The Essence of OOP Is Messaging: Alan Kay’s Real OOP
When studying OOP, we always start by memorizing inheritance, encapsulation, and polymorphism.
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Object-Oriented Programming
Explore practical Object-Oriented Programming articles grounded in clear explanations and engineering tradeoffs.
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Object-Oriented Programming
Why Swift’s final Keyword Belongs on Classes (Performance & Design Summary)
You’ve probably heard someone say in a code review, “Please add final to this class.”
Read articleOOP Abstraction and Encapsulation: If You Always Confuse Them, This Article Ends It
When studying object-oriented programming (OOP), you inevitably encounter a major stumbling block.
Read articleOOP Polymorphism Explained: From Overriding to Protocols
Have you ever gotten confused trying to understand OOP polymorphism, from overriding to protocols, all at once?
Read articleOOP Encapsulation: Understanding Swift Access Control
When studying OOP, you hear “encapsulation” countless times, but when someone asks, “So how do you do it in code?”, you can suddenly go blank. You understand the concept, but your hands do not know what to write.
Read articleOOP: What Is It and How Does It Differ from Procedural Code?
There's a phrase you'll inevitably encounter while studying programming.
Read articleWhy Design Patterns Matter—and Why Not to Trust Them Blindly
The question “Do we still need to study design patterns?” comes up regularly in developer communities.
Read articleCoupling and Cohesion: The Roots of Software Design
The code clearly runs, but why does changing one feature require edits in so many places?
Read articleComposition vs. Inheritance: What “Favor composition over inheritance” Really Means
If you study object-oriented programming, you will inevitably encounter this sentence: “Favor composition over inheritance.”
Read articleThe Law of Demeter: When Method Chaining Becomes Bad Code
During code reviews, you’ve probably received feedback like this at least once.
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