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https://quiz.blesdaily.com/full-answer-oracle-academy-java-fundamentals-midterm-exam-and-final/ http://deniace.blogspot.ba/2017/01/oracle-java-fundamentals-section-2-quiz.html Friday, 13 January 2017

Section 2 Oracle Java Fundamentals Quiz Section 2 - Quiz 1 L1-L7 (Answer all questions in this section) 1.

In Alice, which control statement is used to invoke simultaneous movement Do In Order Count Do Together (*) While Variable 2. In Alice, a computer program requires functions to tell it how to perform the procedure. True or false? True False (*) 3. Manually manipulating an Alice object with your cursor is a way to precisely position an object. True or false? True False (*) 4. Only acting objects have one-shot procedures. True or false? True False (*) 5. In Alice, where are objects added and positioned in the scene? The template The Scene editor (*) The Code editor The gallery 6. Before you can begin to develop the animation storyboard, what must be defined? The debugging process The control statements The code The scenario (*) 7. In Alice, which of the following are benefits of separating out motions into their own procedures? (Choose all correct answers) It makes the scene easier to view. It can allow subclasses of a superclass to use a procedure. (*) It simplifies code and makes it easier to read. (*) It makes the animation easier to run. It allows many objects of a class to use the same procedure. (*) 8. Which Alice tool is used to demonstrate the process flow of an animation? World Pie chart Textual storyboard Visual storyboard Flowchart (*) 9. Which Alice execution task corresponds with the following storyboard statement? Cat turns to face mouse.

10.

11.

mouse turnTo cat this.cat turnToFace this.mouse (*) this.mouse turnToFace this.cat cat TurnTo mouse From your Alice lessons, which control statement executes instructions simultaneously? Do in order Variable Do together (*) Count From your Alice lessons, built-in functions provide precise property details for the following areas: Proximity and point of view. Distance to and nesting. Proximity and size. Proximity, size, spatial relation, and point of view. (*)

12. From your Alice lessons, which programming instruction represents the following movement: A turtle moves forward half the distance to the flower. this.Turtle move Forward this.Turtle getDistanceTo this.Flower * 2 this.Turtle move Forward this.Turtle getDistanceTo this.Flower / 1.0 this.Turtle move Forward this.Turtle getDistanceTo this.Flower / 0.5 this.Turtle move Forward this.Turtle getDistanceTo this.Flower / 2.0 (*) 13. What is the purpose of a function in Alice? To position the object in the Scene editor. To save the project. To compute and answer a question about an object. (*) To define how the object should execute a task. 14. The comments you enter in Alice should describe the sequence of actions that take place in the code segment. True or false? True (*) False 15. Which of the following is a reason why you might disable programming statements in your Alice code? To disable the entire program. To make an object move forward. To make an object turn and move simultaneously. To help isolate portions of code during testing. (*) 1. From your Alice lessons, where on an object do an object's axes intersect? At the object's center point (*) At the object's head At the object's chest At the object's bottom 2. Only acting objects have one-shot procedures. True or false? True False (*) 3. In Alice, which of the following is not a control statement? Count Move (*) While Do In Order 4. In Alice, a computer program requires functions to tell it how to perform the procedure. True or false? True False (*) 5. When is an instance created in Alice? After the scenario is saved. After the folder is selected in the gallery. After the class icon is dragged into the scene. (*) After the code is created. 6. Which of the following is an example of nesting in an Alice program? 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. Text is nested inside of a comments tile. 7. Which Alice control statement executes a set of procedures simultaneously? Do in order While Together Do together (*) 8. Programming comments do not affect the functionality of your Alice animation. True or false? True (*) False 9. What is the first step to entering comments in an Alice program? Select the instance from the instance menu. Drag and drop the comments tile below a code segment. Type comments that describe the sequence of actions in the code segment. Drag and drop the comments tile above a code segment. (*) 10. In Alice the Functions tab will display the pre-defined functions for the selected instance. True or false? True (*) False 11. In Alice, what function would you use to get a wholenumber from the user? getIntegerFromUser (*) getBooleanFromUser getStringFromUser getDoubleFromUser

12.

In Alice, there is no way of reordering the function list in the function tab. True or false? True False (*) 13. Defining the scenario, and the Alice animation to represent the scenario, is the first step to programming your animation. True or false? True (*) False 14. In Alice, declaring a new procedure to shorten code and make it easier to read is a procedural abstraction technique. True or false? True (*) False 15. In Alice, what are the forms of a scenario? (Choose all correct answers) A problem to solve. (*) A task to perform. (*) A person to help. A system to start. A section of code to write. 1. Before you can begin to develop the animation storyboard, what must be defined? The debugging process The control statements The scenario (*) The code 2. In Alice, declaring a new procedure to shorten code and make it easier to read is a procedural abstraction technique. True or false? True (*) False 3. A scenario gives the Alice animation a purpose. True or false? True (*) False 4. From your Alice lessons, which programming instruction represents the following movement: A cat moves forward double (or twice) the distance to the tree. this.Cat move Forward this.Cat getDistanceTo this.tree / 2.0 this.Cat move Forward this.Cat getDistanceTo this.tree - 2.0 this.Cat move Forward this.Cat getDistanceTo this.tree * 2.0 (*) this.Cat move forward this.Cat getDistanceTo this.tree + 2.0 5. In Alice, where you would you get access to the specific joints of an object that are not available through the object drop down menu? scene editor procedures tab functions tab (*) code editor 6. Only acting objects have one-shot procedures. True or false? True False (*) 7. From your Alice lessons, where on an object do an object's axes intersect? At the object's bottom At the object's chest At the object's head At the object's center point (*) 8. Which Alice execution task corresponds with the following storyboard statement? Cat turns to face mouse. this.cat turnToFace this.mouse (*) mouse turnTo cat cat TurnTo mouse this.mouse turnToFace this.cat 9. In Alice, the computer specifies the low and high range values for the range of numbers from which to pull a randomized number. True or false? True False (*) 10. When something is broken or doesn't work as intended in a software program, it is referred to as a _________? Bug (*) Error Code Debug

11. Debugging and testing is the process of running the animation one time, and adjusting the control statements, procedures, and arguments.

12.

True False (*) In Alice the Functions tab will display the pre-defined functions for the selected instance. True or false?

13.

True (*) False What is the first step to programming an object to turn left in Alice? Select the object to program from the instance menu. (*) Drag the turn procedure into the Code editor. Select the duration for the object to turn. Select the distance to turn.

14. In Alice, the procedures' arguments allow the programmer to adjust the object, motion, distance amount, and time duration. True or false?

15.

True (*) False Which of the following actions would require a control statement to control animation timing? (Choose all correct answers) A biped object walking. (*) A rock object turning. A bird flying. (*) A fish swimming. (*)

1.

Define the value of the variable LapCount based on the following math calculation: LapCount + 10 = 15 2 15 4 5 (*) 10

2.

Which of the following is not an Alice variable value type? Whole Number Decimal Number Color Function (*)

3.

In Alice, what are the forms of a scenario? (Choose all correct answers) A problem to solve. (*) A person to help. A task to perform. (*) A section of code to write. A system to start.

4. From your Alice lessons, animations should be tested by the programmer before they are considered complete. True or false? True (*) False 5. From your Alice lessons, when testing your animation, you should test that comments were added below each sequence of instructions in the code. True or false? True False (*) 6.

In Java, a function is a method that must return a value. True or false? True False (*)

7.

Which of the following does not describe methods? A subprogram that acts on data and often returns a value. A set of code that is referred to by name. Is associated with an instance variable. (*) Can be called at any point in a program simply by utilizing its name.

8.

In Alice, we can avoid object collision using what? Downloading the Alice 3 collision detector app. Using object detection. Using math operators. (*) Slowing movements down.

9.

Alice uses built-in math operators; they are: Add and subtract Multiply and divide All of the above (*) None of the above

10.

In Alice, what tab would you choose to start a new animation with a pre-populated world? Recent Blank Slate Starters (*) My Projects

11.

In Alice, when is the sceneActivationListener executed? When the user clicks on on object At the end of the animation At the beginning of the animation (*) When an object appears on screen

12.

A data type defines the type of procedures a variable can store. True or false? True False (*)

13. 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. True or false? True (*) False 14.

In Alice, the use of conditional control structures allows what two types of loops? (Choose all correct answers) switch together conditional (*) infinite

15.

In Alice, which one of the following is not a pre-defined control structure? do in order do together do while (*) while

1. In Java, which symbol is used to assign one value to another? < = (*) > //

2. What is the output produced by the following code?

j is 10 j is 5 k is 5 j is 5 k is 5 (*) j is 10 k is 10 j is 15 k is 15 3. When you want specific code to be executed only if certain conditions are met, what type of Java construct would you use? if (*) array while loop boolean 4. If you need to repeat a group of Java statements many times, which Java construct should you use? (Choose all correct answers) while loop (*) do while loop (*) repeat...until if 5. In Alice it is not possible to transfer a class from one animation to another. True or false? True False (*) 6. You want an event to happen when an object collides with another object, which category of event handler would you choose? Keyboard Mouse Scene Activation/time Position/Orientation (*) 7. Which of the following is not an Alice variable value type? Color Decimal Number Function (*) Whole Number 8. The initializer of a variable with a TextString value type could be (select all that apply): (Choose all correct answers) "Greetings" (*) "Howdy" (*) "4" (*) None of the above.

9. Which of the following WHILE control structures commands the fish to move forward repeatedly 0.5 meters at a time, but stop if it collides with the shark?

(*) 10. In Alice, we use the WHILE control statement to implement the conditional loop. True or false? True (*) False 11. In Alice, which of the following programming statements moves the butterfly forward, double the distance to the tree? this.Butterfly move forward {this.Butterfly getDistanceTo this.Tree / 2} this.Butterfly move backward {this.Butterfly getDistanceTo this.Tree * 2} this.Butterfly move forward {this.Butterfly getDistanceTo this.Tree * 2} (*) this.Butterfly move backward {this.Butterfly getDistanceTo this.Tree / 2} 12. An example of an expression is: If or Where 3*3=9 (*) Move forward 1 meter "I feel happy." 13. From your Alice lessons, a textual storyboard provides a detailed, ordered list of the actions each object performs in each scene of the animation. True or false? True (*) False 14. From your Alice lessons, when testing your animation, you should test that comments were added below each sequence of instructions in the code. True or false? True False (*) 15. What can be used as a guideline to ensure your Alice animation fulfills animation principles? An animation checklist (*) Other programmers The Internet A close friend 1.

2.

3.

An event is any action initiated by the user that is designed to influence the programﾒs execution during play. True (*) False In Alice, what tab would you choose to start a new animation with a pre-populated world? Recent Starters (*) My Projects Blank Slate Which of the following is not a valid arithmetic operator in Java? + / * % $ (*) None of the above

4. 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. True or false? True (*) False 5.

In Java, a function is a method that must return a value. True or false? True False (*)

6.

The list below contains method descriptions. All are correct except which one? (Choose all correct answers) Is associated with an instance variable. A subprogram that acts on data and often returns a value. (*) A set of code that is referred to by name. (*) Can be called at any point in a program simply by utilizing its name.

7.

In Alice, we can avoid object collision using what? Downloading the Alice 3 collision detector app. Using math operators. (*) Using object detection. Slowing movements down.

8.

Alice uses built-in math operators; they are: Add and subtract Multiply and divide All of the above (*) None of the above

9.

10.

6.

Define the value of the variable LapCount based on the following math calculation: LapCount + 10 = 15 2 5 (*) 15 4 10 The initializer of a variable with a TextString value type could be (select all that apply): (Choose all correct answers) "Greetings" (*) "Howdy" (*) "4" (*) None of the above. The list below contains method descriptions. All are correct except which one? (Choose all correct answers) Is associated with an instance variable. A subprogram that acts on data and often returns a value. (*) A set of code that is referred to by name. (*) Can be called at any point in a program simply by utilizing its name.

7.

8.

In Alice, we can avoid object collision using what? Downloading the Alice 3 collision detector app. Using math operators. (*) Using object detection. Slowing movements down. Alice uses built-in math operators; they are: Add and subtract Multiply and divide All of the above (*) None of the above

9.

Define the value of the variable LapCount based on the following math calculation: LapCount + 10 = 15 2 5 (*) 15 4 10

10.

The initializer of a variable with a TextString value type could be (select all that apply): (Choose all correct answers) "Greetings" (*) "Howdy" (*) "4" (*) None of the above.

15.

The Alice If control structure requires the false statement to be populated. True or false? True False (*)

Section 2 Quiz 1 - L1-L7 (Answer all questions in this section) 1. How do you create a programming instruction in Alice? Click and drag the desired programming instruction into the Scene editor. Click and drag the desired programming instruction into the Procedures tab. Click and drag the desired programming instruction into the myFirstMethod tab. (*) Click and drag the desired programming instruction into the Functions tab.

Correct 2. Which of the following is not an example of a one-shot procedure? Turn Move Roll Spin (*)

Correct 3. In Alice, where are objects added and positioned in the scene? The template The gallery The Scene editor (*) The Code editor

Correct 4. In Alice, the computer specifies the low and high range values for the range of numbers from which to pull a randomized number. True or false?

True False (*)

Incorrect. Refer to Section 2 Lesson 4. 5. Which of the following is an example of nesting in an Alice program? A move procedure is nested inside of a turn procedure. Five Do Together statements are nested inside of a Do In Order statement. (*) Distance, duration, and direction arguments are nested inside of a procedure. Text is nested inside of a comments tile.

Correct

6. From your Alice lessons, which programming instruction represents the following movement: A turtle moves forward half the distance to the flower. this.Turtle move Forward this.Turtle getDistanceTo this.Flower * 2 this.Turtle move Forward this.Turtle getDistanceTo this.Flower / 2.0 (*) this.Turtle move Forward this.Turtle getDistanceTo this.Flower / 1.0 this.Turtle move Forward this.Turtle getDistanceTo this.Flower / 0.5

Incorrect. Refer to Section 2 Lesson 7. 7. In Alice, you can use a function to get the current color of the object. True or false? True (*) False

Incorrect. Refer to Section 2 Lesson 7. 8. In Alice, new procedures are declared in the Scene editor. True or false? True False (*)

Correct 9. Defining the scenario, and the Alice animation to represent the scenario, is the first step to programming your animation. True or false? True (*) False

Correct

10. In Alice, you could identify when new procedures need to be declared by reviewing the textual storyboard for the animation. True or false? True (*) False

Incorrect. Refer to Section 2 Lesson 5. 11. To add a procedure to myFirstMethod, right-click on the procedure you wish to add and select the Add button. True or false? True False (*)

Incorrect. Refer to Section 2 Lesson 3. 12. The say procedure in Alice plays an audio file. True or false? True False (*)

Incorrect. Refer to Section 2 Lesson 3. 13. When you disable a programming instruction, it is still executed when you run the Alice animation. True or false? True False (*)

Correct 14. In Alice, a walking motion for a bipedal object can be achieved without the Do Together control statement. True or false? True False (*)

Incorrect. Refer to Section 2 Lesson 6. 15. In Alice, the setVehicle procedure will associate one object to another. True or false? True (*) False

Correct

Section 2 Quiz 1 - L1-L7 (Answer all questions in this section) 1. In Alice, there is a limit of 10 objects per scene. True or false? True False (*) Correct 2. From your Alice lessons, where on an object do an object's axes intersect? At the object's center point (*) At the object's head At the object's bottom At the object's chest Incorrect. Refer to Section 2 Lesson 2. 3. Which of the following would a clown fish object in Alice inherit from its class? Fins Two eyes Procedures Functions All of the above (*) Incorrect. Refer to Section 2 Lesson 5. 4. A textual storyboard helps the reader understand the actions that will take place during the animation. True or false? True (*) False Correct 5. In Alice, you examine code where a bird moves its wings forward and backward while moving forward simultaneously across the scene. You notice that this set of procedures are repeated in the Code editor ten times to achieve this motion. How could procedural abstraction be used to make the code simpler and easier to read? (Choose all correct answers)

Use the Count control statement to execute the forward motion of the body and up and down motion of the wings 10 times. (*) Use the Scene editor to position the wings so that they are up as the body moves forward. Do not make any changes to the code. Declare a separate "fly" procedure for the body moving forward and wings moving up and down. (*) Incorrect. Refer to Section 2 Lesson 5.

6. To access the Alice Code editor from the Scene editor, which button do you click? Code Editor Access Code Editor Code Edit Code (*) Incorrect. Refer to Section 2 Lesson 3. 7. Debugging and testing is the process of running the animation one time, and adjusting the control statements, procedures, and arguments. True False (*) Correct 8. Which of the following is a reason why you might disable programming statements in your Alice code? To make an object turn and move simultaneously. To make an object move forward. To help isolate portions of code during testing. (*)

To disable the entire program. Incorrect. Refer to Section 2 Lesson 3. 9. From your Alice lessons, which programming instruction represents the following movement: A person moves forward the distance to the table, minus the depth of the person. this.Person move Forward this.Person getDistanceTo this.Table + this.Person getDepth this.Person move Forward this.Person getDistanceTo this.Table - this.Table getDepth this.Table move Forward this.Person getDistanceTo this.Table - this.Table getDepth this.Person move Forward this.Person getDistanceTo this.Table - this.Person getDepth (*) Incorrect. Refer to Section 2 Lesson 7. 10. In Alice, functions ask questions about an object. True or false? True False (*)

11.In Alice, the setVehicle procedure will associate one object to another. True or false? True (*) False Correct 12. In Alice, different programming is not required for different objects, because all objects move the same way. True or false? True False (*) Incorrect. Refer to Section 2 Lesson 6. 13. Debugging is the process of finding bugs in a software program. True or false? True (*)

False Incorrect. Refer to Section 2 Lesson 1. 14. Which Alice execution task corresponds with the following storyboard statement?

Cat turns to face mouse. this.mouse turnToFace this.cat cat TurnTo mouse this.cat turnToFace this.mouse (*) mouse turnTo cat Incorrect. Refer to Section 2 Lesson 4. 15. From your Alice lessons, the Do In Order control statement is also referred to by what other name? Incorrect. Refer to Section 2 Lesson 4. Sequence control Sequential control (*) Order control Control order

Section 2 Quiz 1 - L1-L7 (Answer all questions in this section) 1. In Alice, functions ask questions about an object. True or false?

Mark for Review (1) Points

True False (*)

Correct 2. 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

Custom DecimalNumber Random Whole to decimal number Math (*)

Correct

3. In Alice, a computer program requires functions to tell it how to perform the procedure. True or false?

Mark for Review (1) Points

True False (*)

Correct 4. In Alice, the procedures' arguments allow the programmer to adjust the object, motion, distance amount, and time duration. True or false?

Mark for Review (1) Points

True (*) False

Incorrect. Refer to Section 2 Lesson 6. 5. Which of the following are ways to open an existing Alice project file after launching Alice?

Mark for Review (1) Points

(Choose all correct answers) Double-click on the project file name in the folder it is stored in on your computer. Click and drag the file from your computer into Alice 3. Browse for the project using the File System tab. (*) Select the project from the My Projects tab. (*)

Correct 6. All objects in Alice have three dimensional coordinates on which axes?

Mark for Review (1) Points

(Choose all correct answers) x (*) y (*) z (*) w All of the above

Correct

7. When something is broken or doesn't work as intended in a software program, it is referred to as a _________?

Mark for Review (1) Points

Debug Code Error Bug (*)

Correct 8. Breaking down a problem or process into smaller parts makes it easier to manage. True or false?

Mark for Review (1) Points

True (*) False

Correct 9. In Alice, which of the following situations could benefit from declaring a new procedure?

Mark for Review (1) Points

(Choose all correct answers) A single motion, such as walking, takes up a lot of room in myFirstMethod. (*) An object does not have a default procedure for a motion, such as swimming. (*) Multiple objects need to use a motion, such as bunnies hopping. (*) An object needs to move forward, then move up 10 meters. An object needs to say three statements.

Incorrect. Refer to Section 2 Lesson 5. 10. In Alice, objects inherit the characteristics of their:

Mark for Review (1) Points

Class (*) Project Program Code

Correct 11. Which of the following is an example

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of nesting in an Alice program? Text is nested inside of a comments tile. Distance, duration, and direction arguments are nested inside of a procedure. A move procedure is nested inside of a turn procedure. Five Do Together statements are nested inside of a Do In Order statement. (*) Correct 12. Which Alice control statement executes a set of procedures simultaneously?

Mark for Review (1) Points

Do in order Together Do together (*) While

Correct 13. Which of the following instructions turns the clown fish left 5 revolutions?

Mark for Review (1) Points

this.clownFish turn Left 0.5 this.clownFish turn Left 5.0 (*) this.clownFish turn Left 5 this.Fish turn Left 5

Correct 14. In Alice, each class has a set of pre-defined procedures and functions. True or false?

Mark for Review (1) Points

True (*) False

Correct 15. To add a procedure to myFirstMethod, right-click on the procedure you wish to add and select the Add button. True or false?

Mark for Review (1) Points

True

False (*)

Correct

1. To access the Alice Code editor from the Scene editor, which button do you click?

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Edit Code (*) Code Editor Code Access Code Editor

Correct 2. What is the purpose of a function in Alice?

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To compute and answer a question about an object. (*) To position the object in the Scene editor. To define how the object should execute a task. To save the project.

Correct 3. 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 myMethod in the Code editor. The code entered in the class's procedure in the procedures tab. The code entered in myFirstMethod in the Code editor. (*)

Correct

4. When something is broken or doesn't work as intended in a software program, it is referred to as a _________?

Mark for Review (1) Points

Debug Bug (*) Code Error

Correct 5. Functions answer questions about an object, such as its height, width, depth and even distance to another object. True or false?

Mark for Review (1) Points

True (*) False

Correct

6. From your Alice lessons, which programming instruction represents the following movement: A turtle moves forward half the distance to the flower.

Mark for Review (1) Points

this.Turtle move Forward this.Turtle getDistanceTo this.Flower * 2 this.Turtle move Forward this.Turtle getDistanceTo this.Flower / 0.5 this.Turtle move Forward this.Turtle getDistanceTo this.Flower / 1.0 this.Turtle move Forward this.Turtle getDistanceTo this.Flower / 2.0 (*)

Correct 7. In Alice, which of the following arguments could be replaced with a random number?

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(Choose all correct answers)

Distance (*) Direction Procedure name Object name Duration (*)

Correct 8. From your Alice lessons, which of the following are reasons why random numbers would be used by a computer?

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(Choose all correct answers) For simulation. (*) For security. (*) For opening a project. For creating procedures.

Correct 9. In Alice, there is a limit of 10 objects per scene. True or false?

Mark for Review (1) Points

True False (*)

Correct 10. Manually manipulating an Alice object with your cursor is a way to precisely position an object. True or false?

Mark for Review (1) Points

True False (*)

Correct

11. In Alice, when two objects are synchronized and move together, this means that one object is:

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A class of another

An instance of another An object of another A vehicle of another (*)

Correct 12. Which of the following actions would require a control statement to control animation timing?

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(Choose all correct answers) A bird flying. (*) A fish swimming. (*) A rock object turning. A biped object walking. (*)

Correct 13. A scenario gives the Alice animation a purpose. True or false?

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True (*) False

Correct 14. From your Alice lessons, inheritance means that the superclass inherits its traits from the subclass. True or false?

Mark for Review (1) Points

True False (*)

Incorrect. Refer to Section 2 Lesson 5. 15. In Alice, when a new procedure is declared, all subclasses of the superclass will inherit the procedure. True or false?

Mark for Review (1) Points

True (*) False

Correct