Add Python Code Snippets ...

Author: aminzayer

MostOOPCommonGist.py

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+# Creating a Class:
+# Define a simple Python class.
+class Dog:
+    def __init__(self, name, breed):
+        self.name = name
+        self.breed = breed
+    
+    def bark(self):
+        return "Woof!"
+
+# Inheritance:
+# Create a subclass that inherits from a parent class.
+class Animal:
+    def speak(self):
+        pass
+
+class Dog(Animal):
+    def speak(self):
+        return "Woof!"
+
+class Cat(Animal):
+    def speak(self):
+        return "Meow!"
+
+# Encapsulation:
+# Implement encapsulation by using private and public attributes.
+class Circle:
+    def __init__(self, radius):
+        self.__radius = radius  # Private attribute
+
+    def area(self):
+        return 3.14 * self.__radius * self.__radius
+
+# Polymorphism:
+# Demonstrate polymorphism with a common method name.
+class Animal:
+    def speak(self):
+        pass
+
+class Dog(Animal):
+    def speak(self):
+        return "Woof!"
+
+class Cat(Animal):
+    def speak(self):
+        return "Meow!"
+
+def animal_sound(animal):
+    return animal.speak()
+
+# Abstraction:
+# Implement abstraction by defining an abstract base class.
+from abc import ABC, abstractmethod
+
+class Shape(ABC):
+    @abstractmethod
+    def area(self):
+        pass
+
+class Circle(Shape):
+    def __init__(self, radius):
+        self.radius = radius
+
+    def area(self):
+        return 3.14 * self.radius * self.radius
+
+# Getter and Setter Methods:
+# Use getter and setter methods for attribute access.
+class Person:
+    def __init__(self, name, age):
+        self._name = name
+
+    def get_name(self):
+        return self._name
+
+    def set_name(self, name):
+        self._name = name
+
+# Composition:
+# Create a class that is composed of other classes.
+class Engine:
+    def start(self):
+        return "Engine started."
+
+class Car:
+    def __init__(self):
+        self.engine = Engine()
+
+    def start(self):
+        return self.engine.start()
+
+# Method Overloading:
+# Implement method overloading using default arguments.
+class Calculator:
+    def add(self, a, b=0):
+        return a + b
+
+# Class Variables:
+# Define and use class-level variables.
+class Student:
+    count = 0
+
+    def __init__(self, name):
+        self.name = name
+        Student.count += 1
+
+# Multiple Inheritance:
+# Create a class that inherits from multiple parent classes.
+class A:
+    def method_a(self):
+        return "Method A"
+
+class B:
+    def method_b(self):
+        return "Method B"
+
+class C(A, B):
+    pass