You have several options:
- Create new JPanels for each "page" and swap them via a CardLayout.
- Create a single JPanel for displaying page information, and then swap content on pressing the button. I favor this solution if at all possible as the simplest and the one best suited to a good MVC solution.
As an aside, if you're new to the Swing GUI library, then I suggest that you put the GUI-builder to the side for a bit til you learn the underpinnings of the library. This will help prevent you from painting yourself in a corner should you use the GUI builder later.