If you have one or more ByteBuffers to dump to a file, use a FileChannel.
// Write bbuf to filename
ByteBuffer bbuf = getMyData();
File file = new File("filename");
// Set to true if the bytes should be appended to the file;
// set to false if the bytes should replace current bytes
// (if the file exists)
boolean append = false;
try {
// Create a writable file channel
FileChannel wChannel = new FileOutputStream(file, append).getChannel();
// Write the ByteBuffer contents; the bytes between the ByteBuffer's
// position and the limit is written to the file
wChannel.write(bbuf);
// Close the file
wChannel.close();
} catch (IOException e) {
}
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