import java.awt.Dimension; import java.awt.Component; import java.awt.GridBagLayout; import java.awt.GridBagConstraints; public class SettingsDialog extends LCDialog { private JTree selectionList; ...

Compare GridLayout and GridBagLayout to GridLayout2 Figures 1, 2, and 3 show a random arrangement of 14 multisized JLabels using the three grid layouts: GridLayout, GridBagLayout, and GridLayout2.

The class extends Swing’s JPanel and has two additional methods init() and addItem(). The init() is called from the constructor and sets up GridBagLayout used by the panel.