Changing look and feel with radio buttons

Question

k this is the code that i have so far, Yes i read the tutorial and stuff but it doesnt seem to make any sense and all. tell me what else i need in this code to do what i want, its the action performed part i didnt put the other code, what else do i need??? but well...you will see grips of duke dollars to whom can do it
public void actionPerformed(ActionEvent e)
String actionCommand = e.getActionCommand();
if(actionCommand.equals("Metal"))
try
UIManager.setLookAndFeel( "javax.swing.plaf.metal.MetalLookAndFeel" );
catch (Exception ex)
else if(actionCommand.equals("Windows"))
try
UIManager.setLookAndFeel( "com.sun.java.swing.plaf.windows.WindowsLookAndFeel" );
catch (Exception ex)
else if(actionCommand.equals("Motif"))
try
UIManager.setLookAndFeel( "com.sun.java.swing.plaf.motif.MotifLookAndFeel");
catch (Exception ex)
}

Answer 1

While not in the tutorial, I have found several other things necessary to get the look and feel change to be complete. Here is the code I'm using after I set the look and feel. It seems to do a pretty good job of sync'ing everything together.
            SwingUtilities.updateComponentTreeUI(TDba.getFrame());
            TDba.getFrame().pack();
            Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
            Integer w = new Integer((int)(dim.width * .8));
            Integer h = new Integer((int)(dim.height * .8));           
            TDba.getFrame().setSize(w.intValue(), h.intValue());
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