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# Class java.io.BufferedOutputStream

    java.lang.Object
       |
       +----java.io.OutputStream
               |
               +----java.io.FilterOutputStream
                       |
                       +----java.io.BufferedOutputStream

public class BufferedOutputStream
extends FilterOutputStream

The class implements a buffered output stream. By setting up such an output stream, an application can write bytes to the underlying output stream without necessarily causing a call to the underlying system for each byte written. The data is written into a buffer, and then written to the underlying stream if the buffer reaches its capacity, the buffer output stream is closed, or the buffer output stream is explicity flushed.

##

buf
  The buffer where data is stored.
count
  The number of valid bytes in the buffer.

##

BufferedOutputStream(OutputStream)
  Creates a new buffered output stream to write data to the specified underlying output stream with a default 512-byte buffer size.
BufferedOutputStream(OutputStream, int)
  Creates a new buffered output stream to write data to the specified underlying output stream with the specified buffer size.

##

flush()
  Flushes this buffered output stream.
write(byte[], int, int)
  Writes `len` bytes from the specified byte array starting at offset `off` to this buffered output stream.
write(int)
  Writes the specified byte to this buffered output stream.

##

buf

     protected byte buf[]

  The buffer where data is stored.

count

     protected int count

  The number of valid bytes in the buffer.

##

BufferedOutputStream

     public BufferedOutputStream(OutputStream out)

  Creates a new buffered output stream to write data to the specified underlying output stream with a default 512-byte buffer size.

  Parameters:
    out - the underlying output stream.

BufferedOutputStream

     public BufferedOutputStream(OutputStream out,
                                 int size)

  Creates a new buffered output stream to write data to the specified underlying output stream with the specified buffer size.

  Parameters:
    out - the underlying output stream.
    size - the buffer size.

##

write

     public synchronized void write(int b) throws IOException

  Writes the specified byte to this buffered output stream.

  Parameters:
    b - the byte to be written.
  Throws: IOException
    if an I/O error occurs.
  Overrides:
    write in class FilterOutputStream

write

     public synchronized void write(byte b[],
                                    int off,
                                    int len) throws IOException

  Writes `len` bytes from the specified byte array starting at offset `off` to this buffered output stream.

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

  Parameters:
    b - the data.
    off - the start offset in the data.
    len - the number of bytes to write.
  Throws: IOException
    if an I/O error occurs.
  Overrides:
    write in class FilterOutputStream

flush

     public synchronized void flush() throws IOException

  Flushes this buffered output stream. This forces any buffered output bytes to be written out to the underlying output stream.

  Throws: IOException
    if an I/O error occurs.
  Overrides:
    flush in class FilterOutputStream
  See Also:
    out

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