javax.swing
Class JRadioButton

java.lang.Object   
  java.awt.Component   
      java.awt.Container   
          javax.swing.JComponent   
              javax.swing.AbstractButton   
                  javax.swing.JToggleButton   
                      javax.swing.JRadioButton

All Implemented Interfaces:

ImageObserver , ItemSelectable , MenuContainer , Serializable , Accessible , SwingConstants

public class JRadioButton
extends JToggleButton   
implements Accessible   

An implementation of a radio button -- an item that can be selected or deselected, and which displays its state to the user. Used with a ButtonGroup object to create a group of buttons in which only one button at a time can be selected. (Create a ButtonGroup object and use its add method to include the JRadioButton objects in the group.)

Note: The ButtonGroup object is a logical grouping -- not a physical grouping. Tocreate a button panel, you should still create a JPanel or similar container-object and add a Border to it to set it off from surrounding components.

See How to Use Buttons, Check Boxes, and Radio Buttons in The Java Tutorial for further documentation.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans^TM has been added to the java.beans package. Please see XMLEncoder .

See Also:

ButtonGroup , JCheckBox , Serialized Form

Nested Class Summary

protected class

JRadioButton.AccessibleJRadioButton This class implements accessibility support for the JRadioButton class.

Nested classes/interfaces inherited from class javax.swing.JToggleButton

JToggleButton.AccessibleJToggleButton , JToggleButton.ToggleButtonModel

Nested classes/interfaces inherited from class javax.swing.AbstractButton

AbstractButton.AccessibleAbstractButton , AbstractButton.ButtonChangeListener

Nested classes/interfaces inherited from class javax.swing.JComponent

JComponent.AccessibleJComponent

Nested classes/interfaces inherited from class java.awt.Container

Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

Component.AccessibleAWTComponent , Component.BltBufferStrategy , Component.FlipBufferStrategy

Field Summary

Fields inherited from class javax.swing.AbstractButton

actionListener , BORDER_PAINTED_CHANGED_PROPERTY , changeEvent , changeListener , CONTENT_AREA_FILLED_CHANGED_PROPERTY , DISABLED_ICON_CHANGED_PROPERTY , DISABLED_SELECTED_ICON_CHANGED_PROPERTY , FOCUS_PAINTED_CHANGED_PROPERTY , HORIZONTAL_ALIGNMENT_CHANGED_PROPERTY , HORIZONTAL_TEXT_POSITION_CHANGED_PROPERTY , ICON_CHANGED_PROPERTY , itemListener , MARGIN_CHANGED_PROPERTY , MNEMONIC_CHANGED_PROPERTY , model , MODEL_CHANGED_PROPERTY , PRESSED_ICON_CHANGED_PROPERTY , ROLLOVER_ENABLED_CHANGED_PROPERTY , ROLLOVER_ICON_CHANGED_PROPERTY , ROLLOVER_SELECTED_ICON_CHANGED_PROPERTY , SELECTED_ICON_CHANGED_PROPERTY , TEXT_CHANGED_PROPERTY , VERTICAL_ALIGNMENT_CHANGED_PROPERTY , VERTICAL_TEXT_POSITION_CHANGED_PROPERTY

Fields inherited from class javax.swing.JComponent

accessibleContext , listenerList , TOOL_TIP_TEXT_KEY , ui , UNDEFINED_CONDITION , WHEN_ANCESTOR_OF_FOCUSED_COMPONENT , WHEN_FOCUSED , WHEN_IN_FOCUSED_WINDOW

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT , CENTER_ALIGNMENT , LEFT_ALIGNMENT , RIGHT_ALIGNMENT , TOP_ALIGNMENT

Fields inherited from interface javax.swing.SwingConstants

BOTTOM , CENTER , EAST , HORIZONTAL , LEADING , LEFT , NEXT , NORTH , NORTH_EAST , NORTH_WEST , PREVIOUS , RIGHT , SOUTH , SOUTH_EAST , SOUTH_WEST , TOP , TRAILING , VERTICAL , WEST

Fields inherited from interface java.awt.image.ImageObserver

ABORT , ALLBITS , ERROR , FRAMEBITS , HEIGHT , PROPERTIES , SOMEBITS , WIDTH

Constructor Summary

JRadioButton ()
Creates an initially unselected radio button with no set text.

JRadioButton (Action a)
Creates a radiobutton where properties are taken from the Action supplied.

JRadioButton (Icon icon)
Creates an initially unselected radio button with the specified image but no text.

JRadioButton (Icon icon, boolean selected)
Creates a radio button with the specified image and selection state, but no text.

JRadioButton (String text)
Creates an unselected radio button with the specified text.

JRadioButton (String text, boolean selected)
Creates a radio button with the specified text and selection state.

JRadioButton (String text, Icon icon)
Creates a radio button that has the specified text and image, and that is initially unselected.

JRadioButton (String text, Icon icon, boolean selected)
Creates a radio button that has the specified text, image, and selection state.

Method Summary

protected void	configurePropertiesFromAction (Action a) Factory method which sets the ActionEvent source's properties according to values from the Action instance.
protected PropertyChangeListener	createActionPropertyChangeListener (Action a) Factory method which creates the PropertyChangeListener used to update the ActionEvent source as properties change on its Action instance.
AccessibleContext	getAccessibleContext () Gets the AccessibleContext associated with this JRadioButton.
String	getUIClassID () Returns the name of the L&F class that renders this component.
protected String	paramString () Returns a string representation of this JRadioButton.
void	updateUI () Resets the UI property to a value from the current look and feel.

Methods inherited from class javax.swing.AbstractButton

addActionListener , addChangeListener , addImpl , addItemListener , checkHorizontalKey , checkVerticalKey , createActionListener , createChangeListener , createItemListener , doClick , doClick , fireActionPerformed , fireItemStateChanged , fireStateChanged , getAction , getActionCommand , getActionListeners , getChangeListeners , getDisabledIcon , getDisabledSelectedIcon , getDisplayedMnemonicIndex , getHorizontalAlignment , getHorizontalTextPosition , getIcon , getIconTextGap , getItemListeners , getLabel , getMargin , getMnemonic , getModel , getMultiClickThreshhold , getPressedIcon , getRolloverIcon , getRolloverSelectedIcon