Reader

public abstract class Reader
extends Object implements Closeable, Readable

java.lang.Object
↳	java.io.Reader

Known direct subclasses BufferedReader, CharArrayReader, FilterReader, InputStreamReader, PipedReader, StringReader BufferedReader Reads text from a character-input stream, buffering characters so as to provide for the efficient reading of characters, arrays, and lines.  CharArrayReader This class implements a character buffer that can be used as a character-input stream.  FilterReader Abstract class for reading filtered character streams.  InputStreamReader An InputStreamReader is a bridge from byte streams to character streams: It reads bytes and decodes them into characters using a specified charset.  PipedReader Piped character-input streams.  StringReader A character stream whose source is a string.

Known indirect subclasses FileReader, LineNumberReader, PushbackReader FileReader Reads text from character files using a default buffer size.  LineNumberReader A buffered character-input stream that keeps track of line numbers.  PushbackReader A character-stream reader that allows characters to be pushed back into the stream.

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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.

Summary

Fields
protected Object	lock The object used to synchronize operations on this stream.

Protected constructors
Reader() Creates a new character-stream reader whose critical sections will synchronize on the reader itself.
Reader(Object lock) Creates a new character-stream reader whose critical sections will synchronize on the given object.

Public methods
abstract void	close() Closes the stream and releases any system resources associated with it.
void	mark(int read