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Grokking the Low Level Design Interview Using OOD Principles

Encapsulation

Explore the principle of encapsulation in object-oriented programming, which binds data and methods within classes to hide internal states and provide controlled access. Understand how to implement encapsulation using getters and setters in popular OOP languages and grasp its benefits for maintainable and flexible code design.

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Data hiding

Data hiding is an essential concept in object-oriented programming. In simple terms, it can be defined as masking a class's internal operations and only providing an interface through which other entities can interact with the class without being aware of what is happening within.

The goal is to implement classes in a way that prevents unauthorized access to or modification of the original contents of a class by its instances (or objects). The underlying algorithms of one class need not be known to another class. The two classes can still communicate, though.

Components of data hiding

Data hiding can be divided into two primary components:

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