FCPIT

 In C++, classes are a fundamental building block of object-oriented programming (OOP). They allow you to encapsulate data and functions into a single unit. Here's a basic example of how to define a class in C++:

//cpp

#include <iostream>

// Class declaration

class MyClass {

        public: // Access specifier

        // Member variables (data members)

        int myInt;

        double myDouble;

        // Member functions (methods)

        void display() {

            cout << "Values: " << myInt << " and " << myDouble << endl;

        }

};

int main() {

        // Creating an object of the class

        MyClass obj;

        // Accessing and modifying member variables

        obj.myInt = 42;

        obj.myDouble = 3.14;

        // Calling member function

        obj.display();

        return 0;

}

In this example:

- `class MyClass` declares a class named `MyClass`.

- `public:` is an access specifier, indicating that the following members (variables and functions) will be accessible from outside the class.

- `int myInt;` and `double myDouble;` are member variables or data members.

- `void display();` is a member function or method.

- The `main()` function demonstrates how to create an object of the class, access and modify its member variables, and call its member function.

This is a simple example, and as you delve deeper into C++, you'll encounter more advanced features of classes, such as constructors, destructors, access specifiers (public, private, protected), and inheritance.