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






2. 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 _.






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






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






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






6. Asking a class or object to execute a method






7. Execution of the break statement...






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






9. A view is a subclass of _






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


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






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






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






14. Ready-made instances...






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






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






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






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






19. UITableViewController is a subclass of...






20. Center and frame are used to _ your view






21. 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...






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






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






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






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






26. @property - is using methods...






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






28. Keep view and model objects in sync - control the 'flow' of the application - and save the model objects out to the filesystem






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






30. 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.






31. When making a tableView always...






32. You use _ to implement the view






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






34. NSValue - class...






35. In the last line of an init method...






36. Three ways instances are created...






37. Classes describe two things...






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






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






40. Reducing details to focus on the core concepts






41. 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






42. Why properties?






43. Defining variables - three parts...






44. Designated initializer makes sure that every...






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






46. 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....






47. 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






48. 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 _.






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






50. Class methods typically either create