 |
Chapter 19 java.awt Reference |
 |
CheckboxGroup
Name
CheckboxGroup
![[Graphic: Figure from the text]](./figs/checkb4.gif)
Description
The CheckboxGroup class provides the means to group multiple Checkbox items into a mutual exclusion set, so that only one checkbox in the set has the value true at any time. The checkbox with the value true is the currently selected checkbox. Mutually exclusive checkboxes usually have a different appearance from regular checkboxes and are also called "radio buttons."
Class Definition
public class java.awt.CheckboxGroup
extends java.lang.Object
implements java.io.Serializable {
// Constructors
public CheckboxGroup();
// Instance Methods
public Checkbox getCurrent(); 
public Checkbox getSelectedCheckbox() 
public synchronized void setCurrent (Checkbox checkbox);
public synchronized void setSelectedCheckbox (Checkbox checkbox);
public String toString();
}
Constructors
CheckboxGroup
public CheckboxGroup()
- Description
-
Constructs a CheckboxGroup object.
Instance Methods
getCurrent
public Checkbox getCurrent()
- Returns
-
The currently selected Checkbox within the CheckboxGroup.
- Description
-
Replaced by the more aptly named getSelectedCheckbox().
getSelectedCheckbox
public Checkbox getSelectedCheckbox()
- Returns
-
The currently selected Checkbox within the CheckboxGroup.
setCurrent
public synchronized void setCurrent (Checkbox checkbox)
- Parameters
-
- checkbox
-
The Checkbox to select.
- checkbox
- Description
-
Changes the currently selected Checkbox within the CheckboxGroup.
- Description
-
Replaced by setSelectedCheckbox(Checkbox).
setSelectedCheckbox
public synchronized void setSelectedCheckbox (Checkbox checkbox)
- Parameters
-
- checkbox
-
The Checkbox to select.
- checkbox
- Description
-
Changes the currently selected Checkbox within the CheckboxGroup.
toString
public String toString()
- Returns
-
A string representation of the CheckboxGroup object.
- Overrides
-
Object.toString()
See Also
Checkbox, Object, String
|
 |
|
| Checkbox |  |
CheckboxMenuItem |
