How to clear off Jpanel off its components?

hai forum,
In my project i have to select a method when textfields to enter its parameters will be displayed in a panel(which is inside a scrollpanel).
When i select a second method(which is done using radio button) i want the previous panel screen having some text boxes to be cleared.
Could you forum friends help me out?
Thank you all.
Shailesh

Sir,
my problem is that I have a set of methods which could be selected using radiobutton.I f i select a method as many JTextFields will be displayed in a JPanel, as there are parameters.i.e if the method has two parameters then two textfields will be displayed.These are for the users to enter their input into.
Now ,when i select a different method then naturally the JPanel should be cleared of its previous textfields to give way for the new ones.
So how to clear off the older ones.Just noe i tried jPanel.removeAll(); but no action seems to be done.
shailesh

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