Dear Darryl
Thanks for reply.
Yes, the method named setPlayingCards i wrote.
Besides that method everything works fine as it should be.
I have added contentPane.revalidate(); after read your post but still doesn't work.
Sorry for bothering you guys but i am learning
Java about a month for now and we didn't learned GUI(Swing/Awt) yet.
All we know is just Java basics but i want to learn Java ASAP
Anyway, let's turn back to my subject. Shortly revalidate(); didn't work.