Can you explain the concept of classes in object-oriented programming?

In object-oriented programming, a class is a template or blueprint for creating objects. It describes the properties (fields) and behaviors (methods) that objects of this class will have.

A class combines data and functions that operate on that data into a single structure. This allows modeling real-world entities and their interactions.

Example in C#:

public class Car
{
    // Fields (properties)
    public string Brand { get; set; }
    public string Model { get; set; }
    public int Year { get; set; }

    // Method
    public void Drive()
    {
        Console.WriteLine($"Car {Brand} {Model} is driving.");
    }
}

// Usage
Car myCar = new Car { Brand = "Toyota", Model = "Corolla", Year = 2020 };
myCar.Drive();

Thus, a class defines the structure and behavior of objects, and objects are specific instances of the class with their own field values.