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javax.swing
Class JLabel

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              javax.swing.JLabel

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Accessible, SwingConstants

Direct Known Subclasses:

BasicComboBoxRenderer, DefaultListCellRenderer, DefaultTableCellRenderer, DefaultTreeCellRenderer

public class JLabel
extends JComponent
implements SwingConstants, Accessible

A display area for a short text string or an image, or both. A label does not react to input events. As a result, it cannot get the keyboard focus. A label can, however, display a keyboard alternative as a convenience for a nearby component that has a keyboard alternative but can't display it.

A JLabel object can display either text, an image, or both. You can specify where in the label's display area the label's contents are aligned by setting the vertical and horizontal alignment. By default, labels are vertically centered in their display area. Text-only labels are leading edge aligned, by default; image-only labels are horizontally centered, by default.

You can also specify the position of the text relative to the image. By default, text is on the trailing edge of the image, with the text and image vertically aligned.

A label's leading and trailing edge are determined from the value of its ComponentOrientation property. At present, the default ComponentOrientation setting maps the leading edge to left and the trailing edge to right.

Finally, you can use the setIconTextGap method to specify how many pixels should appear between the text and the image. The default is 4 pixels.

See How to Use Labels in The Java Tutorial for further documentation.

Warning: Swing is not thread safe. For more information see Swing's Threading Policy.

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. As of 1.4, support for long term storage of all JavaBeans^TM has been added to the java.beans package. Please see XMLEncoder.

Nested Class Summary

Modifier and Type	Class and Description
protected class	JLabel.AccessibleJLabel The class used to obtain the accessible role for this object.

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

Modifier and Type	Field and Description
protected Component	labelFor

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

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

Constructor and Description

JLabel()
Creates a JLabel instance with no image and with an empty string for the title.

JLabel(Icon image)
Creates a JLabel instance with the specified image.

JLabel(Icon image, int horizontalAlignment)
Creates a JLabel instance with the specified image and horizontal alignment.

JLabel(String text)
Creates a JLabel instance with the specified text.

JLabel(String text, Icon icon, int horizontalAlignment)
Creates a JLabel instance with the specified text, image, and horizontal alignment.

JLabel(String text, int horizontalAlignment)
Creates a JLabel instance with the specified text and horizontal alignment.

Method Summary

Modifier and Type	Method and Description
protected int	checkHorizontalKey(int key, String message) Verify that key is a legal value for the horizontalAlignment properties.
protected int	checkVerticalKey(int key, String message) Verify that key is a legal value for the verticalAlignment or verticalTextPosition properties.
AccessibleContext	getAccessibleContext() Get the AccessibleContext of this object
Icon	getDisabledIcon() Returns the icon used by the label when it's disabled.
int	getDisplayedMnemonic() Return the keycode that indicates a mnemonic key.
int	getDisplayedMnemonicIndex() Returns the character, as an index, that the look and feel should provide decoration for as representing the mnemonic character.
int	getHorizontalAlignment() Returns the alignment of the label's contents along the X axis.
int	getHorizontalTextPosition() Returns the horizontal position of the label's text, relative to its image.
Icon	getIcon() Returns the graphic image (glyph, icon) that the label displays.
int	getIconTextGap() Returns the amount of space between the text and the icon displayed in this label.
Component	getLabelFor() Get the component this is labelling.
String	getText() Returns the text string that the label displays.
LabelUI	getUI() Returns the L&F object that renders this component.
String	getUIClassID() Returns a string that specifies the name of the l&f class that renders this component.
int	getVerticalAlignment() Returns the alignment of the label's contents along the Y axis.
int	getVerticalTextPosition() Returns the vertical position of the label's text, relative to its image.
boolean	imageUpdate(Image img, int infoflags, int x, int y, int w, int h) This is overridden to return false if the current Icon's Image is not equal to the passed in Image img.
protected String	paramString() Returns a string representation of this JLabel.
void	setDisabledIcon(Icon disabledIcon) Set the icon to be displayed if this JLabel is "disabled" (JLabel.setEnabled(false)).
void	setDisplayedMnemonic(char aChar) Specifies the displayedMnemonic as a char value.
void	setDisplayedMnemonic(int key) Specify a keycode that indicates a mnemonic key.
void	setDisplayedMnemonicIndex(int index) Provides a hint to the look and feel as to which character in the text should be decorated to represent the mnemonic.
void	setHorizontalAlignment(int alignment) Sets the alignment of the label's contents along the X axis.
void	setHorizontalTextPosition(int textPosition) Sets the horizontal position of the label's text, relative to its image.
void	setIcon(Icon icon) Defines the icon this component will display.
void	setIconTextGap(int iconTextGap) If both the icon and text properties are set, this property defines the space between them.
void	setLabelFor(Component c) Set the component this is labelling.
void	setText(String text) Defines the single line of text this component will display.
void	setUI(LabelUI ui) Sets the L&F object that renders this component.
void	setVerticalAlignment(int alignment) Sets the alignment of the label's contents along the Y axis.
void	setVerticalTextPosition(int textPosition) Sets the vertical position of the label's text, relative to its image.
void	updateUI() Resets the UI property to a value from the current look and feel.

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, 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, 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, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Field Detail

labelFor

protected Component labelFor

Constructor Detail

JLabel

public JLabel(String text,
              Icon icon,
              int horizontalAlignment)

Creates a JLabel instance with the specified text, image, and horizontal alignment. The label is centered vertically in its display area. The text is on the trailing edge of the image.

Parameters:

text - The text to be displayed by the label.

icon - The image to be displayed by the label.

horizontalAlignment - One of the following constants defined in SwingConstants: LEFT, CENTER, RIGHT, LEADING or TRAILING.

JLabel

public JLabel(String text,
              int horizontalAlignment)

Creates a JLabel instance with the specified text and horizontal alignment. The label is centered vertically in its display area.

Parameters:

text - The text to be displayed by the label.

horizontalAlignment - One of the following constants defined in SwingConstants: LEFT, CENTER, RIGHT, LEADING or TRAILING.

JLabel

public JLabel(String text)

Creates a JLabel instance with the specified text. The label is aligned against the leading edge of its display area, and centered vertically.

Parameters:

text - The text to be displayed by the label.

JLabel

public JLabel(Icon image,
              int horizontalAlignment)

Creates a JLabel instance with the specified image and horizontal alignment. The label is centered vertically in its display area.

Parameters:

image - The image to be displayed by the label.

horizontalAlignment - One of the following constants defined in SwingConstants: LEFT, CENTER, RIGHT, LEADING or TRAILING.

JLabel

public JLabel(Icon image)

Creates a JLabel instance with the specified image. The label is centered vertically and horizontally in its display area.

Parameters:

image - The image to be displayed by the label.

JLabel

public JLabel()

Creates a JLabel instance with no image and with an empty string for the title. The label is centered vertically in its display area. The label's contents, once set, will be displayed on the leading edge of the label's display area.

Method Detail

getUI

public LabelUI getUI()

Returns the L&F object that renders this component.

Returns:

LabelUI object

setUI

public void setUI(LabelUI ui)

Sets the L&F object that renders this component.

Parameters:

ui - the LabelUI L&F object

See Also:

UIDefaults.getUI(javax.swing.JComponent)

updateUI

public void updateUI()

Resets the UI property to a value from the current look and feel.

Overrides:

updateUI in class JComponent

See Also:

JComponent.updateUI()

getUIClassID

public String getUIClassID()

Returns a string that specifies the name of the l&f class that renders this component.

Overrides:

getUIClassID in class JComponent

Returns:

String "LabelUI"

See Also:

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

getText

public String getText()

Returns the text string that the label displays.

Returns:

a String

See Also:

setText(java.lang.String)

setText

public void setText(String text)

Defines the single line of text this component will display. If the value of text is null or empty string, nothing is displayed.

The default value of this property is null.

This is a JavaBeans bound property.

See Also:

setVerticalTextPosition(int), setHorizontalTextPosition(int), setIcon(javax.swing.Icon)

getIcon

public Icon getIcon()

Returns the graphic image (glyph, icon) that the label displays.

Returns:

an Icon

See Also:

setIcon(javax.swing.Icon)

setIcon

public void setIcon(Icon icon)

Defines the icon this component will display. If the value of icon is null, nothing is displayed.

The default value of this property is null.

This is a JavaBeans bound property.

See Also:

setVerticalTextPosition(int), setHorizontalTextPosition(int), getIcon()

getDisabledIcon

public Icon getDisabledIcon()

Returns the icon used by the label when it's disabled. If no disabled icon has been set this will forward the call to the look and feel to construct an appropriate disabled Icon.

Some look and feels might not render the disabled Icon, in which case they will ignore this.

Returns:

the disabledIcon property

See Also:

setDisabledIcon(javax.swing.Icon), LookAndFeel.getDisabledIcon(javax.swing.JComponent, javax.swing.Icon), ImageIcon

setDisabledIcon

public void setDisabledIcon(Icon disabledIcon)

Set the icon to be displayed if this JLabel is "disabled" (JLabel.setEnabled(false)).

The default value of this property is null.

Parameters:

disabledIcon - the Icon to display when the component is disabled

See Also:

getDisabledIcon(), JComponent.setEnabled(boolean)

setDisplayedMnemonic

public void setDisplayedMnemonic(int key)

Specify a keycode that indicates a mnemonic key. This property is used when the label is part of a larger component. If the labelFor property of the label is not null, the label will call the requestFocus method of the component specified by the labelFor property when the mnemonic is activated.

See Also:

getLabelFor(), setLabelFor(java.awt.Component)

setDisplayedMnemonic

public void setDisplayedMnemonic(char aChar)

Specifies the displayedMnemonic as a char value.

Parameters:

aChar - a char specifying the mnemonic to display

See Also:

setDisplayedMnemonic(int)

getDisplayedMnemonic

public int getDisplayedMnemonic()

Return the keycode that indicates a mnemonic key. This property is used when the label is part of a larger component. If the labelFor property of the label is not null, the label will call the requestFocus method of the component specified by the labelFor property when the mnemonic is activated.

Returns:

int value for the mnemonic key

See Also:

getLabelFor(), setLabelFor(java.awt.Component)

setDisplayedMnemonicIndex

public void setDisplayedMnemonicIndex(int index)
                               throws IllegalArgumentException

Provides a hint to the look and feel as to which character in the text should be decorated to represent the mnemonic. Not all look and feels may support this. A value of -1 indicates either there is no mnemonic, the mnemonic character is not contained in the string, or the developer does not wish the mnemonic to be displayed.

The value of this is updated as the properties relating to the mnemonic change (such as the mnemonic itself, the text...). You should only ever have to call this if you do not wish the default character to be underlined. For example, if the text was 'Save As', with a mnemonic of 'a', and you wanted the 'A' to be decorated, as 'Save As', you would have to invoke setDisplayedMnemonicIndex(5) after invoking setDisplayedMnemonic(KeyEvent.VK_A).

Parameters:

index - Index into the String to underline

Throws:

IllegalArgumentException - will be thrown if index= length of the text, or < -1

Since:

1.4

getDisplayedMnemonicIndex

public int getDisplayedMnemonicIndex()

Returns the character, as an index, that the look and feel should provide decoration for as representing the mnemonic character.

Returns:

index representing mnemonic character

Since:

1.4

See Also:

setDisplayedMnemonicIndex(int)

checkHorizontalKey

protected int checkHorizontalKey(int key,
                                 String message)

Verify that key is a legal value for the horizontalAlignment properties.

Parameters:

key - the property value to check

message - the IllegalArgumentException detail message

Throws:

IllegalArgumentException - if key isn't LEFT, CENTER, RIGHT, LEADING or TRAILING.

See Also:

setHorizontalTextPosition(int), setHorizontalAlignment(int)

checkVerticalKey

protected int checkVerticalKey(int key,
                               String message)

Verify that key is a legal value for the verticalAlignment or verticalTextPosition properties.

Parameters:

key - the property value to check

message - the IllegalArgumentException detail message

Throws:

IllegalArgumentException - if key isn't TOP, CENTER, or BOTTOM.

See Also:

setVerticalAlignment(int), setVerticalTextPosition(int)

getIconTextGap

public int getIconTextGap()

Returns the amount of space between the text and the icon displayed in this label.

Returns:

an int equal to the number of pixels between the text and the icon.

See Also:

setIconTextGap(int)

setIconTextGap

public void setIconTextGap(int iconTextGap)

If both the icon and text properties are set, this property defines the space between them.

The default value of this property is 4 pixels.

This is a JavaBeans bound property.

See Also:

getIconTextGap()

getVerticalAlignment

public int getVerticalAlignment()

Returns the alignment of the label's contents along the Y axis.

Returns:

The value of the verticalAlignment property, one of the following constants defined in SwingConstants: TOP, CENTER, or BOTTOM.

See Also:

SwingConstants, setVerticalAlignment(int)

setVerticalAlignment

public void setVerticalAlignment(int alignment)

Sets the alignment of the label's contents along the Y axis.

The default value of this property is CENTER.

Parameters:

alignment - One of the following constants defined in SwingConstants: TOP, CENTER (the default), or BOTTOM.

See Also:

SwingConstants, getVerticalAlignment()

getHorizontalAlignment

public int getHorizontalAlignment()

Returns the alignment of the label's contents along the X axis.

Returns:

The value of the horizontalAlignment property, one of the following constants defined in SwingConstants: LEFT, CENTER, RIGHT, LEADING or TRAILING.

See Also:

setHorizontalAlignment(int), SwingConstants

setHorizontalAlignment

public void setHorizontalAlignment(int alignment)

Sets the alignment of the label's contents along the X axis.

This is a JavaBeans bound property.

Parameters:

alignment - One of the following constants defined in SwingConstants: LEFT, CENTER (the default for image-only labels), RIGHT, LEADING (the default for text-only labels) or TRAILING.

See Also:

SwingConstants, getHorizontalAlignment()

getVerticalTextPosition

public int getVerticalTextPosition()

Returns the vertical position of the label's text, relative to its image.

Returns:

One of the following constants defined in SwingConstants: TOP, CENTER, or BOTTOM.

See Also:

setVerticalTextPosition(int), SwingConstants

setVerticalTextPosition

public void setVerticalTextPosition(int textPosition)

Sets the vertical position of the label's text, relative to its image.

The default value of this property is CENTER.

This is a JavaBeans bound property.

Parameters:

textPosition - One of the following constants defined in SwingConstants: TOP, CENTER (the default), or BOTTOM.

See Also:

SwingConstants, getVerticalTextPosition()

getHorizontalTextPosition

public int getHorizontalTextPosition()

Returns the horizontal position of the label's text, relative to its image.

Returns:

One of the following constants defined in SwingConstants: LEFT, CENTER, RIGHT, LEADING or TRAILING.

See Also:

SwingConstants

setHorizontalTextPosition

public void setHorizontalTextPosition(int textPosition)

Sets the horizontal position of the label's text, relative to its image.

Parameters:

textPosition - One of the following constants defined in SwingConstants: LEFT, CENTER, RIGHT, LEADING, or TRAILING (the default).

Throws:

IllegalArgumentException

See Also:

SwingConstants

imageUpdate

public boolean imageUpdate(Image img,
                           int infoflags,
                           int x,
                           int y,
                           int w,
                           int h)

This is overridden to return false if the current Icon's Image is not equal to the passed in Image img.

Specified by:

imageUpdate in interface ImageObserver

Overrides:

imageUpdate in class Component

Parameters:

img - the image being observed

infoflags - see imageUpdate for more information

x - the x coordinate

y - the y coordinate

w - the width

h - the height

Returns:

false if the infoflags indicate that the image is completely loaded; true otherwise.

See Also:

ImageObserver, Component.imageUpdate(java.awt.Image, int, int, int, int, int)

paramString

protected String paramString()

Returns a string representation of this JLabel. 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 JComponent

Returns:

a string representation of this JLabel.

getLabelFor

public Component getLabelFor()

Get the component this is labelling.

Returns:

the Component this is labelling. Can be null if this does not label a Component. If the displayedMnemonic property is set and the labelFor property is also set, the label will call the requestFocus method of the component specified by the labelFor property when the mnemonic is activated.

See Also:

getDisplayedMnemonic(), setDisplayedMnemonic(int)

setLabelFor

public void setLabelFor(Component c)

Set the component this is labelling. Can be null if this does not label a Component. If the displayedMnemonic property is set and the labelFor property is also set, the label will call the requestFocus method of the component specified by the labelFor property when the mnemonic is activated.

Parameters:

c - the Component this label is for, or null if the label is not the label for a component

See Also:

getDisplayedMnemonic(), setDisplayedMnemonic(int)

getAccessibleContext

public AccessibleContext getAccessibleContext()

Get the AccessibleContext of this object

Specified by:

getAccessibleContext in interface Accessible

Overrides:

getAccessibleContext in class JComponent

Returns:

the AccessibleContext of this object