javax.swing
Class JComponent

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--javax.swing.JComponent

All Implemented Interfaces:

java.awt.image.ImageObserver, MenuContainer, Serializable

Direct Known Subclasses:

AbstractButton, Box, javax.swing.Box.Filler, JColorChooser, JComboBox, javax.swing.JInternalFrame.JDesktopIcon, JFileChooser, JInternalFrame, JLabel, JLayeredPane, JList, JMenuBar, JOptionPane, JPanel, JPopupMenu, JProgressBar, JRootPane, JScrollBar, JScrollPane, JSeparator, JSlider, JSpinner, JSplitPane, JTabbedPane, JTable, JTextComponent, JToolBar, JToolTip, JTree, JViewport

public abstract class JComponent

extends Container

implements Serializable

Safe: The base class for all Swing components except top-level containers. To use a component that inherits from JComponent, you must place the component in a containment hierarchy whose root is a top-level Swing container. Top-level Swing containers -- such as JFrame, JDialog, and JApplet -- are specialized components that provide a place for other Swing components to paint themselves. For an explanation of containment hierarchies, see Swing Components and the Containment Hierarchy, a section in The Java Tutorial.

The JComponent class provides:

• The base class for both standard and custom components that use the Swing architecture.
• A "pluggable look and feel" (L&F) that can be specified by the programmer or (optionally) selected by the user at runtime. The look and feel for each component is provided by a UI delegate -- an object that descends from javax.swing.plaf.ComponentUI. See How to Set the Look and Feel in The Java Tutorial for more information.
• Comprehensive keystroke handling. See the document Keyboard Bindings in Swing, an article in The Swing Connection, for more information.
• Support for tool tips -- short descriptions that pop up when the cursor lingers over a component. See How to Use Tool Tips in The Java Tutorial for more information.
• Support for accessibility. JComponent contains all of the methods in the Accessible interface, but it doesn't actually implement the interface. That is the responsibility of the individual classes that extend JComponent.
• Support for component-specific properties. With the putClientProperty(java.lang.Object, java.lang.Object) and getClientProperty(java.lang.Object) methods, you can associate name-object pairs with any object that descends from JComponent.
• An infrastructure for painting that includes double buffering and support for borders. For more information see Painting and How to Use Borders, both of which are sections in The Java Tutorial.

For more information on these subjects, see the Swing package description and The Java Tutorial section The JComponent Class.

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 java.beans.XMLEncoder.

Version:

2.130 07/09/99

Author:

Hans Muller, Arnaud Weber

See Also:

KeyStroke, Action, setBorder(javax.swing.border.Border), registerKeyboardAction(java.awt.event.ActionListener, java.lang.String, javax.swing.KeyStroke, int), JOptionPane, setDebugGraphicsOptions(int), setToolTipText(java.lang.String), setAutoscrolls(boolean), Serialized Form

Field Summary

(package private) Rectangle	_bounds
protected AccessibleContext	accessibleContext The AccessibleContext associated with this JComponent.
private ActionMap	actionMap ActionMap.
private static int	ACTIONMAP_CREATED
private Float	alignmentX
private Float	alignmentY
private static int	ANCESTOR_INPUTMAP_CREATED
private static int	ANCESTOR_USING_BUFFER
private InputMap	ancestorInputMap Used for WHEN_ANCESTOR_OF_FOCUSED_COMPONENT bindings.
private AncestorNotifier	ancestorNotifier
private Autoscroller	autoscroller
private javax.swing.border.Border	border
private SwingPropertyChangeSupport	changeSupport
private static boolean	checkedSuppressDropSupport Indiciates if we've checked the system property for suppressing drop support.
private Hashtable	clientProperties
private static int	COMPLETELY_OBSCURED
private static int	CREATED_DOUBLE_BUFFER
private static int	CREATED_VOLATILE_DOUBLE_BUFFER
private static String	defaultLocale Key used to store the default locale in an AppContext
private int	flags
private static int	FOCUS_INPUTMAP_CREATED
private InputMap	focusInputMap Used for WHEN_FOCUSED bindings.
private static String	htmlKey
private Object	htmlView
private InputVerifier	inputVerifier
private static int	IS_DOUBLE_BUFFERED Private flags
private static int	IS_OPAQUE
private static int	IS_PAINTING_TILE
private static int	IS_PRINTING
private static int	IS_PRINTING_ALL
private static int	IS_REPAINTING
private static int	KEY_EVENTS_ENABLED
private static String	KEYBOARD_BINDINGS_KEY The key used by JComponent to access keyboard bindings.
protected EventListenerList	listenerList A list of event listeners for this component.
private static Set	managingFocusBackwardTraversalKeys Keys to use for backward focus traversal when the JComponent is managing focus.
private static Set	managingFocusForwardTraversalKeys Keys to use for forward focus traversal when the JComponent is managing focus.
private Dimension	maximumSize
private Dimension	minimumSize
private static String	NEXT_FOCUS
private static int	NOT_OBSCURED
private Rectangle	paintImmediatelyClip
(package private) Component	paintingChild Set in _paintImmediately.
private static int	PARTIALLY_OBSCURED
private Dimension	preferredSize
private static Hashtable	readObjectCallbacks
private static int	REQUEST_FOCUS_DISABLED
private static int	RESERVED_1
private static int	RESERVED_2
private static int	RESERVED_3
private static int	RESERVED_4
private static int	RESERVED_5
private static int	RESERVED_6
private static boolean	suppressDropSupport Indicates if we should register a DropTarget for a non-null TransferHandler.
private Rectangle	tmpRect
static String	TOOL_TIP_TEXT_KEY Suppressed: The comment to display when the cursor is over the component, also known as a "value tip", "flyover help", or "flyover label".
private TransferHandler	transfer
protected javax.swing.plaf.ComponentUI	ui The look and feel delegate for this component.
private static String	uiClassID
static int	UNDEFINED_CONDITION Enabled: Constant used by some of the APIs to mean that no condition is defined.
private boolean	verifyInputWhenFocusTarget
private java.beans.VetoableChangeSupport	vetoableChangeSupport
static int	WHEN_ANCESTOR_OF_FOCUSED_COMPONENT Enabled: Constant used for registerKeyboardAction that means that the command should be invoked when the receiving component is an ancestor of the focused component or is itself the focused component.
static int	WHEN_FOCUSED Enabled: Constant used for registerKeyboardAction that means that the command should be invoked when the component has the focus.
static int	WHEN_IN_FOCUSED_WINDOW Enabled: Constant used for registerKeyboardAction that means that the command should be invoked when the receiving component is in the window that has the focus or is itself the focused component.
private static String	WHEN_IN_FOCUSED_WINDOW_BINDINGS An array of KeyStrokes used for WHEN_IN_FOCUSED_WINDOW are stashed in the client properties under this string.
private static int	WIF_INPUTMAP_CREATED
private ComponentInputMap	windowInputMap Used for WHEN_IN_FOCUSED_KEY bindings.
private static int	WRITE_OBJ_COUNTER_FIRST Bits 14-21 are used to handle nested writeObject calls.
private static int	WRITE_OBJ_COUNTER_LAST

Fields inherited from class java.awt.Container

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Constructor Summary

JComponent()
Enabled: Default JComponent constructor.

Method Summary

(package private) void	_paintImmediately(int x, int y, int w, int h)
void	addAncestorListener(AncestorListener listener) Suppressed: Registers listener so that it will receive AncestorEvents when it or any of its ancestors move or are made visible or invisible.
void	addNotify() Suppressed: Notifies this component that it now has a parent component.
void	addPropertyChangeListener(java.beans.PropertyChangeListener listener) Suppressed: Adds a PropertyChangeListener to the listener list.
void	addPropertyChangeListener(String propertyName, java.beans.PropertyChangeListener listener) Suppressed: Adds a PropertyChangeListener for a specific property.
void	addVetoableChangeListener(java.beans.VetoableChangeListener listener) Suppressed: Adds a VetoableChangeListener to the listener list.
private void	adjustPaintFlags()
(package private) boolean	alwaysOnTop() Returns whether this component should be guaranteed to be on top.
(package private) boolean	checkIfChildObscuredBySibling() Returns true, which implies that before checking if a child should be painted it is first check that the child is not obscured by another sibling.
(package private) void	componentInputMapChanged(ComponentInputMap inputMap) Invoked from ComponentInputMap when its bindings change.
(package private) static void	computeVisibleRect(Component c, Rectangle visibleRect) Returns the Component's "visible rect rectangle" - the intersection of the visible rectangles for the component c and all of its ancestors.
void	computeVisibleRect(Rectangle visibleRect) Suppressed: Returns the Component's "visible rect rectangle" - the intersection of the visible rectangles for this component and all of its ancestors.
(package private) void	compWriteObjectNotify()
boolean	contains(int x, int y) Enabled: Gives the UI delegate an opportunity to define the precise shape of this component for the sake of mouse processing.
JToolTip	createToolTip() Suppressed: Returns the instance of JToolTip that should be used to display the tooltip.
private void	deregisterNextFocusableComponent()
void	disable() Suppressed: @deprecated As of JDK version 1.1, replaced by java.awt.Component.setEnable(boolean).
void	enable() Suppressed: @deprecated As of JDK version 1.1, replaced by java.awt.Component.setEnable(boolean).
(package private) void	enableSerialization() Called by the JComponent constructor.
void	firePropertyChange(String propertyName, boolean oldValue, boolean newValue) Suppressed: Reports a bound property change.
void	firePropertyChange(String propertyName, byte oldValue, byte newValue) Suppressed: Reports a bound property change.
void	firePropertyChange(String propertyName, char oldValue, char newValue) Suppressed: Reports a bound property change.
void	firePropertyChange(String propertyName, double oldValue, double newValue) Suppressed: Reports a bound property change.
void	firePropertyChange(String propertyName, float oldValue, float newValue) Suppressed: Reports a bound property change.
void	firePropertyChange(String propertyName, int oldValue, int newValue) Suppressed: Reports a bound property change.
void	firePropertyChange(String propertyName, long oldValue, long newValue) Suppressed: Reports a bound property change.
protected void	firePropertyChange(String propertyName, Object oldValue, Object newValue) Supports reporting bound property changes.
void	firePropertyChange(String propertyName, short oldValue, short newValue) Suppressed: Reports a bound property change.
protected void	fireVetoableChange(String propertyName, Object oldValue, Object newValue) Supports reporting constrained property changes.
AccessibleContext	getAccessibleContext() Suppressed: Returns the AccessibleContext associated with this JComponent.
ActionListener	getActionForKeyStroke(KeyStroke aKeyStroke) Suppressed: Returns the object that will perform the action registered for a given keystroke.
ActionMap	getActionMap() Suppressed: Returns the ActionMap used to determine what Action to fire for particular KeyStroke binding.
(package private) ActionMap	getActionMap(boolean create) Finds and returns the appropriate ActionMap.
float	getAlignmentX() Enabled: Overrides Container.getAlignmentX to return the vertical alignment.
float	getAlignmentY() Enabled: Overrides Container.getAlignmentY to return the horizontal alignment.
AncestorListener[]	getAncestorListeners() Suppressed: Returns an array of all the ancestor listeners registered on this component.
boolean	getAutoscrolls() Suppressed: Gets the autoscrolls property.
javax.swing.border.Border	getBorder() Enabled: Returns the border of this component or null if no border is currently set.
Rectangle	getBounds(Rectangle rv) Enabled: Stores the bounds of this component into "return value" rv and returns rv.
private Dictionary	getClientProperties() Returns a HashTable containing all of the key/value "client properties" for this component.
Object	getClientProperty(Object key) Suppressed: Returns the value of the property with the specified key.
protected Graphics	getComponentGraphics(Graphics g) Returns the graphics object used to paint this component.
int	getConditionForKeyStroke(KeyStroke aKeyStroke) Suppressed: Returns the condition that determines whether a registered action occurs in response to the specified keystroke.
(package private) boolean	getCreatedDoubleBuffer(boolean volatileImage) Returns true if the RepaintManager created the double buffer image from the component.
int	getDebugGraphicsOptions() Suppressed: Returns the state of graphics debugging.
static Locale	getDefaultLocale() Suppressed: Returns the default locale used to initialize each JComponent's locale property upon creation.
private boolean	getFlag(int aFlag)
Graphics	getGraphics() Suppressed: Returns this component's graphics context, which lets you draw on a component.
int	getHeight() Enabled: Returns the current height of this component.
InputMap	getInputMap() Suppressed: Returns the InputMap that is used when the component has focus.
InputMap	getInputMap(int condition) Suppressed: Returns the InputMap that is used during condition.
(package private) InputMap	getInputMap(int condition, boolean create) Returns the InputMap to use for condition condition.
InputVerifier	getInputVerifier() Suppressed: Returns the input verifier for this component.
Insets	getInsets() Enabled: If a border has been set on this component, returns the border's insets; otherwise calls super.getInsets.
Insets	getInsets(Insets insets) Enabled: Returns an Insets object containing this component's inset values.
EventListener[]	getListeners(Class listenerType) Suppressed: Returns an array of all the objects currently registered as FooListeners upon this JComponent.
Point	getLocation(Point rv) Suppressed: Stores the x,y origin of this component into "return value" rv and returns rv.
(package private) static Set	getManagingFocusBackwardTraversalKeys() Returns the Set of KeyStrokes to use if the component is managing focus for backward focus traversal.
(package private) static Set	getManagingFocusForwardTraversalKeys() Returns the Set of KeyStrokes to use if the component is managing focus for forward focus traversal.
Dimension	getMaximumSize() Suppressed: If the maximum size has been set to a non-null value just returns it.
Dimension	getMinimumSize() Enabled: If the minimum size has been set to a non-null value just returns it.
Component	getNextFocusableComponent() Deprecated. As of 1.4, replaced by FocusTraversalPolicy.
private int	getObscuredState(int compIndex, int x, int y, int width, int height) Returns whether or not the region of the specified component is obscured by a sibling.
Dimension	getPreferredSize() Enabled: If the preferredSize has been set to a non-null value just returns it.
java.beans.PropertyChangeListener[]	getPropertyChangeListeners() Suppressed: Returns an array of all the PropertyChangeListeners added to this Component with addPropertyChangeListener().
java.beans.PropertyChangeListener[]	getPropertyChangeListeners(String propertyName) Suppressed: Returns an array of all the listeners which have been associated with the named property.
KeyStroke[]	getRegisteredKeyStrokes() Suppressed: Returns the KeyStrokes that will initiate registered actions.
JRootPane	getRootPane() Suppressed: Returns the JRootPane ancestor for this component.
Dimension	getSize(Dimension rv) Enabled: Stores the width/height of this component into "return value" rv and returns rv.
private static boolean	getSuppressDropTarget() Returns true if setTransferHandler should install a DropTarget.
Point	getToolTipLocation(MouseEvent event) Suppressed: Returns the tooltip location in this component's coordinate system.
String	getToolTipText() Enabled: Returns the tooltip string that has been set with setToolTipText.
String	getToolTipText(MouseEvent event) Suppressed: Returns the string to be used as the tooltip for event.
Container	getTopLevelAncestor() Suppressed: Returns the top-level ancestor of this component (either the containing Window or Applet), or null if this component has not been added to any container.
TransferHandler	getTransferHandler() Suppressed: Gets the transferHandler property.
String	getUIClassID() Suppressed: Returns the UIDefaults key used to look up the name of the swing.plaf.ComponentUI class that defines the look and feel for this component.
boolean	getVerifyInputWhenFocusTarget() Suppressed: Returns the value that indicates whether the input verifier for the current focus owner will be called before this component requests focus.
java.beans.VetoableChangeListener[]	getVetoableChangeListeners() Suppressed: Returns an array of all the vetoable change listeners registered on this component.
Rectangle	getVisibleRect() Enabled: Returns the Component's "visible rectangle" - the intersection of this component's visible rectangle:
int	getWidth() Enabled: Returns the current width of this component.
(package private) static byte	getWriteObjCounter(JComponent comp)
int	getX() Enabled: Returns the current x coordinate of the component's origin.
int	getY() Enabled: Returns the current y coordinate of the component's origin.
void	grabFocus() Suppressed: Requests that this Component get the input focus, and that this Component's top-level ancestor become the focused Window.
boolean	isDoubleBuffered() Enabled: Returns whether this component should use a buffer to paint.
static boolean	isLightweightComponent(Component c) Suppressed: Returns true if this component is lightweight, that is, if it doesn't have a native window system peer.
boolean	isManagingFocus() Deprecated. As of 1.4, replaced by Component.setFocusTraversalKeys(int, Set) and Container.setFocusCycleRoot(boolean).
boolean	isMaximumSizeSet() Enabled: Returns true if the maximum size has been set to a non-null value otherwise returns false.
boolean	isMinimumSizeSet() Enabled: Returns true if the minimum size has been set to a non-null value otherwise returns false.
boolean	isOpaque() Enabled: Returns true if this component is completely opaque.
boolean	isOptimizedDrawingEnabled() Enabled: Returns true if this component tiles its children -- that is, if it can guarantee that the children will not overlap.
boolean	isPaintingTile() Suppressed: Returns true if the component is currently painting a tile.
boolean	isPreferredSizeSet() Enabled: Returns true if the preferred size has been set to a non-null value otherwise returns false.
boolean	isRequestFocusEnabled() Enabled: Returns true if this JComponent should get focus; otherwise returns false.
boolean	isValidateRoot() Enabled: If this method returns true, revalidate calls by descendants of this component will cause the entire tree beginning with this root to be validated.
void	paint(Graphics g) Suppressed: Invoked by Swing to draw components.
protected void	paintBorder(Graphics g) Paints the component's border.
protected void	paintChildren(Graphics g) Paints this component's children.
protected void	paintComponent(Graphics g) Calls the UI delegate's paint method, if the UI delegate is non-null.
private boolean	paintDoubleBuffered(JComponent paintingComponent, Component bufferComponent, Graphics g, int clipX, int clipY, int clipW, int clipH)
void	paintImmediately(int x, int y, int w, int h) Suppressed: Paints the specified region in this component and all of its descendants that overlap the region, immediately.
void	paintImmediately(Rectangle r) Suppressed: Paints the specified region now.
private void	paintWithOffscreenBuffer(JComponent paintingComponent, Graphics g, int clipX, int clipY, int clipW, int clipH, Image offscreen)
protected String	paramString() Returns a string representation of this JComponent.
void	print(Graphics g) Suppressed: Invoke this method to print the component.
void	printAll(Graphics g) Suppressed: Invoke this method to print the component.
protected void	printBorder(Graphics g) Prints the component's border.
protected void	printChildren(Graphics g) Prints this component's children.
protected void	printComponent(Graphics g) This is invoked during a printing operation.
protected void	processComponentKeyEvent(KeyEvent e) Processes any key events that the component itself recognizes.
protected boolean	processKeyBinding(KeyStroke ks, KeyEvent e, int condition, boolean pressed) Invoked to process the key bindings for ks as the result of the KeyEvent e.
(package private) boolean	processKeyBindings(KeyEvent e, boolean pressed) This is invoked as the result of a KeyEvent that was not consumed by the FocusManager, KeyListeners, or the component.
(package private) static boolean	processKeyBindingsForAllComponents(KeyEvent e, Container container, boolean pressed)
protected void	processKeyEvent(KeyEvent e) Overrides processKeyEvent to process events.
protected void	processMouseMotionEvent(MouseEvent e) Processes mouse motion events, such as MouseEvent.MOUSE_DRAGGED.
void	putClientProperty(Object key, Object value) Suppressed: Adds an arbitrary key/value "client property" to this component.
private void	readObject(ObjectInputStream s) We use the ObjectInputStream "registerValidation" callback to update the UI for the entire tree of components after they've all been read in.
(package private) boolean	rectangleIsObscured(int x, int y, int width, int height) If the specified rectangle is completely obscured by any of this component's opaque children then returns true.
void	registerKeyboardAction(ActionListener anAction, KeyStroke aKeyStroke, int aCondition) Suppressed: This method is now obsolete, please use a combination of getActionMap() and getInputMap() for similiar behavior.
void	registerKeyboardAction(ActionListener anAction, String aCommand, KeyStroke aKeyStroke, int aCondition) Suppressed: This method is now obsolete, please use a combination of getActionMap() and getInputMap() for similiar behavior.
private void	registerNextFocusableComponent()
private void	registerNextFocusableComponent(Component nextFocusableComponent)
private void	registerWithKeyboardManager(boolean onlyIfNew) Registers any bound WHEN_IN_FOCUSED_WINDOW actions with the KeyboardManager.
private void	registerWithKeyboardManager(KeyStroke aKeyStroke)
void	removeAncestorListener(AncestorListener listener) Suppressed: Unregisters listener so that it will no longer receive AncestorEvents.
void	removeNotify() Suppressed: Notifies this component that it no longer has a parent component.
void	removePropertyChangeListener(java.beans.PropertyChangeListener listener) Suppressed: Removes a PropertyChangeListener from the listener list.
void	removePropertyChangeListener(String propertyName, java.beans.PropertyChangeListener listener) Suppressed: Removes a PropertyChangeListener for a specific property.
void	removeVetoableChangeListener(java.beans.VetoableChangeListener listener) Suppressed: Removes a VetoableChangeListener from the listener list.
void	repaint(long tm, int x, int y, int width, int height) Enabled: Adds the specified region to the dirty region list if the component is showing.
void	repaint(Rectangle r) Enabled: Adds the specified region to the dirty region list if the component is showing.
boolean	requestDefaultFocus() Deprecated. As of 1.4, replaced by FocusTraversalPolicy.getDefaultComponent(Container).requestFocus()
void	requestFocus() Suppressed:
boolean	requestFocus(boolean temporary) Suppressed: JComponent overrides requestFocus solely to make the method public so that UI implementations can cause temporary focus changes.
boolean	requestFocusInWindow() Suppressed:
protected boolean	requestFocusInWindow(boolean temporary) JComponent overrides requestFocusInWindow solely to make the method public so that UI implementations can cause temporary focus changes.
void	resetKeyboardActions() Suppressed: Unregisters all the bindings in the first tier InputMaps and ActionMap.
void	reshape(int x, int y, int w, int h) Enabled: Moves and resizes this component.
void	revalidate() Enabled: Supports deferred automatic layout.
private boolean	runInputVerifier()
void	scrollRectToVisible(Rectangle aRect) Enabled: Forwards the scrollRectToVisible() message to the JComponent's parent.
void	setActionMap(ActionMap am) Suppressed: Sets the ActionMap to am.
void	setAlignmentX(float alignmentX) Enabled: Sets the the vertical alignment.
void	setAlignmentY(float alignmentY) Enabled: Sets the the horizontal alignment.
void	setAutoscrolls(boolean autoscrolls) Suppressed: Sets the autoscrolls property.
void	setBackground(Color bg) Enabled: Sets the background color of this component.
void	setBorder(javax.swing.border.Border border) Enabled: Sets the border of this component.
(package private) void	setCreatedDoubleBuffer(boolean volatileImage, boolean newValue) This is invoked by the RepaintManager if createImage or createVolatileImage is called on the component.
void	setDebugGraphicsOptions(int debugOptions) Suppressed: Enables or disables diagnostic information about every graphics operation performed within the component or one of its children.
static void	setDefaultLocale(Locale l) Suppressed: Sets the default locale used to initialize each JComponent's locale property upon creation.
void	setDoubleBuffered(boolean aFlag) Enabled: Sets whether the this component should use a buffer to paint.
void	setEnabled(boolean enabled) Enabled: Sets whether or not this component is enabled.
private void	setFlag(int aFlag, boolean aValue)
void	setFont(Font font) Enabled: Sets the font for this component.
void	setForeground(Color fg) Enabled: Sets the foreground color of this component.
void	setInputMap(int condition, InputMap map) Suppressed: Sets the InputMap to use under the condition condition to map.
void	setInputVerifier(InputVerifier inputVerifier) Suppressed: Sets the input verifier for this component.
void	setMaximumSize(Dimension maximumSize) Enabled: Sets the maximum size of this component to a constant value.
void	setMinimumSize(Dimension minimumSize) Enabled: Sets the minimum size of this component to a constant value.
void	setNextFocusableComponent(Component aComponent) Deprecated. As of 1.4, replaced by FocusTraversalPolicy
void	setOpaque(boolean isOpaque) Enabled: If true the component paints every pixel within its bounds.
(package private) void	setPaintingChild(Component paintingChild)
void	setPreferredSize(Dimension preferredSize) Enabled: Sets the preferred size of this component.
void	setRequestFocusEnabled(boolean requestFocusEnabled) Enabled: Provides a hint as to whether or not this JComponent should get focus.
void	setToolTipText(String text) Enabled: Registers the text to display in a tool tip.
void	setTransferHandler(TransferHandler newHandler) Suppressed: Sets the transferHandler<