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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. 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






3. Execution of the break statement...






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






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






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






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






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

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






10. When do we need to release our outlets?

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






12. NSArray - important methods...






13. How do I implement my drawRect?






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






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






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






17. The object to which a message is sent - the receiver can be referred to as self from inside the method that is invoked






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






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






20. What does autorelease mean?






21. Three ways instances are created...






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

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23. 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






24. When a view controller presents a modal view controller - the _ of the modal view controller is set to be the parent of the presenting controller






25. 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 _.






26. 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.






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






28. [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.






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






30. Why properties?






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






32. Primitives and C Structures...






33. Archiving works by creating an instance of _ - which is essentially just a container for data - and placing objects and their data inside it.






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






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






36. super - is used...






37. 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 _.






38. Center and frame are used to _ your view






39. NSNumber - class...






40. Each object does its own job - and presents to the rest of the world - to other objects - and indeed in a sense to the programmer - an opaque wall whose only entrances are the methods to which it promises to respond and the actions it promises to per






41. class methods...






42. When making a tableView always...






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






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






45. The integer prefix is...






46. A pointer to the object being asked to execute a method






47. A responder is responsible for...






48. Ready-made instances...






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






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







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