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






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






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






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






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






6. Objective C is a PURE SUPERSET of _____






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






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






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






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






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






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






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






14. Cocoa objects that take variadic initializers






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






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






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






18. C and Objective C differ in representing _______






19. __________ is mutable






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






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






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






23. _________ is a class cluster and never directly used






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






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






26. ________ is the most general boxing class






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






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






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






30. Three types of collection classes provided by the Foundation: Sets - arrays and ________






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






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






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






34. ________is wrapping a primitive value in an object






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






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






37. Instance variables that are pointers to other objects






38. NSValue can contain any _________ data type






39. ________ is Foundation's simplest type of collection






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






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






42. Actions of a view are implemented by ___________






43. You usually DON'T use NSNib ________






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






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






46. Methods that respond directly to user interface commands






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