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jdk.io.BufferedWriter

Writes text to a character-output stream, buffering characters so as to provide for the efficient writing of single characters, arrays, and strings.

The buffer size may be specified, or the default size may be accepted. The default is large enough for most purposes.

A newLine() method is provided, which uses the platform's own notion of line separator as defined by the system property line.separator. Not all platforms use the newline character ('\n') to terminate lines. Calling this method to terminate each output line is therefore preferred to writing a newline character directly.

In general, a Writer sends its output immediately to the underlying character or byte stream. Unless prompt output is required, it is advisable to wrap a BufferedWriter around any Writer whose write() operations may be costly, such as FileWriters and OutputStreamWriters. For example,

PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("foo.out")));

will buffer the PrintWriter's output to the file. Without buffering, each invocation of a print() method would cause characters to be converted into bytes that would then be written immediately to the file, which can be very inefficient.

Writes text to a character-output stream, buffering characters so as to
provide for the efficient writing of single characters, arrays, and strings.

 The buffer size may be specified, or the default size may be accepted.
The default is large enough for most purposes.

 A newLine() method is provided, which uses the platform's own notion of
line separator as defined by the system property line.separator.
Not all platforms use the newline character ('\n') to terminate lines.
Calling this method to terminate each output line is therefore preferred to
writing a newline character directly.

 In general, a Writer sends its output immediately to the underlying
character or byte stream.  Unless prompt output is required, it is advisable
to wrap a BufferedWriter around any Writer whose write() operations may be
costly, such as FileWriters and OutputStreamWriters.  For example,



PrintWriter out
  = new PrintWriter(new BufferedWriter(new FileWriter("foo.out")));

will buffer the PrintWriter's output to the file.  Without buffering, each
invocation of a print() method would cause characters to be converted into
bytes that would then be written immediately to the file, which can be very
inefficient.
raw docstring

->buffered-writerclj

(->buffered-writer out)
(->buffered-writer out sz)

Constructor.

Creates a new buffered character-output stream that uses an output buffer of the given size.

out - A Writer - java.io.Writer sz - Output-buffer size, a positive integer - int

throws: java.lang.IllegalArgumentException - If sz <= 0

Constructor.

Creates a new buffered character-output stream that uses an output
 buffer of the given size.

out - A Writer - `java.io.Writer`
sz - Output-buffer size, a positive integer - `int`

throws: java.lang.IllegalArgumentException - If sz <= 0
raw docstring

closeclj

(close this)

Description copied from class: Writer

throws: java.io.IOException - If an I/O error occurs

Description copied from class: Writer

throws: java.io.IOException - If an I/O error occurs
raw docstring

flushclj

(flush this)

Flushes the stream.

throws: java.io.IOException - If an I/O error occurs

Flushes the stream.

throws: java.io.IOException - If an I/O error occurs
raw docstring

new-lineclj

(new-line this)

Writes a line separator. The line separator string is defined by the system property line.separator, and is not necessarily a single newline ('\n') character.

throws: java.io.IOException - If an I/O error occurs

Writes a line separator.  The line separator string is defined by the
 system property line.separator, and is not necessarily a single
 newline ('\n') character.

throws: java.io.IOException - If an I/O error occurs
raw docstring

writeclj

(write this c)
(write this cbuf off len)

Writes a portion of an array of characters.

Ordinarily this method stores characters from the given array into this stream's buffer, flushing the buffer to the underlying stream as needed. If the requested length is at least as large as the buffer, however, then this method will flush the buffer and write the characters directly to the underlying stream. Thus redundant BufferedWriters will not copy data unnecessarily.

cbuf - A character array - char[] off - Offset from which to start reading characters - int len - Number of characters to write - int

throws: java.io.IOException - If an I/O error occurs

Writes a portion of an array of characters.

  Ordinarily this method stores characters from the given array into
 this stream's buffer, flushing the buffer to the underlying stream as
 needed.  If the requested length is at least as large as the buffer,
 however, then this method will flush the buffer and write the characters
 directly to the underlying stream.  Thus redundant
 BufferedWriters will not copy data unnecessarily.

cbuf - A character array - `char[]`
off - Offset from which to start reading characters - `int`
len - Number of characters to write - `int`

throws: java.io.IOException - If an I/O error occurs
raw docstring

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