What are the differences between attributes and interfaces in C#?

What are the differences between attributes and interfaces in C#?

Attributes in C# are used to add metadata to classes, methods, or properties, while interfaces define a contract for classes to implement.

Can you give me an example of how to use an attribute?

Sure! You can use the [Obsolete] attribute to mark a method as outdated. For example: [Obsolete("This method is deprecated.")] public void OldMethod() { }.

And how do interfaces work in C#?

Interfaces define methods and properties that a class must implement. For example: public interface IAnimal { void Speak(); }.

What happens if a class doesn't implement an interface?

If a class does not implement all members of an interface, it will result in a compile-time error.