程序包 java.io

类 PipedWriter

java.lang.Object

java.io.Writer

java.io.PipedWriter

所有已实现的接口:

Closeable, Flushable, Appendable, AutoCloseable

public class PipedWriter
extends Writer

Piped character-output streams.

从以下版本开始:

JDK1.1

字段概要

从类继承的字段 java.io.Writer

lock

构造器概要

构造器

构造器	说明
PipedWriter()	Creates a piped writer that is not yet connected to a piped reader.
PipedWriter(PipedReader snk)	Creates a piped writer connected to the specified piped reader.

方法概要

限定符和类型	方法	说明
void	close()	Closes this piped output stream and releases any system resources associated with this stream.
void	connect(PipedReader snk)	Connects this piped writer to a receiver.
void	flush()	Flushes this output stream and forces any buffered output characters to be written out.
void	write(char[] cbuf, int off, int len)	Writes len characters from the specified character array starting at offset off to this piped output stream.
void	write(int c)	Writes the specified char to the piped output stream.

从类继承的方法 java.lang.Object

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

从类继承的方法 java.io.Writer

append, append, append, write, write, write

构造器详细资料

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.

参数:

snk - The piped reader to connect to.

抛出:

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.

另请参阅:

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

方法详细资料

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.

参数:

snk - the piped reader to connect to.

抛出:

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.

覆盖:

write 在类中 Writer

参数:

c - the char to be written.

抛出:

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.

指定者:

write 在类中 Writer

参数:

cbuf - the data.

off - the start offset in the data.

len - the number of characters to write.

抛出:

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.

指定者:

flush 在接口中 Flushable

指定者:

flush 在类中 Writer

抛出:

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.

指定者:

close 在接口中 AutoCloseable

指定者:

close 在接口中 Closeable

指定者:

close 在类中 Writer

抛出:

IOException - if an I/O error occurs.