Java ByteBuffer save to a File via FileChannel

import java.io.FileOutputStream;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;

public class Main {
  public static void main(String[] argv) throws Exception {
    ByteBuffer bbuf = ByteBuffer.allocate(100);
    bbuf.put("demo2s.com".getBytes());
    bbuf.rewind();//w  w  w. ja  v  a 2 s.  c  o  m

    boolean append = true;

    FileChannel wChannel = new FileOutputStream("Main.java", append).getChannel();

    wChannel.write(bbuf);

    wChannel.close();
  }
}