JPanel

A JPanel is a container that is used to group components together. Graphically, a panel corresponds to a rectangular section of the screen. Panels do not have visible edges.

To layout components using JPanels:

1. Decide on how to divide the content pane into panels.
   • Some areas of the content pane may be covered by panels.
   • Other areas might not be covered by panels.
2. Add GUI components to a panel or to the content pane.
3. Add the panels to the content pane.

Each panel uses its own layout manager for the components it contains. The default layout manager of JPanel is flow layout, which is often ideal. But you may use another layout manager if appropriate.

Now the panels are added to a frame. The content pane's layout manager arranges the panels as if each one were a single component.