java.awt
Class Button
- Accessible, ImageObserver, MenuContainer, Serializable
This class provides a button widget for the AWT.
Button()- Initializes a new instance of
Button with no label.
|
Button(String label)- Initializes a new instance of
Button with the specified
label.
|
action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, extends EventListener> T[] getListeners, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getAccessibleContext, getAlignmentX, getAlignmentY, getBackground, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeys, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMinimumSize, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getPreferredSize, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusCycleRoot, isFocusOwner, isFocusTraversable, isFocusable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paint, paintAll, paramString, postEvent, preferredSize, prepareImage, prepareImage, print, printAll, processComponentEvent, processEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusTraversalKeys, setFocusTraversalKeysEnabled, setFocusable, setFont, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle, update, validate |
clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait |
Button
public Button()
Initializes a new instance of Button with no label.
Button
public Button(String label)
Initializes a new instance of Button with the specified
label. The action command name is also initialized to this value.
label - The label to display on the button.
addActionListener
public void addActionListener(ActionListener listener)
Adds a new entry to the list of listeners that will receive
action events from this button.
listener - The listener to add.
extends EventListener> T[] getListeners
public extends EventListener> T[] getListeners(Class listenerType)
Returns all registered EventListers of the given listenerType.
listenerType must be a subclass of EventListener, or a
ClassClassException is thrown.
- extends EventListener> T[] getListeners in interface Component
listenerType - the listener type to return
ClassCastException - If listenerType doesn't specify a class or
interface that implements @see java.util.EventListener.
getActionCommand
public String getActionCommand()
Returns the action command name for this button.
- The action command name for this button.
getLabel
public String getLabel()
Returns the label for this button.
- The label for this button.
processActionEvent
protected void processActionEvent(ActionEvent event)
This method dispatches an action event for this button to any
registered listeners.
event - The event to process.
processEvent
protected void processEvent(AWTEvent event)
Processes an event for this button. If the specified event is an
instance of ActionEvent, then the
processActionEvent() method is called to dispatch it
to any registered listeners. Otherwise, the superclass method
will be invoked. Note that this method will not be called at all
unless ActionEvent's are enabled. This will be done
implicitly if any listeners are added.
- processEvent in interface Component
event - The event to process.
removeActionListener
public void removeActionListener(ActionListener listener)
Removes the specified listener from the list of listeners that will
receive action events from this button.
listener - The listener to remove.
setActionCommand
public void setActionCommand(String actionCommand)
Sets the action command name for this button to the specified value.
actionCommand - The new action command name.
setLabel
public void setLabel(String label)
Sets the label for this button to the specified value.
label - The new label for this button.
Button.java -- AWT button widget
Copyright (C) 1999, 2002, 2004, 2005 Free Software Foundation, Inc.
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