Java Reference
In-Depth Information
203 {
204 Font f =
new
Font(facename, fontstyle,
fontsize);
205 sampleField.setFont(f);
206 sampleField.repaint();
207 }
208
209
private
JLabel sampleField;
210
private
String facename;
211
private int
fontstyle;
212
private int
fontsize;
213
214
private static final int
FRAME_WIDTH =
300
;
215
private static final int
FRAME_HEIGHT =
400
;
216 }
807
808
S
ELF
C
HECK
6.
Why do
JMenu
objects not generate action events?
7.
Why is the
name
parameter in the
createFaceItem
method
declared as
final
?
18.4 Exploring the Swing Documentation
In the preceding sections, you saw the basic properties of the most common
user-interface components. We purposefully omitted many options and variations to
simplify the discussion. You can go a long way by using only the simplest properties
of these components. If you want to implement a more sophisticated effect, you can
look inside the Swing documentation. You will probably find the documentation quite
intimidating at first glance, though. The purpose of this section is to show you how
you can use the documentation to your advantage without becoming overwhelmed.
You should learn to navigate the API documentation to find out more about
user-interface components.
Recall the
Color
class that was introduced in
Chapter 2
. Every combination of red,
green, and blue values represents a different color. It should be fun to mix your own
colors, with a slider for the red, green, and blue values (see
Figure 10
).
