public class CrewMember {
    public enum FlightCrewJob{
        Pilot,
        CoPilot,
        FlightAttendant,
        AirMarshal
    }
    private FlightCrewJob job;

    public CrewMember(FlightCrewJob job){
        this.job = job;
    }
    public void setJob(FlightCrewJob job){
        this.job = job;
    }
}