C# 7 and .NET Core 2.0 High Performance

Open Closed principle

As per the definition, the Open Closed principle states that software entities like classes, methods, interfaces, and others should be closed for modification and open for extension. This means we cannot modify the existing code and extend the functionality by adding additional classes, interfaces, methods, and so on to address any changes.

Using this principle in any application solves various problems, which are listed as follows:

• Adding new functionality without changing existing code produces fewer errors and does not require thorough testing
• Less of a ripple effect that is usually experienced when changing existing code to add or update functionalities
• Extensions are mostly implemented using new interfaces or abstract ...