Java.io.FilterWriter Class

Introduction

The Java.io.FilterWriter class is for writing filtered character streams. Following are the important points about FilterWriter −

The class itself provides default methods that pass all requests to the contained stream.
The Subclasses of FilterWriter should override some of these methods and may also provide additional methods and fields.

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

public abstract class FilterWriter
   extends Writer

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

protected Writer in − This is the character-output stream.
protected Object lock − This is the object used to synchronize operations on this stream.

Sr.No.	Constructor & Description
1	protected FilterWriter(Writer in) This creates a new filtered writer.

Sr.No.	Method & Description
1	void close() This method flushes the stream.
2	void flush() This method flushes the stream.
3	void write(char[] cbuf, int off, int len) This method writes a portion of an array of characters.
4	void write(int c) This method writes a single character.
5	void write(String str, int off, int len) This method writes a portion of a string.

This class inherits methods from the following classes −