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. Delimiter for a list of protocols
<>
implementation file
==
IBAction


2. Word used to indicate that a user can't interact with a given element
'Software Development Kit'
attributes
viewDidLoad
static


3. Data type for true/false type variables
Xcode
accessible apps
IBAction)moveMe:(id)sender;
bool


4. The object currently in control and interacting with the user
modal
accessors
while(<boolean expression>){/*stuff to do here*/}
First Responder


5. Another name for format specification
performance
token
/*blah blah blah */
control-dragging


6. Postcondition repetition structure syntax
do{/*stuff to do here*/}while(<boolean expression>);
IBAction)moveMe:(id)sender;
conform
||


7. Shortcut for writing: count = count + 1;
count++;
ommand+Return
Touch Up Inside
NSDictionary


8. The Inspector you would access to gain access to various accessibility attributes
NSObject
NSString *userName;
hasShrunk==YES && hasMoved == YES
Identity Inspector


9. This type of app is mostly custom controllers and graphics
Xcode
Send the 'resignFirstResponder' message to the object that currently controls the keyboard (such as a text field)
NSString
immersive


10. An example of a common collection data type
storyboard
Command+R
NSArray
header


11. Syntax for block-comment
%@
Outlets ... pointer
/*blah blah blah */
Hold down the Option key and point to the other label. The distance will be shown


12. Syntax for sending an object a message with one parameter (p1)
[shrinkButton setTitle:@'Grow' forState: UIControlStateNormal];
scene
nonatomic
[<object variable> <method name>: p1];


13. Under what circumstances would you need an outlet for a button if it's just needed to trigger an action?

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14. Master class in iOS
NSObject
UIApplication
storyboards
segmented control


15. An array of background images called 'bgImages' has been declared as an instance variable in your header file. You have created a set of 5 background images stored in UIImage variables wp1 through wp5. Write a line of code that initializes the array.
storyboards
Attribute settings for some onscreen controls (like text areas) that analyze content and provide helpful links based on what they find. For example - phone numbers can be touched to dial the phone; web addresses can launch Safari if tapped - etc
bgImages = [[NSArray alloc] initWithObjects: wp1 - wp2 - wp3 - wp4 - wp5 - nil];
implicitly declare a matching instance variable


16. IDE
modal views
label
Integrated Development Environment
pound


17. The Round Rect Button is found in this library
rand( )%21
Object Library
NSString
YES


18. To zoom between an overview of the entire storyboard and the actual size view - ______ the storyboard background.
alpha ... 1
UITextView
instantiate
Double-click


19. Key sequence on a Mac to select between open application
Command + Tab
//blah blah blah
NSURLRequest
Right-click on it in the Navigator panel and choose 'Open as...' and select 'Source Code'


20. Document Apple uses to evaluate apps for the App Store
instance variable
Human Interface Guide
Document Outline Area or Outline View
XML


21. Key sequence to save an Xcode file
instantiate
Attribute settings for some onscreen controls (like text areas) that analyze content and provide helpful links based on what they find. For example - phone numbers can be touched to dial the phone; web addresses can launch Safari if tapped - etc
Command+S
segue


22. A fully opaque image has an _______ property value of ______
The Console area of the Debug area
alpha ... 1
Snapshot feature
Cocoa Touch


23. Key sequence to hide/show Utilities View
Control-click on the View Controller's icon to bring up a Connections dialog
Application Programming Interface
IBAction)moveMe:(id)sender;
Option+Command+ 0


24. The files that contain all the scenes you will use in a project.
Utility apps
storyboards
Model-View-Controller
ommand+Return


25. You have two labels in Interface Builder. One is selected (You clicked on it). How can you tell the distance between it and the other label?
XML
-
Hold down the Option key and point to the other label. The distance will be shown
if(<boolean condition>){/* stuff to do*/} else{ /*stuff to do*/}


26. The Inspector you would use to tweak the way interface objects appear
if(<boolean condition>){/* stuff to do*/} else{ /*stuff to do*/}
Treats the field as a password - hiding each character as it is typed
Control-click on the View Controller's icon to bring up a Connections dialog
Attributes Inspector


27. Data type for highly precise numbers with huge numbers of decimal places
utility
double
IBAction)moveMe:(id)sender;
iOS Simulator


28. Used to define a list of all methods and properties a class uses
interface file
UIApplication
Command+1
||


29. Indicates a lack of any value at all
-
nil
workspace
implicitly declare a matching instance variable


30. A ______ is where you edit a view and assign a controller to it.
Commmand-R
pound
scene
NSString *phrase = @'Hello World';


31. ______ enable applications to store multiple pieces of information in a single object
Collections
||
NSMutableString
interface file


32. Data type for numbers with 'tame' numbers of decimal points
parameter
float
Human Interface Guide
interface and implementation files


33. Calling a method is the same as...
sending an object a message
variable
IBOutlet
iOS Simulator


34. Declare and initialize a string that says: 'Hello World' whose identifier if 'phrase' . Use the shortest command possible.

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35. Directive to include other interface files that an application might need to access
import
contentSize
'Interface Builder'
retain - release - dealloc - autorelease


36. Alternative selection mechanism when many conditions exist
disclosure triangle
switch
inspector and library
NSString *phrase = @'Hello World';


37. Piece of information provided to a method when it is messaged
parameter
do{/*stuff to do here*/}while(<boolean expression>);
Cocoa is the development framework used for most native Mac OS X applications; Cocoa Touch is customized for a touch interface
protocols


38. Syntax to include the fictitious user-created file 'myFile.h'

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39. MVC
Cocoa Touch
view
Model-View-Controller
alpha ... 1


40. Purpose of 'Secure' attribute for text fields
id
nonatomic
Treats the field as a password - hiding each character as it is typed
int


41. The goal of the MVC design pattern
Isolate the functional components of an app
UITextView
UIViewController
IBOutlet


42. This keyword in the property directive is related to memory management and refers to the idea that we want to maintain control of memory issues
#import <UIKIT/UIKIT.h>
retain
Application Programming Interface
hash


43. You have an instance variable called 'myLabel' that is a member of UILabel. In an app - you set it's text property to 'Howdy' with the correctly-written command: myLabel.text = @'Howdy'; Re-write this command using [ ] message-sending syntax

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44. Other name for an *.xib file
[[<class name> alloc] init];
nibfile
wrap
[shrinkButton setTitle:@'Grow' forState: UIControlStateNormal];


45. SDK

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46. Allows you to easily track multiple versions of your project
First Responder
while(<boolean expression>){/*stuff to do here*/}
stub
Snapshot feature


47. These define to which messages the datasource and delegate respond
protocols
nil
Group
!


48. API
Group
NSURL
implementation file
Application Programming Interface


49. An _______ is used to enable your code to talk to objects within views
convenience
Command+0
IBOutlet
Program received signal: EXC_BAD_ACCESS


50. Opens the Xcode Quick Help Assistant
&&
IBOutlet
protocols
Option-click a symbol