How do I throw checked exceptions in C#?

How do I throw checked exceptions in C#?

In C#, you can throw checked exceptions by using the 'throw' keyword followed by an instance of the exception class. For example, you can throw an exception like this: throw new InvalidOperationException("This operation is not valid.");.

Can you give me an example of a checked exception?

Sure! A common checked exception in C# is IOException. You might throw it when a file operation fails, like this: throw new IOException("File not found.");.

What happens if I don't catch a checked exception?

If you don't catch a checked exception, it will propagate up the call stack. If it reaches the top level without being handled, it will terminate the program.

Are there any best practices for throwing exceptions?

Yes, some best practices include using specific exception types, providing meaningful messages, and avoiding throwing exceptions in performance-critical code.