| 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 | Class and Description | 
|---|---|
| class  | AbstractDocument.DefaultDocumentEventStores document changes as the document is being
 modified. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | UndoManagerUndoManagermanages a list ofUndoableEdits,
 providing a way to undo or redo the appropriate edits. | 
| Modifier and Type | Field and Description | 
|---|---|
| protected CompoundEdit | UndoableEditSupport. compoundEdit | 
| Modifier and Type | Method and Description | 
|---|---|
| protected CompoundEdit | UndoableEditSupport. createCompoundEdit()Called only from  beginUpdate. | 
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