3 questions on visual changes and positioning

Question

Hello everyone,
I hope I have the right section for my questions. (so many categories) I have three questions that I hope I can get answered.
Question 1 ) I am writing an application that uses a JDesktopPane. I have a menu that each choice opens up a JInternalFrame. One of my internal frames contains option settings for the app. One of the option selections is the type of look and feel of the gui. I have three JRadioButtons that chooses the three built in types. When I use the method (see below) to change the gui look, it only effects the Internal Frame, not the rest of the app. Is there a way I can get it to change the rest of the frames and the main JDesktop.
private UIManager.LookAndFeelInfo looks[];
public void lookAndFeel()
          looks = UIManager.getInstalledLookAndFeels();
          try
               UIManager.setLookAndFeel(looks[lookChoice].getClassName());
               SwingUtilities.updateComponentTreeUI(this);
          catch(Exception exception)
               try
                    UIManager.setLookAndFeel(looks[0].getClassName());
               catch(Exception guiException)
                    // Nothing yet...
     }Question 2 ) Positioning --- I understand how to use layout managers, but is there a way I can override the positioning of objects? Sometimes, I want to postion objects to a point. Instead of automatic positioning.
Question 3 ) Adjusting properties --- I notice that when I create a different font and if I want an object to use that font then I need to setFont() for the object. Unfortunately, I have noticed that this needs to be done for every object. Is there a way to set the font for all the objects in a JPanel or JFrame at once?
Thanks everyone, (sorry for the numerous questions, just has been building for awhile)
7

Answer 1

Question 1 ) I am writing an application that uses a
JDesktopPane. I have a menu that each choice opens up
a JInternalFrame. One of my internal frames contains
option settings for the app. One of the option
selections is the type of look and feel of the gui. I
have three JRadioButtons that chooses the three built
in types. When I use the method (see below) to change
the gui look, it only effects the Internal Frame, not
the rest of the app. Is there a way I can get it to
change the rest of the frames and the main JDesktop.Try doing
revalidate();
repaint()
on all of them
Question 2 ) Positioning --- I understand how to use
layout managers, but is there a way I can override the
positioning of objects? Sometimes, I want to postion
objects to a point. Instead of automatic positioning.Your choice is either to call setLayout(null) and set component positions yourself or to create/extend your own layout manager
>
Question 3 ) Adjusting properties --- I notice that
when I create a different font and if I want an object
to use that font then I need to setFont() for the
object. Unfortunately, I have noticed that this needs
to be done for every object. Is there a way to set the
font for all the objects in a JPanel or JFrame at
once?Not that I can think of. Why not just create one method where you can set everybody's font with a font parameter?
>
Thanks everyone, (sorry for the numerous questions,
just has been building for awhile)
7