Follow these links for information about the layout managers supported by the IDE:
FlowLayout
BorderLayout
GridLayout
GridBagLayout
CardLayout
BoxLayout
AbsoluteLayout
Null Layout
For more information about how to choose a layout manager and how to use each of the layout manager classes the Java platform provides, see "The Java Swing Tutorial" at http://java.sun.com/docs/books/tutorial/uiswing/index.html