C# Classes and Objects Tutorial — Learn Classes and Objects in C#

C# Tutorial: Classes and Objects

Define classes, create objects, write constructors, and understand instance methods.

Object-oriented programming

Classes are blueprints for objects. An object is an instance of a class.

C# is fundamentally object-oriented. Understanding classes and objects is central to writing C# professionally.

This interactive C# tutorial has 8 hands-on exercises. Estimated time: 20 minutes.

Define a class — A class has fields (data) and methods (behaviour).
Constructor — A constructor initialises an object when created with `new`.
this keyword — `this` refers to the current instance. Use it when parameter names shadow field names.
Multiple constructors — A class can have multiple constructors with different parameters (overloading).
Encapsulation with private — Use `private` fields with `public` methods to protect internal state.
Static members — Static fields and methods belong to the class, not instances.
ToString override — Override `ToString()` to control how your object prints.
Object initialiser syntax — Set public properties in a `{}` block after the constructor call.

C# Tutorial: Classes and Objects

Define classes, create objects, write constructors, and understand instance methods.

Classes are blueprints for objects. An object is an instance of a class.

C# is fundamentally object-oriented. Understanding classes and objects is central to writing C# professionally.

This interactive C# tutorial has 8 hands-on exercises. Estimated time: 20 minutes.

Define a class — A class has fields (data) and methods (behaviour).
Constructor — A constructor initialises an object when created with `new`.
this keyword — `this` refers to the current instance. Use it when parameter names shadow field names.
Multiple constructors — A class can have multiple constructors with different parameters (overloading).
Encapsulation with private — Use `private` fields with `public` methods to protect internal state.
Static members — Static fields and methods belong to the class, not instances.
ToString override — Override `ToString()` to control how your object prints.
Object initialiser syntax — Set public properties in a `{}` block after the constructor call.