当前页面: 在线文档首页 > JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class JRadioButtonMenuItem - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

Overview  Package   Class  Use  Tree  Deprecated  Index  Help		JavaTM 2 Platform Standard Edition
PREV CLASS   NEXT CLASS	FRAMES    NO FRAMES
SUMMARY:  INNER | FIELD | CONSTR | METHOD	DETAIL:  FIELD | CONSTR | METHOD

---

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

---

public class JRadioButtonMenuItem

extends JMenuItem

implements Accessible

An implementation of a RadioButtonMenuItem. A RadioButtonMenuItem 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.

Used with a ButtonGroup object to create a group of menu items in which only one item at a time can be selected. (Create a ButtonGroup object and use its add method to include the JRadioButtonMenuItem objects in the group.)

For the keyboard keys used by this component in the standard Look and Feel (L&F) renditions, see the JRadioButtonMenuItem key assignments.

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. A future release of Swing will provide support for long term persistence.

See Also:

ButtonGroup, Serialized Form

---

Inner Class Summary
protected  class	JRadioButtonMenuItem.AccessibleJRadioButtonMenuItem           The class used to obtain the accessible role for this object.

 

Inner classes inherited from class javax.swing.JMenuItem

JMenuItem.AccessibleJMenuItem

 

Inner classes inherited from class javax.swing.AbstractButton

AbstractButton.AccessibleAbstractButton, AbstractButton.ButtonChangeListener

 

Inner classes inherited from class javax.swing.JComponent

JComponent.AccessibleJComponent

 

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

 

Constructor Summary

JRadioButtonMenuItem()           Creates a JRadioButtonMenuItem with no set text or icon.

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 b)           Creates a radiobutton menu item with the specified text and selection state.

JRadioButtonMenuItem(String text, Icon icon)           Creates a JRadioButtonMenuItem 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()           Get the AccessibleContext associated with this JComponent
String	getUIClassID()           Returns the name of the L&F class that renders this component.
protected  String	paramString()           Returns a string representation of this JRadioButtonMenuItem.
void	requestFocus()           Override Component.requestFocus() to not grab focus.

 

Methods inherited from class javax.swing.JMenuItem

addMenuDragMouseListener, addMenuKeyListener, fireMenuDragMouseDragged, fireMenuDragMouseEntered, fireMenuDragMouseExited, fireMenuDragMouseReleased, fireMenuKeyPressed, fireMenuKeyReleased, fireMenuKeyTyped, getAccelerator, getComponent, getSubElements, init, isArmed, menuSelectionChanged, processKeyEvent, processMenuDragMouseEvent, processMenuKeyEvent, processMouseEvent, removeMenuDragMouseListener, removeMenuKeyListener, setAccelerator, setArmed, setEnabled, setUI, updateUI

 

Methods inherited from class javax.swing.AbstractButton

addActionListener, addChangeListener, addItemListener, checkHorizontalKey, checkVerticalKey, createActionListener, createChangeListener, createItemListener, doClick, doClick, fireActionPerformed, fireItemStateChanged, fireStateChanged, getActionCommand, getDisabledIcon, getDisabledSelectedIcon, getHorizontalAlignment, getHorizontalTextPosition, getIcon, getLabel, getMargin, getMnemonic, getModel, getPressedIcon, getRolloverIcon, getRolloverSelectedIcon, getSelectedIcon, getSelectedObjects, getText, getUI, getVerticalAlignment, getVerticalTextPosition, isBorderPainted, isContentAreaFilled, isFocusPainted, isRolloverEnabled, isSelected, paintBorder, removeActionListener, removeChangeListener, removeItemListener, setActionCommand, setBorderPainted, setContentAreaFilled, setDisabledIcon, setDisabledSelectedIcon, setFocusPainted, setHorizontalAlignment, setHorizontalTextPosition, setIcon, setLabel, setMargin, setMnemonic, setMnemonic, setModel, setPressedIcon, setRolloverEnabled, setRolloverIcon, setRolloverSelectedIcon, setSelected, setSelectedIcon, setText, setUI, setVerticalAlignment, setVerticalTextPosition

 

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getAlignmentX, getAlignmentY, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getConditionForKeyStroke, getDebugGraphicsOptions, getGraphics, getHeight, getInsets, getInsets, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getVisibleRect, getWidth, getX, getY, grabFocus, hasFocus, isDoubleBuffered, isFocusCycleRoot, isFocusTraversable, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintChildren, paintComponent, paintImmediately, paintImmediately, processComponentKeyEvent, processFocusEvent, processKeyEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setDebugGraphicsOptions, setDoubleBuffered, setFont, setForeground, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setUI, setVisible, unregisterKeyboardAction, update

 

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getLayout, insets, invalidate, isAncestorOf, layout, list, list, locate, minimumSize, paintComponents, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setCursor, setLayout, validate, validateTree

 

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, getBackground, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocationOnScreen, getName, getParent, getPeer, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hide, imageUpdate, inside, isDisplayable, isEnabled, isLightweight, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processInputMethodEvent, processMouseEvent, remove, removeComponentListener, removeFocusListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setDropTarget, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Constructor Detail

JRadioButtonMenuItem

public JRadioButtonMenuItem()

Creates a JRadioButtonMenuItem with no set text or icon.

---

JRadioButtonMenuItem

public JRadioButtonMenuItem(Icon icon)

Creates a JRadioButtonMenuItem with an icon.

Parameters:

icon - the Icon to display on the RadioButtonMenuItem.

---

JRadioButtonMenuItem

public JRadioButtonMenuItem(String text)

Creates a JRadioButtonMenuItem with text.

Parameters:

text - the text of the RadioButtonMenuItem.

---

JRadioButtonMenuItem

public JRadioButtonMenuItem(String text,
                            Icon icon)

Creates a JRadioButtonMenuItem with the specified text and Icon.

Parameters:

text - the text of the RadioButtonMenuItem

icon - the icon to display on the RadioButtonMenuItem

---

JRadioButtonMenuItem

public JRadioButtonMenuItem(String text,
                            boolean b)

Creates a radiobutton menu item with the specified text and selection state.

Parameters:

text - the text of the CheckBoxMenuItem.

b - the selected state of the checkboxmenuitem

---

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 display

selected - 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.

Parameters:

text - the string displayed on the radio button

icon - 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:

getUIClassID in class JMenuItem

Returns:

"RadioButtonMenuItemUI"

See Also:

JComponent.getUIClassID(), UIDefaults.getUI(javax.swing.JComponent)

---

requestFocus

public void requestFocus()

Override Component.requestFocus() to not grab focus.

Overrides:

requestFocus in class JComponent

Tags copied from class: Component

See Also:

FocusEvent, Component.addFocusListener(java.awt.event.FocusListener), Component.processFocusEvent(java.awt.event.FocusEvent), Component.isFocusTraversable()

---

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 be null.

Overrides:

paramString in class JMenuItem

Returns:

a string representation of this JRadioButtonMenuItem.

---

getAccessibleContext

public AccessibleContext getAccessibleContext()

Get the AccessibleContext associated with this JComponent

Specified by:

getAccessibleContext in interface Accessible

Overrides:

getAccessibleContext in class JMenuItem

Returns:

the AccessibleContext of this JComponent

---

Overview  Package   Class  Use  Tree  Deprecated  Index  Help		JavaTM 2 Platform Standard Edition
PREV CLASS   NEXT CLASS	FRAMES    NO FRAMES
SUMMARY:  INNER | FIELD | CONSTR | METHOD	DETAIL:  FIELD | CONSTR | METHOD

---

Submit a bug or feature
Java, Java 2D, and JDBC are a trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.
Copyright 1993-1999 Sun Microsystems, Inc. 901 San Antonio Road,
Palo Alto, California, 94303, U.S.A. All Rights Reserved.