In software development, adhering to design principles can significantly impact the maintainability and scalability of your code. One such principle is the Open/Closed Principle (OCP), which states that "software entities should be open for extension but closed for modification." This means that you should be able to add new features without altering existing code, thereby reducing the risk of introducing bugs. In this article, we will explore effective methods to implement OCP with practical code examples, demos, and results.