Elance Actionscript 3 Test Answers 2015

What keyword brings control out of a loop?

split

break

end

stop

Read the following code: var str1:String = "foobar"; var str2:String = "helloWorld"; var str3:String = (str1.length > 5) ? str1 : str2; trace(str3); What will be the output?

foobar

There will be no output

helloWorld

IllegalOperationError

When started, how will the following Timer execute? var timer:Timer = new Timer(3000,0); will run for:

it will not run

3s - 1time

3000ms - Infinite

300ms - 1time

Which of these errors does not occur at runtime?

Compile time error

Runtime error

Programming error

Synchronous error

What type of number is returned by Math.asin()?

Degree

Radian

Cosine

Whole

When using addChild() to add a child object, what does the "child" get added to?

The timeline

The Display List

A Movie Clip

_root

Sprite is a class of the following package:

flash.mob

flash.graphics

flash.display

flash.sprite

Which is NOT a valid access modifier?

These are all valid access modifiers

internal

private

protected

What is the output of the following snippet? var animal1:String = "Lions"; var animal2:String = "Dogs"; var zoo:Array = new Array(animal1, animal2, " and Bears"); zoo[1] = "Tigers"; trace(zoo);

Nothing; the function throws a compiler error

Lions,Tigers, and Bears

Tigers,Dogs, and Bears

Tigers,Lions, and Bears

Which class is used to load an XML File?

URLLoader

NetLoader

Loader

FileLoader

To detect when an object has entered into a stage we listen for:

obj1.addEventListener(Event.Init,fn);

obj1.addEventListener(Event.InitStage, fn);

obj1.addEventListener(Event.ADDED_TO_STAGE,fn);

obj1.addEventListener(Event.ENTER_FRAME,fn);

What is the result of the following code? var b:Array = [1,2,3].map(function(i) { return i+1 }); trace(b);

2,3,4

undefined

error

1,1,1

What class is needed to change the alignment of text in a TextField?

TextDisplayMode

TextFormat

Format

TextFieldAutoSize

What does the stop() action do?

The code progress stops until play() is called

It stops playback in the timeline it is called in

It stops playback in the _root timeline

Flash doc pauses until the user presses “return”

The proper syntax for assigning an object literal is:

var obj:{"foo", "bar"}

var obj:Object = {"foo", "bar"}

var obj:Object = {prop1:"foo", prop2:"bar"}

var obj:{prop1:"foo", prop2:"bar"}

What event is dispatched when a Loader finishes loading?

Event.REQUEST_COMPLETE

Event.COMPLETE

Event.COMPLETE_REQUEST

Event.LOADING_COMPLETE

What symbols represent an XML literal tag delimiter?

< >

{ }

[ ]

( )

How would you load an image from an external file?

url = new URL("file location");

var urlReq:URLRequest = new URLRequest("file location");

var ldr = new loader("file location");

var URLRequest = ("file location");

var loader = new URL("file location");

Choose the BEST appropriate data type for the following situation: A teacher would like you to record a list of student names and grades in an array.

String

uint

int

Char

On an Event handler function, how do you know which item fired the event ?

By accessing the parent property of the event

It is impossible

By accessing the target property of the event

Which of these is a valid variable declaration?

var myVar = "";

var myVar:String;

var myVar:String = new String();

var myVar:String = "";

All of them.

Which method will call the constructor of a parent class?

branch()

super()

constructor()

parent()

public function someFunction(value: Number) { switch(value) { case 5: trace ("Hello"); case 9: trace ("World"); } trace("Apples"); } What would the output be if someFunction(4) were called?

Nothing; the function would throw a compiler error

HelloWorldApples

Hello World Apples

Apples

Which keyword allows a child class to overwrite a parent class's method?

override

final

static

overwrite

To detect when an object was entered to stage we listen for:

ADDED_TO_STAGE

ADD_STAGE

ADDED_INTO_STAGE

ADDED

The function Date.getDay() will return a zero for what day of the week?

Wednesday

Sunday

Monday

Saturday

The correct syntax for removing an object from a specific index position of the stage is:

stage.removeChild(index);

stage.removeChildIndex(index);

stage.removeChildAt(index);

stage.remove(index);

var check:Boolean = 0; will have value of?

undefined

false

true

What is the difference between .swc and .swf?

.swc is for graphics

.swc can be imported as a standalone library

none

.swf is more lightweight

Which class can be used to change the color of a display object?

Transform

Matrix

ObjectFormat

ColorTransform

How do you create a circle?

obj.graphics.drawCircleObject();

obj.graphics.circle();

obj.graphics.drawCircle();

obj.grafics.circle();

The addEventListener() function is used to ________.

Add an event

Hide an event listener

Remove an event

ButtonOne.addEventListener(MouseEvent.CLICK,runA); ButtonTwo.addEventListener(MouseEvent.CLICK,runB); What happens when ButtonOne's click event is triggered?

Both runA and runB are called

Neither runA nor runB are called

runA is called

runB is called

What is the smallest amount by which the Timer class measures time?

Nanoseconds

Frames

Seconds

Milliseconds

How do you add an object to the display list?

add(object);

addChild(object);

addToDisplay(object);

addToStage(object);

What is the import statement for Mouse Click events?

flash.MouseEvent.MouseClick;

flash.events.MouseEvent;

flash.display.MovieClip.MouseEvent;

flash.event.MouseClick;

flash.display.MouseClick;

Which statement can be used to exit an otherwise infinite for loop?

default;

skip;

exit;

break;

Which of the following is NOT a function of the String class?

concat

substr

substring

color

How do you end filling on a shape object?

obj.end();

obj.graphics.end();

obj.gfx.endFill();

obj.grafics.endFill();

obj.graphics.endFill();

Which event class can be used to tell if a user clicks on an object?

MouseEvent

ClickEvent

Event

CursorEvent

What expression will insert a new line into a String?

\new

newline

break

Which function of the String class returns the number of characters in a string?

size()

chars()

length()

characters()

Which of these is a valid variable declaration?

var a:Number = 0;

var int a = 0;

a => 0

variable a = 0;

What element appears above and below lines of annotated code to distinguish them from working code?

*/ and /*

/< and >/

<< and >>

/* and */

Which one of the following is a strict type declaration?

var myVar = new Sprite();

var myVar:Sprite = new Sprite();

var myVar = Sprite();

var myVar:* = new Sprite();

The correct syntax for opening a webpage using the default web browser is:

open(new SiteRequest("www.web.site"));

navigateToURL(new URL("www.web.site"));

navigateToURL(new URLRequest("www.web.site"));

navigateToSite(new Site("www.web.site"));

To display messages on the console we type:

console.log('foo');

trace('foo');

print('foo');

console('foo');

To disable mouse selection to an InteractiveObject, the correct syntax is:

item.mouseEnabled = false;

item.disableMouse()

item.enabled(false)

item.canClick = false;

What is a Sprite?

A display object container

A woodland fairy

A bitmap image

A data type similar to a String

What is the method to add a DisplayObject on the DisplayList ?

addChild()

load()

push()

addItem()

Which of the following is a function of the MovieClip class?

play()

end()

halt()

gotoAndHalt()

What is the output of the following snippet? var string1:String = "Hello World"; var string2:String = "Hello World"; if (string1 == string2) { trace("TRUE"); } else { trace("FALSE"); }

TRUE

Neither; the code results in a compile time error

Neither; the code prints out nothing

FALSE

Choose the BEST appropriate data type for the following situation: Lucy wants to store the names of the animals at the zoo into an array of variables.

Char

Word

Int

String

What is the correct function to call in order to open an external url?

navigateToURL(new URLRequest("www.web.site"));

navigateToURL(new URL("www.web.site"));

open(new SiteRequest("www.web.site"));

navigateToSite(new Site("www.web.site"));

What is the modular and performance-oriented concept upon which ActionScript is built?

Script Code Programming

Procedural Programming

Functional Programming

Object Oriented Programming

To bind an event listener the correct syxtax is:

item.addListener('event',function);

item.listener('event',function);

item.addEventListener('event',function);

item.eventListener('event',function);

To communicate with Javascript the correct synxtax is:

Interface.call('foo');

ExternalInterface('foo');

ExternalInterface.call('foo');

External.call('foo');

Which class can be used to find the size in bytes of your SWF or other media file?

FileSize

LoaderInfo

Loader

FileData

Sprite is a class of the following package:

flash.display

flash.graphics

flash.display.graphics

flash.displaycore

Referring to the index position of an array item that doesn't exist will throw which error?

EvalError

RangeError

DefinitionError

SizeError

What is the name of the function of the StringUtil Class that removes all white spaces from the beginning and end of a String?

trim()

clean()

removeWhiteSpace()

cut()

What is a correct syntax to cast a String "str" into a Number?

newNum = Number(str);

newNum = stringToNumber(str);

newNum = str.Number();

newNum = cast(str, Number);

Which is required to download images from another domain?

allowdomain policy file

crossdomain policy file

username and password

serial number

Choose the BEST appropriate data type for the following situation: Your boss wants you to calculate the percentage of people that donated more than five dollars to your non-profit.

int

Number

long

String

Which of the following is not a primitive type in ActionScript 3.0?

Number

String

Array

Boolean

Which of the following is an example of a bitwise operator

Which method allows you to join two Arrays into a new Array?

var myNewArray:Array = myArray1 + myArray2;

var myNewArray:Array = myArray1+=myArray2;

var myNewArray:Array = myArray1.concat(myArray2);

var myNewArray:Array = join(myArray1, myArray2);

The correct syntax for testing for overlap between the bounding boxes of two objects is:

obj1.hitTestPoint(obj2);

obj1.hitTestObject(obj2);

obj1.hitTestBox(obj2);

obj1.hitTest(obj2);

How can you retrieve an attribute from an XML variable?

myXML.item.source;

myXML.item.@source[source];

myXML.item.@source;

myXML.item.source[source];

In the event of an infinite recursion, what exception will be thrown?

BreakError

IllegalOperationError

TimeoutError

StackOverflowError

What is the default maximum size allocated by the user for shared objects?

1 KB

1 MB

100 KB

10 KB

How do you properly remove c in: var c:MovieClip = new MovieClip(); c.addEventListener(Event.ENTER_FRAME, myFunction); addChild(c);

removeChild(c);

delete c;

c.removeEventListener(Event.ENTER_FRAME, myFunction); removeChild(c);

Which class can be used to read the URL that your SWF or media file is currently running on?

Stage

Security

LoaderInfo

Loader

What object can't be added to display list directly?

TextField

SimpleButton

Bitmap

Shape

BitmapData

If a Timer is set with a repeatCount of 0 (zero), how many times will the timer run?

It will throw an error

Infinitely many

Zero

One

What is the difference between .swc and .swf?

.swc is a library of assets, .swf is for Flash Professional only

.swc is an executable packet, .swf is a library

.swc is for Flex, .swf is for Flash Professional

.swc is a class packet, .swf is an executable

To dispatch an event with a custom type the correct syntax is:

this.dispatchEvent('event');

this.dispatchEvent(new Event('myEvent'));

this.dispatchNewEvent(new Event('event'));

this.dispatch(new Event('myEvent'));

To successfully remove an event listener the correct syntax is:

this.removeEventListener('event');

this.removeEvent('event',function);

this.removeEventListener(new Event('event'),function);

this.removeEventListener('event',function);

ActionScript 3.0 is related most closely to ________.

Perl

JavaScript

Java

What is an appropriate class to utilize when importing data from an external file?

FileReference

URLLoader

There is no such class

URLFile

What access modifier hides a variable or function?

(none of these)

final

private

hidden

To skip the remaining code in a loop and proceed to the next cycle without leaving the loop you would type

return;

continue;

break;

exit;

Which property of an event listener can be set to allow for garbage collection of that listener?

priority

useWeakReference

useCapture

collected

What is the name of the variable that passes arguments into a flash movie (.swf)?

SWFVar

FlashVars

FlashVar

SWFObject

Which video format is AIR and Flash Player NOT compatible with?

FLV

MP4

M4A

OGG

What method is used to find the character at position (i) in a String (s)?

s.getCharPos(i)

s.getChar(i)

s.charCodeAt(i)

s.charAt(i)

What will be in output console? var a: Sprite = new Sprite(); var b: Sprite = a; a = null; trace(b);

BreakError

IllegalOperationError

StackOverflowError

[object Sprite]

How do you access a specific child of a container Sprite?

mySprite.getChildByIndex(index);

mySprite.getChildByName('child');

mySprite.getChild('child');

mySprite.getChildren(index);

What is the default maximum size for a remote shared object?

5 MB

512 kB

100 kB

1 MB

Read the following code: var i:int = 5; var s:String = "5"; trace(i==s); trace(i===s); What will this code output?

true, false

true, true

false, false

false, true

Which of the following text controls allows the user to input text? i. Text ii. TextArea iii. TextInput iv. RichTextEditor

i, iii, and iv

ii, iii, and iv

i, ii, and iii

i, ii, and iv

Read the following code: var bool1:Boolean = true; var bool2:Boolean = false; trace(bool1 ||= bool2); trace(bool1 &&= bool2); What will be the output?

false, true

true, true

false, false

true, false

Which one is a valid method of opening a link in ActionScript 3?

getURL(new URLRequest("http://google.com"), "_blank");

navigateToURL("http://google.com", "_blank");

navigateToURL(new URLRequest("http://google.com"), "_blank");

getURL("http://google.com", _blank);

How do you store data in a Dictionary?

dictionary.push('key');

dictionary['key'].push('key');

dictionary = 'key';

dictionary[key] = 'key';

What property of an event listener refers to the object actively processing an Event object?

currentTarget

target

listener

currentObject

Which of the following ways can be used to concatenate String str1 and String str2? 1). str1 = str1 + str2; 2). str1.concat(str2); 3). str1.concat(str1, str2); 4). str1 += str2;

All

1, 3, and 4

1, 2, and 3

1, 2, and 4

What will be in output console? var a: Sprite = new Sprite(); var b: Sprite = a; a = null; trace(b);

undefined

[Object Sprite]

nothing

null

The volume of a sound can be adjusted using what class?

SoundMixer

Sound

SoundChannel

SoundTransform

What is the output of the following snippet? var world:Number = 3; trace("Hello " + world + 3 + "3");

Hello world 6

Hello 333

Hello world 33

Hello 36

Which of the following is a function of the Timer class?

reset()

tick()

progress()

restart()

To cast a class as a specific type the correct syntax is:

type:myType = new Type(myType);

type:myType = new Type();

type:myType = new myType();

type:myType = new Type() as myType;

Which of the following is a valid way to create a Vector of type String? i. var v: Vector.<String> = new <String>["str1", "str2", "str3"]; ii. var v:Vector.<String> = new Vector.<String>(); iii. var v:<String>Vector = new <String>Vector(); iv. var v: <String>Vector = ["str1", "str2", "str3"];

i and ii

All of these

i and iv

i, ii, and iii

Which keyword will prevent a method from being overwritten by a child class?

protected

final

native

override

What are the three phases of the event flow?

listen, catch and register

capture, target and bubbling

hold, acquire and callback

addListener, callback and removeListener

To display hand cursor over a Sprite you declare:

mouseChildren = true;

useHandCursor = true;l

showHandCursor = true;

cursor = pointer;

What does the following display? for each (var someVar in someArray) { trace(someVar); }

The contents of the array someVar

The contents of the array someArray

None of these

The someArray of someVar

What is AVM1Movie ?

AVM1Movie is a simple movie played in the the AS3 Virtual Machine

AVM1Movie does not exists in ActionScript 3.0

AVM1Movie is a class that represents AVM1 movie clips, which use ActionScript 1.0 or 2.0.

Which of these functions of ArrayCollection adds an item at the end of a collection?

add()

addItem()

splice()

append()

Which of the following will add the element someElement to the end of the Array someArray?

someArray.append(someElement);

someArray[someArray.length] = someElement;

someArray.add(someElement);

someArray[0] = someElement;

Which of the following will NOT be garbage collected?

sprite.addEventListener(MouseEvent.Click, myFn,false,0,true);

sprite.addEventListener(MouseEvent.Click,myFn);

this.removeChildByName('mySprite');

sprite = null;

What is the result of the following code: import flash.utils.getDefinitionByName; var ClassReference:Class = getDefinitionByName("flash.display.Sprite") as Class; var instance:Object = new ClassReference(); trace(instance);

[object Object]

[object Sprite]

[object Class]

[object ClassReference]

How do you create style rules for textFields?

txt.setFontStyle(options);

txt.setTextStyle(options);

txt.setTextFormat(options);

txt.setStyle(options);

What property of the Date class does not accept 0 as a parameter?

month

date

day

hours

What class creates a two way connection between a client Flash/AIR application and a server?

ServerSocket

ServerConnect

LocalConnection

NetConnection

The following code will create: box.graphics.beginFill(0xffffff,0);

A white box

An empty box

Nothing

A black box

What is the difference between Shape and Sprite?

Shape cannot have event listeners attached.

Sprite cannot draw with graphics class.

Sprite cannot add children to it self.

Shape cannot add children to it self.

Which of the following snippets will set String myDay to the current day of the week?

var d:Date = new Date(); myDay = d.date;

var d:Date = new Date(); myDay = d.dayOfWeek;

var d:Date = new Day(); myDay = d.toString();

var d:Date = new Date(); myDay = d.day;

Which of these is not a valid class?

String

Number

Integer

MovieClip

none of these

Which class of objects can be focused by setting stage.focus?

DisplayObject

StaticText

MorphShape

InteractiveObject

What effect does the following code have? button.useHandCursor = true; button.buttonMode = true; button.mouseChildren = false;

No Mouse cursor

Resize Mouse cursor

Pointer Mouse cursor

Default Mouse cursor

How to change the text color of a TextField?

field.color = 0x000000;

field.fontColor = #000000;

field.textColor = 0x000000;

field.textColor = #000000;

Read the following code: var str1:String = "Hello world!"; trace(str1.substr(2,7)); What will be the output?

ello wo

ello w

llo wor

llo wo

To bind a Class to a bitmap object you do the following:

bitmap = new Class();

bitmap.addChild(myClass());

bitmap.addChild(myClass);

bitmap = new myClass();

To hide the standard context menu options, which function can you call?

removeBuiltInItems()

removeMenuItems()

hideBuiltInItems()

hideStandardMenu()

MovieClip is a direct child of which class?

Sprite

InteractiveObject

DisplayObject

Shape

Which is not a correct StageScaleMode Constant?

StageScaleMode.NO_SCALE;

StageScaleMode.EXACT_FIT;

StageScaleMode.NO_BORDER;

StageScaleMode.STRETCH;

Which of the following is NOT a property of a GeolocationEvent?

speed

heading

altitude

timezone

Which event fires when the display objects of a frame have loaded but before any frame scripts run?

exitFrame

frameConstructed

enterFrame

frameStart

To make a Sprite have hand cursor when hovered you do the following:

mySprite.useHandCursor = true;

mySprite.buttonMode = true;

mySprite.mouseChildren = true;

All of these

Tween easing is loaded by importing:

fl.motion.easing

flash.Tween.easing

fl.transitions.Tween.easing

fl.transitions.easing

What is the result of the following code: var b:Number = ["0","1","2","3","4"].indexOf(0); trace(b)

-1

undefined

The Loader object exists in which package?

flash.net

flash.display

flash.system

flash.media

What is an appropriate class to utilize when storing data to an external file?

URLFile

There is no such class

FileReference

URLLoader

What is the output of the following snippet? var s:String = "Pandas use tea cups to drink tea"; s.replace("tea", "");

Pandas use tea cups to drink tea

Pandas use tea cups to drink

Pandas use cups to drink

Nothing; the function throws a compiler error

Which of the following can you NOT do through the System class?

Read the user's clipboard

Set the user's clipboard

Read the amount of memory available to Flash/AIR

Close the Flash Player

Which is true about Stage?

Everything is a child of the stage.

Stage can be scaled.

The Stage needs instantiation

Stage object is optional.

What is the default access modifier if none is specified?

public

protected

private

internal

static

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