Re: Thread problems with javax.swing.Timer?

Nigel Wade <>
Fri, 08 May 2009 16:46:22 +0100
Giampiero Mughini wrote:

Sabine Dinis Blochberger ha scritto:

A compilable example would help [1].

My guess is that whatever your timer does, should go into an invokeLater
block. See EventQueue [2]. Example:

    SwingUtilities.invokeLater(new Runnable() {
        public void run() {
     // your code

protected void startCounter() {
              if (timer!=null)
              timer = new Timer(1000, new ActionListener() {
                      public void actionPerformed(ActionEvent arg0) {


Should I put the call to the method updateDisplay() into an invokeLater

No need. It's within the actionPerfomed() method of an ActionListener. This will
be run by the EDT when the requisite action is encountered, i.e. when the Timer


Nigel Wade

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