What is NameSpace?
It gives you a way to organize your classes, so that related classes are bound together in a namespace. It helps in large applications where different classes may be provided by different people, different teams, or even different organizations. Avoiding name clashes in large applications can be quite a headache, and in the past, developers have resorted to arcane naming conventions to ensure uniqueness for their class names. 13. Explain why exception handling is important to a completed application. When an unhandled exception occurs in an application, the application stops—the user can’t proceed, and any work he or she did immediately prior to the exception is lost. Exception handling provides a way to intercept and correct unusual occurrences that would otherwise cause these problems. 14. Describe the purpose of error pages and why they are needed. Because Web applications run over the Internet, some exceptions occur outside the scope of the application. This means that your applica
