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CheckboxGroup cbg = new CheckboxGroup();
Based on 186 examples
public class CheckboxGroup extends Object implements Serializable
The CheckboxGroup
class is used to group together
a set of Checkbox
buttons.
Exactly one check box button in a CheckboxGroup
can
be in the "on" state at any given time. Pushing any
button sets its state to "on" and forces any other button that
is in the "on" state into the "off" state.
The following code example produces a new check box group, with three check boxes:
setLayout(new GridLayout(3, 1)); CheckboxGroup cbg = new CheckboxGroup(); add(new Checkbox("one", cbg, true)); add(new Checkbox("two", cbg, false)); add(new Checkbox("three", cbg, false));
This image depicts the check box group created by this example:
Constructor Summary | |
---|---|
Creates a new instance of CheckboxGroup .
|
Method Summary | |
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Checkbox |
|
Checkbox |
Gets the current choice from this check box group. |
void |
setCurrent(Checkbox box) |
void |
Sets the currently selected check box in this group to be the specified check box. |
String |
toString() Returns a string representation of this check box group, including the value of its current selection. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public CheckboxGroup()
CheckboxGroup
.
Method Detail |
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public Checkbox getCurrent()
public Checkbox getSelectedCheckbox()
null
if all check boxes in the
group are off.
null
.public synchronized void setCurrent(Checkbox box)
box
public void setSelectedCheckbox(Checkbox box)
If the check box argument is null, all check boxes in this check box group are deselected. If the check box argument belongs to a different check box group, this method does nothing.
box
- the Checkbox
to set as the
current selection.public String toString()
toString
in class Object
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