User

```
public class User
extends java.lang.Object
```
A class that encrypts a string and checks it against another stored encrypted string, in order to validate a user login.

Fields
Modifier and Type	Field and Description
`java.util.HashMap<java.lang.String,java.lang.String>`	`attributes` A HashMap of String keys and String values
`java.lang.String`	`password` Encrypted password
`java.util.ArrayList<java.lang.String>`	`projects` An ArrayList of String keys consisting of unique project names.
`java.lang.String`	`role` A String which is one of: user, registered, administrator
`java.lang.String`	`username`

Constructors
Constructor and Description
`User()`

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`createDB()` Create a database with columns like this class
`static User`	`fromDB(java.sql.Connection conn, java.lang.String username)` Load the object from a relational DB
`java.lang.String`	`getRole()`
`static void`	`main(java.lang.String[] args)`
`void`	`toDB(java.sql.Connection conn)` save the object in the relational DB
`void`	`toggleRole(java.sql.Connection conn)` toggle user role between 'guest' and 'user'
`java.lang.String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

createDB
```
public static void createDB()
```
Create a database with columns like this class

public static User fromDB(java.sql.Connection conn,
                          java.lang.String username)

Load the object from a relational DB

public void toDB(java.sql.Connection conn)

save the object in the relational DB

toggleRole
```
public void toggleRole(java.sql.Connection conn)
```
toggle user role between 'guest' and 'user'

public static void main(java.lang.String[] args)

Class User