Can you explain the concept of namespace and how it is used in programming?

A namespace is a way to logically group classes, interfaces, structures, and other types in programming to avoid name conflicts and improve code organization.

In C#, a namespace allows creating a hierarchy that helps structure the project and use the same names in different contexts without conflicts.

Example:

namespace MyApp.Services {
    public class UserService {
        // class code
    }
}

namespace MyApp.Models {
    public class User {
        // class code
    }
}

Thus, you can have classes with the same names in different namespaces and refer to them via the full name, e.g., MyApp.Models.User.

This improves code readability and maintainability, especially in large projects.