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Java™ Platform Standard Ed. 6 |
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java.lang.Objectjava.awt.Component
java.awt.Container
javax.swing.JComponent
javax.swing.AbstractButton
javax.swing.JMenuItem
javax.swing.JRadioButtonMenuItem
public class JRadioButtonMenuItem
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.
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. |
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JRadioButtonMenuItem(String text,
Icon icon)
Creates a radio button menu item with the specified text and Icon. |
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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 |
|---|
public JRadioButtonMenuItem()
JRadioButtonMenuItem with no set text or icon.
public JRadioButtonMenuItem(Icon icon)
JRadioButtonMenuItem with an icon.
icon - the Icon to display on the
JRadioButtonMenuItempublic JRadioButtonMenuItem(String text)
JRadioButtonMenuItem with text.
text - the text of the JRadioButtonMenuItempublic JRadioButtonMenuItem(Action a)
Action supplied.
a - the Action on which to base the radio
button menu item
public JRadioButtonMenuItem(String text,
Icon icon)
Icon.
text - the text of the JRadioButtonMenuItemicon - the icon to display on the JRadioButtonMenuItem
public JRadioButtonMenuItem(String text,
boolean selected)
text - the text of the CheckBoxMenuItemselected - the selected state of the CheckBoxMenuItem
public JRadioButtonMenuItem(Icon icon,
boolean selected)
icon - the image that the button should displayselected - if true, the button is initially selected;
otherwise, the button is initially unselected
public JRadioButtonMenuItem(String text,
Icon icon,
boolean selected)
text - the string displayed on the radio buttonicon - the image that the button should display| Method Detail |
|---|
public String getUIClassID()
getUIClassID in class JMenuItemJComponent.getUIClassID(),
UIDefaults.getUI(javax.swing.JComponent)protected String paramString()
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
be null.
paramString in class JMenuItemJRadioButtonMenuItempublic AccessibleContext getAccessibleContext()
getAccessibleContext in interface AccessiblegetAccessibleContext in class JMenuItem
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Java™ Platform Standard Ed. 6 |
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