polymorphism.py

class Hewan:
    def __init__(self, nama):
        self.nama = nama

    def suara(self):
        print(f"{self.nama} bersuara")


class Anjing(Hewan):
    def suara(self):
        print(f"{self.nama} guk guk")


class Kucing(Hewan):
    def suara(self):
        print(f"{self.nama} meow")


class Sapi(Hewan):
    def suara(self):
        print(f"{self.nama} moooo")


hewan_list = [
    Anjing("Anjing"),
    Kucing("Kucing"),
    Sapi("Sapi")
]

for hewan in hewan_list:
    hewan.suara()


class Mobil:
    def start(self):
        print("Mobil berjalan")


class Motor:
    def start(self):
        print("Motor berjalan")


class Perahu:
    def start(self):
        print("Perahu berjalan")


def operasikan_kendaraan(kendaraan):
    kendaraan.start()


kendaraan_list = [
    Mobil(),
    Motor(),
    Perahu()
]

for kendaraan in kendaraan_list:
    operasikan_kendaraan(kendaraan)


class Apple:
    def __init__(self, jumlah):
        self.jumlah = jumlah

    def __add__(self, other):
        return Apple(self.jumlah + other.jumlah)

    def __str__(self):
        return f"Apple {self.jumlah}"


apple1 = Apple(10)
apple2 = Apple(20)
apple3 = apple1 + apple2
print(apple3)

from abc import ABC, abstractmethod


class Shape(ABC):
    @abstractmethod
    def area(self):
        pass

class Rectangle(Shape):
    def __init__(self, length, width):
        self.length = length
        self.width = width

    def area(self):
        return self.length * self.width

class Circle(Shape):
    def __init__(self, radius):
        self.radius = radius

    def area(self):
        return 3.14 * self.radius ** 2

shape_list = [
    Rectangle(10, 20),
    Circle(10)
]

for shape in shape_list:
    print(shape.area())