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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* s2 = [s uppercase String]; Is an example of what kind of instance?






2. NSArray - class...






3. 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






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






5. NSValue - class...






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






7. Execution of the break statement...






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






9. Why properties?






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






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






12. The object to which a message is sent - the receiver can be referred to as self from inside the method that is invoked






13. 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...






14. Order of the declarations for methods. _ come first - followed by _ - followed by any other methods...






15. Files Owner...






16. When do you take ownership?...






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






18. Archiving works by creating an instance of _ - which is essentially just a container for data - and placing objects and their data inside it.






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






20. NSArray - important methods...






21. Primitives and C Structures...






22. NSNumber - class...






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






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






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






26. When the message endEditing: is sent to a view - if it or any of its subviews or currently the _ - it will resign its first responder statues - and the keyboard will be dismissed.






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






28. 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






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






30. 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....






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






32. Designated initializer makes sure that every...






33. 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 _.






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






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






36. 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.






37. id is a...






38. Objective C only allows for single inheritance - so in regards to class you only ever see the following pattern






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






40. UIView - designated initializer...






41. A view is an...






42. class methods...






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






44. A view is a subclass of _






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






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






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

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






49. When do we need to release our outlets?

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







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