javax.swing
类 JRadioButtonMenuItem

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              javax.swing.AbstractButton
                  javax.swing.JMenuItem
                      javax.swing.JRadioButtonMenuItem

所有已实现的接口：

ImageObserver, ItemSelectable, MenuContainer, Serializable, Accessible, MenuElement, SwingConstants

public class JRadioButtonMenuItem
extends JMenuItem
implements Accessible

一个单选按钮菜单项的实现。JRadioButtonMenuItem 是属于一组菜单项中的一个菜单项，该组中只能选择一个项。被选择的项显示其选择状态。选择此项的同时，其他任何以前被选择的项都切换到未选择状态。要控制一组单选按钮菜单项的选择状态，请使用 ButtonGroup 对象。

通过 Action 可以配置菜单项，并进行一定程度的控制。对菜单项使用 Action 有许多直接配置菜单项所不及的优点。有关更多信息，请参阅支持 Action 的 Swing 组件，可以在 The Java Tutorial 中的 How to Use Actions 一节找到更多信息。

有关更多内容和示例，请参阅 The Java Tutorial 中的 How to Use Menus 一节。

警告：Swing 不是线程安全的。有关更多信息，请参阅 Swing's Threading Policy。

警告：此类的序列化对象与以后的 Swing 版本不兼容。当前序列化支持适用于短期存储，或适用于在运行相同 Swing 版本的应用程序之间进行 RMI（Remote Method Invocation，远程方法调用）。从 1.4 版本开始，已在 java.beans 包中添加了支持所有 JavaBeans^TM 长期存储的功能。请参见 XMLEncoder。

另请参见：

ButtonGroup

嵌套类摘要

protected class

JRadioButtonMenuItem.AccessibleJRadioButtonMenuItem 此类实现对 JRadioButtonMenuItem 类的可访问性支持。

从类 javax.swing.JMenuItem 继承的嵌套类/接口

JMenuItem.AccessibleJMenuItem

从类 javax.swing.AbstractButton 继承的嵌套类/接口

AbstractButton.AccessibleAbstractButton, AbstractButton.ButtonChangeListener

从类 javax.swing.JComponent 继承的嵌套类/接口

JComponent.AccessibleJComponent

从类 java.awt.Container 继承的嵌套类/接口

Container.AccessibleAWTContainer

从类 java.awt.Component 继承的嵌套类/接口

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

字段摘要

从类 javax.swing.AbstractButton 继承的字段

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

从类 javax.swing.JComponent 继承的字段

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

从类 java.awt.Component 继承的字段

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

从接口 javax.swing.SwingConstants 继承的字段

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

从接口 java.awt.image.ImageObserver 继承的字段

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

构造方法摘要

JRadioButtonMenuItem()
创建一个未设置文本或图标的 JRadioButtonMenuItem。

JRadioButtonMenuItem(Action a)
创建一个单选按钮菜单项，其属性来自提供的 Action。

JRadioButtonMenuItem(Icon icon)
创建一个带图标的 JRadioButtonMenuItem。

JRadioButtonMenuItem(Icon icon, boolean selected)
创建一个具有指定图像和选择状态的单选按钮菜单项，但无文本。

JRadioButtonMenuItem(String text)
创建一个带文本的 JRadioButtonMenuItem。

JRadioButtonMenuItem(String text, boolean selected)
创建一个具有指定文本和选择状态的单选按钮菜单项。

JRadioButtonMenuItem(String text, Icon icon)
创建一个具有指定文本和 Icon 的单选按钮菜单项。

JRadioButtonMenuItem(String text, Icon icon, boolean selected)
创建一个具有指定的文本、图像和选择状态的单选按钮菜单项。

方法摘要

AccessibleContext	getAccessibleContext() 获取与此 JRadioButtonMenuItem 相关联的 AccessibleContext。
String	getUIClassID() 返回呈现此组件的 L&F 类的名称。
protected String	paramString() 返回此 JRadioButtonMenuItem 的字符串表示形式。

从类 javax.swing.JMenuItem 继承的方法

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

从类 javax.swing.AbstractButton 继承的方法

addActionListener, addChangeListener, addImpl, addItemListener, checkHorizontalKey, checkVerticalKey, createActionListener, createActionPropertyChangeListener, createChangeListener, createItemListener, doClick, doClick, fireActionPerformed, fireItemStateChanged, fireStateChanged, getAction, getActionCommand, getActionListeners, getChangeListeners, getDisabledIcon, getDisabledSelectedIcon, getDisplayedMnemonicIndex, getHideActionText, getHorizontalAlignment, getHorizontalTextPosition, getIcon, getIconTextGap, getItemListeners, getLabel, getMargin, getMnemonic, getModel, getMultiClickThreshhold, getPressedIcon, getRolloverIcon, getRolloverSelectedIcon, getSelectedIcon, getSelectedObjects, getText, getUI, getVerticalAlignment, getVerticalTextPosition, imageUpdate, isBorderPainted, isContentAreaFilled, isFocusPainted, isRolloverEnabled, isSelected, paintBorder, removeActionListener, removeChangeListener, removeItemListener, removeNotify, setAction, setActionCommand, setBorderPainted, setContentAreaFilled, setDisabledIcon, setDisabledSelectedIcon, setDisplayedMnemonicIndex, setFocusPainted, setHideActionText, setHorizontalAlignment, setHorizontalTextPosition, setIcon, setIconTextGap, setLabel, setLayout, setMargin, setMnemonic, setMnemonic, setMultiClickThreshhold, setPressedIcon, setRolloverEnabled, setRolloverIcon, setRolloverSelectedIcon, setSelected, setSelectedIcon, setText, setUI, setVerticalAlignment, setVerticalTextPosition

从类 javax.swing.JComponent 继承的方法

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update

从类 java.awt.Container 继承的方法

add, add, add, add, add, addContainerListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, transferFocusBackward, transferFocusDownCycle, validate, validateTree

从类 java.awt.Component 继承的方法

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle

从类 java.lang.Object 继承的方法

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

构造方法详细信息

JRadioButtonMenuItem

public JRadioButtonMenuItem()

创建一个未设置文本或图标的 JRadioButtonMenuItem。

JRadioButtonMenuItem

public JRadioButtonMenuItem(Icon icon)

创建一个带图标的 JRadioButtonMenuItem。

参数：

icon - 将在 JRadioButtonMenuItem 上显示的 Icon。

JRadioButtonMenuItem

public JRadioButtonMenuItem(String text)

创建一个带文本的 JRadioButtonMenuItem。

参数：

text - JRadioButtonMenuItem 的文本

JRadioButtonMenuItem

public JRadioButtonMenuItem(Action a)

创建一个单选按钮菜单项，其属性来自提供的 Action。

参数：

a - 将基于其建立单选按钮菜单项的 Action

从以下版本开始：

1.3

JRadioButtonMenuItem

public JRadioButtonMenuItem(String text,
                            Icon icon)

创建一个具有指定文本和 Icon 的单选按钮菜单项。

参数：

text - JRadioButtonMenuItem 的文本

icon - 将在 JRadioButtonMenuItem 上显示的图标

JRadioButtonMenuItem

public JRadioButtonMenuItem(String text,
                            boolean selected)

创建一个具有指定文本和选择状态的单选按钮菜单项。

参数：

text - CheckBoxMenuItem 的文本

selected - CheckBoxMenuItem 的选择状态

JRadioButtonMenuItem

public JRadioButtonMenuItem(Icon icon,
                            boolean selected)

创建一个具有指定图像和选择状态的单选按钮菜单项，但无文本。

参数：

icon - 此按钮应显示的图像

selected - 如果为 true，按钮被初始化为选择；否则，按钮被初始化为未选择

JRadioButtonMenuItem

public JRadioButtonMenuItem(String text,
                            Icon icon,
                            boolean selected)

创建一个具有指定的文本、图像和选择状态的单选按钮菜单项。所有其他构造方法都隶属于此方法。

参数：

text - 此单选按钮上显示的字符串

icon - 此按钮应显示的图像

方法详细信息

getUIClassID

public String getUIClassID()

返回呈现此组件的 L&F 类的名称。

覆盖：

类 JMenuItem 中的 getUIClassID

返回：

"RadioButtonMenuItemUI" 字符串

另请参见：

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

paramString

protected String paramString()

返回此 JRadioButtonMenuItem 的字符串表示形式。此方法仅在进行调试的时候使用，对于各个实现，所返回字符串的内容和格式可能有所不同。返回的字符串可能为空，但不可能为 null。

覆盖：

类 JMenuItem 中的 paramString

返回：

此 JRadioButtonMenuItem 的字符串表示形式

getAccessibleContext

public AccessibleContext getAccessibleContext()

获取与此 JRadioButtonMenuItem 相关联的 AccessibleContext。对于 JRadioButtonMenuItem，AccessibleContext 采用 AccessibleJRadioButtonMenuItem 的形式。必要时创建新的 AccessibleJRadioButtonMenuItem 实例。

指定者：

接口 Accessible 中的 getAccessibleContext

覆盖：

类 JMenuItem 中的 getAccessibleContext

返回：

一个 AccessibleJRadioButtonMenuItem，它充当此 JRadioButtonMenuItem 的 AccessibleContext