The COUNTIF function counts the number of cells within a range that meet the criteria entered

Which of the following statements is false?

a) As in a Windows Store app, the App class defines app-level event handlers (for events like the Launching, Activated, Deactivated and Closing), app-wide resources and more. b) The app-level event handlers are defined in class App’s code-behind file (App.xaml.vb)—only the Visual Basic compiler can add code to these event handlers to respond to any of these events. c) A WP8 app consists of one or more pages that are derived classes of PhoneApplicationPage (namespace Microsoft.Phone.Controls). d) As in Windows 8 UI, each page’s XAML specifies the controls that enable the user to interact with the page, and each page’s code-behind file defines the page’s functionality.

Answer the following statements true (T) or false (F)

1. In code that creates an instance of a class, you access the class object’s properties in the same way you would access public variables. 2. A property is a class member that behaves like a public field. 3. Some programmers begin the names of backing fields with an underscore to eliminate confusion between the field name and the property name.: T 4. The set accessor is executed anytime that a property is read.