| Package | Description | 
|---|---|
| javax.imageio | The main package of the Java Image I/O API. | 
| Modifier and Type | Field and Description | 
|---|---|
| protected List<IIOReadUpdateListener> | ImageReader. updateListenersA  Listof currently registeredIIOReadUpdateListeners, initialized by default tonull, which is synonymous with an emptyList. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | ImageReader. addIIOReadUpdateListener(IIOReadUpdateListener listener)Adds an  IIOReadUpdateListenerto the list of
 registered update listeners. | 
| void | ImageReader. removeIIOReadUpdateListener(IIOReadUpdateListener listener)Removes an  IIOReadUpdateListenerfrom the list of
 registered update listeners. | 
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