven't had any difficulty until now. I have been on this for 2 days getting nowhere. It might be simple, but I can't figure it out. I have a client/server/database doing all these things. In my client there are many action performs. There is a panel in my program which contains a TextArea with a Clock in it. When the clock is started, the initial value of the clock is displayed in another textArea which I am sending that value to the server. The thing is, my timer is located in my start timer button's action performed event. Even though my t.start() is placed before my try statement that executes my printwriter, the try statement runs before the timer starts making it impossible to read the text in from my text area containing the initial value. I have tried putting my t.start() EVERYWHERE. Not one place allows it to work. Have a look at my snippet of code below and check out my comments;


    Timer t = new javax.swing.Timer(1000, new ClockTickAction());

    public class ClockTickAction implements ActionListener {

    public void actionPerformed(java.awt.event.ActionEvent evt){


            String startstring = "";
            Calendar now = Calendar.getInstance();

            int h = now.get(Calendar.HOUR_OF_DAY);
            int m = now.get(Calendar.MINUTE);
            int s = now.get(Calendar.SECOND);
            String starttime = "" + h + ":" + m + ":" + s;
            timerfield.setText(starttime);    // the field my timer is located in visibly

            boolean checktimerfield= timerfield.getText().isEmpty();
            boolean checktimerev = timerev1.getText().isEmpty();
                startstring = timerfield.getText(); // so I can get the initial value of clock
                timerev1.setText(startstring);  // works great

// timerev1 contains the text I am trying to send away to the server
// everything works perfectly, the clock continues ticking and the initial value is placed

    private void startbuttonActionPerformed(java.awt.event.ActionEvent evt) {
        // the button that starts the clock

        t.start(); // starting the clock which seems to happen after the next trycatch
              outs = new PrintWriter(s.getOutputStream(), true);
                String employeenumber = clocknamefield.getText();

// getting an empty string here... which should contain the initial time, which it does, but only after this try statement takes effect.

                  catch (IOException ex) {
                Logger.getLogger(VideoStoreView.class.getName()).log(Level.SEVERE, null, ex);


So my server reads the name of the user perfectly, then it prints "initial time is " and there is nothing there. I am trying to figure out how to fix this. I have done 100s of similar things before but never using a Timer like this which has to be my problem. I would really appreciate an answer tonight due to the fact that I am running out of time and am desperate for help.


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