Question

Exercise 1: Understanding Object Oriented Design Principles [Please Answer clearly using python, No java code only python]

What are the differences between an abstract class and an interface class? Present 02 examples one of an abstract class and one of an interface class in python

Answer 1

the main difference between abstract class and interface class :
interface class contains only method declarations and not implementations
abstract class contains may contain abstract declarations and concrete implementations or both
An interface can contain only method declarations.
An abstract class can contain both method declarations (abstract methods) and method implementations (concrete methods).
Python abstract class example:
class AbstractClass:#abtract class
def do_something(self):#abstrct method
pass
def work(self):#method with implementation
print("Hello")
class B(AbstractClass):
pass
a = AbstractClass()
a.work()
b = B()
Python interface class example:
class AbstractClass:#abtract class
def do_something(self):#abstrct method
pass
class B(AbstractClass):
pass
a = AbstractClass()
a.work()
b = B()