it is posible ?? call JInternalFrame from another JInternalFrame ?? if so how?
i've looking for the answer over many hours.. found some question before..
in here How to manage a JInternalFrame calling another JInternalFrame?
I dont know that means getInstance? I think thts a container for a contentPane.. same as this question
both of that didnt give a right answer. the error always like this..
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
help me, I've spend my day for this sad question...
or for a another way it is posible blind/return a value to the main JFrame???
thanks u :)