Adding Components to a JFrame

I am writing an application which would be having a main frame containing a panel, leading to several other frames with different components.

I want to keep the main frame constant through out the application and i want the remaining frames to get new components added as required.

But this is not happening. Whenever i want to add a new component ( Eg., a Panel) to the main frame, the new component, instead of getting attached to the main frame, is being added separately in a separate new frame.

Can anyone suggest me a method to solve this problem?

[579 byte] By [sangita.sa] at [2007-10-1 8:21:33]