The 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.

Class declaration

Following is the declaration for class −

public abstract class FilterWriter
   extends Writer


Following are the fields for class −

  • protected Writer in − This is the character-output stream.

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

Class constructors

Sr.No. Constructor & Description

protected FilterWriter(Writer in)

This creates a new filtered writer.

Class methods

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.

Methods inherited

This class inherits methods from the following classes −