| Package | Description | 
|---|---|
| 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. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | AbstractDocument.DefaultDocumentEvent. undo()Undoes a change. | 
| void | AbstractDocument.ElementEdit. undo()Undoes a change. | 
| void | DefaultStyledDocument.AttributeUndoableEdit. undo()Undoes a change. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | UndoableEdit. undo()Undo the edit. | 
| void | AbstractUndoableEdit. undo()Throws  CannotUndoExceptionifcanUndoreturnsfalse. | 
| void | UndoManager. undo()Undoes the appropriate edits. | 
| void | CompoundEdit. undo()Sends  undoto all containedUndoableEditsin the reverse of
 the order in which they were added. | 
| void | UndoManager. undoOrRedo()Convenience method that invokes one of  undoorredo. | 
| 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. | 
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