AWTEventMulticaster (Sample Document)

java.lang.Object
- java.awt.AWTEventMulticaster

All Implemented Interfaces:

ActionListener, AdjustmentListener, ComponentListener, ContainerListener, FocusListener, HierarchyBoundsListener, HierarchyListener, InputMethodListener, ItemListener, KeyListener, MouseListener, MouseMotionListener, MouseWheelListener, TextListener, WindowFocusListener, WindowListener, WindowStateListener, java.util.EventListener

public class AWTEventMulticaster extends java.lang.Object implements ComponentListener, ContainerListener, FocusListener, KeyListener, MouseListener, MouseMotionListener, WindowListener, WindowFocusListener, WindowStateListener, ActionListener, ItemListener, AdjustmentListener, TextListener, InputMethodListener, HierarchyListener, HierarchyBoundsListener, MouseWheelListener
AWTEventMulticaster implements efficient and thread-safe multi-cast event dispatching for the AWT events defined in the java.awt.event package.
The following example illustrates how to use this class:
```
 public myComponent extends Component {
     ActionListener actionListener = null;

     public synchronized void addActionListener(ActionListener l) {
         actionListener = AWTEventMulticaster.add(actionListener, l);
     }
     public synchronized void removeActionListener(ActionListener l) {
         actionListener = AWTEventMulticaster.remove(actionListener, l);
     }
     public void processEvent(AWTEvent e) {
         // when event occurs which causes "action" semantic
         ActionListener listener = actionListener;
         if (listener != null) {
             listener.actionPerformed(new ActionEvent());
         }
     }
 }
 
```
The important point to note is the first argument to the add and remove methods is the field maintaining the listeners. In addition you must assign the result of the add and remove methods to the field maintaining the listeners.
AWTEventMulticaster is implemented as a pair of EventListeners that are set at construction time. AWTEventMulticaster is immutable. The add and remove methods do not alter AWTEventMulticaster in anyway. If necessary, a new AWTEventMulticaster is created. In this way it is safe to add and remove listeners during the process of an event dispatching. However, event listeners added during the process of an event dispatch operation are not notified of the event currently being dispatched.
All of the add methods allow null arguments. If the first argument is null, the second argument is returned. If the first argument is not null and the second argument is null, the first argument is returned. If both arguments are non-null, a new AWTEventMulticaster is created using the two arguments and returned.
For the remove methods that take two arguments, the following is returned:
- null, if the first argument is null, or the arguments are equal, by way of ==.
- the first argument, if the first argument is not an instance of AWTEventMulticaster.
- result of invoking remove(EventListener) on the first argument, supplying the second argument to the remove(EventListener) method.
Swing makes use of EventListenerList for similar logic. Refer to it for details.
Since:

1.1

See Also:
EventListenerList

Fields
	Modifier and Type	Field and Description
	a	`protected java.util.EventListener` a protected final java.util.EventListener a
	b	`protected java.util.EventListener` b protected final java.util.EventListener b

Static Methods
	Modifier and Type	Static Method and Description
	add	`static ActionListener` add(ActionListener a, ActionListener b) Adds action-listener-a with action-listener-b and returns the resulting multicast listener. public static ActionListener add(ActionListener a, ActionListener b) Adds action-listener-a with action-listener-b and returns the resulting multicast listener. Parameters: `a` - action-listener-a `b` - action-listener-b
	add	`static AdjustmentListener` add(AdjustmentListener a, AdjustmentListener b) Adds adjustment-listener-a with adjustment-listener-b and returns the resulting multicast listener. public static AdjustmentListener add(AdjustmentListener a, AdjustmentListener b) Adds adjustment-listener-a with adjustment-listener-b and returns the resulting multicast listener. Parameters: `a` - adjustment-listener-a `b` - adjustment-listener-b
	add	`static ComponentListener` add(ComponentListener a, ComponentListener b) Adds component-listener-a with component-listener-b and returns the resulting multicast listener. public static ComponentListener add(ComponentListener a, ComponentListener b) Adds component-listener-a with component-listener-b and returns the resulting multicast listener. Parameters: `a` - component-listener-a `b` - component-listener-b
	add	`static ContainerListener` add(ContainerListener a, ContainerListener b) Adds container-listener-a with container-listener-b and returns the resulting multicast listener. public static ContainerListener add(ContainerListener a, ContainerListener b) Adds container-listener-a with container-listener-b and returns the resulting multicast listener. Parameters: `a` - container-listener-a `b` - container-listener-b
	add	`static FocusListener` add(FocusListener a, FocusListener b) Adds focus-listener-a with focus-listener-b and returns the resulting multicast listener. public static FocusListener add(FocusListener a, FocusListener b) Adds focus-listener-a with focus-listener-b and returns the resulting multicast listener. Parameters: `a` - focus-listener-a `b` - focus-listener-b
	add	`static HierarchyBoundsListener` add(HierarchyBoundsListener a, HierarchyBoundsListener b) Adds hierarchy-bounds-listener-a with hierarchy-bounds-listener-b and returns the resulting multicast listener. public static HierarchyBoundsListener add(HierarchyBoundsListener a, HierarchyBoundsListener b) Adds hierarchy-bounds-listener-a with hierarchy-bounds-listener-b and returns the resulting multicast listener. Parameters: `a` - hierarchy-bounds-listener-a `b` - hierarchy-bounds-listener-b Since: 1.3
	add	`static HierarchyListener` add(HierarchyListener a, HierarchyListener b) Adds hierarchy-listener-a with hierarchy-listener-b and returns the resulting multicast listener. public static HierarchyListener add(HierarchyListener a, HierarchyListener b) Adds hierarchy-listener-a with hierarchy-listener-b and returns the resulting multicast listener. Parameters: `a` - hierarchy-listener-a `b` - hierarchy-listener-b Since: 1.3
	add	`static InputMethodListener` add(InputMethodListener a, InputMethodListener b) Adds input-method-listener-a with input-method-listener-b and returns the resulting multicast listener. public static InputMethodListener add(InputMethodListener a, InputMethodListener b) Adds input-method-listener-a with input-method-listener-b and returns the resulting multicast listener. Parameters: `a` - input-method-listener-a `b` - input-method-listener-b
	add	`static ItemListener` add(ItemListener a, ItemListener b) Adds item-listener-a with item-listener-b and returns the resulting multicast listener. public static ItemListener add(ItemListener a, ItemListener b) Adds item-listener-a with item-listener-b and returns the resulting multicast listener. Parameters: `a` - item-listener-a `b` - item-listener-b
	add	`static KeyListener` add(KeyListener a, KeyListener b) Adds key-listener-a with key-listener-b and returns the resulting multicast listener. public static KeyListener add(KeyListener a, KeyListener b) Adds key-listener-a with key-listener-b and returns the resulting multicast listener. Parameters: `a` - key-listener-a `b` - key-listener-b
	add	`static MouseListener` add(MouseListener a, MouseListener b) Adds mouse-listener-a with mouse-listener-b and returns the resulting multicast listener. public static MouseListener add(MouseListener a, MouseListener b) Adds mouse-listener-a with mouse-listener-b and returns the resulting multicast listener. Parameters: `a` - mouse-listener-a `b` - mouse-listener-b
	add	`static MouseMotionListener` add(MouseMotionListener a, MouseMotionListener b) Adds mouse-motion-listener-a with mouse-motion-listener-b and returns the resulting multicast listener. public static MouseMotionListener add(MouseMotionListener a, MouseMotionListener b) Adds mouse-motion-listener-a with mouse-motion-listener-b and returns the resulting multicast listener. Parameters: `a` - mouse-motion-listener-a `b` - mouse-motion-listener-b
	add	`static MouseWheelListener` add(MouseWheelListener a, MouseWheelListener b) Adds mouse-wheel-listener-a with mouse-wheel-listener-b and returns the resulting multicast listener. public static MouseWheelListener add(MouseWheelListener a, MouseWheelListener b) Adds mouse-wheel-listener-a with mouse-wheel-listener-b and returns the resulting multicast listener. Parameters: `a` - mouse-wheel-listener-a `b` - mouse-wheel-listener-b Since: 1.4
	add	`static TextListener` add(TextListener a, TextListener b) public static TextListener add(TextListener a, TextListener b)
	add	`static WindowFocusListener` add(WindowFocusListener a, WindowFocusListener b) Adds window-focus-listener-a with window-focus-listener-b and returns the resulting multicast listener. public static WindowFocusListener add(WindowFocusListener a, WindowFocusListener b) Adds window-focus-listener-a with window-focus-listener-b and returns the resulting multicast listener. Parameters: `a` - window-focus-listener-a `b` - window-focus-listener-b Since: 1.4
	add	`static WindowListener` add(WindowListener a, WindowListener b) Adds window-listener-a with window-listener-b and returns the resulting multicast listener. public static WindowListener add(WindowListener a, WindowListener b) Adds window-listener-a with window-listener-b and returns the resulting multicast listener. Parameters: `a` - window-listener-a `b` - window-listener-b
	add	`static WindowStateListener` add(WindowStateListener a, WindowStateListener b) Adds window-state-listener-a with window-state-listener-b and returns the resulting multicast listener. public static WindowStateListener add(WindowStateListener a, WindowStateListener b) Adds window-state-listener-a with window-state-listener-b and returns the resulting multicast listener. Parameters: `a` - window-state-listener-a `b` - window-state-listener-b Since: 1.4
	addInternal	`protected static java.util.EventListener` addInternal(java.util.EventListener a, java.util.EventListener b) Returns the resulting multicast listener from adding listener-a and listener-b together. protected static java.util.EventListener addInternal(java.util.EventListener a, java.util.EventListener b) Returns the resulting multicast listener from adding listener-a and listener-b together. If listener-a is null, it returns listener-b; If listener-b is null, it returns listener-a If neither are null, then it creates and returns a new AWTEventMulticaster instance which chains a with b. Parameters: `a` - event listener-a `b` - event listener-b
	getListeners	`static <T extends java.util.EventListener> T[]` getListeners(java.util.EventListener l, java.lang.Class<T> listenerType) Returns an array of all the objects chained as `FooListener`s by the specified `java.util.EventListener`. public static <T extends java.util.EventListener> T[] getListeners(java.util.EventListener l, java.lang.Class<T> listenerType) Returns an array of all the objects chained as `FooListener`s by the specified `java.util.EventListener`. `FooListener`s are chained by the `AWTEventMulticaster` using the `addFooListener` method. If a `null` listener is specified, this method returns an empty array. If the specified listener is not an instance of `AWTEventMulticaster`, this method returns an array which contains only the specified listener. If no such listeners are chanined, this method returns an empty array. Parameters: `l` - the specified `java.util.EventListener` `listenerType` - the type of listeners requested; this parameter should specify an interface that descends from `java.util.EventListener` Returns: an array of all objects chained as `FooListener`s by the specified multicast listener, or an empty array if no such listeners have been chained by the specified multicast listener Throws: `java.lang.NullPointerException` - if the specified `listenertype` parameter is `null` `java.lang.ClassCastException` - if `listenerType` doesn't specify a class or interface that implements `java.util.EventListener` Since: 1.4
	remove	`static ActionListener` remove(ActionListener l, ActionListener oldl) Removes the old action-listener from action-listener-l and returns the resulting multicast listener. public static ActionListener remove(ActionListener l, ActionListener oldl) Removes the old action-listener from action-listener-l and returns the resulting multicast listener. Parameters: `l` - action-listener-l `oldl` - the action-listener being removed
	remove	`static AdjustmentListener` remove(AdjustmentListener l, AdjustmentListener oldl) Removes the old adjustment-listener from adjustment-listener-l and returns the resulting multicast listener. public static AdjustmentListener remove(AdjustmentListener l, AdjustmentListener oldl) Removes the old adjustment-listener from adjustment-listener-l and returns the resulting multicast listener. Parameters: `l` - adjustment-listener-l `oldl` - the adjustment-listener being removed
	remove	`static ComponentListener` remove(ComponentListener l, ComponentListener oldl) Removes the old component-listener from component-listener-l and returns the resulting multicast listener. public static ComponentListener remove(ComponentListener l, ComponentListener oldl) Removes the old component-listener from component-listener-l and returns the resulting multicast listener. Parameters: `l` - component-listener-l `oldl` - the component-listener being removed
	remove	`static ContainerListener` remove(ContainerListener l, ContainerListener oldl) Removes the old container-listener from container-listener-l and returns the resulting multicast listener. public static ContainerListener remove(ContainerListener l, ContainerListener oldl) Removes the old container-listener from container-listener-l and returns the resulting multicast listener. Parameters: `l` - container-listener-l `oldl` - the container-listener being removed
	remove	`static FocusListener` remove(FocusListener l, FocusListener oldl) Removes the old focus-listener from focus-listener-l and returns the resulting multicast listener. public static FocusListener remove(FocusListener l, FocusListener oldl) Removes the old focus-listener from focus-listener-l and returns the resulting multicast listener. Parameters: `l` - focus-listener-l `oldl` - the focus-listener being removed
	remove	`static HierarchyBoundsListener` remove(HierarchyBoundsListener l, HierarchyBoundsListener oldl) Removes the old hierarchy-bounds-listener from hierarchy-bounds-listener-l and returns the resulting multicast listener. public static HierarchyBoundsListener remove(HierarchyBoundsListener l, HierarchyBoundsListener oldl) Removes the old hierarchy-bounds-listener from hierarchy-bounds-listener-l and returns the resulting multicast listener. Parameters: `l` - hierarchy-bounds-listener-l `oldl` - the hierarchy-bounds-listener being removed Since: 1.3
	remove	`static HierarchyListener` remove(HierarchyListener l, HierarchyListener oldl) Removes the old hierarchy-listener from hierarchy-listener-l and returns the resulting multicast listener. public static HierarchyListener remove(HierarchyListener l, HierarchyListener oldl) Removes the old hierarchy-listener from hierarchy-listener-l and returns the resulting multicast listener. Parameters: `l` - hierarchy-listener-l `oldl` - the hierarchy-listener being removed Since: 1.3
	remove	`static InputMethodListener` remove(InputMethodListener l, InputMethodListener oldl) Removes the old input-method-listener from input-method-listener-l and returns the resulting multicast listener. public static InputMethodListener remove(InputMethodListener l, InputMethodListener oldl) Removes the old input-method-listener from input-method-listener-l and returns the resulting multicast listener. Parameters: `l` - input-method-listener-l `oldl` - the input-method-listener being removed
	remove	`static ItemListener` remove(ItemListener l, ItemListener oldl) Removes the old item-listener from item-listener-l and returns the resulting multicast listener. public static ItemListener remove(ItemListener l, ItemListener oldl) Removes the old item-listener from item-listener-l and returns the resulting multicast listener. Parameters: `l` - item-listener-l `oldl` - the item-listener being removed
	remove	`static KeyListener` remove(KeyListener l, KeyListener oldl) Removes the old key-listener from key-listener-l and returns the resulting multicast listener. public static KeyListener remove(KeyListener l, KeyListener oldl) Removes the old key-listener from key-listener-l and returns the resulting multicast listener. Parameters: `l` - key-listener-l `oldl` - the key-listener being removed
	remove	`static MouseListener` remove(MouseListener l, MouseListener oldl) Removes the old mouse-listener from mouse-listener-l and returns the resulting multicast listener. public static MouseListener remove(MouseListener l, MouseListener oldl) Removes the old mouse-listener from mouse-listener-l and returns the resulting multicast listener. Parameters: `l` - mouse-listener-l `oldl` - the mouse-listener being removed
	remove	`static MouseMotionListener` remove(MouseMotionListener l, MouseMotionListener oldl) Removes the old mouse-motion-listener from mouse-motion-listener-l and returns the resulting multicast listener. public static MouseMotionListener remove(MouseMotionListener l, MouseMotionListener oldl) Removes the old mouse-motion-listener from mouse-motion-listener-l and returns the resulting multicast listener. Parameters: `l` - mouse-motion-listener-l `oldl` - the mouse-motion-listener being removed
	remove	`static MouseWheelListener` remove(MouseWheelListener l, MouseWheelListener oldl) Removes the old mouse-wheel-listener from mouse-wheel-listener-l and returns the resulting multicast listener. public static MouseWheelListener remove(MouseWheelListener l, MouseWheelListener oldl) Removes the old mouse-wheel-listener from mouse-wheel-listener-l and returns the resulting multicast listener. Parameters: `l` - mouse-wheel-listener-l `oldl` - the mouse-wheel-listener being removed Since: 1.4
	remove	`static TextListener` remove(TextListener l, TextListener oldl) public static TextListener remove(TextListener l, TextListener oldl)
	remove	`static WindowFocusListener` remove(WindowFocusListener l, WindowFocusListener oldl) Removes the old window-focus-listener from window-focus-listener-l and returns the resulting multicast listener. public static WindowFocusListener remove(WindowFocusListener l, WindowFocusListener oldl) Removes the old window-focus-listener from window-focus-listener-l and returns the resulting multicast listener. Parameters: `l` - window-focus-listener-l `oldl` - the window-focus-listener being removed Since: 1.4
	remove	`static WindowListener` remove(WindowListener l, WindowListener oldl) Removes the old window-listener from window-listener-l and returns the resulting multicast listener. public static WindowListener remove(WindowListener l, WindowListener oldl) Removes the old window-listener from window-listener-l and returns the resulting multicast listener. Parameters: `l` - window-listener-l `oldl` - the window-listener being removed
	remove	`static WindowStateListener` remove(WindowStateListener l, WindowStateListener oldl) Removes the old window-state-listener from window-state-listener-l and returns the resulting multicast listener. public static WindowStateListener remove(WindowStateListener l, WindowStateListener oldl) Removes the old window-state-listener from window-state-listener-l and returns the resulting multicast listener. Parameters: `l` - window-state-listener-l `oldl` - the window-state-listener being removed Since: 1.4
	removeInternal	`protected static java.util.EventListener` removeInternal(java.util.EventListener l, java.util.EventListener oldl) Returns the resulting multicast listener after removing the old listener from listener-l. protected static java.util.EventListener removeInternal(java.util.EventListener l, java.util.EventListener oldl) Returns the resulting multicast listener after removing the old listener from listener-l. If listener-l equals the old listener OR listener-l is null, returns null. Else if listener-l is an instance of AWTEventMulticaster, then it removes the old listener from it. Else, returns listener l. Parameters: `l` - the listener being removed from `oldl` - the listener being removed
	save	`protected static void` save(java.io.ObjectOutputStream s, java.lang.String k, java.util.EventListener l) protected static void save(java.io.ObjectOutputStream s, java.lang.String k, java.util.EventListener l) throws java.io.IOException

Constructors
	Modifier	Constructor and Description
	AWTEventMulticaster	`protected` AWTEventMulticaster(java.util.EventListener a, java.util.EventListener b) Creates an event multicaster instance which chains listener-a with listener-b. protected AWTEventMulticaster(java.util.EventListener a, java.util.EventListener b) Creates an event multicaster instance which chains listener-a with listener-b. Input parameters `a` and `b` should not be `null`, though implementations may vary in choosing whether or not to throw `NullPointerException` in that case. Parameters: `a` - listener-a `b` - listener-b

Methods
	Modifier and Type	Method and Description
	actionPerformed	`void` actionPerformed(ActionEvent e) Handles the actionPerformed event by invoking the actionPerformed methods on listener-a and listener-b. public void actionPerformed(ActionEvent e) Handles the actionPerformed event by invoking the actionPerformed methods on listener-a and listener-b. Specified by: `actionPerformed` in interface `ActionListener` Parameters: `e` - the action event
	adjustmentValueChanged	`void` adjustmentValueChanged(AdjustmentEvent e) Handles the adjustmentValueChanged event by invoking the adjustmentValueChanged methods on listener-a and listener-b. public void adjustmentValueChanged(AdjustmentEvent e) Handles the adjustmentValueChanged event by invoking the adjustmentValueChanged methods on listener-a and listener-b. Specified by: `adjustmentValueChanged` in interface `AdjustmentListener` Parameters: `e` - the adjustment event
	ancestorMoved	`void` ancestorMoved(HierarchyEvent e) Handles the ancestorMoved event by invoking the ancestorMoved methods on listener-a and listener-b. public void ancestorMoved(HierarchyEvent e) Handles the ancestorMoved event by invoking the ancestorMoved methods on listener-a and listener-b. Specified by: `ancestorMoved` in interface `HierarchyBoundsListener` Parameters: `e` - the item event Since: 1.3
	ancestorResized	`void` ancestorResized(HierarchyEvent e) Handles the ancestorResized event by invoking the ancestorResized methods on listener-a and listener-b. public void ancestorResized(HierarchyEvent e) Handles the ancestorResized event by invoking the ancestorResized methods on listener-a and listener-b. Specified by: `ancestorResized` in interface `HierarchyBoundsListener` Parameters: `e` - the item event Since: 1.3
	caretPositionChanged	`void` caretPositionChanged(InputMethodEvent e) Handles the caretPositionChanged event by invoking the caretPositionChanged methods on listener-a and listener-b. public void caretPositionChanged(InputMethodEvent e) Handles the caretPositionChanged event by invoking the caretPositionChanged methods on listener-a and listener-b. Specified by: `caretPositionChanged` in interface `InputMethodListener` Parameters: `e` - the item event
	componentAdded	`void` componentAdded(ContainerEvent e) Handles the componentAdded container event by invoking the componentAdded methods on listener-a and listener-b. public void componentAdded(ContainerEvent e) Handles the componentAdded container event by invoking the componentAdded methods on listener-a and listener-b. Specified by: `componentAdded` in interface `ContainerListener` Parameters: `e` - the component event
	componentHidden	`void` componentHidden(ComponentEvent e) Handles the componentHidden event by invoking the componentHidden methods on listener-a and listener-b. public void componentHidden(ComponentEvent e) Handles the componentHidden event by invoking the componentHidden methods on listener-a and listener-b. Specified by: `componentHidden` in interface `ComponentListener` Parameters: `e` - the component event
	componentMoved	`void` componentMoved(ComponentEvent e) Handles the componentMoved event by invoking the componentMoved methods on listener-a and listener-b. public void componentMoved(ComponentEvent e) Handles the componentMoved event by invoking the componentMoved methods on listener-a and listener-b. Specified by: `componentMoved` in interface `ComponentListener` Parameters: `e` - the component event
	componentRemoved	`void` componentRemoved(ContainerEvent e) Handles the componentRemoved container event by invoking the componentRemoved methods on listener-a and listener-b. public void componentRemoved(ContainerEvent e) Handles the componentRemoved container event by invoking the componentRemoved methods on listener-a and listener-b. Specified by: `componentRemoved` in interface `ContainerListener` Parameters: `e` - the component event
	componentResized	`void` componentResized(ComponentEvent e) Handles the componentResized event by invoking the componentResized methods on listener-a and listener-b. public void componentResized(ComponentEvent e) Handles the componentResized event by invoking the componentResized methods on listener-a and listener-b. Specified by: `componentResized` in interface `ComponentListener` Parameters: `e` - the component event
	componentShown	`void` componentShown(ComponentEvent e) Handles the componentShown event by invoking the componentShown methods on listener-a and listener-b. public void componentShown(ComponentEvent e) Handles the componentShown event by invoking the componentShown methods on listener-a and listener-b. Specified by: `componentShown` in interface `ComponentListener` Parameters: `e` - the component event
	focusGained	`void` focusGained(FocusEvent e) Handles the focusGained event by invoking the focusGained methods on listener-a and listener-b. public void focusGained(FocusEvent e) Handles the focusGained event by invoking the focusGained methods on listener-a and listener-b. Specified by: `focusGained` in interface `FocusListener` Parameters: `e` - the focus event
	focusLost	`void` focusLost(FocusEvent e) Handles the focusLost event by invoking the focusLost methods on listener-a and listener-b. public void focusLost(FocusEvent e) Handles the focusLost event by invoking the focusLost methods on listener-a and listener-b. Specified by: `focusLost` in interface `FocusListener` Parameters: `e` - the focus event
	hierarchyChanged	`void` hierarchyChanged(HierarchyEvent e) Handles the hierarchyChanged event by invoking the hierarchyChanged methods on listener-a and listener-b. public void hierarchyChanged(HierarchyEvent e) Handles the hierarchyChanged event by invoking the hierarchyChanged methods on listener-a and listener-b. Specified by: `hierarchyChanged` in interface `HierarchyListener` Parameters: `e` - the item event Since: 1.3 See Also: `HierarchyEvent.getChangeFlags()`
	inputMethodTextChanged	`void` inputMethodTextChanged(InputMethodEvent e) Handles the inputMethodTextChanged event by invoking the inputMethodTextChanged methods on listener-a and listener-b. public void inputMethodTextChanged(InputMethodEvent e) Handles the inputMethodTextChanged event by invoking the inputMethodTextChanged methods on listener-a and listener-b. Specified by: `inputMethodTextChanged` in interface `InputMethodListener` Parameters: `e` - the item event
	itemStateChanged	`void` itemStateChanged(ItemEvent e) Handles the itemStateChanged event by invoking the itemStateChanged methods on listener-a and listener-b. public void itemStateChanged(ItemEvent e) Handles the itemStateChanged event by invoking the itemStateChanged methods on listener-a and listener-b. Specified by: `itemStateChanged` in interface `ItemListener` Parameters: `e` - the item event
	keyPressed	`void` keyPressed(KeyEvent e) Handles the keyPressed event by invoking the keyPressed methods on listener-a and listener-b. public void keyPressed(KeyEvent e) Handles the keyPressed event by invoking the keyPressed methods on listener-a and listener-b. Specified by: `keyPressed` in interface `KeyListener` Parameters: `e` - the key event
	keyReleased	`void` keyReleased(KeyEvent e) Handles the keyReleased event by invoking the keyReleased methods on listener-a and listener-b. public void keyReleased(KeyEvent e) Handles the keyReleased event by invoking the keyReleased methods on listener-a and listener-b. Specified by: `keyReleased` in interface `KeyListener` Parameters: `e` - the key event
	keyTyped	`void` keyTyped(KeyEvent e) Handles the keyTyped event by invoking the keyTyped methods on listener-a and listener-b. public void keyTyped(KeyEvent e) Handles the keyTyped event by invoking the keyTyped methods on listener-a and listener-b. Specified by: `keyTyped` in interface `KeyListener` Parameters: `e` - the key event
	mouseClicked	`void` mouseClicked(MouseEvent e) Handles the mouseClicked event by invoking the mouseClicked methods on listener-a and listener-b. public void mouseClicked(MouseEvent e) Handles the mouseClicked event by invoking the mouseClicked methods on listener-a and listener-b. Specified by: `mouseClicked` in interface `MouseListener` Parameters: `e` - the mouse event
	mouseDragged	`void` mouseDragged(MouseEvent e) Handles the mouseDragged event by invoking the mouseDragged methods on listener-a and listener-b. public void mouseDragged(MouseEvent e) Handles the mouseDragged event by invoking the mouseDragged methods on listener-a and listener-b. Specified by: `mouseDragged` in interface `MouseMotionListener` Parameters: `e` - the mouse event
	mouseEntered	`void` mouseEntered(MouseEvent e) Handles the mouseEntered event by invoking the mouseEntered methods on listener-a and listener-b. public void mouseEntered(MouseEvent e) Handles the mouseEntered event by invoking the mouseEntered methods on listener-a and listener-b. Specified by: `mouseEntered` in interface `MouseListener` Parameters: `e` - the mouse event
	mouseExited	`void` mouseExited(MouseEvent e) Handles the mouseExited event by invoking the mouseExited methods on listener-a and listener-b. public void mouseExited(MouseEvent e) Handles the mouseExited event by invoking the mouseExited methods on listener-a and listener-b. Specified by: `mouseExited` in interface `MouseListener` Parameters: `e` - the mouse event
	mouseMoved	`void` mouseMoved(MouseEvent e) Handles the mouseMoved event by invoking the mouseMoved methods on listener-a and listener-b. public void mouseMoved(MouseEvent e) Handles the mouseMoved event by invoking the mouseMoved methods on listener-a and listener-b. Specified by: `mouseMoved` in interface `MouseMotionListener` Parameters: `e` - the mouse event
	mousePressed	`void` mousePressed(MouseEvent e) Handles the mousePressed event by invoking the mousePressed methods on listener-a and listener-b. public void mousePressed(MouseEvent e) Handles the mousePressed event by invoking the mousePressed methods on listener-a and listener-b. Specified by: `mousePressed` in interface `MouseListener` Parameters: `e` - the mouse event
	mouseReleased	`void` mouseReleased(MouseEvent e) Handles the mouseReleased event by invoking the mouseReleased methods on listener-a and listener-b. public void mouseReleased(MouseEvent e) Handles the mouseReleased event by invoking the mouseReleased methods on listener-a and listener-b. Specified by: `mouseReleased` in interface `MouseListener` Parameters: `e` - the mouse event
	mouseWheelMoved	`void` mouseWheelMoved(MouseWheelEvent e) Handles the mouseWheelMoved event by invoking the mouseWheelMoved methods on listener-a and listener-b. public void mouseWheelMoved(MouseWheelEvent e) Handles the mouseWheelMoved event by invoking the mouseWheelMoved methods on listener-a and listener-b. Specified by: `mouseWheelMoved` in interface `MouseWheelListener` Parameters: `e` - the mouse event Since: 1.4 See Also: `MouseWheelEvent`
	remove	`protected java.util.EventListener` remove(java.util.EventListener oldl) Removes a listener from this multicaster. protected java.util.EventListener remove(java.util.EventListener oldl) Removes a listener from this multicaster. The returned multicaster contains all the listeners in this multicaster with the exception of all occurrences of `oldl`. If the resulting multicaster contains only one regular listener the regular listener may be returned. If the resulting multicaster is empty, then `null` may be returned instead. No exception is thrown if `oldl` is `null`. Parameters: `oldl` - the listener to be removed Returns: resulting listener
	saveInternal	`protected void` saveInternal(java.io.ObjectOutputStream s, java.lang.String k) protected void saveInternal(java.io.ObjectOutputStream s, java.lang.String k) throws java.io.IOException
	textValueChanged	`void` textValueChanged(TextEvent e) Invoked when the value of the text has changed. public void textValueChanged(TextEvent e) Description copied from interface: `TextListener` Invoked when the value of the text has changed. The code written for this method performs the operations that need to occur when text changes. Specified by: `textValueChanged` in interface `TextListener`
	windowActivated	`void` windowActivated(WindowEvent e) Handles the windowActivated event by invoking the windowActivated methods on listener-a and listener-b. public void windowActivated(WindowEvent e) Handles the windowActivated event by invoking the windowActivated methods on listener-a and listener-b. Specified by: `windowActivated` in interface `WindowListener` Parameters: `e` - the window event
	windowClosed	`void` windowClosed(WindowEvent e) Handles the windowClosed event by invoking the windowClosed methods on listener-a and listener-b. public void windowClosed(WindowEvent e) Handles the windowClosed event by invoking the windowClosed methods on listener-a and listener-b. Specified by: `windowClosed` in interface `WindowListener` Parameters: `e` - the window event
	windowClosing	`void` windowClosing(WindowEvent e) Handles the windowClosing event by invoking the windowClosing methods on listener-a and listener-b. public void windowClosing(WindowEvent e) Handles the windowClosing event by invoking the windowClosing methods on listener-a and listener-b. Specified by: `windowClosing` in interface `WindowListener` Parameters: `e` - the window event
	windowDeactivated	`void` windowDeactivated(WindowEvent e) Handles the windowDeactivated event by invoking the windowDeactivated methods on listener-a and listener-b. public void windowDeactivated(WindowEvent e) Handles the windowDeactivated event by invoking the windowDeactivated methods on listener-a and listener-b. Specified by: `windowDeactivated` in interface `WindowListener` Parameters: `e` - the window event
	windowDeiconified	`void` windowDeiconified(WindowEvent e) Handles the windowDeiconfied event by invoking the windowDeiconified methods on listener-a and listener-b. public void windowDeiconified(WindowEvent e) Handles the windowDeiconfied event by invoking the windowDeiconified methods on listener-a and listener-b. Specified by: `windowDeiconified` in interface `WindowListener` Parameters: `e` - the window event
	windowGainedFocus	`void` windowGainedFocus(WindowEvent e) Handles the windowGainedFocus event by invoking the windowGainedFocus methods on listener-a and listener-b. public void windowGainedFocus(WindowEvent e) Handles the windowGainedFocus event by invoking the windowGainedFocus methods on listener-a and listener-b. Specified by: `windowGainedFocus` in interface `WindowFocusListener` Parameters: `e` - the window event Since: 1.4
	windowIconified	`void` windowIconified(WindowEvent e) Handles the windowIconified event by invoking the windowIconified methods on listener-a and listener-b. public void windowIconified(WindowEvent e) Handles the windowIconified event by invoking the windowIconified methods on listener-a and listener-b. Specified by: `windowIconified` in interface `WindowListener` Parameters: `e` - the window event See Also: `Frame.setIconImage(java.awt.Image)`
	windowLostFocus	`void` windowLostFocus(WindowEvent e) Handles the windowLostFocus event by invoking the windowLostFocus methods on listener-a and listener-b. public void windowLostFocus(WindowEvent e) Handles the windowLostFocus event by invoking the windowLostFocus methods on listener-a and listener-b. Specified by: `windowLostFocus` in interface `WindowFocusListener` Parameters: `e` - the window event Since: 1.4
	windowOpened	`void` windowOpened(WindowEvent e) Handles the windowOpened event by invoking the windowOpened methods on listener-a and listener-b. public void windowOpened(WindowEvent e) Handles the windowOpened event by invoking the windowOpened methods on listener-a and listener-b. Specified by: `windowOpened` in interface `WindowListener` Parameters: `e` - the window event
	windowStateChanged	`void` windowStateChanged(WindowEvent e) Handles the windowStateChanged event by invoking the windowStateChanged methods on listener-a and listener-b. public void windowStateChanged(WindowEvent e) Handles the windowStateChanged event by invoking the windowStateChanged methods on listener-a and listener-b. Specified by: `windowStateChanged` in interface `WindowStateListener` Parameters: `e` - the window event Since: 1.4

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

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Class AWTEventMulticaster

Methods inherited from class java.lang.Object