What are the best practices for using static classes in programming?

What are the best practices for using static classes in programming?

When using static classes, ensure they are used for utility functions, avoid stateful behavior, and keep them thread-safe.

Can you give an example of a utility function in a static class?

Sure! A common example is a Math utility class with static methods like Math.max() or Math.min().

Should I avoid using static classes altogether?

Not necessarily. Use them wisely for stateless utility functions, but avoid them for complex logic or state management.

What are the downsides of using static classes?

Downsides include reduced testability, difficulty in mocking, and potential issues with state management in multi-threaded environments.