import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
public class MainClass {
public static void main(String[] args) {
String phrase = new String("text\n");
String dirname = "C:/test"; // Directory name
String filename = "byteData.txt";
File aFile = new File(dirname, filename);
// Create the file output stream
FileOutputStream file = null;
try {
file = new FileOutputStream(aFile, true);
} catch (FileNotFoundException e) {
e.printStackTrace(System.err);
}
FileChannel outChannel = file.getChannel();
ByteBuffer buf = ByteBuffer.allocate(phrase.length());
byte[] bytes = phrase.getBytes();
buf.put(bytes);
buf.flip();
try {
outChannel.write(buf);
file.close();
} catch (IOException e) {
e.printStackTrace(System.err);
}
}
}