# Uses of Interface
java.io.ObjectStreamConstants

Packages that use ObjectStreamConstants
Package
Description
java.io
Provides for system input and output through data streams, serialization and the file system.

## Uses of ObjectStreamConstants in java.io

Classes in java.io that implement ObjectStreamConstants
Modifier and Type
Class
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.