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iOS 5 App Development Objective C

Subjects : it-skills, apple
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. NSSet...






2. Why properties?






3. Each class picks one _ as it's designated initializer....






4. After accessors have been defined in the header file...






5. Files Owner...






6. NSDictionary...






7. How do I implement my drawRect?






8. The notion that the data for an object is stored in it's instance variables and is accessed only by the objects methods. This maintains the integrity of the data.






9. initWithFrame: the designated initializer for UIView gives the view






10. Typically the designated initializer has parameters for the most important and frequently used _ of an object






11. Core foundation classes are prefixed with _ and suffixed with _






12. class methods...






13. Reducing details to focus on the core concepts






14. When do we need to release our outlets?

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15. In general - in Objective-C - a reference to an instance is a _ - and the name of the data type of what's at the far end of that pointer is the name of the instances's _.






16. In Objective C arrays can hold only...






17. Archiving works by creating an instance of _ - which is essentially just a container for data - and placing objects and their data inside it.






18. Execution of the break statement...






19. id is a...






20. Any other initializer a class has calls the _ designated initializer....

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21. Number one use of protocols in iOS...






22. UIViewController has several methods that get called at certain times...






23. When a view controller presents a modal view controller - the _ of the modal view controller is set to be the parent of the presenting controller






24. SomeClass* aVariable = [[SomeClass alloc] init]; is an example of what kind of instance?






25. [Instance Variables] The code it gets from its class and in a sense is shared with all other instances of that class - but the _ belong to it alone.






26. A view exists within a hierarchy. The window (an instance of UIWindow) is a view and the root of the hierarchy. It has _ (that appear on the window). Those views can also have _.






27. Order of the declarations for methods. _ come first - followed by _ - followed by any other methods...






28. A UITableViewController can fill all three roles of...






29. You use _ to implement the view






30. Inside a method - _ is an implicit local variable. Typically - _ is used so that an object can send a message to itself....






31. To get the full path for a directory in the sandbox - you use the _ NSSearchPathForDirectoriesInDomains.






32. Origin of a view's coordinate system is _ left






33. Delegation is an object oriented approach to






34. A delegate is a pointer to an object with a set of methods the delegate-holder knows how to call. In other words - it's _ from a later created object






35. A _ handles touch events.






36. In Objective C - the name of a setter method is set plus the name of the instance variable it is changing - for example PossessionName would be...






37. What happens when the last owner calls release?

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38. Keep view and model objects in sync - control the 'flow' of the application - and save the model objects out to the filesystem






39. NSString* s2 = [s uppercase String]; Is an example of what kind of instance?






40. When you send a message to _ - you are sending a message to _ - but demanding that the search for the method begin at the superclass....






41. A view is a subclass of _






42. A set of variables and associated methods. An object can be sent messages to cause one of its methods to be executed.






43. The class is responsible for what instance variables the instance has - but not the _ of those variables.






44. NSString *s = @'Hello - World'; is an example of...






45. A UITableView usually needs three different pieces...






46. Name of the method to be executed






47. A message is always contained in square brackets - and has three parts






48. A collection object - an ordered list of objects that can be accesed by an index






49. We can use dot notation to reference...

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50. UIImageView is used to...






Can you answer 50 questions in 15 minutes?



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