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<TITLE>Creating a Stream from a Channel (Java Developers Almanac Example)
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<h1>The Java Developers Almanac 1.4</h1>
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<h3>e183. Creating a Stream from a Channel</h3>
This example uses methods from <code>Channels.newOutputStream()</code> and
<code>Channels.newInputStream()</code> to create streams on a file channel. Note:
If the example had created a direct <code>ByteBuffer</code> from the file channel
(see <a href="../java.nio/CreateMemMap.html" class="eglink"><b>e166</b> Creating a Memory-Mapped File</a>), any reads or writes to the streams
would appear in the direct <code>ByteBuffer</code>.
<pre> try {
// Create a read/writeable file channel
File file = new File(<font color="#0066ff"><i>"filename"</i></font>);
FileChannel channel = new RandomAccessFile(file, "rw").getChannel();
// Create an output stream on the channel
OutputStream os = Channels.newOutputStream(channel);
// Create an inputstream on the channel
InputStream is = Channels.newInputStream(channel);
// Close the channel
is.close();
} catch (IOException e) {
}
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<b>Related Examples</b></font></td>
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e184. <a class="eglink" href="Buffer2Stream.html?l=rel">
Creating a Stream on a ByteBuffer
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See also:
<a class="eglink" href="/egs/java.nio/pkg.html?l=rel#Byte%20Buffers">
Byte Buffers
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<a class="eglink" href="/egs/java.nio/pkg.html?l=rel#File%20Locking">
File Locking
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<a class="eglink" href="/egs/java.nio/pkg.html?l=rel#Files">
Files
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<a class="eglink" href="/egs/java.nio/pkg.html?l=rel#Sockets">
Sockets
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