code: public void skip(long n) throws IOException {
  		if (capacity == 0) {
  			// aligned
  			while (n != 0) {
  				n -= istream.skip(n);
  			}
  		} else {
  			// not aligned, grrr
  			for (int i = 0; i < n; n++) {
  				readBits(8);
  			}
  		}
  	}
docs: Skip n bytes
  
  @param n
  bytes
  @throws IOException
  IO exception