Inheritance & Polymorphism

1class Animal:
2    def __init__(self, name):
3        self.name = name
4    
5    def speak(self):
6        raise NotImplementedError
7
8class Cat(Animal):
9    def speak(self):
10        return f"{self.name}: Meow!"
11
12class Dog(Animal):
13    def speak(self):
14        return f"{self.name}: Woof!"
15
16animals = [Cat("Whiskers"), Dog("Rex")]
17for animal in animals:
18    print(animal.speak())

1class Vehicle:
2    def __init__(self, brand, speed):
3        self.brand = brand
4        self.speed = speed
5
6class ElectricCar(Vehicle):
7    def __init__(self, brand, speed, battery):
8        super().__init__(brand, speed)
9        self.battery = battery
10    
11    def info(self):
12        return f"{self.brand} | {self.speed}km/h | {self.battery}kWh"
13
14tesla = ElectricCar("Tesla", 250, 100)
15print(tesla.info())