Kunci Jawaban All Quiz Oracle Academy Java Fundamental 2017 Part 11 - DS Sanjaya

5/26/2018

Kunci Jawaban All Quiz Oracle Academy Java Fundamental 2017 Part 11 - DS Sanjaya

 About

 Contact

 Disclaimer

 Privacy Policy

 Sitemap

DS SANJ SANJA AYA Life with colorful experience experience

Home  Oracle Oracle  Kunci Jawaban All Quiz Oracle Academy Java Fund Fundamenta… amenta…

Kunci Jawaban All Quiz Oracle Academy Java Fundamental Fundamental 2017 Part 11 Penulis Dimas

Diterbitkan December Diterbitkan

26, 2017

Mau Study ke Ikuti Tes Baha Online nya di wallstreeten Selengkapnya Selengka pnya

TRENDING POST

Suka 0 Bagikan

1.

The Alice If control structure requires the false statement

to be populated. True or false?

Mark for Review

(1) Points https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 1/102

5/26/2018


True

False (*)

[Incorrect]

2.

Incorrect. Refer to Section 2 Lesson 8.

A conditional loop is a loop that will continue forever forever..

True or false?

Mark for Review

(1) Points

True

False (*)

[Incorrect]

3.


Identify an example of an Alice expression.

Mark for

Review (1) Points

"Hello World."

IF or WHILE

12 + 15 = 27 (*)

 https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

2/102

5/26/2018


True

False (*)

[Incorrect]

2.


A conditional loop is a loop that will continue forever forever..

True or false?

Mark for Review

(1) Points

True

False (*)

[Incorrect]

3.


Identify an example of an Alice expression.

Mark for

Review (1) Points

"Hello World."

IF or WHILE

12 + 15 = 27 (*)


2/102

5/26/2018


None of the above

[Incorrect]

4.


In Alice, which of the following programming

statements moves the cat forward the distance to the bird? Mark for Review (1) Points

this.Cat move {this.Bird getDistanceTo this.Cat / 2}

this.Cat move forward {this.Bird getDistanceTo this.Cat / 2}

this.Cat move forward {this.Cat getDistanceTo this.Bird} (*)

this.Bird move forward {this.Bird getDistanceTo this.Cat}

[Incorrect]

5.


If a value has been assigned to (is stored in) a

variable, that value will be overwritten when another value is assigned to the variable using the assignment "=" operator. operator. True or false?

Mark for Review

(1) Points

True (*)

False


3/102

5/26/2018


[Correct] 6.

Correct

What is the result of the following code?

Mark for Review (1) Points

x>y:0 x
x > y : false x < y : true

x>y:x>y x
x>y:1 x
x > y : true x < y : false (*)

[Incorrect]

7.


From your Alice lessons, variables are xed and

cannot be changed. True or false?

Mark for Review

(1) Points

True


4/102

5/26/2018


False (*)

[Incorrect]

8.


Which of the following programming instructions

commands the sh to continuously move forward a random speed between 0.5 and 1.0 meters, minus 0.25 meters, until it collides with the shark?

Mark for Review

(1) Points

(*)Decimal = shSpeed <- nextRandonm 0.5,1.0 while not blueTang is Colliding shark is true bluTang move foward, shspeed 0,25

[Incorrect]

9.


From your Alice lessons, animations should be tested

by the programmer before they are a re considered complete. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

10.

Correct

In which Alice class is the

https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 5/102

5/26/2018


addDefaultModelManipulation procedure located?

Mark for

Review (1) Points

myFirstMethod class

Object class

Quadruped class

Scene class (*)

[Incorrect] 11.


When presenting your Alice animation, it is not important

to give the audience a reason to listen to the presentation. True or false?

Mark for Review

(1) Points

True

False (*)

[Incorrect]

12.


What do lines 7, 10 and 13 do in the following following code?



6/102

5/26/2018


Export les called A, B, and num3.

Create a single le containing A, B, and the value of num3.

Print "A", "B" and the value of num3 on the screen. (*)

None of the above.

[Incorrect]

13.


If you want one message to display if a user is below

the age of 18 and a different message to display if the user is 18 or older, what type of construct would you use?

Mark for

Review (1) Points

if (*)

for all loop

do loop

while loop

[Correct]

14.

Correct

You want an event to happen when an object collides

with another object, which category of event handler would you https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 7/102

5/26/2018


choose?

Mark for Review

(1) Points

Mouse

Keyboard

Position/Orientation (*)

Scene Activation/time

[Incorrect]

15.


Which one of the following event listener types is not

available at the top-level of the addEvent drop down list in Alice?

Mark for Review

(1) Points

Mouse

Keyboard

Position/Orientation

Collision (*)

[Incorrect] 1.


From your Greenfoot lessons, if the condition in an if-


 8/102

5/26/2018


statement is true, the rst code segment is executed. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

2.

Correct

In Greenfoot, a method with what kind of return type is

used to learn more about an object's orientation?

Mark for

Review (1) Points

object return type

method return type

non-void return type (*)

void return type

[Incorrect]

3.


In Greenfoot, the body of the method is located in

between which of the following characters?

Mark for Review

(1) Points


9/102

5/26/2018


Asterisks **

Square brackets [ ]

Parnetheses ( )

Curly brackets { } (*)

[Incorrect]

4.


A variable is also known as a ____________.

Mark for

Review (1) Points

Method

Field (*)

Instance

Class

Syntax

[Incorrect]



10/102

5/26/2018


5.

In Greenfoot, methods can be called in the act

method. When the Act button is clicked in the environment, the methods in the method body of the act method are executed. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct] 6.

Correct

In Greenfoot, which of the following options are not

possible when associating an image le with an instance? Mark for Review (1) Points

Draw an image

Import an image

Select an image from the Greenfoot library

Add a video (*)

[Incorrect]

7.


In Greenfoot, what happens to an instance when the

Act button is clicked in the environment?

Mark for Review

(1) Points


11/102

5/26/2018


Only one instance moves until the pause button is clicked.

The instance executes all of the programming statements in their class's act method repeatedly until the scenario is stopped.

The class executes all of the programming statements in their instance's act method two times until the scenario is stopped.

The instance executes all of the programming statements in their class's act method once. (*)

The instance executes all of the programming statements in their class's act method two times until the scenario is stopped.

[Incorrect]

8.


From your Greenfoot lessons, the reset button resets

the scenario back to its initial position. True or false?

Mark

for Review (1) Points

True (*)

False

[Correct]

Correct


12/102

5/26/2018


9.

In Greenfoot, which of the following are execution

controls?

Mark for Review

(1) Points (Choose all correct answers)

Act (*)

Move

Run (*)

Speed (*)

Turn

[Incorrect]

10.


What does an instance of the World class do?


Provide the source code for instances.

Provide the background scenery for the scenario. (*)

Provide the acting objects for the scenario.


13/102

5/26/2018


Provide the superclass for acting objects.

[Incorrect] 11.


From your Greenfoot lessons, how do you know the

program does not contain syntax errors?

Mark for Review

(1) Points

Write the code.

Review the documentation.

Inspect the instances.

Compile the code. (*)

[Incorrect]

12.


From your Greenfoot lessons, classes can only use

the methods they have inherited. They cannot use methods from other classes. True or false?

Mark for Review

(1) Points

True

False (*)

[Incorrect]



14/102

5/26/2018


13.

An if-else statement executes its rst code block if a

condition is true, and its second code block if a condition is false, but not both. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

14.

Correct

In Greenfoot, the origin of the world coordinate

system (0,0) starts in the center of the world. True or false? Mark for Review (1) Points

True

False (*)

[Incorrect]

15.


The Greenfoot method getRandomNumber is used to

create predictable behaviour in your scenario

Mark for

Review (1) Points

True


15/102

5/26/2018


False (*)

[Incorrect] 1.

Incorrect. Refer to Section 3 Lesson 5. What type of parameter does the keyDown

method expect?

Mark for Review

(1) Points

The name of the class that will use the key.

The name of the key to press on the keyboard. (*)

The password that will protect the class.

The name of the sound le to play when the key is pressed.

[Incorrect]

2.


In Greenfoot, which class has methods that allow you

to get the status of the mouse?

Mark for Review

(1) Points

Actor

World

Scenario


16/102

5/26/2018


Greenfoot (*)

[Incorrect]

3.


You cannot record unique sounds in Greenfoot. You

can only use the sounds that are stored in the Greenfoot library. True or false?

Mark for Review

(1) Points

True

False (*)

[Incorrect]

4.


In the Greenfoot IDE, any new methods you create are

written in the class's source code. True or false?

Mark for

Review (1) Points

True (*)

False

[Correct]

5.

Correct

Which one of the following can be used to detect


 17/102

5/26/2018


when 2 actors collide?

Mark for Review

(1) Points

isTouching() (*)

isContact()

hasCollided()

isCollision()

[Correct] 6.

Correct

A collision in Greenfoot is when two actors make contact? Mark for Review

(1) Points

True (*)

False

[Correct]

7.

Correct

Which of the following answers have the correct

syntax for declaring a class variable in Greenfoot?

Mark for

Review (1) Points (Choose all correct answers)


18/102

5/26/2018


private variable-type variable-name; (*)

public variable-type variable-name; (*)

public variable-name variable type;

private variable-name, variable-type;

[Incorrect]

8.


Which operator is used to test if values are equal?


== (*)

<

>

!>

[Correct]

9.

Correct

In Greenfoot, constructors can be used to create new

instances of objects. True or false?

Mark for Review

(1) Points


19/102

5/26/2018


True (*)

False

[Correct]

Correct

10.

Writing more generic statements to handle the

creation and positioning of many objects is one Abstraction technique?

Mark for Review

(1) Points

True (*)

False

[Correct]

Correct 11.

In Java what is casting?

Mark for Review

(1) Points

When you remove an object instance.

Casting is not possible in Java.

When you reset an object instance.

When you take an Object of one particular type and turn it into another Object type. (*) https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 20/102

5/26/2018


[Incorrect]

12.


In Greenfoot modifying an actors constructor to

accept an initial speed is a form of abstraction?

Mark for

Review (1) Points

True (*)

False

[Correct]

13.

Correct

In Greenfoot, which of the following statements

could prevent an innite loop from occurring?

Mark for

Review (1) Points

i=i

i = 100 + i

i=1

i = i + 1 (*)


21/102

5/26/2018


[Incorrect]

14.


Which of the following Greenfoot logic operators

represents "not"?

Mark for Review

(1) Points

&

! (*)

&&

=

[Incorrect]

15. occur?


From your Greenfoot lessons, when do innite loops Mark for Review

(1) Points

Only in while loops.

When the loop is executed.

When the end to the code isn't established. (*)

When the end to the act method isn't established.


22/102

5/26/2018


[Incorrect]

Incorrect. Refer to Section 3 Lesson 10. 1.

Dening the scenario, and the Alice animation

to represent the scenario, is the rst step to programming your animation. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

2.

Correct

In Alice, if a procedure is declared for a clownFish

class, which classes can use the procedure?

Mark for Review

(1) Points

Any class with "Fish" in the class name

The clownFish class and Swimmer class

ClownFish class (*)

The pajamaFish class, clownFish class, and Swimmer class

[Incorrect]

3.


In Alice, when a new procedure is declared, all


 23/102

5/26/2018


subclasses of the superclass will inherit the procedure. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

4.

Correct

In an Alice program, which code is executed when the

Run button is clicked?

Mark for Review

(1) Points

The one-shot procedures selected in the Scene editor.

The code entered in myFirstMethod in the Code editor. (*)

The code entered in myMethod in the Code editor.

The code entered in the class's procedure in the procedures tab.

[Incorrect]

5. false?


The say procedure in Alice plays an audio le. True or Mark for Review

(1) Points


24/102

5/26/2018


True

False (*)

[Incorrect] 6.


The Alice move procedure contains which arguments?

Mark for Review (1) Points (Choose all correct answers)

Object

Direction (*)

Text

Amount (*)

[Incorrect]

7.


Which Alice control statement executes a set of

procedures simultaneously?

Mark for Review

(1) Points

While

Together https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 25/102

5/26/2018


Do together (*)

Do in order

[Incorrect]

8.


Which of the following is an example of nesting in an

Alice program?

Mark for Review

(1) Points

Text is nested inside of a comments tile.

Five Do Together statements are nested inside of a Do In Order statement. (*)

A move procedure is nested inside of a turn procedure.

Distance, duration, and direction arguments are nested inside of a procedure.

[Incorrect]

9.


Which handle style would be used to rotate an object's

sub-part about the x, y, and z axes?

Mark for Review

(1) Points

Default https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 26/102

5/26/2018


Rotation (*)

Resize

Translation

[Incorrect]

10.


Rings will appear around a sub-part indicating how

you can reposition it. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct] 11.

Correct

How do you view the results of procedures entered in the

Alice code editor?

Mark for Review

(1) Points

View the procedures in the gallery.

Save the scene.

Select the Run button. (*)


27/102

5/26/2018


Select the Play button.

[Incorrect]

12.


In Alice, a walking motion for a bipedal object can be

achieved without the Do Together control statement. True or false?

Mark for Review

(1) Points

True

False (*)

[Incorrect]

13.


In Alice, when two objects are synchronized and

move together, this means that one object is:

Mark for

Review (1) Points

A vehicle of another (*)

An instance of another

A class of another

An object of another


28/102

5/26/2018


[Correct]

14.

Correct

In Alice, when using the getDistanceTo function what

menu option would you use to subtract a set value from the distance?

Mark for Review

(1) Points

Random

Math (*)

Whole to decimal number

Custom DecimalNumber

[Incorrect]

15.


From your Alice lessons, built-in functions provide

precise property details for the following areas:

Mark for

Review (1) Points

Proximity and size.

Proximity and point of view.

Proximity, size, spatial relation, and point of view. (*)


29/102

5/26/2018


Distance to and nesting.

[Incorrect] 1.

Incorrect. Refer to Section 2 Lesson 7. In the Greenfoot IDE, an instance's position is on

the x and y coordinates. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

2.

Correct



Mark for Review

(1) Points

Asterisks **

Parnetheses ( )

Square brackets [ ]


[Incorrect]



 30/102

5/26/2018


3.

In Greenfoot, the instance has a source code editor.

True or false?

Mark for Review

(1) Points

True

False (*)

[Incorrect]

4.




Mark for Review

(1) Points

True (*)

False

[Correct]

5.

Correct

In Greenfoot, which of the following methods display

an object's orientation?

Mark for Review



31/102

5/26/2018


int getRotation() (*)

void move()

void turn()

int getX() (*)

[Incorrect] 6.


From your Greenfoot lessons, where do you review a

class's inherited methods?

Mark for Review

(1) Points

Act method

Inspector

If-statement

Documentation (*)

[Incorrect]

7.


From your Greenfoot lessons, which of the following is

not a step to creating a new subclass?

Mark for Review

(1) Points

Click New subclass... https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 32/102

5/26/2018


Name the class.

Program the class to move forward. (*)

Right-click on a superclass.

Select an image for the class.

[Incorrect]

8.


An object is an instance of a class. True or false?


True (*)

False

[Correct]

9.

Correct

Which of the following demonstrates a Greenfoot

subclass/superclass relationship?

Mark for Review

(1) Points

A dog is a subclass of the cat superclass.


33/102

5/26/2018


A computer is a subclass of a video game superclass.

A rose is a subclass of the ower superclass. (*)

A single person is a superclass of the human subclass.

[Incorrect]

10.


A subclass has what kind of relationship to a

superclass?

Mark for Review

(1) Points

"is-by"

"for-what"

"a-is"

"is-a" (*)

[Incorrect] 11.


From your Greenfoot lessons, Which of the following

statements is most correct?

Mark for Review

(1) Points

My program is complete when I add images to it.

My program is complete when I add music to it. https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 34/102

5/26/2018


My program is complete when it runs and I've tested the code. (*)

My program is complete when it compiles.

[Incorrect]

12.


In Greenfoot, which keyword calls the World

superclass?

Mark for Review

(1) Points

constructor

addObject

super (*)

new

world

[Incorrect]

13.


From your Greenfoot lessons, which axes dene an

object's position in a world?

Mark for Review

(1) Points


35/102

5/26/2018


(Choose all correct answers)

x (*)

w

y (*)

z

[Incorrect]

14.


Which keyword indicates that Greenfoot needs to

create a new object?

Mark for Review

(1) Points

newClass

newObject

addObject

new (*)

[Incorrect]

15.


The Greenfoot method getRandomNumber is used to


 36/102

5/26/2018


create predictable behaviour in your scenario

Mark for

Review (1) Points

True

False (*)

[Incorrect] 1.


From your Greenfoot lessons, to save space in the act

method, you can write an entirely new method below it, called a _____________.

Mark for Review

(1) Points

Code method

Dened method (*)

World method

Class method

Instance method

[Incorrect]

2.


In Greenfoot, dened methods must be used

immediately. True or false?

Mark for Review


 37/102

5/26/2018


True

False (*)

[Incorrect]

3.


Which actor method is used to detect a simple

collision?

Mark for Review

(1) Points

isTouching() (*)

hasCollided()

isInContactWith()

hasTouched()

isCollision()

[Correct]

4.

Correct

In Greenfoot, what types of values cannot be stored in

a local variable?

Mark for Review

(1) Points


38/102

5/26/2018


World name

Objects

Class name

Method (*)

Integers

[Incorrect]

5.


Which of the following is an example of string

concatenation?

Mark for Review

(1) Points

Instead of entering ".png" after each image le name, add && ".png" after the imageName value in the programming statement.

Instead of entering ".png" after each image le name, add + ".png" after the imageName value in the programming statement. (*)

Instead of entering ".png" after each image le name, add ".png" after the imageName value in the programming statement.

Instead of entering ".png" after each image le name, add = ".png" after the imageName value in the programming https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 39/102

5/26/2018


statement.

[Incorrect] 6.


In Greenfoot, string concatenation reduces the number of

redundant characters or phrases you need to type into each array. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

7.

Correct

In Greenfoot what command would you use to detect

if a mouse has been clicked on an actor?

Mark for Review

(1) Points

Greenfoot.mouseClicked(this) (*)

Greenfoot.pressed(this)

Actor.clicked(this)

Greenfoot.clicked(this)

[Correct]

Correct


40/102

5/26/2018


8.

You cannot record unique sounds in Greenfoot. You

can only use the sounds that are stored in the Greenfoot library. True or false?

Mark for Review

(1) Points

True

False (*)

[Incorrect]

9.


Greenfoot has tools to record sound. True or false?


True (*)

False

[Correct]

10.

Correct

In Greenfoot, actor constructors can be used to

create images or values and assign them to the variables. True or false?

Mark for Review

(1) Points

True (*)


41/102

5/26/2018


False

[Correct]

Correct 11.

What does the following programming

statement mean? image1 = new GreenfootImage("duke12.png");

Mark for

Review (1) Points

The variable, image1, cannot use the image le, duke12.png.

The image le, duke12.png, has just been drawn and imported into the scenario.

The image le, duke12.png, is assigned to the variable image1. (*)

Image les from 1-119 are associated with image1.

[Incorrect]

12.


Using Greenfoot, how do we change the size and

resolution of the World instance?

Mark for Review

(1) Points

Edit the methods in the class.

Delete the instance. https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 42/102

5/26/2018


Edit the values in the class's act method.

Edit the values in the constructor. (*)

[Incorrect]

13.


In Greenfoot, you will never have to cast as we only

ever use 2 classes - World and Actor.

Mark for Review

(1) Points

True

False (*)

[Incorrect]

14.


Use your Greenfoot knowldege: Abstraction occurs in

many different ways in programming. True or false?

Mark for

Review (1) Points

True (*)

False

[Correct]

Correct


 43/102

5/26/2018


15.

In Greenfoot you can only access the methods of the

current class?

Mark for Review

(1) Points

True

False (*)

[Incorrect] 1.


In Greenfoot, which of the following methods display an

object's orientation?

Mark for Review


void move()

int getRotation() (*)

int getX() (*)

void turn()

[Incorrect]

2.


In Greenfoot, only 10 methods can be written for each

class in the Code editor. True or false?

Mark for Review


 44/102

5/26/2018


True

False (*)

[Incorrect]

3.


The list below displays characteristics of a Greenfoot

world constructor, except for one. Which one should be removed?

Mark for Review

(1) Points

Has the same name as the name of the class.

Executed automatically when a new instance of the class is created.

Denes the instance's size and resolution.

Has no return type.

Has a void return type. (*)

[Incorrect]

4.


From your Greenfoot lessons, which of the following

comparison operators represents "greater than"?

Mark for

Review https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 45/102

5/26/2018


(1) Points

<

==

> (*)

!=

[Incorrect]

5.


Which of the following comparison symbols

represents equals?

Mark for Review

(1) Points

= = (*)

!=

<

>

[Correct]

Correct 6.

In Greenfoot, you can use comparison operators

to compare a variable to a random number. True or false? https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 46/102

5/26/2018



True (*)

False

[Correct]

7.

Correct

In Greenfoot, the turn method expects what type of

information in its parameters?

Mark for Review

(1) Points

Integer of steps to move forward

Degrees to turn (*)

Parameter void

String statement

True or false response

[Incorrect]

8.




Mark for Review


 47/102

5/26/2018


Parnetheses ( )

Square brackets [ ]


Asterisks **

[Incorrect]

9.


In Greenfoot, the move method expects what type of


Mark for Review

(1) Points

Integer of steps to move forward (*)

Degrees to turn


String statement

[Correct]

10.

Correct


possible when associating an image le with an instance? https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 48/102

5/26/2018



Add a video (*)

Import an image

Draw an image


[Correct] 11.

Correct

When designing a game in Greenfoot, it helps to dene

the actions that will take place in a textual storyboard. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

12.

Correct


superclass?

Mark for Review

(1) Points

"a-is"


49/102

5/26/2018


"is-by"

"is-a" (*)

"for-what"

[Incorrect]

13.


In Greenfoot, after a subclass is created and

compiled, you cannot edit the subclass's source code. True or false?

Mark for Review

(1) Points

True

False (*)

[Incorrect]

14.


From your Greenfoot lessons, the reset button resets

the scenario back to its initial position. True or false?

Mark


True (*)

False


50/102

5/26/2018


[Correct]

15.

Correct

In Greenfoot, after a subclass is created, what has to

occur before instances can be added to the scenario?

Mark


Creation of an instance

Editing of source code

Compilation (*)

Creation of source code

[Incorrect] 1.


In Greenfoot, which method body correctly adds an

instance of the World to a scenario, with size x = 300 y = 300 and a resolution of 2 pixels per cell?

Mark for Review

(1) Points

super(300,300,2); (*)

Super(300,300,2);

world(300, 300, 2);

super(2,300,300); https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 51/102

5/26/2018


[Correct]

2.

Correct

In Greenfoot, what is the purpose of the variable type?


Denes what kind of data to store in the variable. (*)

Denes which class the variable is associated with.

Denes the instance that the variable is associated with.

Denes the access specier used with the variable.

[Correct]

3.

Correct

What does the following programming statement

mean? image1 = new GreenfootImage("duke12.png");

Mark for

Review (1) Points

The image le, duke12.png, has just been drawn and imported into the scenario.

The image le, duke12.png, is assigned to the variable image1. (*) https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 52/102

5/26/2018


The variable, image1, cannot use the image le, duke12.png.

Image les from 1-119 are associated with image1.

[Incorrect]

4.


In Greenfoot, what types of values cannot be stored in

a local variable?

Mark for Review

(1) Points

Method (*)

Class name

World name

Objects

Integers

[Correct]

5. loop?

Correct

Which of the following is not a component of a while Mark for Review

(1) Points


53/102

5/26/2018


while keyword

if statement (*)

Control operator

Loop variable

Local variable

[Incorrect] 6.


From your Greenfoot lessons, what types of values cannot

be stored in a local variable?

Mark for Review


Integers

method (*)

Objects

Class name

World name

[Incorrect]



 54/102

5/26/2018


7.

From your Greenfoot lessons, how do you call a

dened method?

Mark for Review

(1) Points

Write the method in the instance.

Call the method from the act method. (*)

Write the method in the World superclass.

Write the method in the documentation.

Write the method in the Actor class.

[Incorrect]

8.


Which one of the following can be used to detect

when 2 actors collide?

Mark for Review

(1) Points

isTouching() (*)

hasCollided()

isCollision()

isContact() https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 55/102

5/26/2018


[Correct]

9.

Correct

Use your Greenfoot knowledge to answer the

question. One reason to write a dened method in a class is to make it easier to read. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

10.

Correct

What type of parameter does the Greenfoot

playSound method expect?

Mark for Review

(1) Points

name of the class (as String)

name of an integer (as int)

name of a keyboard key (as String)

name of a sound le (as String) (*)

[Incorrect]



 56/102

5/26/2018

11.


In Greenfoot, the sound le must be saved in the scenario

and written in the source code for it to play. True or false? Mark for Review (1) Points

True (*)

False

[Correct]

12.

Correct

In Greenfoot, which method would you use to obtain

input from the user?

Mark for Review

(1) Points

getText()

ask() (*)

getInput()

input()

[Incorrect]

13.


Use your Greenfoot knowldege: If an Actor class Fly

has a variable dened to store the current speed, which of the following statements would successfully add a Fly and dene the current speed as 2?

Mark for Review


 57/102

5/26/2018


(1) Points

addObject (new Fly(), 150, 150);

addObject (new Fly(2, 90), 150, 150);

addObject (new Fly(), 2, 150, 150);

addObject (new Fly(2), 150, 150); (*)

[Incorrect]

14.


From your Greenfoot lessons, which one of the

following is an example of when an abstraction technique is used?

Mark for Review

(1) Points

Adding a property to a Class

Adding a property to an instance

Passing a paramater in a constructor to set an initial speed. (*)

Initialising a variable

[Incorrect]



58/102

5/26/2018


15. class?

In Greenfoot, you can cast an Actor class to a World Mark for Review

(1) Points

True

False (*)

[Incorrect] 1.


From your Greenfoot lessons, a scenario is a game or

simulation implemented in Greenfoot. True or false?

Mark for

Review (1) Points

True (*)

False

[Correct]

2.

Correct

Which of the following Java syntax is used to correctly

create a Bee subclass?

Mark for Review

(1) Points

private class extends Bee

public class Bee extends World


59/102

5/26/2018


private class extends Actor

private Bee extends World

public class Bee extends Animal (*)

[Incorrect]

3.



superclass?

Mark for Review

(1) Points

"is-a" (*)

"is-by"

"a-is"

"for-what"

[Correct]

4.

Correct



Mark for Review

(1) Points



60/102

5/26/2018





[Correct]

5.

Correct

From your Greenfoot lessons, what are the ways that

you can view a class's methods?

Mark for Review


In the Greenfoot gallery

In the scenario

By right-clicking on an instance (*)

In the class's documentation (*)

[Incorrect] 6.


The list below provides actions you can perform in the

Greenfoot code editor except one. Which one should be removed?

Mark for Review

(1) Points


61/102

5/26/2018


Write and edit source code.

Review the online Java Library documentation. (*)

Write and edit comments.

Write source code to tell the class how to act in the scenario.

[Incorrect]

7.


When a program is tested once and it works then

testing is complete.

Mark for Review

(1) Points

True

False (*)

[Incorrect]

8.




Mark for Review

(1) Points

True (*)


62/102

5/26/2018


False

[Correct]

9.

Correct



Mark for Review

(1) Points

Asterisks **

Parnetheses ( )

Square brackets [ ]


[Incorrect]

10.


In Greenfoot, the instance has a source code editor.

True or false?

Mark for Review

(1) Points

True

False (*)

[Incorrect]



 63/102

5/26/2018


11.



Import an image

Draw an image

Add a video (*)


[Incorrect]

12.


Which of the following comparison operators

represents "greater than or equal"?

Mark for Review

(1) Points

!=

>= (*)

>

==

[Incorrect]



 64/102

5/26/2018


13.

The list below displays characteristics of a Greenfoot

world constructor, except for one. Which one should be removed?

Mark for Review

(1) Points

Has no return type.

Has a void return type. (*)

Denes the instance's size and resolution.

Has the same name as the name of the class.

Executed automatically when a new instance of the class is created.

[Incorrect]

14.


In Greenfoot, a semicolon is not necessary at the end

of a method that uses dot notation. True or false?

Mark for

Review (1) Points

True

False (*)


65/102

5/26/2018


[Incorrect]

15.


From your Greenfoot lessons, which axes dene an

object's position in a world?

Mark for Review


y (*)

z

w

x (*)

[Incorrect] 1.


In Greenfoot, constructors can be used to create new

instances of objects. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

2.

Correct

Which Greenfoot control operator is used to test if two

values are equal?

Mark for Review


 66/102

5/26/2018


(1) Points

!= operator

== operator (*)

>= operator

= operator

[Incorrect]

3.


From your Greenfoot lessons, what is the parameter of

the following constructor that creates a new image, and designates it to the Actor class? setImage (new GreenfootImage("Bee01.png"));

Mark for

Review (1) Points

GreenfootImage

setImage

new

Bee01.png (*)


67/102

5/26/2018


[Incorrect]

4.


In Greenfoot, the sound le must be saved in the

scenario and written in the source code for it to play. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

5.

Correct

In Greenfoot, which class has methods that allow you

to get the status of the mouse?

Mark for Review

(1) Points

Actor

World

Scenario

Greenfoot (*)

[Incorrect] 6.


Greenfoot has tools to record sound. True or false?

Mark

for Review (1) Points https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 68/102

5/26/2018


True (*)

False

[Correct]

7.

Correct

From your Greenfoot lessons, what types of values

cannot be stored in a local variable?

Mark for Review


World name

Objects

Class name

method (*)

Integers

[Incorrect]

8. do?


In the Greenfoot IDE, what does the AND operator (&&) Mark for Review


 69/102

5/26/2018


Compares two boolean variables or expressions and returns a result that is true if either of its operands are true.

Compares two boolean values and returns a boolean value which is true if either one of the operands is true.

Compares two boolean values, and returns a boolean value which is true if and only if both of its operands are true. (*)

Compares two boolean values, and returns a boolean value which is true if and only if one of its operands are true.

[Incorrect]

9.


Which of the following Greenfoot logic operators

represents "not"?

Mark for Review

(1) Points

=

! (*)

&&

&

[Incorrect]



 70/102

5/26/2018


10.

From your Greenfoot lessons, abstraction techniques

can only be used once in a class's source code. True or false? Mark for Review (1) Points

True

False (*)

[Incorrect] 11.


Writing more generic statements to handle the creation

and positioning of many objects is one Abstraction technique? Mark for Review (1) Points

True (*)

False

[Correct]

12.

Correct


Mark for Review

(1) Points

Casting is when we remove an object from the world

Casting is when we want to tell the java compiler that a class we are accessing is really another type of class (*) https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 71/102

5/26/2018


Casting is when we reset the state of an instance.

Casting is when we change the coordinates of an actor

[Incorrect]

13.


Dened methods are methods that are only created

by the Greenfoot development team?

Mark for Review

(1) Points

True

False (*)

[Incorrect]

14.


In Greenfoot, which of the following statement is true

about Dened Methods?

Mark for Review

(1) Points

A dened method is automatically executed once created.

A dened method is only relevant to the Greenfoot Development team.

A dened method must be called by your source code, normally in the Act method. (*) https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 72/102

5/26/2018


A dened method only relates to the World class.

[Incorrect]

15.


In reference to Greenfoot, if the following method

was dened in a superclass, public void turnAtEdge(){ ... } all subclasses of the superclass will inherit the method. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct] 1.

Correct

From your Greenfoot lessons, a problem statement denes

the purpose for your game. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

Correct


 73/102

5/26/2018


2.

From your Greenfoot lessons, what are the ways that

you can view a class's methods?

Mark for Review


In the Greenfoot gallery

In the scenario

In the class's documentation (*)

By right-clicking on an instance (*)

[Incorrect]

3.


From your Greenfoot lessons, where do you review a

class's inherited methods?

Mark for Review

(1) Points

Act method

Documentation (*)

Inspector

If-statement


74/102

5/26/2018


[Incorrect]

4.


In Greenfoot, which of the following is the correct

notation for calling a method for an instance of a class?

Mark


Method-name.object-name(parameters);

object-name.method-name(parameters); (*)

Method-name.object-name;

class-name.method-name(parameters);

[Incorrect]

5.



represents equals?

Mark for Review

(1) Points

<

= = (*)

>


75/102

5/26/2018


!=

[Incorrect] 6.

Incorrect. Refer to Section 3 Lesson 5. Read the following method signature. Using your

Greenfoot experience, what does this method do? public static int getRandomNumber (int limit)

Mark for

Review (1) Points

Returns a random number less than 10.

Returns a random coordinate position in the world.

Returns a random number for instances in the animal class only.

Returns a random number between zero and the parameter limit. (*)

[Incorrect]

7.


From your Greenfoot lessons, which type of

constructor can be used to automate creation of Actor instances?

Mark for Review

(1) Points

Animal


76/102

5/26/2018


Vector

World (*)

Actor

[Incorrect]

8.


In Greenfoot, a subclass is created by right-clicking on

a superclass. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

9.

Correct



Mark for Review

(1) Points





77/102

5/26/2018



[Incorrect]

10.




Mark for Review

(1) Points

True

False (*)

[Incorrect] 11.


An object is an instance of a class. True or false?

Mark


True (*)

False

[Correct]

12.

Correct

In Greenfoot, the move method expects what type of


Mark for Review

(1) Points


78/102

5/26/2018


Integer of steps to move forward (*)


Degrees to turn

String statement

[Correct]

13.

Correct

In the Greenfoot IDE, an instance's position is on the

x and y coordinates. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

14.

Correct


Mark


Syntax

Field (*) https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 79/102

5/26/2018


Class

Method

Instance

[Incorrect]

15.




Mark for Review

(1) Points

True (*)

False

[Correct] 1.

Correct

In Greenfoot, you can cast an Actor class to a World class? Mark for Review

(1) Points

True

False (*)


80/102

5/26/2018


[Incorrect]

2.




True

False (*)

[Incorrect]

3.


In Greenfoot you can only access the methods of the

current class?

Mark for Review

(1) Points

True

False (*)

[Incorrect]

4. game?


Which method is used to play sound in your Greenfoot Mark for Review

(1) Points

playSound method (*) https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 81/102

5/26/2018


getSound method

importSound method

ndSound method

[Correct]

5.

Correct

From your Greenfoot lessons, the isKeyDown method

is located in which class?

Mark for Review

(1) Points

Greenfoot (*)

World

GreenfootImage

Actor

[Correct] 6.

Correct

In Greenfoot, what type of parameter does the isKeyDown

method expect?

Mark for Review

(1) Points

Boolean


82/102

5/26/2018


String (*)

Integer

Method

[Incorrect]

7.


From your Greenfoot lessons, to save space in the act

method, you can write an entirely new method below it, called a _____________. ___________ __.

Mark for Review

(1) Points

Class method

Code method

World method

Instance method

Dened method (*)

[Incorrect]

8.


In Greenfoot, a way to have all subclasses of a

superclass inherit a method is by adding the method to the https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 83/102

5/26/2018


superclass. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

9.

Correct

To execute a method in your Greenfoot game, where is

it called from?

Mark for Review

(1) Points

The gallery

The actor class

The act method (*)

The world

[Incorrect]

10.


In the Greenfoot IDE, what symbols indicate that the

variable is an array?

Mark for Review

(1) Points

Colon : https://dssanjaya.blogspot.co.id/2017/12/kunci-jawaban-all-quiz-oracle-academy_32.html

 84/102

5/26/2018


Semicolon ;

Square brackets [ ] (*)

Curly brackets { }

[Incorrect] 11.


Which of the following is not a component of a while

loop?

Mark for Review

(1) Points

if statement (*)

Loop variable

Local variable

Control operator

while keyword

[Correct]

12.

Correct

In Greenfoot, what happens if the end to a while loop

isn't established?

Mark for Review

(1) Points


85/102

5/26/2018


The code will keep executing and will never stop. (*)

The code will prompt you to enter a loop counter.

The code will execute once and then stop, due to controls in Greenfoot.

The code will not execute.

[Correct]

13.

Correct

From your Greenfoot lessons, what is the parameter

of the following constructor that creates a new image, and designates it to the Actor class? setImage (new GreenfootImage("Bee01.png"));

Mark for

Review (1) Points

Bee01.png (*)

setImage

new

GreenfootImage

[Correct]

Correct


 86/102

5/26/2018


14.

Which operator is used to test if values are equal?


== (*)

!>

>

<

[Correct]

15.

Correct

In Greenfoot, we typically use the act method in the

class to automatically create the Actor instances when the world is initialized. True or false?

Mark for Review

(1) Points

True

False (*)

[Incorrect] 1.


In a Greenfoot if-else statement, if the condition is true, the

if-statement is executed, and then the else-statement is executed. True or false?

Mark for Review


 87/102

5/26/2018


True

False (*)

[Incorrect]

2.


An if-else statement executes its rst code block if a

condition is true, and its second code block if a condition is false, but not both. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct]

3.

Correct

When a Greenfoot code segment is executed in an if-

statement, each line of code is executed in sequential order. True or false?

Mark for Review

(1) Points

True (*)

False


88/102

5/26/2018


[Correct]

4.

Correct


represents equals?

Mark for Review

(1) Points

= = (*)

>

<

!=

[Correct]

5.

Correct

In Greenfoot, the Run button repeatedly executes all of

the programming statements in the class's act method in sequential order until the pause button is clicked. True or false? Mark for Review (1) Points

True (*)

False

[Correct]

Correct 6.



 89/102

5/26/2018



Mark for Review

(1) Points

True

False (*)

[Incorrect]

7.


In Greenfoot, which of the following are execution

controls?

Mark for Review


Move

Act (*)

Speed (*)

Turn

Run (*)

[Incorrect]



90/102

5/26/2018


8.

Which of the following are examples of default

superclasses that are present in a new Greenfoot scenario? Mark for Review (1) Points (Choose all correct answers)

Cat

Dog

Parrot

World (*)

Actor (*)

[Incorrect]

9.


Which of the following is an incorrectly written

programming statement?

Mark for Review

(1) Points

turn(25);

move(): (*)

move(2);


91/102

5/26/2018


turn(2);

[Incorrect]

10.





Import an image

Add a video (*)

Draw an image

[Incorrect] 11.


An instance variable can be saved and accessed later,

even if the instance no longer exists. True or false?

Mark for

Review (1) Points

True

False (*)

[Incorrect]



 92/102

5/26/2018


12.


Mark


Syntax

Class

Method

Field (*)

Instance

[Incorrect]

13.


Using the Greenfoot IDE, only ve instances can be

added to a scenario. True or false?

Mark for Review

(1) Points

True

False (*)

[Incorrect]



93/102

5/26/2018


14.

An if-statement requires which type of information

returned from the condition?

Mark for Review

(1) Points

True or false (*)

Method

Action

Integer

[Correct]

15.

Correct

From your Greenfoot lessons, source code is written

in the Code editor. True or false?

Mark for Review

(1) Points

True (*)

False

[Correct] 1.

Correct

From your Greenfoot lessons, the isKeyDown method is

located in which class?

Mark for Review

(1) Points

Actor


94/102

5/26/2018


Greenfoot (*)

GreenfootImage

World

[Incorrect]

2.


In Greenfoot you can interact with the scenario using a

mouse.

Mark for Review

(1) Points

True (*)

False

[Correct]

3.

Correct

In Greenfoot, you can only interact with the scenario

using a keyboard.

Mark for Review

(1) Points

True

False (*)


95/102

5/26/2018


[Incorrect]

4. world?


Which keyword is used to add an actor to a Greenfoot Mark for Review

(1) Points

addObject (*)

new

add

super

[Correct]

5.

Correct

Using the Greenfoot IDE, when is a constructor

automatically executed?

Mark for Review

(1) Points

When a new instance of the class is created. (*)

When the act method is executed.

When source code is written.

When a new image is added to the class.


96/102

5/26/2018


[Correct]

6.

Correct

Using Greenfoot, how do we change the size and

resolution of the World instance?

Mark for Review

(1) Points

Edit the methods in the class.

Edit the values in the constructor. (*)

Edit the values in the class's act method.

Delete the instance.

[Incorrect]

7.


Use your Greenfoot knowldege: Abstraction occurs in

many different ways in programming. True or false?

Mark for

Review (1) Points

True (*)

False

[Correct]

Correct


97/102

5/26/2018


8.


Mark for Review

(1) Points

When you take an Object of one particular type and turn it into another Object type. (*)

When you reset an object instance.

When you remove an object instance.

Casting is not possible in Java.

[Correct]

9.

Correct



True

False (*)

[Incorrect]

10.


In Greenfoot, a way to have all subclasses of a

superclass inherit a method is by adding the method to the superclass. True or false?

Mark for Review


 98/102

5/26/2018


True (*)

False

[Correct] 11.

Correct

In the Greenfoot IDE, any new methods you create are

written in the class's source code. True or false?

Mark for

Review (1) Points

True (*)

False

[Correct]

12. contact?

Correct

A collision in Greenfoot is when two actors make Mark for Review

(1) Points

True (*)

False

[Correct]

Correct


99/102

5/26/2018


13.

How would the following sentence be written in

Greenfoot source code? If Bee is turning, and the keyboard key "d" is down...

Mark for Review

(1) Points

if (!Greenfoot.isKeyDown && isTurning("d") )

if (isTurning && Greenfoot.isKeyDown("d") ) (*)

if (!isTurning && Greenfoot.isKeyDown("d") )

if (&&isTurning ! Greenfoot.isKeyDown("d") )

[Incorrect]

14. used?


In Greenfoot, when is a local variable most often Mark for Review

(1) Points

Within loop constructs (*)

Within the act method

Within the scenario

Within the world constructor

[Correct]

Correct


 100/102

5/26/2018


15.

In Greenfoot, what happens if the end to a while loop

isn't established?

Mark for Review

(1) Points

The code will prompt you to enter a loop counter.

The code will execute once and then stop, due to controls in Greenfoot.

The code will not execute.

The code will keep executing and will never stop. (*)

[Incorrect]

Incorrect. Refer to Section 3 Lesson 10.  GOOGLE

 FACEBOOK

 TWITTER

Kunci Jawaban All Quiz Oracle Academy Java Fundamental 2017

Kunci Jawaban All Quiz Oracle Academy Java Fundamental 2017


101/102

Kunci Jawaban All Quiz Oracle Academy Java Fundamental 2017 Part 11 - DS Sanjaya

Recommend Documents