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. All objects are accessed using...






2. Asking a class or object to execute a method






3. When making a tableView always...






4. When do you take ownership?...






5. 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.






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






7. 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.






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






9. 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.






10. The class is responsible for what instance variables the instance has - but not the _ of those variables.






11. Reducing details to focus on the core concepts






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






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






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






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






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






17. Primitives and C Structures...






18. Classes describe two things...






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

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20. A view is a subclass of _






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






22. UIImageView is used to...






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






24. Also - because arrays only hold a pointer to an object...






25. A _ handles touch events.






26. 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 _.






27. UIView - designated initializer...






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






29. Values to be supplied as the parameters to the method






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






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






32. 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 _.






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






34. NSSet...






35. NSNumber - class...






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






37. Center and frame are used to _ your view






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






39. Execution of the break statement...






40. Class methods typically either create






41. @property - is using methods...






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






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






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






45. super - is used...






46. Reference Counting...






47. NSValue - class...






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






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






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