JAVA IO流结构图概览

整理Java IO流的关系，并作图如下，以供参考。

下图基于JDK 1.8制作，其中需要注意的是StringBufferInputStream和LineNumberInputStream已被废弃。

详情如下：

1. StringBufferInputStream

@deprecated
This class does not properly convert characters into bytes. As of JDK 1.1, the preferred way to create a stream from a string is via the StringReader class.

由于该类无法准确的将字符转换为字节，因此建议用StringReader来取代使用。

2. LineNumberInputStream

@deprecated

This class incorrectly assumes that bytes adequately represent * characters. As of JDK 1.1, the preferred way to operate on * character streams is via the new character-stream classes, which * include a class for counting line numbers.

由于该类错误地认为字节能恰当地表示字符，因此推荐使用字符流的类来取代，即LineNumberReader。

Java IO流 Reader Writer InputStream OutputStream