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

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

Namespaces in C# are used to organize code and prevent naming conflicts. They allow you to group related classes, interfaces, and other types.

Can you give me an example of how to define a namespace?

Sure! You can define a namespace using the namespace keyword. For example:

namespace MyApplication.Utilities {
    public class Helper {
        // Class implementation
    }
}

How do I use a class from a namespace in another file?

You can use the using directive at the top of your file. For example:

using MyApplication.Utilities;

class Program {
    static void Main() {
        Helper myHelper = new Helper();
    }
}

What happens if I don't use namespaces?

Without namespaces, you risk naming conflicts, especially in larger projects. It can lead to ambiguity and errors when two classes have the same name.