Summary

In this chapter, you learned about OOP and how it helps take complex problems and abstract them into simple concepts. C# has several useful features and, roughly every one or two years, a new language version is released. The features mentioned in this chapter are just some of the ways in which C# aids in productivity. You have seen how, by design, it allows for better, clearer code, less prone to error. C# is one of the best languages when it comes to productivity. With C#, you can make effective code, and quickly, because a lot of the boilerplate code is done for you.

Finally, you learned the SOLID principles and used them in an application. SOLID is not something you can just read and learn immediately; it takes practice, discussions with your peers, and a lot of trial and error before you get it right and start applying it consistently. However, the benefits are worth it. In modern software development, producing fast, optimal code is no longer a number one priority. Nowadays, the focus is a balance of productivity (how fast you develop) and performance (how fast your program is). C# is one of the most efficient languages out there, both in terms of performance and productivity.

In the next chapter, you will learn what functional programming is and how to work with lambdas and functional constructs such as delegates.