OOP

class Dog:
    def __init__(self, name):
        self.name = name

    def bark(self):
        return f"{self.name} says woof!"

d = Dog("Rex")
print(d.bark())

class Animal:
    def speak(self):
        return "..."

class Cat(Animal):
    def speak(self):
        return "Meow"

print(Cat().speak())

class Counter:
    count = 0

    def __init__(self):
        Counter.count += 1

a = Counter()
b = Counter()
c = Counter()
print(Counter.count)

class Point:
    def __init__(self, x, y):
        self.x, self.y = x, y
    def __str__(self):
        return f"({self.x}, {self.y})"

p = Point(3, 4)
print(p)

class Math:
    @staticmethod
    def add(a, b):
        return a + b

    @classmethod
    def name(cls):
        return cls.__name__

print(Math.add(3, 4))
print(Math.name())