Borders - The Definitive Guide to Java Swing - page 221

public CompoundBorder()

public static CompoundBorder createCompoundBorder()

public CompoundBorder(Border outside, Border inside)
Border compoundBorder = new CompoundBorder(lineBorder, matteBorder);

public static CompoundBorder createCompoundBorder(Border outside, Border inside)
Border compoundBorder = BorderFactory.createCompoundBorder(lineBorder,
matteBorder);

■ Tip Keep in mind that CompoundBorder is itself a Border , so you can combine multiple borders into one

border many levels deep.

The opacity of a compound border depends on the opacity of the contained borders.
If both contained borders are opaque, so is the compound border. Otherwise, a compound
border is considered transparent.

Configuring Properties
In addition to the borderOpaque property inherited from AbstractBorder , Table 7-2 lists the two
read-only properties CompoundBorder adds.

Table 7-2. CompoundBorder Properties

Property Name Data Type Access

borderOpaque boolean Read-only

insideBorder Border Read-only

outsideBorder Border

Read-only

TitledBorder Class
Probably the most interesting border, TitledBorder can also be the most complicated to use. The
titled border allows you to place a text string around a component. In addition to surrounding a
single component, you can place a titled border around a group of components, like JRadioButton
objects, as long as they're placed within a container such as a JPanel . The TitledBorder can be
difficult to use, but there are several ways to simplify its usage. Figure 7-12 shows both a simple
titled border and one that's a little more complex.