@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Tutor other = (Tutor) obj;
		if (staffId == null) {
			if (other.staffId != null)
				return false;
		} else if (!staffId.equals(other.staffId))
			return false;
		return true;
	}