Tool to convert a Java Swing application into applet

Question

I have a big Swing project. Is there any tool that convert the Swing application jar file into an applet?

Answer 1

If the original project creates a JFrame, you could simply get the JFrame's contentPane via

Container contentPane = myFrame.getContentPane();

And then add it the JApplet's as its contentPane, but you would lose menus and such.

For e.g.,

public class MyApplet extends JApplet {

   @Override
   public void init() {
      try {
         SwingUtilities.invokeAndWait(new Runnable() {
            public void run() {
               JFrame myFrame = new MyFrame("Frame");
               Container contentPane = myFrame.getContentPane();
               setContentPane(contentPane);
            }
         });
      } catch (InterruptedException e) {
         e.printStackTrace();
      } catch (InvocationTargetException e) {
         e.printStackTrace();
      }
   }
}

Better to have most of your GUI classes geared to create JPanels from the get go so you don't run into this limitation.