Maintainable Code Using Object-Oriented Design Principles

Object-oriented design involves managing dependencies to enable effective handling of changes.

Object-oriented design aims to arrange dependencies for easy future change, and experimentation is critical.

Decisions should not be forced by the tools we are using or by unnecessary pressure.

Transparent code shows how changes will affect the code, and those changes should be proportional to the benefits. The code should be usable in different contexts and encourage the perpetuation of these qualities.

Object-Oriented Design achieves flexible code, making it easier to comprehend and change. It’s essential to keep the ability to make decisions later and ensure our changes stay the same.

Dependency Injection makes software dependencies explicit, enabling self-documenting code. Injecting dependencies removes unstable knowledge. Consider embedded references in a class that may change and isolate the reference to protect against change.

Injecting dependencies makes code easier to test and change, and the cost of implementation is low while the benefits are significant.

Defining defaults and isolating multi-parameter initialization makes code more transparent. Some classes are more likely to change than…