Test your basic knowledge |

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






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






3. In object oriented languages - we call methods that get and set instance variables accessors - individually we call them...

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4. A pointer to the object being asked to execute a method






5. When an object is removed from an NSMutableArray - that object is sent the message release;...






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






7. Any individual object belonging to any class...






8. Reference Counting...






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






10. Never access a view controller's view in that...

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11. A class inherits all _ from its superclass and can add as many as it wants for its own purposes....






12. When an object is added to a NSMutableArray - that object is sent the message to retain;...






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

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14. Delegation is an object oriented approach to






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






16. Categories are an Objective C way to add _ to an existing class without subclassing






17. Designated initializer makes sure that every...






18. Also if you send the NSObject the _ message - you own that object.






19. In the last line of an init method...






20. Three ways instances are created...






21. When making a tableView always...






22. Defining variables - three parts...






23. In a class method you cannot access...






24. UIImageView is used to...






25. If a class declares a _ that is different from its superclass - you must override the superclass' _ to call the new _...






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






27. If you aren't going to initialize an instance reference pointer at the moment you declare it by assigning a real value - it's a good idea to assign it _.






28. @property - is using methods...






29. Each _ has a 'designated' initializer method....






30. @property declares - and _ implements the setter and getter...






31. 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






32. A view is a subclass of _






33. In general - class methods tend to be factory methods - that is...






34. What happens when the last owner calls release?

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35. A method in a _ is required unless its preceded by an @optional.






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






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






38. Object Oriented based analogue to a function is called a...






39. When do we need to release our outlets?

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40. Instance Variables by default are called @protected meaning...






41. NSValue - class...






42. A _ handles touch events.






43. 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.






44. NSArray - important methods...






45. 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...






46. NSSet...






47. A function in the objective c library that simply displays or logs it's argument






48. Center and frame are used to _ your view






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






50. To load a Xib file manually - you use _