JToolTip (Java Platform SE 8 )

java.lang.Object
- java.awt.Component
- - java.awt.Container
  - - javax.swing.JComponent
    - - javax.swing.JToolTip

All Implemented Interfaces:

ImageObserver ， MenuContainer ， Serializable ， Accessible
```
public class JToolTip
extends JComponent
implements Accessible
```
用于显示组件的“提示”。通常组件提供api来自动化使用ToolTip的过程。例如，任何Swing组件都可以使用JComponent setToolTipText方法来指定标准工具提示的文本。要创建自定义ToolTip显示的ToolTip可以覆盖JComponent的createToolTip方法并使用此类的子类。
有关更多文档，请参阅Java教程中的How to Use Tool Tips。

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将来的Swing版本不兼容。当前的序列化支持适用于运行相同版本的Swing的应用程序之间的短期存储或RMI。从1.4开始，对所有JavaBeans的长期存储的支持已经添加到java.beans包中。请参阅XMLEncoder 。

另请参见：

JComponent.setToolTipText(java.lang.String) ， JComponent.createToolTip()

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`protected class`	`JToolTip.AccessibleJToolTip` 这个类实现了可访问性支持 `JToolTip`类。

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
  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 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
`JToolTip()` 创建工具提示。

方法摘要

所有方法接口方法具体的方法
Modifier and Type	Method and Description
`AccessibleContext`	`getAccessibleContext()` 获取与此JToolTip关联的AccessibleContext。
`JComponent`	`getComponent()` 返回工具提示应用于的组件。
`String`	`getTipText()` 返回显示工具提示时显示的文本。
`ToolTipUI`	`getUI()` 返回渲染此组件的L＆F对象。
`String`	`getUIClassID()` 返回呈现此组件的L＆F类的名称。
`protected String`	`paramString()` 返回此 `JToolTip`的字符串表示 `JToolTip` 。
`void`	`setComponent(JComponent c)` 指定工具提示描述的组件。
`void`	`setTipText(String tipText)` 设置显示工具提示时显示的文本。
`void`	`updateUI()` 将UI属性重置为当前外观的值。

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, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, 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, addImpl, 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, setLayout, 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, imageUpdate, 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

- 构造方法详细信息
  - JToolTip
```
public JToolTip()
```
    创建工具提示。
- 方法详细信息
  - getUI
```
public ToolTipUI getUI()
```
    返回渲染此组件的L＆F对象。
    
    结果
    
    呈现此组件的 ToolTipUI对象
  - updateUI
```
public void updateUI()
```
    将UI属性重置为当前外观的值。
    
    重写：
    
    updateUI在 JComponent
    
    另请参见：
    
    JComponent.updateUI()
  - getUIClassID
```
public String getUIClassID()
```
    返回呈现此组件的L＆F类的名称。
    
    重写：
    
    getUIClassID在 JComponent类
    
    结果
    
    字符串“ToolTipUI”
    
    另请参见：
    
    JComponent.getUIClassID() ， UIDefaults.getUI(javax.swing.JComponent)
  - setTipText
```
public void setTipText(String tipText)
```
    设置显示工具提示时显示的文本。字符串tipText可以是null 。
    
    参数
    
    tipText - 要显示的 String
  - getTipText
```
public String getTipText()
```
    返回显示工具提示时显示的文本。返回值可能为null 。
    
    结果
    
    该 String所显示
  - setComponent
```
public void setComponent(JComponent c)
```
    指定工具提示描述的组件。组件c可以是null并且将不起作用。
    这是一个绑定属性。
    
    参数
    
    c -所述 JComponent被描述
    
    另请参见：
    
    JComponent.createToolTip()
  - getComponent
```
public JComponent getComponent()
```
    返回工具提示应用于的组件。返回值可能为null 。
    
    结果
    
    工具提示描述的组件
    
    另请参见：
    
    JComponent.createToolTip()
  - paramString
```
protected String paramString()
```
    返回此JToolTip的字符串表示JToolTip 。该方法仅用于调试目的，并且返回的字符串的内容和格式可能因实现而异。返回的字符串可能为空，但可能不是null 。
    
    重写：
    
    paramString在 JComponent类
    
    结果
    
    这个 JToolTip的字符串表示 JToolTip
  - getAccessibleContext
```
public AccessibleContext getAccessibleContext()
```
    获取与此JToolTip关联的AccessibleContext。对于工具提示，AccessibleContext采用AccessibleJToolTip的形式。如有必要，将创建一个新的AccessibleJToolTip实例。
    
    Specified by:
    
    getAccessibleContext在接口 Accessible
    
    重写：
    
    getAccessibleContext在 Component
    
    结果
    
    一个AccessibleJToolTip作为这个JToolTip的AccessibleContext

Class JToolTip

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JComponent

Nested classes/interfaces inherited from class java.awt.Container

Nested classes/interfaces inherited from class java.awt.Component

Field Summary

Fields inherited from class javax.swing.JComponent

Fields inherited from class java.awt.Component

Fields inherited from interface java.awt.image.ImageObserver

构造方法摘要

方法摘要

Methods inherited from class javax.swing.JComponent

Methods inherited from class java.awt.Container

Methods inherited from class java.awt.Component

Methods inherited from class java.lang.Object

构造方法详细信息

JToolTip

方法详细信息

getUI

updateUI

getUIClassID

setTipText

getTipText

setComponent

getComponent

paramString

getAccessibleContext