How do I add a bunch of JPanels to my JFrame using Java Swing?

I generate a bunch of JPanels and then pass them into a class that extends JFrame. How do I add an indefinite number of JPanels to this JFrame. I was also reading about JScrollPane should I incorporate this somehow into the design?

Example Code:

class foo extends JPanel
{
  //generate JPanels
}

开发者_开发问答class bar extends JFrame
{
  //grab some amount of foo classes and put them into this JFrame and show it
}

Also is there anything I need to watch out for when showing this JFrame?

Thanks

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How do I add an indefinite number of JPanels to this JFrame?

CardLayout, JDesktopPane/JInternalFrame, JTabbedPane, JScrollPane - there are a number of options.

Also is there anything I need to watch out for when showing this JFrame?

(shrugs)

• Construct and show GUI components on the EDT.
• pack() the GUI before setting the position and calling setVisible(true).
• Don't rely on the default layouts of content panes.
• Don't implement custom painting in a top level container.
• ..

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JFrame -> JScrollPane -> fathers JPanel then you'll decide which of LayoutManager will lay your bunch of JPanels, by defalut FlowLayout, don't forget to play with PreferedSize for childsPanels