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






2. Classes describe two things...






3. NSString *s = @'Hello - World'; is an example of...






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






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






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






7. 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






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






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

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10. Inside a method - _ is an implicit local variable. Typically - _ is used so that an object can send a message to itself....






11. UITableViewController is a subclass of...






12. When do we need to release our outlets?

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13. NSArray - class...






14. In object oriented languages - we call methods that get and set instance variables accessors - individually we call them...

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15. NSValue - class...






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






17. Use of class methods - there are three...






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






19. Property List...






20. 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.






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






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






23. class methods...






24. 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






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






26. Designated initializer makes sure that every...






27. How do I implement my drawRect?






28. Prefixing a character string with an @ symbol [specific - NSString class]...






29. The notion that the data for an object is stored in it's instance variables and is accessed only by the objects methods. This maintains the integrity of the data.






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






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






32. C struct with a CGPoint origin and a CGSize size - in other words two c structs.






33. When do you take ownership?...






34. A view represents a _ area






35. NSDate - class...






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






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






38. 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....






39. [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.






40. Core foundation classes are prefixed with _ and suffixed with _






41. Reducing details to focus on the core concepts






42. if you implemented both the setter and getter - the @synthesize method...






43. Reference Counting...






44. 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.






45. initWithFrame: the designated initializer for UIView gives the view






46. Why properties?






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






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






49. Also if you send the NSObject the _ message - you own that object.






50. A _ handles touch events.