How to set Font characteristics on JTEXTPane ?

Question

Hello,
For 5 days, I'm looking for a way to set defaults to a text in a JTextPane. I tried many things, but I always failed.
Here is what I want exactly to do :
Before to display a text in a JTextPane, I want all the text to be in a particular font, with a particular size and various attributes (bold, italic, etc..).
So before I make it visible I does the following (certainly it's wrong) :
void InitialLoad()
        try
     in = new FileInputStream(file);
        //Create the text pane and configure it
        rtf.read(in, lpd, 0);
        TextPane.setDocument(lpd);
    catch (Exception ex)   {System.out.println("Errorr"); };
     TextPane.selectAll();
     TextPane.setCaretPosition( 1);
      String fontName=   "Arial";  
      Action FontFamily = new StyledEditorKit.FontFamilyAction(fontName, fontName);
      FontFamily.actionPerformed(null);
      int fontSize=   12;  // default size
      Action FontSize = new StyledEditorKit.FontSizeAction(""+fontSize, fontSize);
      FontSize.actionPerformed(null);
      Action italic = new StyledEditorKit.ItalicAction();
      italic.actionPerformed(null);   // italic is the default
       TextPane.setVisible(true);
}When I do this, the text display correctly, but not with the Defaults I was expecting.
Of course, I have implemented listener classes : UndoableEditListener, DocumentListener and UndoAction() and RedoAction()
Any help would be very welcome. Thanks for all.

Answer 1

If you need further help then you need to create a [Short, Self Contained, Compilable and Executable, Example Program (SSCCE)|http://homepage1.nifty.com/algafield/sscce.html], that demonstrates the incorrect behaviour.
Don't forget to use the [Code Formatting Tags|http://forum.java.sun.com/help.jspa?sec=formatting], so the posted code retains its original formatting.