## Uses of Class
javax.swing.undo.CannotUndoException

Packages that use CannotUndoException
javax.swing.text: Provides classes and interfaces that deal with editable and noneditable text components.
javax.swing.undo: Allows developers to provide support for undo/redo in applications such as text editors.

### Uses of CannotUndoException in javax.swing.text

Methods in javax.swing.text that throw CannotUndoException
`void` AbstractDocument.DefaultDocumentEvent.`undo()` Undoes a change.
`void` AbstractDocument.ElementEdit.`undo()` Undoes a change.
`void` DefaultStyledDocument.AttributeUndoableEdit.`undo()` Undoes a change.

### Uses of CannotUndoException in javax.swing.undo

Methods in javax.swing.undo that throw CannotUndoException
`void` AbstractUndoableEdit.`undo()` Throws `CannotUndoException` if `canUndo` returns `false`.
`void` CompoundEdit.`undo()` Sends `undo` to all contained `UndoableEdits` in the reverse of the order in which they were added.
`void` UndoableEdit.`undo()` Undo the edit.
`void` UndoManager.`undo()` Undoes the appropriate edits.
`void` UndoManager.`undoOrRedo()` Convenience method that invokes one of `undo` or `redo`.
`protected void` UndoManager.`undoTo(UndoableEdit edit)` Undoes all changes from the index of the next edit to `edit`, updating the index of the next edit appropriately.