Java Reference
In-Depth Information
Example 14-8. SpinnerDemo.java
public
public class
class
SpinnerDemo
SpinnerDemo
{
public
public static
void
main
(
String
[]
args
) {
JFrame jf
=
new
static
void
new
JFrame
(
"It Spins"
);
Container cp
=
jf
.
getContentPane
();
cp
.
setLayout
(
new
new
GridLayout
(
0
,
1
));
// Create a JSpinner using one of the pre-defined SpinnerModels
JSpinner dates
=
new
new
JSpinner
(
new
new
SpinnerDateModel
());
cp
.
add
(
dates
);
// Create a JSPinner using a SpinnerListModel.
String
[]
data
= {
"One"
,
"Two"
,
"Three"
};
JSpinner js
=
new
new
JSpinner
(
new
new
SpinnerListModel
(
data
));
cp
.
add
(
js
);
jf
.
setSize
(
100
,
80
);
jf
.
setVisible
(
true
true
);
}
}
Figure 14-9. SpinnerDemo output
JSpinner
's editors are reasonably clever. For example, if you select the leading zero of a
number (such as the
04
in
2004
), and try to increment it, the editor updates the entire number
(
04
to
05
) rather than producing something silly like
15
.
See Also
The earlier Swing classes
JList
and
JComboBox
also let you choose among values.
