objective: A school Management System

On JAVA

where : Creation of three users can be made - : Users of the system Administrator |Teacher| Student

Functional Requirements:

1. Admin:

Send messages to all users

Add/ remove users

2.Teachers:

Only send messages to Students

3. Overall System:

Checks that there is no same username.

checks password is secure .

All user information must be stored on a file . perhaps a file for each user? Whichever is best.

I'm not looking for some EXCELLENT program. Something that seems simple/ Educational (Include comments as to why it was included) .

All users must have a "School class" in which they share certain attributes and methods. It should also be obvious that they also have their own individual attributes and methods that they don't share.