Java javax.swing 类 JButton（JDK5）

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摘要： 嵌套 | 字段 | 构造方法 | 方法	详细信息： 字段 | 构造方法 | 方法

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javax.swing
类 JButton

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              javax.swing.AbstractButton
                  javax.swing.JButton

所有已实现的接口：

ImageObserver, ItemSelectable, MenuContainer, Serializable, Accessible, SwingConstants

直接已知子类：

BasicArrowButton, MetalComboBoxButton

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public class JButton
   
   
   
   
   
extends AbstractButton
   
   
   
   
   
   
   
   
   
   
implements Accessible
   
   
   
   
   

"push" 按钮的实现。有关使用按钮的更多信息和示例，请参阅《The Java Tutorial》中的 How to Use Buttons, Check Boxes, and Radio Buttons。

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。

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嵌套类摘要
protected  class	JButton.AccessibleJButton           此类实现对 JButton 类的可访问性支持。

 

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.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
JButton()           创建不带有设置文本或图标的按钮。
JButton(Action a)           创建一个按钮，其属性从所提供的 Action 中获取。
JButton(Icon icon)           创建一个带图标的按钮。
JButton(String text)           创建一个带文本的按钮。
JButton(String text, Icon icon)           创建一个带初始文本和图标的按钮。

 

方法摘要
protected  void	configurePropertiesFromAction(Action a)           该工厂方法根据 Action 实例中的值设置 AbstractButton 的属性。
AccessibleContext	getAccessibleContext()           获得与此 JButton 关联的 AccessibleContext。
String	getUIClassID()           返回指定呈现此组件的 L&F 类的类名，以字符串的形式。
boolean	isDefaultButton()           获得 defaultButton 属性的值，如果为 true 则意味着此按钮是其 JRootPane 的当前默认按钮。
boolean	isDefaultCapable()           获得 defaultCapable 属性的值。
protected  String	paramString()           返回此 JButton 的字符串表示形式。
void	removeNotify()           重写 JComponent.removeNotify 来检查此按钮当前是否被设置为 RootPane 上的默认按钮，如果是，则将 RootPane 的默认按钮设置为 null，以确保 RootPane 不继续停留在无效的按钮引用上。
void	setDefaultCapable(boolean defaultCapable)           设置 defaultCapable 属性，该属性确定此按钮是否可以是其根窗格的默认按钮。
void	updateUI()           根据当前外观的值重置 UI 属性。

 

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, 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, setAction, setActionCommand, setBorderPainted, setContentAreaFilled, setDisabledIcon, setDisabledSelectedIcon, setDisplayedMnemonicIndex, setEnabled, setFocusPainted, setHorizontalAlignment, setHorizontalTextPosition, setIcon, setIconTextGap, setLabel, setLayout, setMargin, setMnemonic, setMnemonic, setModel, 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, 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, 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

JButton

public JButton()

创建不带有设置文本或图标的按钮。

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JButton

public JButton(Icon icon)

创建一个带图标的按钮。

参数：

icon - 显示在按钮上的 Icon 图像

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JButton

public JButton(String text)

创建一个带文本的按钮。

参数：

text - 按钮的文本

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JButton

public JButton(Action a)

创建一个按钮，其属性从所提供的 Action 中获取。

参数：

a - 用于指定新按钮的 Action

从以下版本开始：

1.3

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JButton

public JButton(String text,
               Icon icon)

创建一个带初始文本和图标的按钮。

参数：

text - 按钮的文本

icon - 显示在按钮上的 Icon 图像

方法详细信息

updateUI

public void updateUI()

根据当前外观的值重置 UI 属性。

覆盖：

类 AbstractButton 中的 updateUI

另请参见：

JComponent.updateUI()

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getUIClassID

public String getUIClassID()

返回指定呈现此组件的 L&F 类的类名，以字符串的形式。

覆盖：

类 JComponent 中的 getUIClassID

返回：

字符串 "ButtonUI"

另请参见：

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

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isDefaultButton

public boolean isDefaultButton()

获得 defaultButton 属性的值，如果为 true 则意味着此按钮是其 JRootPane 的当前默认按钮。大多数外观渲染器的默认按钮都是不同的，并且可能提供对访问默认按钮的绑定。

返回：

defaultButton 属性的值

另请参见：

JRootPane.setDefaultButton(javax.swing.JButton), isDefaultCapable()