EventListener
BasicTreeUI.TreeExpansionHandler
, JTree.AccessibleJTree
public interface TreeExpansionListener extends EventListener
Modifier and Type | Method | Description |
---|---|---|
void |
treeCollapsed |
Called whenever an item in the tree has been collapsed. |
void |
treeExpanded |
Called whenever an item in the tree has been expanded. |
void treeExpanded(TreeExpansionEvent event)
event
- a TreeExpansionEvent
containing a TreePath
object for the expanded nodevoid treeCollapsed(TreeExpansionEvent event)
event
- a TreeExpansionEvent
containing a TreePath
object for the collapsed node
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https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/javax/swing/event/TreeExpansionListener.html