Java.io.FilterWriter Class


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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.

Class declaration

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

public abstract class FilterWriter
  extends Writer

Field

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.

Class constructors

S.N. Constructor & Description
1

protected FilterWriter(Writer in)

This creates a new filtered writer.

Class methods

S.N. 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:

  • Java.io.Writer
  • Java.io.Object


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