🍪 Classes Explained Like You're 5
Building AI systems and writing about how they actually work. Master of AI @ University of Technology Sydney. Previously B.Tech CS with focus on IoT. I believe the best way to learn is to explain. That's why I'm documenting tech concepts with simple analogies (@sreekarreddy.com). AWS Certified • Azure AI Certified • Neo4j Professional • Google Data Analytics When not coding: exploring Sydney, working on side projects, and teaching tech to anyone who'll listen.
Cookie cutters for creating objects
Day 58 of 149
👉 Full deep-dive with code examples
The Cookie Cutter Analogy
A cookie cutter defines the shape:
- Same cutter → many cookies
- Each cookie is separate
- But all follow the same pattern
Classes are cookie cutters for code!
How Classes Work
# The cookie cutter (class)
class Dog:
def __init__(self, name, breed):
self.name = name
self.breed = breed
def bark(self):
return f"{self.name} says woof!"
# Make cookies (objects)
fido = Dog("Fido", "Labrador")
buddy = Dog("Buddy", "Poodle")
# Each has its own data
fido.bark() # "Fido says woof!"
buddy.bark() # "Buddy says woof!"
Define once, use many times!
What Classes Contain
| Part | Purpose | Example |
| Properties | Data/attributes | name, age, color |
| Methods | Actions/behavior | bark(), walk(), eat() |
| Constructor | Setup on creation | __init__ |
Why Use Classes?
Without classes:
dog1_name = "Fido"
dog1_breed = "Lab"
dog2_name = "Buddy"
dog2_breed = "Poodle"
# Messy, hard to manage!
With classes:
fido = Dog("Fido", "Lab")
buddy = Dog("Buddy", "Poodle")
# Clean, organized!
In One Sentence
Classes are blueprints that define the structure and behavior for creating multiple objects with the same characteristics.
🔗 Enjoying these? Follow for daily ELI5 explanations!
Making complex tech concepts simple, one day at a time.