Hello! Today, we're learning about encapsulation in C++. Encapsulation bundles data and the methods that operate on that data into a single unit called a class. It's used to protect our data from access or modifications from outside the class.

Our goal is to understand encapsulation, how to implement it using private and public members in a class, and why it helps keep our code safe and organized. We'll use an example: solving a quadratic equation and learn to protect critical values.

Encapsulation is a core principle of object-oriented programming. It combines data and methods into one unit, called a class. This helps us hide the internal state of the object and only expose what's necessary.

Think of encapsulation like a pill capsule. Inside the capsule, there are different ingredients (data), but when you swallow it, you don't interact with these ingredients directly. Similarly, encapsulation helps control how data is accessed and modified.

In C++, we use private and public access specifiers to implement encapsulation. Private members are variables and methods that cannot be accessed directly from outside the class. We use them to hide the internal state of the object.