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. Name of the method to be executed






2. [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.






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






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






5. 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






6. All objects are accessed using...






7. @property - is using methods...






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






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






10. 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 _.






11. Class methods typically either create






12. NSArray - class...






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






14. Execution of the break statement...






15. Reducing details to focus on the core concepts






16. 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






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






18. Property List...






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

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20. super - is used...






21. NSNumber - class...






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






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






24. The integer prefix is...






25. Classes describe two things...






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






27. UIView - designated initializer...






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






29. NSValue - class...






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






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






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






33. Ready-made instances...






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






35. 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....






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






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






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






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






40. 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






41. UITableViewController is a subclass of...






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






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






44. When do you take ownership?...






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






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






47. Three ways instances are created...






48. A message is always contained in square brackets - and has three parts






49. Reference Counting...






50. Designated initializer makes sure that every...