This README would normally document whatever steps are necessary to get the
application up and running.
| - phoneNumber: String |
| - feedback: List |
| - isSpam: boolean |
| + addFeedback(feedback: Feedback)|
| + isSpam(): boolean |
| - user: User |
| - comment: String |
| - rating: int |
| - date: Date |
| + getComment(): String |
| + getRating(): int |
| + getDate(): Date |
| + getUser(): User |
| - username: String |
| - email: String |
| - password: String |
| + getUsername(): String |
| + getEmail(): String |
| + getPassword(): String |