java IO流

Java“流”小节

                                                                      ByteArrayInputStream从内存数组中读取字节

                                                                      FileInputStream从本地文件系统文件中读取字节   

                                                                      PipedInputStream从线程管道中读取字节

                                                  StringBufferInputStream 从字符串中读取字节

                                   InputStream             SequenceInputStream从两个或多个低级流中读取字节，到达

                                                                                                         结尾时，从一个转到另一个流

                                                                      System.in从用户控制台读取字节

     字节流                                             FilterInputStream过滤流，把基本流包裹起来

                                                                      FilterInputStream(InputStream)

                                                                               BufferedInputStream缓冲区读数据的访问及高效率

                                   OutputStream （略）    DataInputStream 从输入流读取基本数据类型

                                                                               LineNumberInputStream在翻译行结束符的基础上

                                                                               维护一个计数器，该计数器表明正在读取的是哪一行。

流                                                                          PushbackInputStream允许把数据字节向后推到流的首部

                                                      CharArrayReader 从字符数组中读取数据

                                                      InputStreamReader  其子类 FileReader 从本地文件系统中读取字符

                                                      new InputStreamReader(System.in) InputStream

               StringReader 从字符串中读取字符序列

                             Reader       PipedReader 从线程管道中读取字符序列

                                   过滤器读取器BufferedReader 缓冲数据访问，提高效率                                                                        LineNumberReade(BufferedReader子类)维护一个

字符流                           计数器，该计数器记录正读哪一行

               PushbackReader(FilterReader 抽象类子类)

                          允许把文本数据推回到读取器的流中

                  Writer(略)