| java.lang.Object
 java.io.OutputStream
java.io.FilterOutputStream
java.io.BufferedOutputStream
All known Subclasses: sun.net.TelnetOutputStream,
| BufferedOutputStream | | public class BufferedOutputStream extends FilterOutputStream (Code) | | 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.
version:
1.27, 02/02/00
since:
JDK1.0 |
| Field Summary | |
| protected byte | buf
The internal buffer where data is stored. | | protected int | count
The number of valid bytes in the buffer. |
| Constructor Summary | |
| 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. | | 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. |
| Method Summary | |
| public synchronized void | flush()
Flushes this buffered output stream. | | public synchronized void | write(int b)
Writes the specified byte to this buffered output stream. | | public synchronized void | write(byte b, int off, int len)
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. |
| buf | | protected byte buf(Code) | | The internal buffer where data is stored.
|
| count | | protected int count(Code) | | The number of valid bytes in the buffer. This value is always
in the range 0 through buf.length; elements
buf[0] through buf[count-1] contain valid
byte data.
|
| BufferedOutputStream | | public BufferedOutputStream(OutputStream out)(Code) | | 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)(Code) | | 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.
Parameters:
size - the buffer size.
exception:
IllegalArgumentException - if size <= 0. |
| write | | public synchronized void write(int b) throws IOException(Code) | | Writes the specified byte to this buffered output stream.
Parameters:
b - the byte to be written.
exception:
IOException - if an I/O error occurs. |
| write | | public synchronized void write(byte b, int off, int len) throws IOException(Code) | | 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
BufferedOutputStreams will not copy data unnecessarily.
Parameters:
b - the data.
Parameters:
off - the start offset in the data.
Parameters:
len - the number of bytes to write.
exception:
IOException - if an I/O error occurs. |
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