When should I use static classes in programming?

When should I use static classes in programming?

Static classes are useful when you want to group related methods that don't require instance data.

Can you give me an example of a static class?

Sure! A common example is a utility class that provides static methods for mathematical calculations.

Are there any downsides to using static classes?

Yes, static classes can lead to less flexible code and make unit testing more difficult since they can't be instantiated.

When is it better to use instance classes instead?

Instance classes are better when you need to maintain state or when you want to take advantage of polymorphism.