类层次结构
- java.lang.Object 
       
- javax.swing.undo.AbstractUndoableEdit (implements java.io.Serializable, javax.swing.undo.UndoableEdit) 
         
- javax.swing.undo.CompoundEdit 
           
- javax.swing.undo.UndoManager (implements javax.swing.event.UndoableEditListener)
 
 - javax.swing.undo.StateEdit
 
 - javax.swing.undo.CompoundEdit 
           
 - java.lang.Throwable (implements java.io.Serializable) 
         
- java.lang.异常 
           
- java.lang.RuntimeException 
             
- javax.swing.undo.CannotRedoException
 - javax.swing.undo.CannotUndoException
 
 
 - java.lang.RuntimeException 
             
 
 - java.lang.异常 
           
 - javax.swing.undo.UndoableEditSupport
 
 - javax.swing.undo.AbstractUndoableEdit (implements java.io.Serializable, javax.swing.undo.UndoableEdit) 
         
 
Interface Hierarchy
- javax.swing.undo.StateEditable
 - javax.swing.undo.UndoableEdit