GridBagLayout adds any component handed to it via the addLayoutComponent
method to an internal hashtable. It does nothing upon the invocation of
removeLayoutComponent.

Thus,

JFrame frame = new JFrame("Test");
frame.getContentPane().setLayout(new GridBagLayout());
frame.getContentPane().add(componentA);
frame.getContentPane().add(componentB);
frame.getContentPane().add(componentC);
frame.getContentPane().remove(componentA);
frame.getContentPane().remove(componentB);
frame.getContentPane().remove(componentC);

// At the end, the container content pane no longer has any references
// to the components, but there are references to the three components
// in the comptable hashtable in the GridBagLayout component

janet.koenig@Eng 1998-08-28