She marked a mental note: This one will build something real someday.
June, 11th Grade Computer Science (CBSE), final period before summer break
“Ten more minutes,” Ms. D’Souza announced, her sari rustling as she walked between the rows. computer science grade 11 cbse
Rohan’s logic was solid. He had defined classes: Book , Member , Library . Methods for borrow_book() , return_book() , display_available() . But somewhere, a bug lurked. When a member borrowed a book, the availability status updated correctly, but the due date kept resetting to the current date instead of current_date + 7 .
“A library has issued a book to a member. Write a Python function to calculate the fine if the book is returned after 15 days, where fine is ₹5 per day for the first 5 days and ₹8 per day thereafter.” She marked a mental note: This one will
“Exactly. Classes and objects are just blueprints. self is how an object knows its own data. __init__ is the constructor—what happens when you bring an object to life.” Rohan opened a new file. “Here. Let me show you.”
Aarav shrugged. “I don’t get it. The logic. All this self , __init__ , classes… why not just write everything in one straight line?” Rohan’s logic was solid
“Now imagine you had to write a program for a school with 2,000 students, each with subjects, attendance, fees, and exam scores. Would you still write everything in one line?”