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Mid 2 Syllabus - Coggle Diagram

- - - - Example: Dog inherits from Animal
      - Derived class inherits from Base class
      - Enables code reuse and polymorphism
      - A "Is-A" relationship
    - - Example: House has Rooms
      - Represented with a filled diamond
      - Child object’s lifetime depends on parent
      - A "Part-Of" relationship (strong ownership)
    - - Example: Department has Teachers
      - Represented with a hollow diamond
      - Child objects can exist independently of the parent
      - A "Has-A" relationship (weak ownership)
    - - Can be one-to-one, one-to-many, or many-to-many
      - Example: Teacher teaches Student
      - One object uses or interacts with another
      - Describes a general connection between two classes