Sep 28, 2025 · 3 min read · By Book Definition: Software entities (classes, modules, functions, etc.) should be open for extension, but closed for modification. But what does it actually mean? 🤔Let's first see the example where OCP is violated: class NotificationService { ...
Join discussionMay 23, 2025 · 2 min read · Open/Closed Principle (OCP) Make your code ready for change — without breaking old stuff “A class should be open for extension but closed for modification.”— Bertrand Meyer What Does That Even Mean? Let’s break it down: Open for extension = You c...
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Apr 7, 2025 · 4 min read · Sealing a class or interface restricts the list of subclasses or implementations to a predefined set. For example, consider defining a Shape and restricting subclasses to be only triangles and squares. public class SealedClasses { sealed class Sh...
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Mar 28, 2025 · 3 min read · Definition The Open/Closed Principle is one of the SOLID principles in software design. It states that a component should be open for extension but closed for modification. This means that we can add new functionalities without altering the existing ...
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