Class BufferedWriter

java.lang.Object

java.io.Writer

java.io.BufferedWriter

All Implemented Interfaces:

Closeable, Flushable, Appendable, AutoCloseable

public class BufferedWriter
extends Writer

Writes text to another writer through a buffer.

Field Summary

Fields inherited from class Writer

lock

Constructor Summary

Constructors

Constructor	Description
BufferedWriter(Writer out)	Buffers out with an 8192 character buffer.
BufferedWriter(Writer out, int size)	Buffers out with a buffer of size characters.

Method Summary

Modifier and Type	Method	Description
void	close()	Close the stream, flushing it first.
void	flush()	Flush the stream.
void	newLine()	Writes a line separator, \n.
void	write(char[] cbuf, int off, int len)	Write a portion of an array of characters.
void	write(int c)	Write a single character.
void	write(String s, int off, int len)	Write a portion of a string.

Methods inherited from class Writer

append, append, append, write, write

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

BufferedWriter

public BufferedWriter(Writer out)

Buffers out with an 8192 character buffer.

BufferedWriter

public BufferedWriter(Writer out,
 int size)

Buffers out with a buffer of size characters.

Throws

• IllegalArgumentException: when size is not positive

Method Details

write

public void write(int c)
           throws IOException

Description copied from class: Writer

Write a single character. The character to be written is contained in the 16 low-order bits of the given integer value; the 16 high-order bits are ignored. Subclasses that intend to support efficient single-character output should override this method.

Overrides:

write in class Writer

Throws:

IOException

write

public void write(char[] cbuf,
 int off,
 int len)
           throws IOException

Description copied from class: Writer

Write a portion of an array of characters.

Specified by:

write in class Writer

Throws:

IOException

write

public void write(String s,
 int off,
 int len)
           throws IOException

Description copied from class: Writer

Write a portion of a string.

Overrides:

write in class Writer

Throws:

IOException

newLine

public void newLine()
             throws IOException

Writes a line separator, \n.

Throws:

IOException

flush

public void flush()
           throws IOException

Description copied from class: Writer

Flush the stream. If the stream has saved any characters from the various write() methods in a buffer, write them immediately to their intended destination. Then, if that destination is another character or byte stream, flush it. Thus one flush() invocation will flush all the buffers in a chain of Writers and OutputStreams.

Specified by:

flush in interface Flushable

Specified by:

flush in class Writer

Throws:

IOException

close

public void close()
           throws IOException

Description copied from class: Writer

Close the stream, flushing it first. Once a stream has been closed, further write() or flush() invocations will cause an IOException to be thrown. Closing a previously-closed stream, however, has no effect.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in class Writer

Throws:

IOException