Chapter 6. Errors, Exceptions, and Code Refactoring

Every application might encounter errors during its execution, even when you spend several nights on testing the application and all the possible execution scenarios. Runtime errors are especially unpredictable because the application execution is conditioned by user actions. Because of this, error handling is a fundamental practice that, as a developer, you need to know in depth. In this chapter you learn how the .NET Framework enables handling errors and how to get information to solve problems deriving such errors. In other words, you learn about .NET exceptions. In addition, in this chapter you also learn about new tools in Visual Basic 2015 for refactoring your code. Refactoring is definitely a best practice for keeping your code well organized and clean, especially after you have run many tests in handling errors.