Re: How to save a new data file inside the executable JAR package?

From:
 Daniel Pitts <googlegroupie@coloraura.com>
Newsgroups:
comp.lang.java.programmer
Date:
Thu, 27 Sep 2007 15:01:15 -0000
Message-ID:
<1190905275.852887.14190@y42g2000hsy.googlegroups.com>
On Sep 27, 6:48 am, Lew <l...@lewscanon.com> wrote:

mekane wrote:

  public static void main(String[] args) {
    Thread t = new Thread() {
      public void run() {
        MemoryFrame frame = new MemoryFrame();
        frame.setVisible(true);
      }
    };
    SwingUtilities.invokeLater( t );
  }
}
</sscce>


I'm just curious, why do you create a new Thread to open the new
MemoryFrame? I would usually just create the new MemoryFrame in main().
What's the rationale here?


The rationale is that it's only safe to do Swing graphics operations from the
Event Dispatch Thread. If you haven't been doing that, you've been doing it
wrong all this time, and your programs could have lurking bugs.

--
Lew


True, but you should use Runnable, not Thread!

Also, you should use EventQueue.invokeLater(), not the wrapper
SwingUtilities.invokeLater().

One of my common approaches (depends on the situation ofcourse) is to
make my main class the main frame and the runnable:

public class MyApp extends JFrame implements Runnable {
   public static void main(String[] args) {
      EventQueue.invokeLater(new MyApp());
   }

   public void run() {
      // set up children components.
   }
}

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