Error and Exception Handling
Apress eBooks · 2010
Even if you wear an S on your chest when it comes to programming, errors will undoubtedly creep into all but the most trivial of applications. Some of these errors are programmer-induced, the result of mistakes made during the development process. Others are user-induced, caused by the end user’s unwillingness or inability to conform to application constraints. For example, the user might enter 12341234 when asked for an e-mail address, obviously ignoring the intent of the request. Yet regardless of the error’s source, your application must be able to react to such unexpected errors in a graceful fashion, hopefully doing so without losing data or crashing the application. In addition, your application should be able to provide users with the feedback necessary to understand the reason for such errors and potentially adjust their behavior accordingly.