Mermaid Class Diagram with MAIDR

Each class announces its attributes and methods; the To list names what it inherits from or is composed of.

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---
title: Animal example
---
classDiagram
  Animal <|-- Duck
  Animal <|-- Fish
  Pond "1" o-- "*" Duck : lives in
  Animal : +int age
  Animal : +String gender
  Animal : +isMammal() bool
  class Duck {
    +String beakColor
    +swim()
    +quack()
  }
  class Fish {
    -int sizeInFeet
    -canEat()
  }
  class Pond
  note for Duck "can fly and swim"