| 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 | 
|---|---|
UndoableEditListener[] | 
AbstractDocument.getUndoableEditListeners()
Returns an array of all the undoable edit listeners
 registered on this document. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
void | 
Document.addUndoableEditListener(UndoableEditListener listener)
Registers the given observer to begin receiving notifications
 when undoable edits are made to the document. 
 | 
void | 
AbstractDocument.addUndoableEditListener(UndoableEditListener listener)
Adds an undo listener for notification of any changes. 
 | 
void | 
Document.removeUndoableEditListener(UndoableEditListener listener)
Unregisters the given observer from the notification list
 so it will no longer receive updates. 
 | 
void | 
AbstractDocument.removeUndoableEditListener(UndoableEditListener listener)
Removes an undo listener. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
UndoManager
UndoManager manages a list of UndoableEdits,
 providing a way to undo or redo the appropriate edits. | 
| Modifier and Type | Field and Description | 
|---|---|
protected Vector<UndoableEditListener> | 
UndoableEditSupport.listeners  | 
| Modifier and Type | Method and Description | 
|---|---|
UndoableEditListener[] | 
UndoableEditSupport.getUndoableEditListeners()
Returns an array of all the  
UndoableEditListeners added
 to this UndoableEditSupport with addUndoableEditListener(). | 
| Modifier and Type | Method and Description | 
|---|---|
void | 
UndoableEditSupport.addUndoableEditListener(UndoableEditListener l)
Registers an  
UndoableEditListener. | 
void | 
UndoableEditSupport.removeUndoableEditListener(UndoableEditListener l)
Removes an  
UndoableEditListener. | 
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