Class Reader

lang/Object.html">java.lang.Object
  java.io.Reader
All Implemented Interfaces:

Closeable, Readable

Direct Known Subclasses:: BufferedReader, CharArrayReader, FilterReader, InputStreamReader, PipedReader, StringReader

Object
implements Readable, Closeable

Abstract class for reading character streams. The only methods that a subclass must implement are read(char[], int, int) and close(). Most subclasses, however, will override some of the methods defined here in order to provide higher efficiency, additional functionality, or both.

Since:: JDK1.1
See Also:: BufferedReader, LineNumberReader, CharArrayReader, InputStreamReader, FileReader, FilterReader, PushbackReader, PipedReader, StringReader, Writer

Field Summary
`Object`	`Reader.html#lock"> lock` The object used to synchronize operations on this stream.

Constructor Summary
`protected`	`Reader.html#Reader()"> Reader()` Creates a new character-stream reader whose critical sections will synchronize on the reader itself.
`protected`	`Reader.html#Reader(java.lang.Object)"> Reader(lang/Object.html">Object lock)` Creates a new character-stream reader whose critical sections will synchronize on the given object.

Method Summary
`abstract void`	`close()` Closes the stream and releases any system resources associated with it.
`void`	`mark(int readAheadLimit)` Marks the present position in the stream.
`boolean`	`markSupported()` Tells whether this stream supports the mark() operation.
`int`	`read()` Reads a single character.
`int`	`read(char[] cbuf)` Reads characters into an array.
`abstract int`	`read(char[] cbuf, int off, int len)` Reads characters into a portion of an array.
`int`	`Reader.html#read(java.nio.CharBuffer)"> read(CharBuffer target)` Attempts to read characters into the specified character buffer.
`boolean`	`Reader.html#ready()"> ready()` Tells whether this stream is ready to be read.
`void`	`Reader.html#reset()"> reset()` Resets the stream.
`long`	`Reader.html#skip(long)"> skip(long n)` Skips characters.

Class Writer

lang/Object.html">java.lang.Object
  java.io.Writer

All Implemented Interfaces:: Closeable, Flushable, Appendable

Direct Known Subclasses:: BufferedWriter, CharArrayWriter, FilterWriter, OutputStreamWriter, PipedWriter, PrintWriter, StringWriter


extends lang/Object.html"> Object
implements Appendable, Closeable, Flushable

Abstract class for writing to character streams. The only methods that a subclass must implement are write(char[], int, int), flush(), and close(). Most subclasses, however, will override some of the methods defined here in order to provide higher efficiency, additional functionality, or both.

Since:: JDK1.1
See Also:: Writer, BufferedWriter, CharArrayWriter, FilterWriter, OutputStreamWriter, FileWriter, PipedWriter, PrintWriter, StringWriter, Reader

Field Summary
`Object`	`lock` The object used to synchronize operations on this stream.

Constructor Summary
`protected`	`Writer()` Creates a new character-stream writer whose critical sections will synchronize on the writer itself.
`protected`	`Writer(lang/Object.html">Object lock)` Creates a new character-stream writer whose critical sections will synchronize on the given object.

Method Summary

`Writer`	`append(CharSequence csq)` Appends the specified character sequence to this writer.
`Writer`	`append(CharSequence csq, int start, int end)` Appends a subsequence of the specified character sequence to this writer.
`abstract void`	`close()` Closes the stream, flushing it first.
`abstract void`	`Writer.html#flush()"> flush()` Flushes the stream.
`void`	`Writer.html#write(char[])"> write(char[] cbuf)` Writes an array of characters.
`abstract void`	`write(char[] cbuf, int off, int len)` Writes a portion of an array of characters.
`void`	`write(int c)` Writes a single character.
`void`	`write(lang/String.html">String str)` Writes a string.
`void`	`write(lang/String.html">String str, int off, int len)` Writes a portion of a string.

Methods inherited from class java.lang.lang/Object.html">Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`