Delay a code by given seconds

Question

This a code written using java to delay the execution of the code by 5 seconds. But it is not working. either "this.jLabel2.setText("TDK");" statement not working. Can any one please help me to solve this problem.

 private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
    this.jLabel2.setText("TDK");
    boolean result=false;
    result=stop();
    if(result)
    {
      this.jLabel1.setText("MDK");
    }
}
public boolean stop()
{
    String current= new java.text.SimpleDateFormat("hh:mm"
            + ":ss").format(new java.util.Date(System.currentTimeMillis()));
    String future=new java.text.SimpleDateFormat("hh:mm"
            + ":ss").format(new java.util.Date(System.currentTimeMillis()+5000));   

    while(!(current.equals(future)))
    {
       current= new java.text.SimpleDateFormat("hh:mm"
               + ":ss").format(new java.util.Date(System.currentTimeMillis()));  
    }

      return true;
}

Answer 1

You are blocking the event dispatch thread (no, don't use Thread.sleep() either). Use a swing Timer:

Timer timer = new Timer(HIGHLIGHT_TIME, new ActionListener() {
    @Override
    public void actionPerformed(ActionEvent e) {
        jLabel1.setText("MDK");
    }
});
timer.setRepeats(false);
timer.start();

where HIGHLIGHT_TIME is the time you want to delay setting the text.