There are four types of streams: InputStream, OutputStream, Reader, and Writer.
- Reader. A stream to read characters.
- Writer. A stream to write characters.
- InputStream. A stream to read binary data.
- OutputStream. A stream to write binary data.
For better performance, use the buffered I/O classes:
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.