JRadioButtonMenuItem (Java Platform SE 6)
javax.swing
Class JRadioButtonMenuItem
java.lang.Object java.awt.Component java.awt.Container javax.swing.JComponent javax.swing.AbstractButton javax.swing.JMenuItem javax.swing.JRadioButtonMenuItem
- All Implemented Interfaces:
- ImageObserver, ItemSelectable, MenuContainer, Serializable, Accessible, MenuElement, SwingConstants
public class JRadioButtonMenuItem
- extends JMenuItem
- implements Accessible
An implementation of a radio button menu item.
A JRadioButtonMenuItem is
a menu item that is part of a group of menu items in which only one
item in the group can be selected. The selected item displays its
selected state. Selecting it causes any other selected item to
switch to the unselected state.
To control the selected state of a group of radio button menu items,
use a ButtonGroup object.
Menu items can be configured, and to some degree controlled, by
Actions. Using an
Action with a menu item has many benefits beyond directly
configuring a menu item. Refer to
Swing Components Supporting Action for more
details, and you can find more information in How
to Use Actions, a section in The Java Tutorial.
For further documentation and examples see How to Use Menus, a section in The Java Tutorial.
Warning: Swing is not thread safe. For more information see Swing's Threading Policy.
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 JavaBeansTM
has been added to the java.beans package.
Please see XMLEncoder.
- See Also:
ButtonGroup
| Nested Class Summary | |
|---|---|
protected class |
JRadioButtonMenuItem.AccessibleJRadioButtonMenuItem
This class implements accessibility support for the JRadioButtonMenuItem class. |
| Nested classes/interfaces inherited from class javax.swing.JMenuItem |
|---|
JMenuItem.AccessibleJMenuItem |
| 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.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy |
| Field Summary |
|---|
| 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 | |
|---|---|
JRadioButtonMenuItem()
Creates a JRadioButtonMenuItem with no set text or icon. |
|
JRadioButtonMenuItem(Action a)
Creates a radio button menu item whose properties are taken from the Action supplied. |
|
JRadioButtonMenuItem(Icon icon)
Creates a JRadioButtonMenuItem with an icon. |
|
JRadioButtonMenuItem(Icon icon,
boolean selected)
Creates a radio button menu item with the specified image and selection state, but no text. |
|
JRadioButtonMenuItem(String text)
Creates a JRadioButtonMenuItem with text. |
|
JRadioButtonMenuItem(String text,
boolean selected)
Creates a radio button menu item with the specified text and selection state. |
|
JRadioButtonMenuItem(String text,
Icon icon)
Creates a radio button menu item with the specified text and Icon. |
|
JRadioButtonMenuItem(String text,
Icon icon,
boolean selected)
Creates a radio button menu item that has the specified text, image, and selection state. |
|
| Method Summary | |
|---|---|
AccessibleContext |
getAccessibleContext()
Gets the AccessibleContext associated with this JRadioButtonMenuItem. |
String |
getUIClassID()
Returns the name of the L&F class that renders this component. |
protected String |
paramString()
Returns a string representation of this JRadioButtonMenuItem. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
JRadioButtonMenuItem
public JRadioButtonMenuItem()
- Creates a
JRadioButtonMenuItemwith no set text or icon.
JRadioButtonMenuItem
public JRadioButtonMenuItem(Icon icon)
- Creates a
JRadioButtonMenuItemwith an icon.- Parameters:
icon- theIconto display on theJRadioButtonMenuItem
JRadioButtonMenuItem
public JRadioButtonMenuItem(String text)
- Creates a
JRadioButtonMenuItemwith text.- Parameters:
text- the text of theJRadioButtonMenuItem
JRadioButtonMenuItem
public JRadioButtonMenuItem(Action a)
- Creates a radio button menu item whose properties are taken from the
Actionsupplied.- Parameters:
a- theActionon which to base the radio button menu item- Since:
- 1.3
JRadioButtonMenuItem
public JRadioButtonMenuItem(String text, Icon icon)
- Creates a radio button menu item with the specified text
and
Icon.- Parameters:
text- the text of theJRadioButtonMenuItemicon- the icon to display on theJRadioButtonMenuItem
JRadioButtonMenuItem
public JRadioButtonMenuItem(String text, boolean selected)
- Creates a radio button menu item with the specified text
and selection state.
- Parameters:
text- the text of theCheckBoxMenuItemselected- the selected state of theCheckBoxMenuItem
JRadioButtonMenuItem
public JRadioButtonMenuItem(Icon icon, boolean selected)
- Creates a radio button menu item with the specified image
and selection state, but no text.
- Parameters:
icon- the image that the button should displayselected- if true, the button is initially selected; otherwise, the button is initially unselected
JRadioButtonMenuItem
public JRadioButtonMenuItem(String text, Icon icon, boolean selected)
- Creates a radio button menu item that has the specified
text, image, and selection state. All other constructors
defer to this one.
- Parameters:
text- the string displayed on the radio buttonicon- the image that the button should display
| Method Detail |
|---|
getUIClassID
public String getUIClassID()
- Returns the name of the L&F class that renders this component.
- Overrides:
getUIClassIDin classJMenuItem
- Returns:
- the string "RadioButtonMenuItemUI"
- See Also:
JComponent.getUIClassID(),UIDefaults.getUI(javax.swing.JComponent)
paramString
protected String paramString()
- Returns a string representation of this
JRadioButtonMenuItem. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not benull. - Overrides:
paramStringin classJMenuItem
- Returns:
- a string representation of this
JRadioButtonMenuItem
getAccessibleContext
public AccessibleContext getAccessibleContext()
- Gets the AccessibleContext associated with this JRadioButtonMenuItem.
For JRadioButtonMenuItems, the AccessibleContext takes the form of an
AccessibleJRadioButtonMenuItem.
A new AccessibleJRadioButtonMenuItem instance is created if necessary.
- Specified by:
getAccessibleContextin interfaceAccessible- Overrides:
getAccessibleContextin classJMenuItem
- Returns:
- an AccessibleJRadioButtonMenuItem that serves as the AccessibleContext of this JRadioButtonMenuItem
Submit a bug or feature
For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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