ButtonGroup (Codename One API)

java.lang.Object
- com.codename1.ui.ButtonGroup

All Implemented Interfaces:

ActionSource<ActionEvent>
```
public class ButtonGroup
extends Object
implements ActionSource<ActionEvent>
```
This class is used to create a multiple-exclusion scope for RadioButton. Creating a set of RadioButton components with the same ButtonGroup object means that only one RadioButton can be selected among those within the specific ButtonGroup.

Constructor Summary

Constructors
Constructor and Description

ButtonGroup()
Creates a new instance of ButtonsGroup

ButtonGroup(RadioButton... rb)
Adds all the radio buttons to the group

Constructors
Constructor and Description
`ButtonGroup()` Creates a new instance of ButtonsGroup
`ButtonGroup(RadioButton... rb)` Adds all the radio buttons to the group

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`add(RadioButton rb)` Adds a RadioButton to the group
`void`	`addActionListener(ActionListener<ActionEvent> al)` Adds an action listener to all the buttons in the group
`void`	`addAll(RadioButton... rb)` Adds the RadioButtons to the group
`void`	`clearSelection()` Clears the selection such that none of the buttons in the ButtonGroup are selected.
`int`	`getButtonCount()` Returns the number of buttons in the group.
`RadioButton`	`getRadioButton(int index)` Returns the radio button at the given group index
`RadioButton`	`getSelected()` Return the selected radio button within the group
`int`	`getSelectedIndex()` Return the index of the selected button within the group
`boolean`	`isSelected()` Returns whether a radio button in the group is selected.
`void`	`remove(RadioButton rb)` removes a RadioButton from the group
`void`	`removeActionListener(ActionListener<ActionEvent> al)` Removes an action listener from all the buttons in the group
`void`	`setSelected(int index)` Sets the selected Radio button by index
`void`	`setSelected(RadioButton rb)` Selects the given radio button

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ButtonGroup
```
public ButtonGroup()
```
    Creates a new instance of ButtonsGroup
  - ButtonGroup
```
public ButtonGroup(RadioButton... rb)
```
    Adds all the radio buttons to the group
    
    Parameters:
    
    rb -
- Method Detail
  - addAll
```
public void addAll(RadioButton... rb)
```
    Adds the RadioButtons to the group
    
    Parameters:
    
    rb - a RadioButtons to add
  - add
```
public void add(RadioButton rb)
```
    Adds a RadioButton to the group
    
    Parameters:
    
    rb - a RadioButton to add
  - remove
```
public void remove(RadioButton rb)
```
    removes a RadioButton from the group
    
    Parameters:
    
    rb - a RadioButton to remove
  - clearSelection
```
public void clearSelection()
```
    Clears the selection such that none of the buttons in the ButtonGroup are selected.
  - getButtonCount
```
public int getButtonCount()
```
    Returns the number of buttons in the group.
    
    Returns:
    
    number of radio buttons in the group
  - isSelected
```
public boolean isSelected()
```
    Returns whether a radio button in the group is selected.
    
    Returns:
    
    true if a selection was made in the radio button group
  - getSelectedIndex
```
public int getSelectedIndex()
```
    Return the index of the selected button within the group
    
    Returns:
    
    the index of the selected button within the group
  - getSelected
```
public RadioButton getSelected()
```
    Return the selected radio button within the group
    
    Returns:
    
    the selected radio button within the group
  - getRadioButton
```
public RadioButton getRadioButton(int index)
```
    Returns the radio button at the given group index
    
    Parameters:
    
    index - offset within the group starting with 0 and no larger than getButtonCount()
    
    Returns:
    
    the radio button instance
  - setSelected
```
public void setSelected(RadioButton rb)
```
    Selects the given radio button
    
    Parameters:
    
    rb - the radio button to set as selected
  - setSelected
```
public void setSelected(int index)
```
    Sets the selected Radio button by index
    
    Parameters:
    
    index - the index of the radio button to mark as selected
  - addActionListener
```
public void addActionListener(ActionListener<ActionEvent> al)
```
    Adds an action listener to all the buttons in the group
    
    Specified by:
    
    addActionListener in interface ActionSource<ActionEvent>
    
    Parameters:
    
    al - the listener
  - removeActionListener
```
public void removeActionListener(ActionListener<ActionEvent> al)
```
    Removes an action listener from all the buttons in the group
    
    Specified by:
    
    removeActionListener in interface ActionSource<ActionEvent>
    
    Parameters:
    
    al - the listener

Class ButtonGroup

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ButtonGroup

ButtonGroup

Method Detail

addAll

add

remove

clearSelection

getButtonCount

isSelected

getSelectedIndex

getSelected

getRadioButton

setSelected

setSelected

addActionListener

removeActionListener