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validate() has no effect

 
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I have written an applet where two labels and two textfields need to be removed after the user clicks a certain button. I can't get it to work. When the button is clicked nothing happens...
Here's what I have made:

I know it seems kind of weird that you have to log in to an applet but it's an assignment for a class I'm taking so don't blame me

Any ideas? Thanks in advance!
 
Rosie Vogel
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Ignore my question, please. There was a mistake in my test. It's working now.
 
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