Question

I’m trying to close a frame yet open a new frame.

My application has page A, a JPanel with some controls and a specific button, and when the user clicks the button, I want page A to disappear and page B to appear (page B has controls that depend on the choices that are made by the user on page A).

This has been asked before, but there was no satisfactory answer. Inside the ActionListener implementation, namely public void ActionPerformed(ActionEvent e) from my jpanelForPageA class, I can comfortably write this.setVisible(false), but how can I set page B to a visible state?

Answer 1

You can do the removal of panel a and then the addition of panel b trick. Another is to use a CardLayout.

When you create your panels, you add them to a containing JPanel that you initialize with a CardLayout:

JPanel container = new JPanel(new CardLayout());
containter.add(getPanelA(), "PANEL_A"); 
containter.add(getPanelB(), "PANEL_B"); 

Then, in your actionPerformed, when you want to show panelB, you do this:

CardLayout cl = (CardLayout) container.getLayout();
cl.show("PANEL_B");

Take a look at this tutorial for some more ideas.