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Showing content from https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/io/PipedOutputStream.html below:

PipedOutputStream (Java SE 21 & JDK 21)

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

A piped output stream can be connected to a piped input stream to create a communications pipe. The piped output stream is the sending end of the pipe. Typically, data is written to a

object by one thread and data is read from the connected

by some other thread. Attempting to use both objects from a single thread is not recommended as it may deadlock the thread. The pipe is said to be

if a thread that was reading data bytes from the connected piped input stream is no longer alive.

Since:

1.0

See Also:

• PipedInputStream

• Constructor Summary

  Constructors

  Creates a piped output stream that is not yet connected to a piped input stream.

  Creates a piped output stream connected to the specified piped input stream.

• Method Summary

  void

  Closes this piped output stream and releases any system resources associated with this stream.

  void

  Connects this piped output stream to a receiver.

  void

  Flushes this output stream and forces any buffered output bytes to be written out.

  void

  write(byte[] b, int off, int len)

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

  void

  Writes the specified byte to the piped output stream.

  Methods declared in class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• Constructor Details
  • PipedOutputStream

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

    Parameters:

    snk - The piped input stream to connect to.

    Throws:

    IOException - if an I/O error occurs.

  • PipedOutputStream

    public PipedOutputStream()

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

    See Also:

    • PipedInputStream.connect(java.io.PipedOutputStream)
    • connect(java.io.PipedInputStream)

• Method Details
  • connect

    Connects this piped output stream to a receiver. If this object is already connected to some other piped input stream, an

    IOException

    is thrown.

    If snk is an unconnected piped input stream and src is an unconnected piped output stream, they may be connected by either the call:

    or the call:

    The two calls have the same effect.

    Parameters:

    snk - the piped input stream to connect to.

    Throws:

    IOException - if an I/O error occurs.

  • write

    Writes the specified

    byte

    to the piped output stream.

    Implements the write method of OutputStream.

    Specified by:

    write in class OutputStream

    Parameters:

    b - the byte to be written.

    Throws:

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

  • write public void write(byte[] b, int off, int len)

    throws

    IOException

    Writes len bytes from the specified byte array starting at offset off to this piped output stream. This method blocks until all the bytes are written to the output stream.

    Overrides:

    write in class OutputStream

    Parameters:

    b - the data.

    off - the start offset in the data.

    len - the number of bytes to write.

    Throws:

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

    IndexOutOfBoundsException - If off is negative, len is negative, or len is greater than b.length - off

  • flush

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

    Specified by:

    flush in interface Flushable

    Overrides:

    flush in class OutputStream

    Throws:

    IOException - if an I/O error occurs.

  • close

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

    Specified by:

    close in interface AutoCloseable

    Specified by:

    close in interface Closeable

    Overrides:

    close in class OutputStream

    Throws:

    IOException - if an I/O error occurs.

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