swing - How to add JTextField in time running in Java? -


in order develop edit text in java study. i'm problem: program once opened user, if user click in button "search", actionlistener add field in jpanel.

for example: have class jtoolbar sets jtoolbar menu extends jpanel. then, add in jframe. within jtoolbar there's button "search", if user click @ button, jtextfield appears side menu instantly.

i try create class private within jtoolbar class. so, add jtextfield jpanel contains jtoolbar. however, not working. there's no error. not appears jtextfield. solve problem ?

when add component visible gui general code is:

panel.add(...); panel.revalidate(); panel.repaint();  // needed

you need revalidate() tell layout manager component has been added.


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