Can you list the main characteristics of objects in object-oriented programming?

Main characteristics of objects in object-oriented programming (OOP):

• State (fields/attributes) — data that describes the object.
• Behavior (methods) — functions or procedures that the object can perform.
• Identity — the uniqueness of the object, allowing it to be distinguished from others.

In C#, objects are created based on classes that define these characteristics. For example:

public class Car
{
    public string Color { get; set; } }  // state
    public void Drive()               // behavior
    {
        Console.WriteLine("The car is driving");
    }
}

Here, the Car object has a state (color) and behavior (Drive method).