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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. What does autorelease mean?






2. Name of the method to be executed






3. Reducing details to focus on the core concepts






4. What happens when the last owner calls release?

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5. Property List...






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






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






8. UITableViewController is a subclass of...






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






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






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






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






13. 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






14. When do you take ownership?...






15. UIView - designated initializer...






16. Delegation is an object oriented approach to






17. Three ways instances are created...






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






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






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






21. A view is an...






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






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






24. NSArray - class...






25. Files Owner...






26. A view represents a _ area






27. Class methods do not operate on an _ or have any access to _ variables....






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






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

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30. When do we need to release our outlets?

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






32. 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.






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






34. [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.






35. Object Oriented based analogue to a function is called a...






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






37. Each _ has a 'designated' initializer 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. The root view controller typically creates the next view controller - and the next _ creates the one after that






40. The designated initializer calls the _ designated initializer....

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






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






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






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






45. 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 _.






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






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






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






49. NSSet...






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







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