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Java Tutorial » File » Introduction  
11.1.1.Input OutputPrevious/Next

There are four types of streams: InputStream, OutputStream, Reader, and Writer.

  1. Reader. A stream to read characters.
  2. Writer. A stream to write characters.
  3. InputStream. A stream to read binary data.
  4. OutputStream. A stream to write binary data.

For better performance, use the buffered I/O classes: BufferedInputStream, BufferedOutputStream, BufferedReader, and BufferedWriter.

Reading from and writing to a stream dictate that you do so sequentially. The java.io.RandomAccessFile is for non-sequential operations.

For object serialization and deserialization, you can use the ObjectInputStream and ObjectOutputStream classes.

11.1.Introduction
11.1.1. Input Output
11.1.2. Reading Binary Data
11.1.3. Writing Binary Data
11.1.4. OutputStream