Create oop_intro.py

Author: woliul

day_17_OOP_Intro/oop_intro.py

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+# Day 17: Introduction to Object-Oriented Programming (OOP) - Classes and Objects
+
+# In OOP, a Class is a blueprint for creating objects.
+# An Object is an instance of a Class.
+
+# 1. Define a Class
+class Dog:
+    # The __init__ method is a special method called a constructor.
+    # It runs whenever a new object is created from the class.
+    # 'self' refers to the object itself.
+    def __init__(self, name, breed):
+        # These are attributes (data) of our object.
+        self.name = name
+        self.breed = breed
+        self.is_hungry = True
+
+    # 2. Define a Method
+    # A method is a function that belongs to a class.
+    def speak(self):
+        print(f"{self.name} says Woof!")
+
+    def eat(self):
+        if self.is_hungry:
+            print(f"{self.name} is eating now.")
+            self.is_hungry = False
+        else:
+            print(f"{self.name} is not hungry.")
+
+# 3. Create Objects (Instances of the Class)
+# We create objects by calling the class name like a function.
+my_dog = Dog("Buddy", "Golden Retriever")
+your_dog = Dog("Lucy", "Poodle")
+
+# 4. Access Attributes and Call Methods
+print(f"My dog's name is {my_dog.name} and he is a {my_dog.breed}.")
+my_dog.speak()
+
+print(f"Your dog's name is {your_dog.name} and she is a {your_dog.breed}.")
+your_dog.speak()
+
+# Let's interact with our objects
+my_dog.eat()
+my_dog.eat()  # Calling the method again to show attribute change