How can I report exceptions in C#?

Question

I have this code in Java, that I used to report exceptions (throws FileNotFoundException, IOException, ClassNotFoundException).

Example:

private void functionName() throws FileNotFoundException, IOException, ClassNotFoundException{}

I need to do this in C#, how can I do that?

You can't. C# doesn't support declaring checked exceptions, or any type of exceptions for that matter, in the method signature. Best you can do is add some documentation that declares which exceptions are expected. — sstan
– sstan, Commented Dec 25, 2015 at 21:35
Possible duplicate of What are checked exceptions in Java/C#? — sstan
– sstan, Commented Dec 25, 2015 at 21:37
To add onto what @sstan said, you can use the /// <exception cref="FileNotFoundException">...</exception> tag, described here. This is just documentation, though, and not checked exceptions. — Nate Barbettini
– Nate Barbettini, Commented Dec 26, 2015 at 0:11
Here's an article on why the designers of C# choose not to include checked exceptions into the language: web.archive.org/web/20070314071137/http://msdn2.microsoft.com/… — Stefan Woehrer
– Stefan Woehrer, Commented Jan 14, 2016 at 10:30
Possible duplicate of How to use Java-style throws keyword in C#? — Aditya Korti
– Aditya Korti, Commented Jan 14, 2016 at 11:01

TheCrimulo · Accepted Answer · 2016-01-29 23:09:56Z

It's pretty simple. In C#, you can't directly use a throws statement, because there isn´t. You may want to use this code:

 private void functionName(){ throw new IOException();}

This throws an IOException. As IOException being a class, you need to create a new one, with new statement.

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