public class ContainerEvent extends ComponentEvent
Container events are provided for notification purposes ONLY; The AWT will automatically handle changes to the containers contents internally so that the program works properly regardless of whether the program is receiving these events or not.
This low-level event is generated by a container object (such as a
Panel) when a component is added to it or removed from it.
The event is passed to every
ContainerAdapter object which registered to receive such
events using the component's
ContainerAdapter objects implement the
ContainerListener interface.) Each such listener object
ContainerEvent when the event occurs.
An unspecified behavior will be caused if the
of any particular
ContainerEvent instance is not
in the range from
|Modifier and Type||Field and Description|
This event indicates that a component was added to the container.
This event indicates that a component was removed from the container.
The first number in the range of ids used for container events.
The last number in the range of ids used for container events.
COMPONENT_FIRST, COMPONENT_HIDDEN, COMPONENT_LAST, COMPONENT_MOVED, COMPONENT_RESIZED, COMPONENT_SHOWN
ACTION_EVENT_MASK, ADJUSTMENT_EVENT_MASK, COMPONENT_EVENT_MASK, consumed, CONTAINER_EVENT_MASK, FOCUS_EVENT_MASK, HIERARCHY_BOUNDS_EVENT_MASK, HIERARCHY_EVENT_MASK, id, INPUT_METHOD_EVENT_MASK, INVOCATION_EVENT_MASK, ITEM_EVENT_MASK, KEY_EVENT_MASK, MOUSE_EVENT_MASK, MOUSE_MOTION_EVENT_MASK, MOUSE_WHEEL_EVENT_MASK, PAINT_EVENT_MASK, RESERVED_ID_MAX, TEXT_EVENT_MASK, WINDOW_EVENT_MASK, WINDOW_FOCUS_EVENT_MASK, WINDOW_STATE_EVENT_MASK
|Constructor and Description|
|Modifier and Type||Method and Description|
Returns the component that was affected by the event.
Returns the originator of the event.
Returns a parameter string identifying this event.
public static final int CONTAINER_FIRST
public static final int CONTAINER_LAST
public static final int COMPONENT_ADDED
public static final int COMPONENT_REMOVED
This method throws an
Componentobject (container) that originated the event
id- An integer indicating the type of event. For information on allowable values, see the class description for
child- the component that was added or removed
public Container getContainer()
Containerobject that originated the event, or
nullif the object is not a
public Component getChild()
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