File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes Swing / AWT / SWT and the fly likes java.lang.ClassCastException Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Java » Swing / AWT / SWT
Bookmark "java.lang.ClassCastException" Watch "java.lang.ClassCastException" New topic


anu johncy

Joined: Dec 05, 2011
Posts: 11
hi ,
i try to create simple login page using Eclipse Editor
the code is following :

and one externel classfile having the same package that code is following :

then the error is
java.lang.ClassCastException: eclipsepackage.Login cannot be cast to javax.swing.event.AncestorListener

please support me to solve problem ,
thanks ,

[Edit - added code tags - MB]
John Jai

Joined: May 31, 2011
Posts: 1776

The error occurs because the Login class cannot be cast to the mentioned one. Are you sure you want to add AncestorListener and not the ActionListener? Because the login class implements only the ActionListener.
Matthew Brown

Joined: Apr 06, 2010
Posts: 4544

And Welcome to The Ranch!
I agree. Here's the link:
subject: java.lang.ClassCastException
It's not a secret anymore!