December 2013
Intermediate to advanced
132 pages
1h 58m
English
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CHAPTER 26
Error Handling
Error Handling Defined
When programs encounter unexpected errors, they behave unexpectedly or stop working altogether. Ideally, programmers would find and fix all bugs before programs are used, but there are some situations were programmers don’t have control of the entire situation. For instance, errors can happen when programs require resources like files or web sites that are no longer present.
The best practice in dealing with situations like this is to add error handling to a program. This means that when an error occurs, the program can recover or gracefully shutdown. NSError is the Foundation class that programmers ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.