CHAPTER 4 ANSWERS

 
  1. IBOutlet is the keyword you use to connect a UIKit property in a class to a UIKit object in Interface Builder.
  2. IBAction is the keyword you use to connect an event of a UIKit object in Interface Builder to a method in a class.
  3. Being the first responder means the user interface object is the first to handle events caused by user interaction.
  4. The NSCoding protocol is implemented to allow a class to be used with the NSKeyedArchiver class.