Getters and Setters

• Class Attributes... 
  • are variables where you can access through the instance, class, or both. 
  • holds an internal state.  
  • Two ways to access class attributes:
    1. Directly (breaks encapsulation) 
       • If accessed directly, they become part of Public API
       • Only use if sure that no behavior (methods) will ever be attached to the variables  (@dataclass?)
       • Changing implementation will be problematic:
         • Converting stored attribute -> computed attribute. Want to be able to store attributes instead of recomputing each time 
       • No internal implementation 
    2. Methods (ideal) 
       • Two methods to respect encapsulation
         • Getter: Allows Access
         • Setter: Allows Setting or Mutation