java.awt
Class Button

java.lang.Object sample code for java.lang.Object definition code for java.lang.Object 
  extended by java.awt.Component sample code for java.awt.Component definition code for java.awt.Component 
      extended by java.awt.Button
All Implemented Interfaces:
ImageObserver sample code for java.awt.image.ImageObserver definition code for java.awt.image.ImageObserver , MenuContainer sample code for java.awt.MenuContainer definition code for java.awt.MenuContainer , Serializable sample code for java.io.Serializable definition code for java.io.Serializable , Accessible sample code for javax.accessibility.Accessible definition code for javax.accessibility.Accessible

public class Button
extends Component sample code for java.awt.Component definition code for java.awt.Component
implements Accessible sample code for javax.accessibility.Accessible definition code for javax.accessibility.Accessible

This class creates a labeled button. The application can cause some action to happen when the button is pushed. This image depicts three views of a "Quit" button as it appears under the Solaris operating system:

The following context describes the graphic

The first view shows the button as it appears normally. The second view shows the button when it has input focus. Its outline is darkened to let the user know that it is an active object. The third view shows the button when the user clicks the mouse over the button, and thus requests that an action be performed.

The gesture of clicking on a button with the mouse is associated with one instance of ActionEvent, which is sent out when the mouse is both pressed and released over the button. If an application is interested in knowing when the button has been pressed but not released, as a separate gesture, it can specialize processMouseEvent, or it can register itself as a listener for mouse events by calling addMouseListener. Both of these methods are defined by Component, the abstract superclass of all components.

When a button is pressed and released, AWT sends an instance of ActionEvent to the button, by calling processEvent on the button. The button's processEvent method receives all events for the button; it passes an action event along by calling its own processActionEvent method. The latter method passes the action event on to any action listeners that have registered an interest in action events generated by this button.

If an application wants to perform some action based on a button being pressed and released, it should implement ActionListener and register the new listener to receive events from this button, by calling the button's addActionListener method. The application can make use of the button's action command as a messaging protocol.

Since:
JDK1.0
See Also:
ActionEvent sample code for java.awt.event.ActionEvent definition code for java.awt.event.ActionEvent , ActionListener sample code for java.awt.event.ActionListener definition code for java.awt.event.ActionListener , Component.processMouseEvent(java.awt.event.MouseEvent) sample code for java.awt.Component.processMouseEvent(java.awt.event.MouseEvent) definition code for java.awt.Component.processMouseEvent(java.awt.event.MouseEvent) , Component.addMouseListener(java.awt.event.MouseListener) sample code for java.awt.Component.addMouseListener(java.awt.event.MouseListener) definition code for java.awt.Component.addMouseListener(java.awt.event.MouseListener) , Serialized Form

Nested Class Summary
protected  class Button.AccessibleAWTButton sample code for java.awt.Button.AccessibleAWTButton definition code for java.awt.Button.AccessibleAWTButton
          This class implements accessibility support for the Button class.
 
Nested classes/interfaces inherited from class java.awt.Component sample code for java.awt.Component definition code for java.awt.Component
Component.AccessibleAWTComponent sample code for java.awt.Component.AccessibleAWTComponent definition code for java.awt.Component.AccessibleAWTComponent , Component.BltBufferStrategy sample code for java.awt.Component.BltBufferStrategy definition code for java.awt.Component.BltBufferStrategy , Component.FlipBufferStrategy sample code for java.awt.Component.FlipBufferStrategy definition code for java.awt.Component.FlipBufferStrategy
 
Field Summary
 
Fields inherited from class java.awt.Component sample code for java.awt.Component definition code for java.awt.Component
BOTTOM_ALIGNMENT sample code for java.awt.Component.BOTTOM_ALIGNMENT definition code for java.awt.Component.BOTTOM_ALIGNMENT , CENTER_ALIGNMENT sample code for java.awt.Component.CENTER_ALIGNMENT definition code for java.awt.Component.CENTER_ALIGNMENT , LEFT_ALIGNMENT sample code for java.awt.Component.LEFT_ALIGNMENT definition code for java.awt.Component.LEFT_ALIGNMENT , RIGHT_ALIGNMENT sample code for java.awt.Component.RIGHT_ALIGNMENT definition code for java.awt.Component.RIGHT_ALIGNMENT , TOP_ALIGNMENT sample code for java.awt.Component.TOP_ALIGNMENT definition code for java.awt.Component.TOP_ALIGNMENT
 
Fields inherited from interface java.awt.image.ImageObserver sample code for java.awt.image.ImageObserver definition code for java.awt.image.ImageObserver
ABORT sample code for java.awt.image.ImageObserver.ABORT definition code for java.awt.image.ImageObserver.ABORT , ALLBITS sample code for java.awt.image.ImageObserver.ALLBITS definition code for java.awt.image.ImageObserver.ALLBITS , ERROR sample code for java.awt.image.ImageObserver.ERROR definition code for java.awt.image.ImageObserver.ERROR , FRAMEBITS sample code for java.awt.image.ImageObserver.FRAMEBITS definition code for java.awt.image.ImageObserver.FRAMEBITS , HEIGHT sample code for java.awt.image.ImageObserver.HEIGHT definition code for java.awt.image.ImageObserver.HEIGHT , PROPERTIES sample code for java.awt.image.ImageObserver.PROPERTIES definition code for java.awt.image.ImageObserver.PROPERTIES , SOMEBITS sample code for java.awt.image.ImageObserver.SOMEBITS definition code for java.awt.image.ImageObserver.SOMEBITS , WIDTH sample code for java.awt.image.ImageObserver.WIDTH definition code for java.awt.image.ImageObserver.WIDTH
 
Constructor Summary
Button sample code for java.awt.Button.Button() definition code for java.awt.Button.Button() ()
          Constructs a button with an empty string for its label.
Button sample code for java.awt.Button.Button(java.lang.String) definition code for java.awt.Button.Button(java.lang.String) (String sample code for java.lang.String definition code for java.lang.String  label)
          Constructs a button with the specified label.
 
Method Summary
 void addActionListener sample code for java.awt.Button.addActionListener(java.awt.event.ActionListener) definition code for java.awt.Button.addActionListener(java.awt.event.ActionListener) (ActionListener sample code for java.awt.event.ActionListener definition code for java.awt.event.ActionListener  l)
          Adds the specified action listener to receive action events from this button.
 void addNotify sample code for java.awt.Button.addNotify() definition code for java.awt.Button.addNotify() ()
          Creates the peer of the button.
 AccessibleContext sample code for javax.accessibility.AccessibleContext definition code for javax.accessibility.AccessibleContext getAccessibleContext sample code for java.awt.Button.getAccessibleContext() definition code for java.awt.Button.getAccessibleContext() ()
          Gets the AccessibleContext associated with this Button.
 String sample code for java.lang.String definition code for java.lang.String getActionCommand sample code for java.awt.Button.getActionCommand() definition code for java.awt.Button.getActionCommand() ()
          Returns the command name of the action event fired by this button.
 ActionListener sample code for java.awt.event.ActionListener definition code for java.awt.event.ActionListener [] getActionListeners sample code for java.awt.Button.getActionListeners() definition code for java.awt.Button.getActionListeners() ()
          Returns an array of all the action listeners registered on this button.
 String sample code for java.lang.String definition code for java.lang.String getLabel sample code for java.awt.Button.getLabel() definition code for java.awt.Button.getLabel() ()
          Gets the label of this button.
<T extends EventListener sample code for java.util.EventListener definition code for java.util.EventListener >
T[]
getListeners sample code for java.awt.Button.getListeners(java.lang.Class) definition code for java.awt.Button.getListeners(java.lang.Class) (Class sample code for java.lang.Class definition code for java.lang.Class <T> listenerType)
          Returns an array of all the objects currently registered as FooListeners upon this Button.
protected  String sample code for java.lang.String definition code for java.lang.String paramString sample code for java.awt.Button.paramString() definition code for java.awt.Button.paramString() ()
          Returns a string representing the state of this Button.
protected  void processActionEvent sample code for java.awt.Button.processActionEvent(java.awt.event.ActionEvent) definition code for java.awt.Button.processActionEvent(java.awt.event.ActionEvent) (ActionEvent sample code for java.awt.event.ActionEvent definition code for java.awt.event.ActionEvent  e)
          Processes action events occurring on this button by dispatching them to any registered ActionListener objects.
protected  void processEvent sample code for java.awt.Button.processEvent(java.awt.AWTEvent) definition code for java.awt.Button.processEvent(java.awt.AWTEvent) (AWTEvent sample code for java.awt.AWTEvent definition code for java.awt.AWTEvent  e)
          Processes events on this button.
 void removeActionListener sample code for java.awt.Button.removeActionListener(java.awt.event.ActionListener) definition code for java.awt.Button.removeActionListener(java.awt.event.ActionListener) (ActionListener sample code for java.awt.event.ActionListener definition code for java.awt.event.ActionListener  l)
          Removes the specified action listener so that it no longer receives action events from this button.
 void setActionCommand sample code for java.awt.Button.setActionCommand(java.lang.String) definition code for java.awt.Button.setActionCommand(java.lang.String) (String sample code for java.lang.String definition code for java.lang.String  command)
          Sets the command name for the action event fired by this button.
 void setLabel sample code for java.awt.Button.setLabel(java.lang.String) definition code for java.awt.Button.setLabel(java.lang.String) (String sample code for java.lang.String definition code for java.lang.String  label)
          Sets the button's label to be the specified string.
 
Methods inherited from class java.awt.Component sample code for java.awt.Component definition code for java.awt.Component
action sample code for java.awt.Component.action(java.awt.Event, java.lang.Object) definition code for java.awt.Component.action(java.awt.Event, java.lang.Object) , add sample code for java.awt.Component.add(java.awt.PopupMenu) definition code for java.awt.Component.add(java.awt.PopupMenu) , addComponentListener sample code for java.awt.Component.addComponentListener(java.awt.event.ComponentListener) definition code for java.awt.Component.addComponentListener(java.awt.event.ComponentListener) , addFocusListener sample code for java.awt.Component.addFocusListener(java.awt.event.FocusListener) definition code for java.awt.Component.addFocusListener(java.awt.event.FocusListener) , addHierarchyBoundsListener sample code for java.awt.Component.addHierarchyBoundsListener(java.awt.event.HierarchyBoundsListener) definition code for java.awt.Component.addHierarchyBoundsListener(java.awt.event.HierarchyBoundsListener) , addHierarchyListener sample code for java.awt.Component.addHierarchyListener(java.awt.event.HierarchyListener) definition code for java.awt.Component.addHierarchyListener(java.awt.event.HierarchyListener) , addInputMethodListener sample code for java.awt.Component.addInputMethodListener(java.awt.event.InputMethodListener) definition code for java.awt.Component.addInputMethodListener(java.awt.event.InputMethodListener) , addKeyListener sample code for java.awt.Component.addKeyListener(java.awt.event.KeyListener) definition code for java.awt.Component.addKeyListener(java.awt.event.KeyListener) , addMouseListener sample code for java.awt.Component.addMouseListener(java.awt.event.MouseListener) definition code for java.awt.Component.addMouseListener(java.awt.event.MouseListener) , addMouseMotionListener sample code for java.awt.Component.addMouseMotionListener(java.awt.event.MouseMotionListener) definition code for java.awt.Component.addMouseMotionListener(java.awt.event.MouseMotionListener) , addMouseWheelListener sample code for java.awt.Component.addMouseWheelListener(java.awt.event.MouseWheelListener) definition code for java.awt.Component.addMouseWheelListener(java.awt.event.MouseWheelListener) , addPropertyChangeListener sample code for java.awt.Component.addPropertyChangeListener(java.beans.PropertyChangeListener) definition code for java.awt.Component.addPropertyChangeListener(java.beans.PropertyChangeListener) , addPropertyChangeListener sample code for java.awt.Component.addPropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener) definition code for java.awt.Component.addPropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener) , applyComponentOrientation sample code for java.awt.Component.applyComponentOrientation(java.awt.ComponentOrientation) definition code for java.awt.Component.applyComponentOrientation(java.awt.ComponentOrientation) , areFocusTraversalKeysSet sample code for java.awt.Component.areFocusTraversalKeysSet(int) definition code for java.awt.Component.areFocusTraversalKeysSet(int) , bounds sample code for java.awt.Component.bounds() definition code for java.awt.Component.bounds() , checkImage sample code for java.awt.Component.checkImage(java.awt.Image, java.awt.image.ImageObserver) definition code for java.awt.Component.checkImage(java.awt.Image, java.awt.image.ImageObserver) , checkImage sample code for java.awt.Component.checkImage(java.awt.Image, int, int, java.awt.image.ImageObserver) definition code for java.awt.Component.checkImage(java.awt.Image, int, int, java.awt.image.ImageObserver) , coalesceEvents sample code for java.awt.Component.coalesceEvents(java.awt.AWTEvent, java.awt.AWTEvent) definition code for java.awt.Component.coalesceEvents(java.awt.AWTEvent, java.awt.AWTEvent) , contains sample code for java.awt.Component.contains(int, int) definition code for java.awt.Component.contains(int, int) , contains sample code for java.awt.Component.contains(java.awt.Point) definition code for java.awt.Component.contains(java.awt.Point) , createImage sample code for java.awt.Component.createImage(java.awt.image.ImageProducer) definition code for java.awt.Component.createImage(java.awt.image.ImageProducer) , createImage sample code for java.awt.Component.createImage(int, int) definition code for java.awt.Component.createImage(int, int) , createVolatileImage sample code for java.awt.Component.createVolatileImage(int, int) definition code for java.awt.Component.createVolatileImage(int, int) , createVolatileImage sample code for java.awt.Component.createVolatileImage(int, int, java.awt.ImageCapabilities) definition code for java.awt.Component.createVolatileImage(int, int, java.awt.ImageCapabilities) , deliverEvent sample code for java.awt.Component.deliverEvent(java.awt.Event) definition code for java.awt.Component.deliverEvent(java.awt.Event) , disable sample code for java.awt.Component.disable() definition code for java.awt.Component.disable() , disableEvents sample code for java.awt.Component.disableEvents(long) definition code for java.awt.Component.disableEvents(long) , dispatchEvent sample code for java.awt.Component.dispatchEvent(java.awt.AWTEvent) definition code for java.awt.Component.dispatchEvent(java.awt.AWTEvent) , doLayout sample code for java.awt.Component.doLayout() definition code for java.awt.Component.doLayout() , enable sample code for java.awt.Component.enable() definition code for java.awt.Component.enable() , enable sample code for java.awt.Component.enable(boolean) definition code for java.awt.Component.enable(boolean) , enableEvents sample code for java.awt.Component.enableEvents(long) definition code for java.awt.Component.enableEvents(long) , enableInputMethods sample code for java.awt.Component.enableInputMethods(boolean) definition code for java.awt.Component.enableInputMethods(boolean) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, boolean, boolean) definition code for java.awt.Component.firePropertyChange(java.lang.String, boolean, boolean) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, byte, byte) definition code for java.awt.Component.firePropertyChange(java.lang.String, byte, byte) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, char, char) definition code for java.awt.Component.firePropertyChange(java.lang.String, char, char) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, double, double) definition code for java.awt.Component.firePropertyChange(java.lang.String, double, double) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, float, float) definition code for java.awt.Component.firePropertyChange(java.lang.String, float, float) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, int, int) definition code for java.awt.Component.firePropertyChange(java.lang.String, int, int) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, long, long) definition code for java.awt.Component.firePropertyChange(java.lang.String, long, long) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, java.lang.Object, java.lang.Object) definition code for java.awt.Component.firePropertyChange(java.lang.String, java.lang.Object, java.lang.Object) , firePropertyChange sample code for java.awt.Component.firePropertyChange(java.lang.String, short, short) definition code for java.awt.Component.firePropertyChange(java.lang.String, short, short) , getAlignmentX sample code for java.awt.Component.getAlignmentX() definition code for java.awt.Component.getAlignmentX() , getAlignmentY sample code for java.awt.Component.getAlignmentY() definition code for java.awt.Component.getAlignmentY() , getBackground sample code for java.awt.Component.getBackground() definition code for java.awt.Component.getBackground() , getBounds sample code for java.awt.Component.getBounds() definition code for java.awt.Component.getBounds() , getBounds sample code for java.awt.Component.getBounds(java.awt.Rectangle) definition code for java.awt.Component.getBounds(java.awt.Rectangle) , getColorModel sample code for java.awt.Component.getColorModel() definition code for java.awt.Component.getColorModel() , getComponentAt sample code for java.awt.Component.getComponentAt(int, int) definition code for java.awt.Component.getComponentAt(int, int) , getComponentAt sample code for java.awt.Component.getComponentAt(java.awt.Point) definition code for java.awt.Component.getComponentAt(java.awt.Point) , getComponentListeners sample code for java.awt.Component.getComponentListeners() definition code for java.awt.Component.getComponentListeners() , getComponentOrientation sample code for java.awt.Component.getComponentOrientation() definition code for java.awt.Component.getComponentOrientation() , getCursor sample code for java.awt.Component.getCursor() definition code for java.awt.Component.getCursor() , getDropTarget sample code for java.awt.Component.getDropTarget() definition code for java.awt.Component.getDropTarget() , getFocusCycleRootAncestor sample code for java.awt.Component.getFocusCycleRootAncestor() definition code for java.awt.Component.getFocusCycleRootAncestor() , getFocusListeners sample code for java.awt.Component.getFocusListeners() definition code for java.awt.Component.getFocusListeners() , getFocusTraversalKeys sample code for java.awt.Component.getFocusTraversalKeys(int) definition code for java.awt.Component.getFocusTraversalKeys(int) , getFocusTraversalKeysEnabled sample code for java.awt.Component.getFocusTraversalKeysEnabled() definition code for java.awt.Component.getFocusTraversalKeysEnabled() , getFont sample code for java.awt.Component.getFont() definition code for java.awt.Component.getFont() , getFontMetrics sample code for java.awt.Component.getFontMetrics(java.awt.Font) definition code for java.awt.Component.getFontMetrics(java.awt.Font) , getForeground sample code for java.awt.Component.getForeground() definition code for java.awt.Component.getForeground() , getGraphics sample code for java.awt.Component.getGraphics() definition code for java.awt.Component.getGraphics() , getGraphicsConfiguration sample code for java.awt.Component.getGraphicsConfiguration() definition code for java.awt.Component.getGraphicsConfiguration() , getHeight sample code for java.awt.Component.getHeight() definition code for java.awt.Component.getHeight() , getHierarchyBoundsListeners sample code for java.awt.Component.getHierarchyBoundsListeners() definition code for java.awt.Component.getHierarchyBoundsListeners() , getHierarchyListeners sample code for java.awt.Component.getHierarchyListeners() definition code for java.awt.Component.getHierarchyListeners() , getIgnoreRepaint sample code for java.awt.Component.getIgnoreRepaint() definition code for java.awt.Component.getIgnoreRepaint() , getInputContext sample code for java.awt.Component.getInputContext() definition code for java.awt.Component.getInputContext() , getInputMethodListeners sample code for java.awt.Component.getInputMethodListeners() definition code for java.awt.Component.getInputMethodListeners() , getInputMethodRequests sample code for java.awt.Component.getInputMethodRequests() definition code for java.awt.Component.getInputMethodRequests() , getKeyListeners sample code for java.awt.Component.getKeyListeners() definition code for java.awt.Component.getKeyListeners() , getLocale sample code for java.awt.Component.getLocale() definition code for java.awt.Component.getLocale() , getLocation sample code for java.awt.Component.getLocation() definition code for java.awt.Component.getLocation() , getLocation sample code for java.awt.Component.getLocation(java.awt.Point) definition code for java.awt.Component.getLocation(java.awt.Point) , getLocationOnScreen sample code for java.awt.Component.getLocationOnScreen() definition code for java.awt.Component.getLocationOnScreen() , getMaximumSize sample code for java.awt.Component.getMaximumSize() definition code for java.awt.Component.getMaximumSize() , getMinimumSize sample code for java.awt.Component.getMinimumSize() definition code for java.awt.Component.getMinimumSize() , getMouseListeners sample code for java.awt.Component.getMouseListeners() definition code for java.awt.Component.getMouseListeners() , getMouseMotionListeners sample code for java.awt.Component.getMouseMotionListeners() definition code for java.awt.Component.getMouseMotionListeners() , getMousePosition sample code for java.awt.Component.getMousePosition() definition code for java.awt.Component.getMousePosition() , getMouseWheelListeners sample code for java.awt.Component.getMouseWheelListeners() definition code for java.awt.Component.getMouseWheelListeners() , getName sample code for java.awt.Component.getName() definition code for java.awt.Component.getName() , getParent sample code for java.awt.Component.getParent() definition code for java.awt.Component.getParent() , getPeer sample code for java.awt.Component.getPeer() definition code for java.awt.Component.getPeer() , getPreferredSize sample code for java.awt.Component.getPreferredSize() definition code for java.awt.Component.getPreferredSize() , getPropertyChangeListeners sample code for java.awt.Component.getPropertyChangeListeners() definition code for java.awt.Component.getPropertyChangeListeners() , getPropertyChangeListeners sample code for java.awt.Component.getPropertyChangeListeners(java.lang.String) definition code for java.awt.Component.getPropertyChangeListeners(java.lang.String) , getSize sample code for java.awt.Component.getSize() definition code for java.awt.Component.getSize() , getSize sample code for java.awt.Component.getSize(java.awt.Dimension) definition code for java.awt.Component.getSize(java.awt.Dimension) , getToolkit sample code for java.awt.Component.getToolkit() definition code for java.awt.Component.getToolkit() , getTreeLock sample code for java.awt.Component.getTreeLock() definition code for java.awt.Component.getTreeLock() , getWidth sample code for java.awt.Component.getWidth() definition code for java.awt.Component.getWidth() , getX sample code for java.awt.Component.getX() definition code for java.awt.Component.getX() , getY sample code for java.awt.Component.getY() definition code for java.awt.Component.getY() , gotFocus sample code for java.awt.Component.gotFocus(java.awt.Event, java.lang.Object) definition code for java.awt.Component.gotFocus(java.awt.Event, java.lang.Object) , handleEvent sample code for java.awt.Component.handleEvent(java.awt.Event) definition code for java.awt.Component.handleEvent(java.awt.Event) , hasFocus sample code for java.awt.Component.hasFocus() definition code for java.awt.Component.hasFocus() , hide sample code for java.awt.Component.hide() definition code for java.awt.Component.hide() , imageUpdate sample code for java.awt.Component.imageUpdate(java.awt.Image, int, int, int, int, int) definition code for java.awt.Component.imageUpdate(java.awt.Image, int, int, int, int, int) , inside sample code for java.awt.Component.inside(int, int) definition code for java.awt.Component.inside(int, int) , invalidate sample code for java.awt.Component.invalidate() definition code for java.awt.Component.invalidate() , isBackgroundSet sample code for java.awt.Component.isBackgroundSet() definition code for java.awt.Component.isBackgroundSet() , isCursorSet sample code for java.awt.Component.isCursorSet() definition code for java.awt.Component.isCursorSet() , isDisplayable sample code for java.awt.Component.isDisplayable() definition code for java.awt.Component.isDisplayable() , isDoubleBuffered sample code for java.awt.Component.isDoubleBuffered() definition code for java.awt.Component.isDoubleBuffered() , isEnabled sample code for java.awt.Component.isEnabled() definition code for java.awt.Component.isEnabled() , isFocusable sample code for java.awt.Component.isFocusable() definition code for java.awt.Component.isFocusable() , isFocusCycleRoot sample code for java.awt.Component.isFocusCycleRoot(java.awt.Container) definition code for java.awt.Component.isFocusCycleRoot(java.awt.Container) , isFocusOwner sample code for java.awt.Component.isFocusOwner() definition code for java.awt.Component.isFocusOwner() , isFocusTraversable sample code for java.awt.Component.isFocusTraversable() definition code for java.awt.Component.isFocusTraversable() , isFontSet sample code for java.awt.Component.isFontSet() definition code for java.awt.Component.isFontSet() , isForegroundSet sample code for java.awt.Component.isForegroundSet() definition code for java.awt.Component.isForegroundSet() , isLightweight sample code for java.awt.Component.isLightweight() definition code for java.awt.Component.isLightweight() , isMaximumSizeSet sample code for java.awt.Component.isMaximumSizeSet() definition code for java.awt.Component.isMaximumSizeSet() , isMinimumSizeSet sample code for java.awt.Component.isMinimumSizeSet() definition code for java.awt.Component.isMinimumSizeSet() , isOpaque sample code for java.awt.Component.isOpaque() definition code for java.awt.Component.isOpaque() , isPreferredSizeSet sample code for java.awt.Component.isPreferredSizeSet() definition code for java.awt.Component.isPreferredSizeSet() , isShowing sample code for java.awt.Component.isShowing() definition code for java.awt.Component.isShowing() , isValid sample code for java.awt.Component.isValid() definition code for java.awt.Component.isValid() , isVisible sample code for java.awt.Component.isVisible() definition code for java.awt.Component.isVisible() , keyDown sample code for java.awt.Component.keyDown(java.awt.Event, int) definition code for java.awt.Component.keyDown(java.awt.Event, int) , keyUp sample code for java.awt.Component.keyUp(java.awt.Event, int) definition code for java.awt.Component.keyUp(java.awt.Event, int) , layout sample code for java.awt.Component.layout() definition code for java.awt.Component.layout() , list sample code for java.awt.Component.list() definition code for java.awt.Component.list() , list sample code for java.awt.Component.list(java.io.PrintStream) definition code for java.awt.Component.list(java.io.PrintStream) , list sample code for java.awt.Component.list(java.io.PrintStream, int) definition code for java.awt.Component.list(java.io.PrintStream, int) , list sample code for java.awt.Component.list(java.io.PrintWriter) definition code for java.awt.Component.list(java.io.PrintWriter) , list sample code for java.awt.Component.list(java.io.PrintWriter, int) definition code for java.awt.Component.list(java.io.PrintWriter, int) , locate sample code for java.awt.Component.locate(int, int) definition code for java.awt.Component.locate(int, int) , location sample code for java.awt.Component.location() definition code for java.awt.Component.location() , lostFocus sample code for java.awt.Component.lostFocus(java.awt.Event, java.lang.Object) definition code for java.awt.Component.lostFocus(java.awt.Event, java.lang.Object) , minimumSize sample code for java.awt.Component.minimumSize() definition code for java.awt.Component.minimumSize() , mouseDown sample code for java.awt.Component.mouseDown(java.awt.Event, int, int) definition code for java.awt.Component.mouseDown(java.awt.Event, int, int) , mouseDrag sample code for java.awt.Component.mouseDrag(java.awt.Event, int, int) definition code for java.awt.Component.mouseDrag(java.awt.Event, int, int) , mouseEnter sample code for java.awt.Component.mouseEnter(java.awt.Event, int, int) definition code for java.awt.Component.mouseEnter(java.awt.Event, int, int) , mouseExit sample code for java.awt.Component.mouseExit(java.awt.Event, int, int) definition code for java.awt.Component.mouseExit(java.awt.Event, int, int) , mouseMove sample code for java.awt.Component.mouseMove(java.awt.Event, int, int) definition code for java.awt.Component.mouseMove(java.awt.Event, int, int) , mouseUp sample code for java.awt.Component.mouseUp(java.awt.Event, int, int) definition code for java.awt.Component.mouseUp(java.awt.Event, int, int) , move sample code for java.awt.Component.move(int, int) definition code for java.awt.Component.move(int, int) , nextFocus sample code for java.awt.Component.nextFocus() definition code for java.awt.Component.nextFocus() , paint sample code for java.awt.Component.paint(java.awt.Graphics) definition code for java.awt.Component.paint(java.awt.Graphics) , paintAll sample code for java.awt.Component.paintAll(java.awt.Graphics) definition code for java.awt.Component.paintAll(java.awt.Graphics) , postEvent sample code for java.awt.Component.postEvent(java.awt.Event) definition code for java.awt.Component.postEvent(java.awt.Event) , preferredSize sample code for java.awt.Component.preferredSize() definition code for java.awt.Component.preferredSize() , prepareImage sample code for java.awt.Component.prepareImage(java.awt.Image, java.awt.image.ImageObserver) definition code for java.awt.Component.prepareImage(java.awt.Image, java.awt.image.ImageObserver) , prepareImage sample code for java.awt.Component.prepareImage(java.awt.Image, int, int, java.awt.image.ImageObserver) definition code for java.awt.Component.prepareImage(java.awt.Image, int, int, java.awt.image.ImageObserver) , print sample code for java.awt.Component.print(java.awt.Graphics) definition code for java.awt.Component.print(java.awt.Graphics) , printAll sample code for java.awt.Component.printAll(java.awt.Graphics) definition code for java.awt.Component.printAll(java.awt.Graphics) , processComponentEvent sample code for java.awt.Component.processComponentEvent(java.awt.event.ComponentEvent) definition code for java.awt.Component.processComponentEvent(java.awt.event.ComponentEvent) , processFocusEvent sample code for java.awt.Component.processFocusEvent(java.awt.event.FocusEvent) definition code for java.awt.Component.processFocusEvent(java.awt.event.FocusEvent) , processHierarchyBoundsEvent sample code for java.awt.Component.processHierarchyBoundsEvent(java.awt.event.HierarchyEvent) definition code for java.awt.Component.processHierarchyBoundsEvent(java.awt.event.HierarchyEvent) , processHierarchyEvent sample code for java.awt.Component.processHierarchyEvent(java.awt.event.HierarchyEvent) definition code for java.awt.Component.processHierarchyEvent(java.awt.event.HierarchyEvent) , processInputMethodEvent sample code for java.awt.Component.processInputMethodEvent(java.awt.event.InputMethodEvent) definition code for java.awt.Component.processInputMethodEvent(java.awt.event.InputMethodEvent) , processKeyEvent sample code for java.awt.Component.processKeyEvent(java.awt.event.KeyEvent) definition code for java.awt.Component.processKeyEvent(java.awt.event.KeyEvent) , processMouseEvent sample code for java.awt.Component.processMouseEvent(java.awt.event.MouseEvent) definition code for java.awt.Component.processMouseEvent(java.awt.event.MouseEvent) , processMouseMotionEvent sample code for java.awt.Component.processMouseMotionEvent(java.awt.event.MouseEvent) definition code for java.awt.Component.processMouseMotionEvent(java.awt.event.MouseEvent) , processMouseWheelEvent sample code for java.awt.Component.processMouseWheelEvent(java.awt.event.MouseWheelEvent) definition code for java.awt.Component.processMouseWheelEvent(java.awt.event.MouseWheelEvent) , remove sample code for java.awt.Component.remove(java.awt.MenuComponent) definition code for java.awt.Component.remove(java.awt.MenuComponent) , removeComponentListener sample code for java.awt.Component.removeComponentListener(java.awt.event.ComponentListener) definition code for java.awt.Component.removeComponentListener(java.awt.event.ComponentListener) , removeFocusListener sample code for java.awt.Component.removeFocusListener(java.awt.event.FocusListener) definition code for java.awt.Component.removeFocusListener(java.awt.event.FocusListener) , removeHierarchyBoundsListener sample code for java.awt.Component.removeHierarchyBoundsListener(java.awt.event.HierarchyBoundsListener) definition code for java.awt.Component.removeHierarchyBoundsListener(java.awt.event.HierarchyBoundsListener) , removeHierarchyListener sample code for java.awt.Component.removeHierarchyListener(java.awt.event.HierarchyListener) definition code for java.awt.Component.removeHierarchyListener(java.awt.event.HierarchyListener) , removeInputMethodListener sample code for java.awt.Component.removeInputMethodListener(java.awt.event.InputMethodListener) definition code for java.awt.Component.removeInputMethodListener(java.awt.event.InputMethodListener) , removeKeyListener sample code for java.awt.Component.removeKeyListener(java.awt.event.KeyListener) definition code for java.awt.Component.removeKeyListener(java.awt.event.KeyListener) , removeMouseListener sample code for java.awt.Component.removeMouseListener(java.awt.event.MouseListener) definition code for java.awt.Component.removeMouseListener(java.awt.event.MouseListener) , removeMouseMotionListener sample code for java.awt.Component.removeMouseMotionListener(java.awt.event.MouseMotionListener) definition code for java.awt.Component.removeMouseMotionListener(java.awt.event.MouseMotionListener) , removeMouseWheelListener sample code for java.awt.Component.removeMouseWheelListener(java.awt.event.MouseWheelListener) definition code for java.awt.Component.removeMouseWheelListener(java.awt.event.MouseWheelListener) , removeNotify sample code for java.awt.Component.removeNotify() definition code for java.awt.Component.removeNotify() , removePropertyChangeListener sample code for java.awt.Component.removePropertyChangeListener(java.beans.PropertyChangeListener) definition code for java.awt.Component.removePropertyChangeListener(java.beans.PropertyChangeListener) , removePropertyChangeListener sample code for java.awt.Component.removePropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener) definition code for java.awt.Component.removePropertyChangeListener(java.lang.String, java.beans.PropertyChangeListener) , repaint sample code for java.awt.Component.repaint() definition code for java.awt.Component.repaint() , repaint sample code for java.awt.Component.repaint(int, int, int, int) definition code for java.awt.Component.repaint(int, int, int, int) , repaint sample code for java.awt.Component.repaint(long) definition code for java.awt.Component.repaint(long) , repaint sample code for java.awt.Component.repaint(long, int, int, int, int) definition code for java.awt.Component.repaint(long, int, int, int, int) , requestFocus sample code for java.awt.Component.requestFocus() definition code for java.awt.Component.requestFocus() , requestFocus sample code for java.awt.Component.requestFocus(boolean) definition code for java.awt.Component.requestFocus(boolean) , requestFocusInWindow sample code for java.awt.Component.requestFocusInWindow() definition code for java.awt.Component.requestFocusInWindow() , requestFocusInWindow sample code for java.awt.Component.requestFocusInWindow(boolean) definition code for java.awt.Component.requestFocusInWindow(boolean) , reshape sample code for java.awt.Component.reshape(int, int, int, int) definition code for java.awt.Component.reshape(int, int, int, int) , resize sample code for java.awt.Component.resize(java.awt.Dimension) definition code for java.awt.Component.resize(java.awt.Dimension) , resize sample code for java.awt.Component.resize(int, int) definition code for java.awt.Component.resize(int, int) , setBackground sample code for java.awt.Component.setBackground(java.awt.Color) definition code for java.awt.Component.setBackground(java.awt.Color) , setBounds sample code for java.awt.Component.setBounds(int, int, int, int) definition code for java.awt.Component.setBounds(int, int, int, int) , setBounds sample code for java.awt.Component.setBounds(java.awt.Rectangle) definition code for java.awt.Component.setBounds(java.awt.Rectangle) , setComponentOrientation sample code for java.awt.Component.setComponentOrientation(java.awt.ComponentOrientation) definition code for java.awt.Component.setComponentOrientation(java.awt.ComponentOrientation) , setCursor sample code for java.awt.Component.setCursor(java.awt.Cursor) definition code for java.awt.Component.setCursor(java.awt.Cursor) , setDropTarget sample code for java.awt.Component.setDropTarget(java.awt.dnd.DropTarget) definition code for java.awt.Component.setDropTarget(java.awt.dnd.DropTarget) , setEnabled sample code for java.awt.Component.setEnabled(boolean) definition code for java.awt.Component.setEnabled(boolean) , setFocusable sample code for java.awt.Component.setFocusable(boolean) definition code for java.awt.Component.setFocusable(boolean) , setFocusTraversalKeys sample code for java.awt.Component.setFocusTraversalKeys(int, java.util.Set) definition code for java.awt.Component.setFocusTraversalKeys(int, java.util.Set) , setFocusTraversalKeysEnabled sample code for java.awt.Component.setFocusTraversalKeysEnabled(boolean) definition code for java.awt.Component.setFocusTraversalKeysEnabled(boolean) , setFont sample code for java.awt.Component.setFont(java.awt.Font) definition code for java.awt.Component.setFont(java.awt.Font) , setForeground sample code for java.awt.Component.setForeground(java.awt.Color) definition code for java.awt.Component.setForeground(java.awt.Color) , setIgnoreRepaint sample code for java.awt.Component.setIgnoreRepaint(boolean) definition code for java.awt.Component.setIgnoreRepaint(boolean) , setLocale sample code for java.awt.Component.setLocale(java.util.Locale) definition code for java.awt.Component.setLocale(java.util.Locale) , setLocation sample code for java.awt.Component.setLocation(int, int) definition code for java.awt.Component.setLocation(int, int) , setLocation sample code for java.awt.Component.setLocation(java.awt.Point) definition code for java.awt.Component.setLocation(java.awt.Point) , setMaximumSize sample code for java.awt.Component.setMaximumSize(java.awt.Dimension) definition code for java.awt.Component.setMaximumSize(java.awt.Dimension) , setMinimumSize sample code for java.awt.Component.setMinimumSize(java.awt.Dimension) definition code for java.awt.Component.setMinimumSize(java.awt.Dimension) , setName sample code for java.awt.Component.setName(java.lang.String) definition code for java.awt.Component.setName(java.lang.String) , setPreferredSize sample code for java.awt.Component.setPreferredSize(java.awt.Dimension) definition code for java.awt.Component.setPreferredSize(java.awt.Dimension) , setSize sample code for java.awt.Component.setSize(java.awt.Dimension) definition code for java.awt.Component.setSize(java.awt.Dimension) , setSize sample code for java.awt.Component.setSize(int, int) definition code for java.awt.Component.setSize(int, int) , setVisible sample code for java.awt.Component.setVisible(boolean) definition code for java.awt.Component.setVisible(boolean) , show sample code for java.awt.Component.show() definition code for java.awt.Component.show() , show sample code for java.awt.Component.show(boolean) definition code for java.awt.Component.show(boolean) , size sample code for java.awt.Component.size() definition code for java.awt.Component.size() , toString sample code for java.awt.Component.toString() definition code for java.awt.Component.toString() , transferFocus sample code for java.awt.Component.transferFocus() definition code for java.awt.Component.transferFocus() , transferFocusBackward sample code for java.awt.Component.transferFocusBackward() definition code for java.awt.Component.transferFocusBackward() , transferFocusUpCycle sample code for java.awt.Component.transferFocusUpCycle() definition code for java.awt.Component.transferFocusUpCycle() , update sample code for java.awt.Component.update(java.awt.Graphics) definition code for java.awt.Component.update(java.awt.Graphics) , validate sample code for java.awt.Component.validate() definition code for java.awt.Component.validate()
 
Methods inherited from class java.lang.Object sample code for java.lang.Object definition code for java.lang.Object
clone sample code for java.lang.Object.clone() definition code for java.lang.Object.clone() , equals sample code for java.lang.Object.equals(java.lang.Object) definition code for java.lang.Object.equals(java.lang.Object) , finalize sample code for java.lang.Object.finalize() definition code for java.lang.Object.finalize() , getClass sample code for java.lang.Object.getClass() definition code for java.lang.Object.getClass() , hashCode sample code for java.lang.Object.hashCode() definition code for java.lang.Object.hashCode() , notify sample code for java.lang.Object.notify() definition code for java.lang.Object.notify() , notifyAll sample code for java.lang.Object.notifyAll() definition code for java.lang.Object.notifyAll() , wait sample code for java.lang.Object.wait() definition code for java.lang.Object.wait() , wait sample code for java.lang.Object.wait(long) definition code for java.lang.Object.wait(long) , wait sample code for java.lang.Object.wait(long, int) definition code for java.lang.Object.wait(long, int)
 

Constructor Detail

Button sample code for java.awt.Button() definition code for java.awt.Button()

public Button()
       throws HeadlessException sample code for java.awt.HeadlessException definition code for java.awt.HeadlessException 
Constructs a button with an empty string for its label.

Throws:
HeadlessException sample code for java.awt.HeadlessException definition code for java.awt.HeadlessException - if GraphicsEnvironment.isHeadless() returns true
See Also:
GraphicsEnvironment.isHeadless() sample code for java.awt.GraphicsEnvironment.isHeadless() definition code for java.awt.GraphicsEnvironment.isHeadless()

Button sample code for java.awt.Button(java.lang.String) definition code for java.awt.Button(java.lang.String)

public Button(String sample code for java.lang.String definition code for java.lang.String  label)
       throws HeadlessException sample code for java.awt.HeadlessException definition code for java.awt.HeadlessException 
Constructs a button with the specified label.

Parameters:
label - a string label for the button, or null for no label
Throws:
HeadlessException sample code for java.awt.HeadlessException definition code for java.awt.HeadlessException - if GraphicsEnvironment.isHeadless() returns true
See Also:
GraphicsEnvironment.isHeadless() sample code for java.awt.GraphicsEnvironment.isHeadless() definition code for java.awt.GraphicsEnvironment.isHeadless()
Method Detail

addNotify sample code for java.awt.Button.addNotify() definition code for java.awt.Button.addNotify()

public void addNotify()
Creates the peer of the button. The button's peer allows the application to change the look of the button without changing its functionality.

Overrides:
addNotify sample code for java.awt.Component.addNotify() definition code for java.awt.Component.addNotify() in class Component sample code for java.awt.Component definition code for java.awt.Component
See Also:
Toolkit.createButton(java.awt.Button) sample code for java.awt.Toolkit.createButton(java.awt.Button) definition code for java.awt.Toolkit.createButton(java.awt.Button) , Component.getToolkit() sample code for java.awt.Component.getToolkit() definition code for java.awt.Component.getToolkit()

getLabel sample code for java.awt.Button.getLabel() definition code for java.awt.Button.getLabel()

public String sample code for java.lang.String definition code for java.lang.String  getLabel()
Gets the label of this button.

Returns:
the button's label, or null if the button has no label.
See Also:
setLabel(java.lang.String) sample code for java.awt.Button.setLabel(java.lang.String) definition code for java.awt.Button.setLabel(java.lang.String)

setLabel sample code for java.awt.Button.setLabel(java.lang.String) definition code for java.awt.Button.setLabel(java.lang.String)

public void setLabel(String sample code for java.lang.String definition code for java.lang.String  label)
Sets the button's label to be the specified string.

Parameters:
label - the new label, or null if the button has no label.
See Also:
getLabel() sample code for java.awt.Button.getLabel() definition code for java.awt.Button.getLabel()

setActionCommand sample code for java.awt.Button.setActionCommand(java.lang.String) definition code for java.awt.Button.setActionCommand(java.lang.String)

public void setActionCommand(String sample code for java.lang.String definition code for java.lang.String  command)
Sets the command name for the action event fired by this button. By default this action command is set to match the label of the button.

Parameters:
command - a string used to set the button's action command. If the string is null then the action command is set to match the label of the button.
Since:
JDK1.1
See Also:
ActionEvent sample code for java.awt.event.ActionEvent definition code for java.awt.event.ActionEvent

getActionCommand sample code for java.awt.Button.getActionCommand() definition code for java.awt.Button.getActionCommand()

public String sample code for java.lang.String definition code for java.lang.String  getActionCommand()
Returns the command name of the action event fired by this button. If the command name is null (default) then this method returns the label of the button.


addActionListener sample code for java.awt.Button.addActionListener(java.awt.event.ActionListener) definition code for java.awt.Button.addActionListener(java.awt.event.ActionListener)

public void addActionListener(ActionListener sample code for java.awt.event.ActionListener definition code for java.awt.event.ActionListener  l)
Adds the specified action listener to receive action events from this button. Action events occur when a user presses or releases the mouse over this button. If l is null, no exception is thrown and no action is performed.

Parameters:
l - the action listener
Since:
JDK1.1
See Also:
removeActionListener(java.awt.event.ActionListener) sample code for java.awt.Button.removeActionListener(java.awt.event.ActionListener) definition code for java.awt.Button.removeActionListener(java.awt.event.ActionListener) , getActionListeners() sample code for java.awt.Button.getActionListeners() definition code for java.awt.Button.getActionListeners() , ActionListener sample code for java.awt.event.ActionListener definition code for java.awt.event.ActionListener

removeActionListener sample code for java.awt.Button.removeActionListener(java.awt.event.ActionListener) definition code for java.awt.Button.removeActionListener(java.awt.event.ActionListener)

public void removeActionListener(ActionListener sample code for java.awt.event.ActionListener definition code for java.awt.event.ActionListener  l)
Removes the specified action listener so that it no longer receives action events from this button. Action events occur when a user presses or releases the mouse over this button. If l is null, no exception is thrown and no action is performed.

Parameters:
l - the action listener
Since:
JDK1.1
See Also:
addActionListener(java.awt.event.ActionListener) sample code for java.awt.Button.addActionListener(java.awt.event.ActionListener) definition code for java.awt.Button.addActionListener(java.awt.event.ActionListener) , getActionListeners() sample code for java.awt.Button.getActionListeners() definition code for java.awt.Button.getActionListeners() , ActionListener sample code for java.awt.event.ActionListener definition code for java.awt.event.ActionListener

getActionListeners sample code for java.awt.Button.getActionListeners() definition code for java.awt.Button.getActionListeners()

public ActionListener sample code for java.awt.event.ActionListener definition code for java.awt.event.ActionListener [] getActionListeners()
Returns an array of all the action listeners registered on this button.

Returns:
all of this button's ActionListeners or an empty array if no action listeners are currently registered
Since:
1.4
See Also:
addActionListener(java.awt.event.ActionListener) sample code for java.awt.Button.addActionListener(java.awt.event.ActionListener) definition code for java.awt.Button.addActionListener(java.awt.event.ActionListener) , removeActionListener(java.awt.event.ActionListener) sample code for java.awt.Button.removeActionListener(java.awt.event.ActionListener) definition code for java.awt.Button.removeActionListener(java.awt.event.ActionListener) , ActionListener sample code for java.awt.event.ActionListener definition code for java.awt.event.ActionListener

getListeners sample code for java.awt.Button.<T extends java.util.EventListener>getListeners(java.lang.Class<T>) definition code for java.awt.Button.<T extends java.util.EventListener>getListeners(java.lang.Class<T>)

public <T extends EventListener sample code for java.util.EventListener definition code for java.util.EventListener > T[] getListeners(Class sample code for java.lang.Class definition code for java.lang.Class <T> listenerType)
Returns an array of all the objects currently registered as FooListeners upon this Button. FooListeners are registered using the addFooListener method.

You can specify the listenerType argument with a class literal, such as FooListener.class. For example, you can query a Button b for its action listeners with the following code:

ActionListener[] als = (ActionListener[])(b.getListeners(ActionListener.class));
If no such listeners exist, this method returns an empty array.

Overrides:
getListeners sample code for java.awt.Component.getListeners(java.lang.Class) definition code for java.awt.Component.getListeners(java.lang.Class) in class Component sample code for java.awt.Component definition code for java.awt.Component
Parameters:
listenerType - the type of listeners requested; this parameter should specify an interface that descends from java.util.EventListener
Returns:
an array of all objects registered as FooListeners on this button, or an empty array if no such listeners have been added
Throws:
ClassCastException sample code for java.lang.ClassCastException definition code for java.lang.ClassCastException - if listenerType doesn't specify a class or interface that implements java.util.EventListener
Since:
1.3
See Also:
getActionListeners() sample code for java.awt.Button.getActionListeners() definition code for java.awt.Button.getActionListeners()

processEvent sample code for java.awt.Button.processEvent(java.awt.AWTEvent) definition code for java.awt.Button.processEvent(java.awt.AWTEvent)

protected void processEvent(AWTEvent sample code for java.awt.AWTEvent definition code for java.awt.AWTEvent  e)
Processes events on this button. If an event is an instance of ActionEvent, this method invokes the processActionEvent method. Otherwise, it invokes processEvent on the superclass.

Note that if the event parameter is null the behavior is unspecified and may result in an exception.

Overrides:
processEvent sample code for java.awt.Component.processEvent(java.awt.AWTEvent) definition code for java.awt.Component.processEvent(java.awt.AWTEvent) in class Component sample code for java.awt.Component definition code for java.awt.Component
Parameters:
e - the event
Since:
JDK1.1
See Also:
ActionEvent sample code for java.awt.event.ActionEvent definition code for java.awt.event.ActionEvent , processActionEvent(java.awt.event.ActionEvent) sample code for java.awt.Button.processActionEvent(java.awt.event.ActionEvent) definition code for java.awt.Button.processActionEvent(java.awt.event.ActionEvent)

processActionEvent sample code for java.awt.Button.processActionEvent(java.awt.event.ActionEvent) definition code for java.awt.Button.processActionEvent(java.awt.event.ActionEvent)

protected void processActionEvent(ActionEvent sample code for java.awt.event.ActionEvent definition code for java.awt.event.ActionEvent  e)
Processes action events occurring on this button by dispatching them to any registered ActionListener objects.

This method is not called unless action events are enabled for this button. Action events are enabled when one of the following occurs:

Note that if the event parameter is null the behavior is unspecified and may result in an exception.

Parameters:
e - the action event
Since:
JDK1.1
See Also:
ActionListener sample code for java.awt.event.ActionListener definition code for java.awt.event.ActionListener , addActionListener(java.awt.event.ActionListener) sample code for java.awt.Button.addActionListener(java.awt.event.ActionListener) definition code for java.awt.Button.addActionListener(java.awt.event.ActionListener) , Component.enableEvents(long) sample code for java.awt.Component.enableEvents(long) definition code for java.awt.Component.enableEvents(long)

paramString sample code for java.awt.Button.paramString() definition code for java.awt.Button.paramString()

protected String sample code for java.lang.String definition code for java.lang.String  paramString()
Returns a string representing the state of this Button. 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 sample code for java.awt.Component.paramString() definition code for java.awt.Component.paramString() in class Component sample code for java.awt.Component definition code for java.awt.Component
Returns:
the parameter string of this button

getAccessibleContext sample code for java.awt.Button.getAccessibleContext() definition code for java.awt.Button.getAccessibleContext()

public AccessibleContext sample code for javax.accessibility.AccessibleContext definition code for javax.accessibility.AccessibleContext  getAccessibleContext()
Gets the AccessibleContext associated with this Button. For buttons, the AccessibleContext takes the form of an AccessibleAWTButton. A new AccessibleAWTButton instance is created if necessary.

Specified by:
getAccessibleContext sample code for javax.accessibility.Accessible.getAccessibleContext() definition code for javax.accessibility.Accessible.getAccessibleContext() in interface Accessible sample code for javax.accessibility.Accessible definition code for javax.accessibility.Accessible
Overrides:
getAccessibleContext sample code for java.awt.Component.getAccessibleContext() definition code for java.awt.Component.getAccessibleContext() in class Component sample code for java.awt.Component definition code for java.awt.Component
Returns:
an AccessibleAWTButton that serves as the AccessibleContext of this Button