The Write and Warn methods each have three overloads. The first one (shown only with Write in the previous example) accepts a single string that is displayed in the Message column. The second overload also accepts a category name as demonstrated with the Warn method. The final overload, not shown in the Try It Out exercise, also accepts an Exception object whose message will be added to the trace output. This is useful to trace the information of an exception in a Catch block.