title: jToggleButton.setText() not changing text on button
body: <p>I'm working in NetBeans. I wanted to make a simple 3-2-1 count down after clicking on a toggle button, displaying the countdown on the button. I'm a bit new to working with anything time related in Java, but the simplest way to make such a simple countdown seemed to be just using Thread.sleep() as below. The program waits 3 seconds as it should and prints the button's text to the command line, however, the text on the button itself does not change. Any idea why this might happen and how to fix it? Thanks!</p>
  
  <pre><code>jToggleButton1.setText("3...");
  System.out.println(jToggleButton1.getText());
  try{
      Thread.sleep(1000);
  }
  catch(InterruptedException e){}
  jToggleButton1.setText("2...");
  System.out.println(jToggleButton1.getText());
  try{
      Thread.sleep(1000);
  }
  catch(InterruptedException e){}
  jToggleButton1.setText("1...");
  System.out.println(jToggleButton1.getText());
  try{
      Thread.sleep(1000);
  }
  catch(InterruptedException e){}
  </code></pre>