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. When do we need to release our outlets?

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






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

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4. Designated initializer makes sure that every...






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






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






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






8. UIView - designated initializer...






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






10. Reducing details to focus on the core concepts






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






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

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13. Reference Counting...






14. Execution of the break statement...






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






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






17. How do I implement my drawRect?






18. 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.






19. super - is used...






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






21. A _ handles touch events.






22. Files Owner...






23. Hold data and know nothing about the user interface






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






25. NSDictionary...






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






27. UITableViewController is a subclass of...






28. A block of statements identified by a name that can accept one or more arguments passed to it by value and can optionally return a value






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






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






31. The object to which a message is sent - the receiver can be referred to as self from inside the method that is invoked






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






33. A view is an...






34. UIImageView is used to...






35. Asking a class or object to execute a method






36. What does autorelease mean?






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






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






39. Views have three properties related to their location and size: @property _ _;






40. Class methods typically either create






41. NSValue - class...






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

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






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






45. 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....






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






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






48. When do you take ownership?...






49. A responder is responsible for...






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