public void OnEnter(Professor inhabitant)
{
inhabitant.Display("I need a cup of coffee.");
}
public void OnExit(Professor inhabitant)
{
inhabitant.Display("{{bright eyed}} Ready for work.");
}
public void Execute(Professor inhabitant)
{
inhabitant.Display("{{sllluuurrrppp}} Umm Umm coffee's good.");
inhabitant.ChangeState(new ProfessorGradeHomeworkState());
}