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. NSDate - class...






2. NSDictionary...






3. 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.






4. Files Owner...






5. 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.






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






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






8. Delegation is an object oriented approach to






9. Number one use of protocols in iOS...






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






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






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






13. 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 _.






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

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






16. The designated initializer calls the _ designated initializer....

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






18. Designated initializer makes sure that every...






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






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






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






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






23. Execution of the break statement...






24. A view represents a _ area






25. When making a tableView always...






26. NSValue - class...






27. Each _ has a 'designated' initializer method....






28. NSArray - class...






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






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






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

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32. Reducing details to focus on the core concepts






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






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






35. Instance Variables by default are called @protected meaning...






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






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






38. A responder is responsible for...






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






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

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41. If the view has no subviews - create it programmatically; if it has subviews






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






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






44. 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...






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






46. NSArray - important methods...






47. if you implemented both the setter and getter - the @synthesize method...






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






49. How do I implement my drawRect?






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