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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. In object oriented languages - we call methods that get and set instance variables

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2. UIView - designated initializer...






3. When making a tableView always...






4. Files Owner...






5. @property - is using methods...






6. 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






7. When overriding a method - all you need to is _ - you do not need to declare it in the header file because it has already been declared by the superclass....






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






9. A callback is a function that is supplied in advance of an event - and...






10. Also - because arrays only hold a pointer to an object...






11. Reference Counting...






12. All objects are accessed using...






13. A responder is responsible for...






14. Whenever a UINavigationController is about to swap views - it sends out two messages






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






16. id is a...






17. Dynamic binding means that when we call a certain object's method - and there are several _ of that method - the right one is figured out at runtime.






18. What happens when the last owner calls release?

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






20. In any application with UINavigationController - the navigation controller...






21. The only reason to temporarily own an object - is...






22. When an NSMutableArray is deallocated - it sends...






23. A view is a subclass of _






24. Name of the method to be executed






25. Prefixing a character string with an @ symbol [specific - NSString class]...






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






27. If you have extra work you want to do on the view...






28. Execution of the break statement...






29. Objective C only allows for single inheritance - so in regards to class you only ever see the following pattern






30. Name of the new class - it's superclass - the instance variables that each instance of this class has - and any methods this class implements






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






32. A view represents a _ area






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






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






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






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






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






38. Just a floating point number - but we always use it for graphics.






39. You use _ to implement the view






40. 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 _.






41. NSArray - class...






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






43. Classes describe two things...






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






45. The designated initializer calls the _ designated initializer....

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46. The root view controller typically creates the next view controller - and the next _ creates the one after that






47. Use of class methods - there are three...






48. 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...






49. [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.






50. A _ handles touch events.






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