FilterInputStreams
Subclasses of FilterInputStream are used to convert a raw InputStream to one with added value. You can define your own filters but useful ones are already provided in java.io:
- BufferedInputStream -- establishes an intermediate buffer to service the stream
- DataInputStream -- has methods to input other data types besides bytes (char, double, boolean, etc.)
- PushbackInputStream -- allows one to "unread" a byte and put it back in the input stream
These streams may be "chained" for added functionality:
- DataInputStream in =
- new DataInputStream (new FileInputStream(file));
- or
- BufferedInputStream in =
- new BufferedInputStream (new FileInputStream(file));
- where file is a filename string.