IO UML类图

基于JDK1.8

<<interface>>Closeable

+ close():void

InputStreamReader

- sd:StreamDecoder

实现

ByteArrayOutputStream

# buf:byte[]# count:int- MAX_ARRAY_SIZE：int = Integer.MAX_VALUE - 8

Reader

# lock:Object- skipBuffer:char[] = null- maxSkipBufferSize:int = 8192

ByteArrayInputStream

# buf:byte[]# pos:int# count:int# mark:int = 0

BufferedInputStream

- DEFAULT_BUFFER_SIZE:int = 8192- MAX_BUFFER_SIZE:int = Integer.MAX_VALUE - 8

PipedWriter

- sink:PipedReader- closed:boolean = false

PipedOutputStream

- sink:PipedInputStream

PrintStream

- textOut:BufferedWriter- charOut:OutputStreamWriter

ObjectInputStream

+      公有（public）#      保护（span style=\

DataOutputStream

# written:int- bytearr:byte[] = null- writeBuffer:byte[] = new byte[8]

PipedReader

* buf:char[]* in:int = -1* out:int = 0

DataInputStream

- bytearr:byte[] = new byte[80]- chararr:char[] = new char[80]- readBuffer:byte[] = new byte[8]- lineBuffer:char[]

FilterReader

# in:Reader

<<interface>>AutoCloseable

FilterInputStream

# in:InputStream

FileOutputStream

- fd:FileDescriptor- append:boolean- channel:FileChannel- path:String- closed:boolean = false- closeLock:Object = new Object

PushbackInputStream

# buf:byte[]# pos:int

BufferedOutputStream

# buf:byte[]# count:int

BufferedWriter

- out:Writer- cb:char[]- defaultCharBufferSize:int = 8192

CharArrayWriter

# buf:char[]# count:int

内部类

ObjectOutputStream

<<interface>>Flushable

+ flush():void

OutputStreamWriter

- se:StreamEncoder

font color=\"#323232\

FileInputStream

- fd:FileDescriptor- path:String- channel:FileChannel = null- closed:boolean = false- closeLock:Object = new Object()

+ FileInputStream(String name)+ FileInputStream(File file)+ FileInputStream(FileDescriptor fdObj)+ read():intfont color=\"#323232\

FileReader

+ FileReader(String fileName)+ FileReader(File file)+ FileReader(FileDescriptor fd)

Writer

- writeBuffer:char[]- WRITE_BUFFER_SIZE:int = 1024# lock:Object

# Writer()# Writer(Object lock)+ write(int c):void+ flush():void+ close():void 

InputStream

- MAX_SKIP_BUFFER_SIZE:int = 2048

继承

SequenceInputStream

* in:InputStream

CharArrayReader

# buf:char[]# pos:int # markedPos:int = 0# count:int 

FilterWriter

# out:Writer

OutStream

+ write(int b):voidfont color=\"#323232\

PrintWriter

# out:Writer

FilterOutputStream

# out:OutputStream

BufferedReader

# in:Reader

FileWriter

PipedInputStream

# buffer:byte[]# in:int =  -1# out:int = 0