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






2. Primitives and C Structures...






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






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






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






6. 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






7. Each class picks one _ as it's designated initializer....






8. Name of the method to be executed






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






10. Variable names tend to start with a _ letter; class names tend to start with an _ letter.






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






12. Asking a class or object to execute a method






13. A view is a subclass of _






14. A UITableViewController can fill all three roles of...






15. Origin of a view's coordinate system is _ left






16. When making a tableView always...






17. Defining variables - three parts...






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






19. Property List...






20. In object oriented languages - we call methods that get and set instance variables

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21. Files Owner...






22. Execution of the break statement...






23. Three ways instances are created...






24. Name of the new class - it's superclass - the instance variables that each instance of this class has - and any methods this class implements






25. Each individual instance is a bundle of data that it maintains. Typically that data is private - which means that it's encapsulated as well; no other object knows what that data is or in what form it is kept. The only way to discover from outside wha






26. The integer prefix is...






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






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






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






30. How do I implement my drawRect?






31. @property declares - and _ implements the setter and getter...






32. Values to be supplied as the parameters to the method






33. UIView - designated initializer...






34. NSValue - class...






35. class methods...






36. Each object does its own job - and presents to the rest of the world - to other objects - and indeed in a sense to the programmer - an opaque wall whose only entrances are the methods to which it promises to respond and the actions it promises to per






37. In a class method you cannot access...






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






39. 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....






40. Proceed through the loop - jump back to the top and check again






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






42. Designated initializer makes sure that every...






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






44. NSSet...






45. You use _ to implement the view






46. UITableViewController is a subclass of...






47. @property - is using methods...






48. 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.






49. A view represents a _ area






50. 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