code: @Override
    public Float remove(int index) {
      rangeCheck(index);
      float value = elements[index];
      for (int i = index + 1; i < size; i++) {
        elements[i - 1] = elements[i];
      }
      size -= 1;
      return value;
    }
docs: /*
  (non-Javadoc)
  
  @see java.util.AbstractList#remove(int)