Java.io.InputStreamReader Class

Introduction

The Java.io.InputStreamReader class is a bridge from byte streams to character streams.It reads bytes and decodes them into characters using a specified charset.

Class declaration

Following is the declaration for Java.io.InputStreamReader class:

public class InputStreamReader
   extends Reader

Field

Following are the fields for Java.io.InputStreamReader class:

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

Class constructors

S.N.	Constructor & Description
1	InputStreamReader(InputStream in) This creates an InputStreamReader that uses the default charset.
2	InputStreamReader(InputStream in, Charset cs) This creates an InputStreamReader that uses the given charset.
3	InputStreamReader(InputStream in, CharsetDecoder dec) This creates an InputStreamReader that uses the given charset decoder.
4	InputStreamReader(InputStream in, String charsetName) This creates an InputStreamReader that uses the named charset.

Class methods

S.N.	Method & Description
1	void close() This method closes the stream and releases any system resources associated with it.
2	String getEncoding() This method returns the name of the character encoding being used by this stream.
3	int read() This method reads a single character.
4	int read(char[] cbuf, int offset, int length) This method reads characters into a portion of an array.
5	boolean ready() This method tells whether this stream is ready to be read.

Methods inherited

This class inherits methods from the following classes:

• Java.io.Reader
• Java.io.Object