| Package | Description | 
|---|---|
| javax.swing | Provides a set of "lightweight"
(all-Java language) components that,
to the maximum degree possible, work the same on all platforms. | 
| Modifier and Type | Field and Description | 
|---|---|
| protected ButtonGroup | DefaultButtonModel. groupThe button group that the button belongs to. | 
| Modifier and Type | Method and Description | 
|---|---|
| ButtonGroup | DefaultButtonModel. getGroup()Returns the group that the button belongs to. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | DefaultButtonModel. setGroup(ButtonGroup group)Identifies the group the button belongs to --
 needed for radio buttons, which are mutually
 exclusive within their group. | 
| void | ButtonModel. setGroup(ButtonGroup group)Identifies the group the button belongs to --
 needed for radio buttons, which are mutually
 exclusive within their group. | 
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