What is the difference between the Singleton Pattern and a Static Class?

What is the difference between the Singleton Pattern and a Static Class?

The Singleton Pattern ensures a class has only one instance and provides a global point of access to it. A Static Class, on the other hand, cannot be instantiated and only contains static members.

Can you give me an example of when to use the Singleton Pattern?

Sure! Use the Singleton Pattern when you need to control access to a shared resource, like a configuration manager.

Are there any downsides to using the Singleton Pattern?

Yes, it can introduce global state into your application, making it harder to test and maintain.

What about the performance of Static Classes compared to Singletons?

Static Classes are generally faster since they don't require instantiation, but Singletons provide more flexibility.