C# ClassesLesson 24Free preview

C# OOP

This lesson is part of C# · All levels

Summary

OOP (Object-Oriented Programming) breaks down the problem into objects that have data in the form of fields and behavior in the form of methods. C# applies the four pillars of OOP: encapsulation, inheritance, polymorphism, and abstraction. With this approach, the code becomes more organized, easier to test, and reusable.

Key points

A class is a blueprint, whereas an object is an instance made from that class.
The four pillars of OOP: encapsulation, inheritance, polymorphism, and abstraction.
Encapsulation combines data and methods while limiting direct access to data.
Inheritance allows a descendant class to use and add members to the parent class.
Polymorphism makes a single behavior name can have different implementations in each class.

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