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






3. In a class method you cannot access...






4. NSSet...






5. NSDictionary...






6. NSArray - important methods...






7. Property List...






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






9. In object oriented languages - we call methods that get and set instance variables

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10. Files Owner...






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






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






13. Primitives and C Structures...






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






15. 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....






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






17. Dynamic binding means that when we call a certain object's method - and there are several _ of that method - the right one is figured out at runtime.






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






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






20. When making a tableView always...






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






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






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






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






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

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26. A set of variables and associated methods. An object can be sent messages to cause one of its methods to be executed.






27. Three ways instances are created...






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






29. Execution of the break statement...






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






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






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






33. When do you take ownership?...






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






35. id is a...






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






37. The root view controller typically creates the next view controller - and the next _ creates the one after that






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

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39. NSValue - class...






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






41. A view represents a _ area






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






43. Why properties?






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






45. Hold data and know nothing about the user interface






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






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






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






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






50. Ready-made instances...