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

一个单选按钮的实现，可以选择或取消选择一项，并显示其状态的用户。用一个 ButtonGroup对象创建一个按钮组中只有一个按钮一次可以选择。（创建一个按钮组对象和使用其 add方法包括在组，jradiobutton对象）

Note: The ButtonGroup object is a logical grouping -- not a physical grouping. To create 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.

按钮可配置，并在一定程度上控制，通过Actions。使用Action用按钮直接配置按钮之外的许多好处。参考 Swing Components Supporting Action更多细节，你可以在How to Use Actions找到更多信息，java教程中的一部分。

看到进一步的文件在java教程How to Use Buttons, Check Boxes, and Radio Buttons。

警告： Swing是线程不安全的。更多信息见Swing's Threading Policy。

警告：序列化该类的对象与以后的Swing版本不兼容。当前的序列化支持适用于短期贮藏或RMI运行相同Swing版本的应用程序之间。为1.4，为所有JavaBeans™长期存储的支持已被添加到java.beans包。请看XMLEncoder。

另请参见：

ButtonGroup， JCheckBox

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	JRadioButton.AccessibleJRadioButton 这个类实现了对 JRadioButton类可访问性支持。

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.BaselineResizeBehavior, 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

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

accessibleContext, 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

构造方法摘要

构造方法

Constructor and Description
JRadioButton() 创建一个最初选中的单选按钮没有设置文本。
JRadioButton(Action a) 创建一个单选按钮在属性是从行动提供。
JRadioButton(Icon icon) 创建一个最初选中的单选按钮以指定的图像而没有文字。
JRadioButton(Icon icon, boolean selected) 用指定的图像和选择状态创建一个广播按钮，但没有文本。
JRadioButton(String text) 创建一个具有指定文本选中的单选按钮。
JRadioButton(String text, boolean selected) 用指定的文本和选择状态创建一个广播按钮。
JRadioButton(String text, Icon icon) 创建一个单选按钮，指定的文本和图像，这是最初的选择。
JRadioButton(String text, Icon icon, boolean selected) 创建一个具有指定文本、图像和选择状态的广播按钮。

方法摘要

Modifier and Type	Method and Description
AccessibleContext	getAccessibleContext() 获取与此相关的accessiblecontext jradiobutton。
String	getUIClassID() 返回呈现此组件的“L”和“F”类的名称。
protected String	paramString() 返回该jradiobutton字符串表示形式。
void	updateUI() 重置UI属性从目前看价值和感觉。

Methods inherited from class javax.swing.AbstractButton

actionPropertyChanged, addActionListener, addChangeListener, addImpl, addItemListener, checkHorizontalKey, checkVerticalKey, configurePropertiesFromAction, 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, init, isBorderPainted, isContentAreaFilled, isFocusPainted, isRolloverEnabled, isSelected, paintBorder, removeActionListener, removeChangeListener, removeItemListener, removeNotify, setAction, setActionCommand, setBorderPainted, setContentAreaFilled, setDisabledIcon, setDisabledSelectedIcon, setDisplayedMnemonicIndex, setEnabled, setFocusPainted, setHideActionText, setHorizontalAlignment, setHorizontalTextPosition, setIcon, setIconTextGap, setLabel, setLayout, setMargin, setMnemonic, setMnemonic, setModel, setMultiClickThreshhold, setPressedIcon, setRolloverEnabled, setRolloverIcon, setRolloverSelectedIcon, setSelected, setSelectedIcon, setText, setUI, setVerticalAlignment, setVerticalTextPosition

Methods inherited from class javax.swing.JComponent

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, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, 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

Methods inherited from class java.awt.Container

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, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

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, 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, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Constructor Detail

JRadioButton

public JRadioButton()

创建一个最初选中的单选按钮没有设置文本。

JRadioButton

public JRadioButton(Icon icon)

创建一个最初选中的单选按钮以指定的图像而没有文字。

参数

icon，按钮要显示的图像

JRadioButton

public JRadioButton(Action a)

创建一个单选按钮在属性是从行动提供。

从以下版本开始：

一点三

JRadioButton

public JRadioButton(Icon icon,
                    boolean selected)

用指定的图像和选择状态创建一个广播按钮，但没有文本。

参数

icon，按钮要显示的图像

selected -如果是真的，按钮是最初选择；否则，按钮是最初的选择

JRadioButton

public JRadioButton(String text)

创建一个具有指定文本选中的单选按钮。

参数

text -显示在单选按钮的字符串

JRadioButton

public JRadioButton(String text,
                    boolean selected)

用指定的文本和选择状态创建一个广播按钮。

参数

text -显示在单选按钮的字符串

selected -如果是真的，按钮是最初选择；否则，按钮是最初的选择

JRadioButton

public JRadioButton(String text,
                    Icon icon)

创建一个单选按钮，指定的文本和图像，这是最初的选择。

参数

text -显示在单选按钮的字符串

icon，按钮要显示的图像

JRadioButton

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

创建一个具有指定文本、图像和选择状态的广播按钮。

参数

text -显示在单选按钮的字符串

icon，按钮要显示的图像

方法详细信息

updateUI

public void updateUI()

重置UI属性从目前看价值和感觉。

重写：

updateUI 方法重写，继承类 JToggleButton

另请参见：

JComponent.updateUI()

getUIClassID

public String getUIClassID()

返回呈现此组件的“L”和“F”类的名称。

重写：

getUIClassID 方法重写，继承类 JToggleButton

结果

字符串“radiobuttonui”

另请参见：

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

paramString

protected String paramString()

返回该jradiobutton字符串表示形式。此方法仅用于调试目的，返回的字符串的内容和格式可能会在实现过程中有所不同。返回的字符串是空的但可能不 null。

重写：

paramString 方法重写，继承类 JToggleButton

结果

这jradiobutton字符串表示形式。

getAccessibleContext

public AccessibleContext getAccessibleContext()

获取与此相关的accessiblecontext jradiobutton。JRadioButtons的accessiblecontext以一个accessiblejradiobutton形式。一个新的accessiblejradiobutton实例被创建时。

Specified by:

getAccessibleContext 接口 Accessible

重写：

getAccessibleContext 方法重写，继承类 JToggleButton

结果

一个accessiblejradiobutton作为本JRadioButton的accessiblecontext