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The java.io Package - Data Streams

  • Suns Java Tutorial on I/O also breaks up the classes into Data Sink Streams and Data Processing Streams
  • a sink is a specialized data container ie strings, files, pipes
Sink Type Character Streams Byte Streams
Memory CharArrayReader,
CharArrayWriter		 ByteArrayInputStream,
ByteArrayOutputStream
StringReader,
StringWriter		 StringBufferInputStream
Pipe PipedReader,
PipedWriter		 PipedInputStream,
PipedOutputStream
File FileReader,
FileWriter		 FileInputStream,
FileOutputStream
  • data processing streams perform some type of operation ie buffering or character encoding
Process CharacterStreams Byte Streams
Buffering BufferedReader,
BufferedWriter		 BufferedInputStream,
BufferedOutputStream
Filtering FilterReader,
FilterWriter		 FilterInputStream,
FilterOutputStream
Converting between
Bytes and Characters		 InputStreamReader,
OutputStreamWriter		  
Concatenation   SequenceInputStream
Object Serialization   ObjectInputStream,
ObjectOutputStream
Data Conversion   DataInputStream,
DataOutputStream
Counting LineNumberReader LineNumberInputStream
Peeking Ahead PushbackReader PushbackInputStream
Printing PrintWriter PrintStream


Pkg Overview Data Streams Character Streams Byte Streams File Class Readers & Writers
Filter Streams Data Input/Output Reading & Writing Files Serialization