Java compact1, compact2, compact3 java.io Class PipedWriter（JDK8）

Constructor Detail

• PipedWriter

  public PipedWriter(PipedReader snk)
              throws IOException

  Creates a piped writer connected to the specified piped reader. Data characters written to this stream will then be available as input from snk.

  Parameters:

  snk - The piped reader to connect to.

  Throws:

  IOException - if an I/O error occurs.

• PipedWriter

  public PipedWriter()

  Creates a piped writer that is not yet connected to a piped reader. It must be connected to a piped reader, either by the receiver or the sender, before being used.

  See Also:

  PipedReader.connect(java.io.PipedWriter), connect(java.io.PipedReader)

Method Detail

• connect

  public void connect(PipedReader snk)
               throws IOException

  Connects this piped writer to a receiver. If this object is already connected to some other piped reader, an IOException is thrown.

  If snk is an unconnected piped reader and src is an unconnected piped writer, they may be connected by either the call:

   src.connect(snk)

  or the call:

   snk.connect(src)

  The two calls have the same effect.

  Parameters:

  snk - the piped reader to connect to.

  Throws:

  IOException - if an I/O error occurs.

• write

  public void write(int c)
             throws IOException

  Writes the specified char to the piped output stream. If a thread was reading data characters from the connected piped input stream, but the thread is no longer alive, then an IOException is thrown.

  Implements the write method of Writer.

  Overrides:

  write in class Writer

  Parameters:

  c - the char to be written.

  Throws:

  IOException - if the pipe is broken, unconnected, closed or an I/O error occurs.

• write

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

  Writes len characters from the specified character array starting at offset off to this piped output stream. This method blocks until all the characters are written to the output stream. If a thread was reading data characters from the connected piped input stream, but the thread is no longer alive, then an IOException is thrown.

  Specified by:

  write in class Writer

  Parameters:

  cbuf - the data.

  off - the start offset in the data.

  len - the number of characters to write.

  Throws:

  IOException - if the pipe is broken, unconnected, closed or an I/O error occurs.

• flush

  public void flush()
             throws IOException

  Flushes this output stream and forces any buffered output characters to be written out. This will notify any readers that characters are waiting in the pipe.

  Specified by:

  flush in interface Flushable

  Specified by:

  flush in class Writer

  Throws:

  IOException - if the pipe is closed, or an I/O error occurs.

• close

  public void close()
             throws IOException

  Closes this piped output stream and releases any system resources associated with this stream. This stream may no longer be used for writing characters.

  Specified by:

  close in interface Closeable

  Specified by:

  close in interface AutoCloseable

  Specified by:

  close in class Writer

  Throws:

  IOException - if an I/O error occurs.