8. The Root Pane

The Root Pane manages the content pane and the menu bar:

For more details, see Using Top-Level Containers Oracle tutorial.

Available in Java 5 or later

• JFrame.getContentPane() method

• JFrame.add() method -- adds Component directly to JFrame without explicitly calling getContentPane()

• JFrame.remove() method

• JFrame.setLayout() method

Other JFrame methods must use getContentPane(). For example, setBackground()