What is encapsulation in C++?

What is encapsulation in C++?

Encapsulation is a fundamental concept in C++ that restricts access to certain components of an object. It helps in bundling the data and methods that operate on the data within one unit, typically a class.

Can you give me an example of encapsulation?

Sure! Here's a simple example:

class Box {
private:
    int length;
public:
    void setLength(int len) {
        length = len;
    }
    int getLength() {
        return length;
    }
};

In this example, the length variable is private, and can only be accessed through the public methods setLength and getLength.

Why is encapsulation important?

Encapsulation is important because it protects the internal state of an object from unintended interference and misuse. It also promotes modularity and maintainability in code.

What are the benefits of using encapsulation?

The benefits include improved code security, easier debugging, and the ability to change the internal implementation without affecting external code that uses the class.