常用字节流和字符流:
字节流:
InputStream
|-- FileInputStream (基本文件流)
|-- BufferedInputStream 缓冲流
|-- DataInputStream
|-- ObjectInputStream
|-- PushbackInputStream回退流
|-- BytearrayInputStream字节数组输入流
字符流
Reader
|-- InputStreamReader (byte->char 桥梁)
|-- BufferedReader (常用)
Writer
|-- OutputStreamWriter (char->byte 桥梁)
|-- BufferedWriter
|-- PrintWriter (常用)
|-- InputStreamReader (byte->char 桥梁)
|-- BufferedReader (常用)
Writer
|-- OutputStreamWriter (char->byte 桥梁)
|-- BufferedWriter
|-- PrintWriter (常用)