What's the use/meaning of the @ character in variable names in C#?

Question

I discovered that you can start your variable name with a \'@\' character in C#. In my C# project I was using a web service (I added a web reference to my project) that was

Answer 1

The @ symbol allows you to use reserved keywords for variable name. like @int, @string, @double etc.

For example:

string @public = "Reserved Keyword used for me and its fine";

The above code works fine, but below will not work:

string public = "This will not compile";