Python 3 Deep Dive Part 4 Oop High Quality Access

Abstract classes and interfaces are used to define a blueprint for other classes to follow. An abstract class is a class that cannot be instantiated on its own and is meant to be inherited by other classes.

class BankAccount: def __init__(self, account_number, balance): self.__account_number = account_number self.__balance = balance

class Rectangle(Shape): def __init__(self, width, height): self.width = width self.height = height python 3 deep dive part 4 oop high quality

stripe_gateway.process_payment(100) # Output: Processing payment of $100 using Stripe. paypal_gateway.process_payment(200) # Output: Processing payment of $200 using PayPal.

class StripePaymentGateway(PaymentGateway): def process_payment(self, amount): print(f"Processing payment of ${amount} using Stripe.") Abstract classes and interfaces are used to define

account = BankAccount("1234567890", 1000) print(account.get_balance()) # Output: 1000 account.deposit(500) print(account.get_balance()) # Output: 1500

my_electric_car = ElectricCar("Blue", "Tesla", "Model S", 100) print(my_electric_car.color) # Output: Blue my_electric_car.start_engine() # Output: The engine is started. my_electric_car.charge_battery() # Output: The battery is charging. paypal_gateway

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