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






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






3. NSDictionary...






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






5. Reducing details to focus on the core concepts






6. Property List...






7. NSDate - class...






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






9. 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






10. Each object does its own job - and presents to the rest of the world - to other objects - and indeed in a sense to the programmer - an opaque wall whose only entrances are the methods to which it promises to respond and the actions it promises to per






11. A view is an...






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






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

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14. You use _ to implement the view






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






16. class methods...






17. Primitives and C Structures...






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

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19. 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 _.






20. NSArray - class...






21. 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






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






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






24. 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.






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






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






27. Reference Counting...






28. 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 _.






29. A function in the objective c library that simply displays or logs it's argument






30. Three ways instances are created...






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






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






33. All objects are accessed using...






34. The designated initializer calls the _ designated initializer....

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






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






37. Classes describe two things...






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






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






40. After accessors have been defined in the header file...






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






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






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






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






45. Why properties?






46. 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 _.






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






48. Never access a view controller's view in that...

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49. Defining variables - three parts...






50. NSValue - class...