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. A delegate is a pointer to an object with a set of methods the delegate-holder knows how to call. In other words - it's _ from a later created object






2. How do I implement my drawRect?






3. Delegation is an object oriented approach to






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






5. After accessors have been defined in the header file...






6. When you send a message to _ - you are sending a message to _ - but demanding that the search for the method begin at the superclass....






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






8. It's class is sent the message alloc - which creates an instance of that class and returns a pointer to it - and then that instance is sent the message init - which gives its instance variables initial values.






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






10. A view is an...






11. Defining variables - three parts...






12. Three ways instances are created...






13. class methods...






14. You use _ to implement the view






15. Reducing details to focus on the core concepts






16. The designated initializer calls the _ designated initializer....

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17. Designated initializer makes sure that every...






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






19. SomeClass* aVariable = [[SomeClass alloc] init]; is an example of what kind of instance?






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






21. When an NSMutableArray is deallocated - it sends...






22. NSDate - class...






23. UIImageView is used to...






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






25. 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






26. Classes describe two things...






27. @property - is using methods...






28. If you aren't going to initialize an instance reference pointer at the moment you declare it by assigning a real value - it's a good idea to assign it _.






29. Execution of the break statement...






30. Never access a view controller's view in that...

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31. Name of the method to be executed






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






33. Hold data and know nothing about the user interface






34. For view controllers that are closely related - like a table view controller and its detail view controller - you can simply give them _ that point to each other.






35. If a class declares a _ that is different from its superclass - you must override the superclass' _ to call the new _...






36. An instance is a device for maintaining state. It's a box for _ of data.






37. NSNumber - class...






38. NSArray - important methods...






39. Only exists within the statement block there defined - outside of the block is fine






40. Property List...






41. When making a tableView always...






42. 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....






43. What happens when the last owner calls release?

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44. A class inherits all _ from its superclass and can add as many as it wants for its own purposes....






45. UIViewController has several methods that get called at certain times...






46. A command directed to an object is called an...






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






48. Reference Counting...






49. A collection object - an ordered list of objects that can be accesed by an index






50. Typically the designated initializer has parameters for the most important and frequently used _ of an object