ContainerListener
, EventListener
public abstract class ContainerAdapter extends Object implements ContainerListener
Extend this class to create a ContainerEvent
listener and override the methods for the events of interest. (If you implement the ContainerListener
interface, you have to define all of the methods in it. This abstract class defines null methods for them all, so you can only have to define methods for events you care about.)
Create a listener object using the extended class and then register it with a component using the component's addContainerListener
method. When the container's contents change because a component has been added or removed, the relevant method in the listener object is invoked, and the ContainerEvent
is passed to it.
Modifier | Constructor | Description |
---|---|---|
protected |
Constructs a ContainerAdapter . |
Modifier and Type | Method | Description |
---|---|---|
void |
componentAdded |
Invoked when a component has been added to the container. |
void |
componentRemoved |
Invoked when a component has been removed from the container. |
protected ContainerAdapter()
ContainerAdapter
.public void componentAdded(ContainerEvent e)
componentAdded
in interface ContainerListener
e
- the event to be processedpublic void componentRemoved(ContainerEvent e)
componentRemoved
in interface ContainerListener
e
- the event to be processed
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https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/java/awt/event/ContainerAdapter.html