java Streams and Serialization 详解

Streams and Serialization Streams and Serialization

Streams and Serialization Streams and Serialization

Unit 12

Unit ObjectivesUnit Objectives

•Look at streams and Java's stream classes

•Examine the use of streams

•Look at streams and Java's stream classes

•Examine the use of streams

StreamsStreams

•Streams allow data to be written to or read from an external

•InputStream / OutputStream classes and subclasses

–Character streams (16-bit unicode) operate on characters,

source

•There are two main types of streams:

–Byte streams (8-bit) operate on bytes and byte arrays

•InputStream / OutputStream classes and subclasses

reads/

writes

OperationsOperations

•Sequential operations on streams usually follow the same

–Data source

Class Hierarchy: Character Stream InputClass Hierarchy: Character Stream Input

InputStreamReader

PipedReader

StringReader

FileReader