Test your basic knowledge |

Cocoa Programming Basics

Subject : it-skills
Instructions:
  • Answer 47 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. Three types of collection classes provided by the Foundation: Sets - arrays and ________






2. __________ forwards events from the event queue to the appropriate application window






3. Class libraries come from an implementation of _________ such as Cocoa or GNUstep






4. ________ is the most general boxing class






5. A view implement target action uses _______ and -setAction methods to select the object to call and the method to execute






6. Actions of a view are implemented by ___________






7. To modify a boxed number you must first unbox it and then perform your primitive ________ and then rebox it






8. Cocoa objects that take variadic initializers






9. C and Objective C differ in representing _______






10. The two major additions to C by Objective-C are ________ and message sending






11. ________ is Foundation's simplest type of collection






12. _______ is a subclass (a class cluster) used to store any kind of single number from a char to a long






13. ________object is like a constant it can't be changed - NsString is constant but NsMutableString isn't






14. Instance variables that are pointers to other objects






15. Prints the result of sending "description" to an object






16. Two methods that must each concrete subclass of NSString override: -length and _________






17. Target-action is appropriate for simple view events like button presses but not for __________ with multiple interactions






18. A message send is a higher-level version of a ____________






19. NSValue can contain any _________ data type






20. A "class cluster" of NSValue objects which is used to store single numerical values of any type from a char to a long long






21. Ensures that every object that has been autoreleased gets sent the release message






22. ____________ is NSString's one public subclass - and also a class cluster






23. Core Objective C define only defines two classes: Object and ______






24. Interface Builder creates ___________ and instances of your own classes that may be joined to UI objects






25. This opens a function or method or class name as a term in XCode






26. __________ is a structure whose first element is a pointer to a class






27. The basic changeable and unchangeable arrays are: __________ and NSMutableArray






28. Objective-C is a set of _________-like object-oriented extensions to C






29. Objective C is a PURE SUPERSET of _____






30. Each segment of a _________ to be followed by an argument is suffixed with a colon






31. It is not an error to send a message to _______






32. _______ provides a build system & a code editor and a debugger






33. The _____ is used to represent a pointer to an object






34. You usually DON'T use NSNib ________






35. Methods that respond directly to user interface commands






36. ________is wrapping a primitive value in an object






37. The three components of a message send:receiver - __________- and [optional] arguments






38. The two ways of a new notifying a controller of a change: via an action; via a _________






39. The most important part of Objective-C is _______________






40. Here a delegate is used & a controller object that responds to a set of messages defined by the view






41. The four NON object types in Objective C: NSRange - ______ - NSSize and NSRect






42. The ________ class is the programmatic interface to nib files






43. __________ refers to an object's ability to look inside itself and change itself






44. Standard files included through XCode:<Cocoa/Cocoa.h> and the standard C and _____ libraries






45. __________ is mutable






46. _________ is a class cluster and never directly used






47. Objects created through methods that retain alloc or new or copy or _________ must be explicitly released