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Message:

Call validate() method on JFrame after adding the new Button

Posted by Kishori Sharan on March 26, 2001 at 4:59 PM

If your class looks like
public class MyFrame extends JFrame {
}
and you have put the code you have mentioned in your query in some constructor or method of the frame then add the following line in actionPerformed() method.
MyFrame.this.validate ( ) ;
YOu just have to call validate () method on the frame in which you are adding the JButton after the JButton is added.

Thanx
Kishori