## Uses of Interface
javax.swing.event.TreeWillExpandListener

Packages that use TreeWillExpandListener
javax.swing: Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.

### Uses of TreeWillExpandListener in javax.swing

Methods in javax.swing that return TreeWillExpandListener
`TreeWillExpandListener[]` JTree.`getTreeWillExpandListeners()` Returns an array of all the `TreeWillExpandListener`s added to this JTree with addTreeWillExpandListener().

Methods in javax.swing with parameters of type TreeWillExpandListener
`void` JTree.`addTreeWillExpandListener​(TreeWillExpandListener tel)` Adds a listener for `TreeWillExpand` events.
`void` JTree.`removeTreeWillExpandListener​(TreeWillExpandListener tel)` Removes a listener for `TreeWillExpand` events.