Type Members

1.  class Member extends AnyRef

   Each instance of class Member represents an individual person, recorded by an (imaginary) society-membership app.

   Each instance of class Member represents an individual person, recorded by an (imaginary) society-membership app. A member has a number of basic attributes such as a name and a year of birth.

   Once created, a Member object is immutable; to represent changes in a person, one should create a new instance of the class.

2.  class Passenger extends AnyRef

   Each instance of class Passenger represents an individual passenger in an imaginary traffic-related application.

3.  class TravelCard extends AnyRef

   A TravelCard object represents a travel card meant for accessing public transportation.

   A TravelCard object represents a travel card meant for accessing public transportation. A travel card may be valid or invalid; a card's status can be set as invalid, if the allocated time expires or if the card is stolen, for instance.