What are interfaces in C# and how do I use them?

What are interfaces in C# and how do I use them?

Interfaces in C# are contracts that define a set of methods and properties that implementing classes must provide. They allow for a form of polymorphism.

Can you give me an example of how to define and implement an interface?

Sure! Here's a simple example:

public interface IAnimal
{
    void Speak();
}

public class Dog : IAnimal
{
    public void Speak()
    {
        Console.WriteLine("Woof!");
    }
}

In this example, IAnimal is an interface with a Speak method, and Dog implements this interface.

What are the benefits of using interfaces?

Using interfaces promotes loose coupling, enhances code reusability, and allows for easier testing and maintenance.

Can a class implement multiple interfaces?

Yes, a class in C# can implement multiple interfaces, allowing it to inherit behaviors from different sources.