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 an interface?

Sure! Here's a simple example:

public interface IAnimal
{
    void Speak();
}

This interface defines a method Speak that any implementing class must define.

How do I implement this interface in a class?

You can implement the interface like this:

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

What are the benefits of using interfaces?

Interfaces promote loose coupling, enhance code reusability, and allow for multiple inheritance of behavior, making your code more flexible.