| Package | Description | 
|---|---|
| java.io | 
 Provides for system input and output through data streams,
serialization and the file system. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
ObjectInputStream
An ObjectInputStream deserializes primitive data and objects previously
 written using an ObjectOutputStream. 
 | 
class  | 
ObjectOutputStream
An ObjectOutputStream writes primitive data types and graphs of Java objects
 to an OutputStream. 
 | 
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