Java.io.Reader Class

Introduction

The Java.io.Reader class is a abstract class for reading character streams.

Following is the declaration for Java.io.Reader class −

public class Reader
   extends Object
      implements DataOutput, DataInput, Closeable

Following are the fields for Java.io.Reader class −

protected Object lock − This is the object used to synchronize operations on this stream.

Sr.No.	Constructor & Description
1	protected Reader() This creates a new character-stream reader whose critical sections will synchronize on the reader itself.
2	protected Reader(Object lock) This creates a new character-stream reader whose critical sections will synchronize on the given object.

Sr.No.

Constructor & Description

protected Reader()

This creates a new character-stream reader whose critical sections will synchronize on the reader itself.

protected Reader(Object lock)

This creates a new character-stream reader whose critical sections will synchronize on the given object.

Sr.No.	Method & Description
1	abstract void close() This method closes the stream and releases any system resources associated with it.
2	void mark(int readAheadLimit) This method marks the present position in the stream.
3	boolean markSupported() This method tells whether this stream supports the mark() operation.
4	int read() This method reads a single character.
5	int read(char[] cbuf) This method reads characters into an array.
6	abstract int read(char[] cbuf, int off, int len) This method reads characters into a portion of an array.
7	int read(CharBuffer target) This method attempts to read characters into the specified character buffer.
8	boolean ready() This method tells whether this stream is ready to be read.
9	void reset() This method resets the stream.
10	long skip(long n) This method skips characters.

This class inherits methods from the following classes −