Java.io.BufferedWriter Class

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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

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
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