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. In general - class methods tend to be factory methods - that is...






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






3. @property - is using methods...






4. A UITableView usually needs three different pieces...






5. Hold data and know nothing about the user interface






6. A method in a _ is required unless its preceded by an @optional.






7. Ready-made instances...






8. A view is a subclass of _






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






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






11. A pointer to the object being asked to execute a method






12. Execution of the break statement...






13. At the top of any implementation file...






14. We can use dot notation to reference...

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


15. Class methods do not operate on an _ or have any access to _ variables....






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






17. Designated initializer makes sure that every...






18. When do you take ownership?...






19. Reducing details to focus on the core concepts






20. NSNumber - class...






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


22. A responder is responsible for...






23. Categories are an Objective C way to add _ to an existing class without subclassing






24. 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






25. 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.






26. Any individual object belonging to any class...






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






28. Reference Counting...






29. NSDictionary...






30. NSSet...






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






32. [Instance Variables] The code it gets from its class and in a sense is shared with all other instances of that class - but the _ belong to it alone.






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






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






35. Primitives and C Structures...






36. When an object is added to a NSMutableArray - that object is sent the message to retain;...






37. NSString objects are usually sent _ rather than _...






38. In Objective C - the name of a setter method is set plus the name of the instance variable it is changing - for example PossessionName would be...






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






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






41. If a break statement is executed from within a set of nested loops...






42. A view is an...






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






44. UIView - designated initializer...






45. In the last line of an init method...






46. When an object is removed from an NSMutableArray - that object is sent the message release;...






47. Center and frame are used to _ your view






48. You use _ to implement the view






49. A view exists within a hierarchy. The window (an instance of UIWindow) is a view and the root of the hierarchy. It has _ (that appear on the window). Those views can also have _.






50. The root view controller typically creates the next view controller - and the next _ creates the one after that