Technically you should set the GUI up before returning from init:

public class SomeApplet extends JApplet {
   private static final long serialVersionUID = -3683798728718521374L;
   @Override
   public void init() {
       try {
           java.awt.EventQueue.invokeAndWait(new Runnable() {
                     public void run() {
                         new UI();
                     }
           });
       } catch (InterruptedException exc) {
           Thread.currentThread().interrupt();
       } catch (java.lang.reflect.InvocationTargetException exc) {
           Throwable cause = exc.getCause();
           if (cause instanceof RuntimeException) {
                throw (RuntimeException)cause;
           } else if (cause instanceof Error) {
                throw (Error)cause;
           } else {
               throw new Error(cause);
           }
       }
   }
}

(Disclaimer: Not tested or even compiled.)

However, I don't know whether that actually makes any difference.

Tom Hawtin

There might be a number of changes to make,
depending on the code you did not show.

<dws>
Line 54, change the '.', to a ',' and it should be
set to go.  
</dws>

Failing that, give more details*.

Lazy, is it?  

* If not, try actually *describing* what went wrong,
what you saw but did not expect to see, or vice
versa, what you did not see, but expected to see.  
Were there any errors listed in the Java console?

Let me know at least the details of what is going
wrong, and I might be able to help further.

see http://mindprod.com/jgloss/japplet.html#CONVERTING
--
Roedy Green Canadian Mind Products
The Java Glossary
http://mindprod.com

It is a lot easier to convert a JApplet to a application or a hybrid
than the reverse.  Have a look at some of my hybrids at
http://mindprod.com/products1.html

You move all your code to allocate and set up components to init.

Init also must set up the listeners and do the layout. I use IntelliJ
to refactor the code to put each of these functions in its own method
called by init.

You then need to write your start,  stop and destroy, often empty.

Make user you use JApplet.getContentpane rather than using JApplet
directly for setBackground, setLayout and add.

look at one of my programs like
http://mindprod.com/products1.html#AMERICANTAX
to see the overall structure.
--
Roedy Green Canadian Mind Products
The Java Glossary
http://mindprod.com