💻 Coding Interview Questions

1️⃣ What is an object?
Answer: An instance of a class containing data and methods.

2️⃣ What is a class?
Answer: A blueprint used to create objects.

3️⃣ What is OOP?
Answer: Object-Oriented Programming; it organizes code using objects and classes.

4️⃣ Name the four pillars of OOP.
Answer: Encapsulation, Inheritance, Polymorphism, Abstraction.

5️⃣ What is encapsulation?
Answer: Binding data and methods together and restricting direct access.

6️⃣ What is inheritance?
Answer: When a class derives properties and methods from another class.

7️⃣ What is polymorphism?
Answer: One interface, multiple implementations.

8️⃣ What is abstraction?
Answer: Hiding implementation details and showing only essentials.

9️⃣ What is an interface?
Answer: A contract that defines methods without implementation.

🔟 What is method overloading?
Answer: Multiple methods with the same name but different parameters.