C# private, static, and readonly

Question

I was reviewing some code for log4net and I came across this.

private static readonly ILog logger = LogManager.GetLogger(typeof(AdminClient));

Answer 1

Sorry, I know this has already been answered and it's really old, but I wanted to let anyone who comes across this article know that this is how you set up a "Singleton" pattern. Anyone who wants to know more about the code example in the question will likely benefit from learning more about Singletons and how they are used (mediators, loggers, async callbacks, etc.).

// mothership stuff about singletons
http://msdn.microsoft.com/en-us/library/ff650316.aspx
http://msdn.microsoft.com/en-us/library/ff650849.aspx

// a great SO discussion about them
What is so bad about singletons?