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






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






3. ________ is Foundation's simplest type of collection






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






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






6. Instance variables that are pointers to other objects






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






8. NSValue can contain any _________ data type






9. ________is wrapping a primitive value in an object






10. Cocoa objects that take variadic initializers






11. Methods that respond directly to user interface commands






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






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






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






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






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






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






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






19. C and Objective C differ in representing _______






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






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






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






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






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






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






26. You usually DON'T use NSNib ________






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






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






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






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






31. Actions of a view are implemented by ___________






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






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






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






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






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






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






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






39. __________ is mutable






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






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






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






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






44. ________ is the most general boxing class






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






46. Objective C is a PURE SUPERSET of _____






47. _________ is a class cluster and never directly used