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. Reference Counting...






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






3. Typically the designated initializer has parameters for the most important and frequently used _ of an object






4. 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....






5. Name of the method to be executed






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






7. 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...






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






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






10. Class methods typically either create






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






12. UIImageView is used to...






13. Reducing details to focus on the core concepts






14. Delegation is an object oriented approach to






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






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






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






18. UIView - designated initializer...






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






20. 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 _.






21. Defining variables - three parts...






22. A delegate is a pointer to an object with a set of methods the delegate-holder knows how to call. In other words - it's _ from a later created object






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






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






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






26. Center and frame are used to _ your view






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






28. Asking a class or object to execute a method






29. 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.






30. A view represents a _ area






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






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






33. [Instance Variables] The code it gets from its class and in a sense is shared with all other instances of that class - but the _ belong to it alone.






34. 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






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






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

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37. NSValue - class...






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






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

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40. When making a tableView always...






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






42. The integer prefix is...






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






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






45. Execution of the break statement...






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






47. When do we need to release our outlets?

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48. NSArray - important methods...






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






50. NSDictionary...