An in-depth, step-by-step guide to classes, interfaces and object-oriented programming (OOP) with C#

Necessary preparation

• Basic understanding of C# constructs: variables, type conversion, classes, conditionals and loops.

For those who want to

• Master classes and interfaces.
• Better understand object-oriented programming.

The Program 

1. About this Course.
2. Classes.
3. Association between Classes.
4. Inheritance — Second Pillar of OOP.
5. Polymorphism: Third Pillar of OOP.
6. Interfaces.
7. What’s Next.
8. Bonus: Students' Code Reviews.

What will you learn

• Work with classes, constructors, fields, properties, methods and indexers.
• Re-use code using inheritance and composition.
• Change the behaviour of an application by extending its code, rather than changing it.
• Use encapsulation to improve the robustness of the code and reduce the impact of change.
• Understand the problems with inheritance and how composition solves these problem.
• Develop loosely-coupled, testable and extensible applications using interfaces.