Java Reference
In-Depth Information
Figure 5-7.
An interactive Gauge
Because gauges can be interactive, you can add an
ITEM Command
instance to a gauge,
and then the gauge responds when the gauge is changed through its
ItemCommandListener
,
just as with an
ImageItem
or
StringItem
.
Managing Choices
The
Choice
interface and
ChoiceGroup
classes let you present a list of choices to users. As
shown in Figure 5-8, you can present choices as radio buttons (forcing an exclusive
choice, where users can select exactly one item at once), check boxes (where users can
select zero or more items), or a pop-up, which shows only the selected item.