I have a class which generates a special type of graph and displays it in a JFrame. This works fine when I run the class on its own. However, my main application was developed with the NetBeans GUI editor. I need the class output(graph) to be displayed within a JFrame/JInternalFrame of the main GUI when it loads.

I have tried posting code in the customized code option of the GUI component but it hasn't worked.Anyone have any ideas on how to fix? Thanks...