BufferedWriter 

Introduction

The Java.io.BufferedWriter class writes text to a character-output stream, buffering characters so as to provide for the efficient writing of single characters, arrays, and strings.Following are the important points about BufferedWriter −

• The buffer size may be specified, or the default size may be used.
• A Writer sends its output immediately to the underlying character or byte stream.

Class declaration

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

public class BufferedWriter
   extends Writer

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Field

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

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

Class constructors

Sr.No.	Constructor & Description
1	BufferedWriter(Writer out)This creates a buffered character-output stream that uses a default-sized output buffer.
2	BufferedWriter(Writer out, int sz)This creates a new buffered character-output stream that uses an output buffer of the given size.

Class methods

Sr.No.	Method & Description
1	void close()This method closes the stream, flushing it first.
2	void flush()This method flushes the stream.
3	void newLine()This method writes a line separator.
4	void write(char[] cbuf, int off, int len)This method writes a portion of an array of characters.
5	void write(int c)This method writes a single character.
6	void write(String s, 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