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. NSNumber - class...






2. NSDictionary...






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






4. If the view has no subviews - create it programmatically; if it has subviews






5. 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....






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






7. In Cocoa Touch - the table view asks another object _ what it should display...






8. When the message endEditing: is sent to a view - if it or any of its subviews or currently the _ - it will resign its first responder statues - and the keyboard will be dismissed.






9. The integer prefix is...






10. Reference Counting...






11. C struct with a CGPoint origin and a CGSize size - in other words two c structs.






12. A _ handles touch events.






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

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






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






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






17. Name of the method to be executed






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






19. What does autorelease mean?






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






21. The designated initializer calls the _ designated initializer....

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






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






24. UIView - designated initializer...






25. Each object does its own job - and presents to the rest of the world - to other objects - and indeed in a sense to the programmer - an opaque wall whose only entrances are the methods to which it promises to respond and the actions it promises to per






26. An instance is a device for maintaining state. It's a box for _ of data.






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






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

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29. Variable names tend to start with a _ letter; class names tend to start with an _ letter.






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






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






32. A view represents a _ area






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






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






35. Hold data and know nothing about the user interface






36. if you implemented both the setter and getter - the @synthesize method...






37. Three ways instances are created...






38. NSDate - class...






39. Ready-made instances...






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






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






42. A command directed to an object is called an...






43. NSArray - class...






44. Classes describe two things...






45. 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






46. When making a tableView always...






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






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

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






50. Values to be supplied as the parameters to the method