Guided Notes
Classes & Objects
Classes and objects, attributes and methods, constructors, this, access modifiers, encapsulation, and packages.
Classes and objects
Slide 1 / 5Object-oriented programming (OOP) models programs as objects that combine data and behavior.
• A class is a blueprint: it defines what data (attributes) and behavior (methods) its objects have. • An object is one instance created from the class.
class Car { … } is the blueprint; new Car("Volvo", 2024) and new Car("BMW", 2021) are two separate objects, each with its own data.
OOP makes code reusable and keeps related code together.
