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. Ready-made instances...






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






3. 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....






4. In any application with UINavigationController - the navigation controller...






5. 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 _.






6. How do I implement my drawRect?






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






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

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9. super - is used...






10. NSArray - important methods...






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






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






13. Class methods typically either create






14. Name of the method to be executed






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






16. Any other initializer a class has calls the _ designated initializer....

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17. 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.






18. A view represents a _ area






19. 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 _.






20. Asking a class or object to execute a method






21. A responder is responsible for...






22. Reference Counting...






23. Execution of the break statement...






24. A callback is a function that is supplied in advance of an event - and...






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






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






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






28. Whenever a UINavigationController is about to swap views - it sends out two messages






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






30. 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.






31. In general - in Objective-C - a reference to an instance is a _ - and the name of the data type of what's at the far end of that pointer is the name of the instances's _.






32. In Cocoa Touch - the table view asks another object _ what it should display...






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






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






35. NSArray - class...






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

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






38. A block of statements identified by a name that can accept one or more arguments passed to it by value and can optionally return a value






39. 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






40. All objects are accessed using...






41. 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






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






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






44. NSSet...






45. When do we need to release our outlets?

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46. @property - is using methods...






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

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48. To get the full path for a directory in the sandbox - you use the _ NSSearchPathForDirectoriesInDomains.






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






50. NSDate - class...