Class java.io.FilterInputStream

java.lang.Object
   |
   +----java.io.InputStream
           |
           +----java.io.FilterInputStream

public class FilterInputStream
extends InputStream

This class is the superclass of all classes that filter input streams. These streams sit on top of an already existing input stream (the underlying input stream), but provide additional functionality.

The class FilterInputStream itself simply overrides all methods of InputStream with versions that pass all requests to the underlying input stream. Subclasses of FilterInputStream may further override some of these methods as well as provide additional methods and fields.