What are the four pillars of OOP? Encapsulation: Wrapping data and methods into a single unit (class). Abstraction: Hiding implementation details and exposing only necessary parts. Inheritance: Acquiring properties and behaviors from a parent class. Polymorphism: Ability to take multiple forms (method overloading and overriding). What are the four pillars of OOP? Encapsulation: Wrapping data and methods into a single unit (class). Abstraction: Hiding implementation details and exposing only necessary parts. Inheritance: Acquiring properties and behaviors from a parent class. Polymorphism: Ability to take multiple forms (method overloading and overriding). What is the difference between method overloading and method overriding? Overloading: Same method name but different parameters within the same class