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From a different class, if the class you are programming does not possess the method. True or false? Mark for Review (1) Points True (*) False Correct 8. In Greenfoot you can use comparison operators to compare a variable to a random number. True or false? Mark for Review (1) Points True (*) False Correct 9. Which of the following type of audience should you ask to play your Greenfoot game during the testing phase? Mark for Review (1) Points Primary Programmer Testing Target (*) Incorrect. Refer to Section 3 Lesson 4. 10. The list below displays components of the Greenfoot source code editor except one. Which one should be removed? Mark for Review (1) Points Comments Documentation Method body Class description Instance creator (*) Incorrect. Refer to Section 3 Lesson 3. 11. From your Greenfoot lessons, where do you review a class's inherited methods? Mark for Review (1) Points Documentation (*) Act method If-statement Inspector Correct 12. From your Greenfoot lessons, which of the following is not a step to creating a new subclass? Mark for Review (1) Points Name the class. Click New subclass... Right-click on a superclass. Select an image for the class. Program the class to move forward. (*) Incorrect. Refer to Section 3 Lesson 1. 13. A subclass has what kind of relationship to a superclass? Mark for Review (1) Points "for-what" "is-a" (*) "is-by" "a-is" Correct 14. An object is an instance of a class. True or false? Mark for Review (1) Points True (*) False Correct 15. In Greenfoot, a subclass is a specialization of a superclass. True or false? Mark for Review (1) Points True (*) False Correct 1. An array is an object that holds multiple methods. True or false? Mark for Review (1) Points True False (*) Incorrect. Refer to Section 3 Lesson 10. 2. From your Greenfoot lessons, which of the following logic operators represents "and"? Mark for Review (1) Points & = ! && (*) Incorrect. Refer to Section 3 Lesson 10. 3. In a Greenfoot loop constructor, which component is a counter that controls how many times the statement is executed? Mark for Review (1) Points Condition Loop variable (*) While loop Local loop Incorrect. Refer to Section 3 Lesson 10. 4. Which class holds the method that ends a Greenfoot game? Mark for Review (1) Points Actor Class GreenfootImage Greenfoot (*) Incorrect. Refer to Section 3 Lesson 8. 5. In Greenfoot the showText() method belongs to which class? Mark for Review (1) Points Actor World (*) There is no such method. Greenfoot Incorrect. Refer to Section 3 Lesson 8. 6. In Greenfoot, an ifstatement is used to alternate between displaying two images in an instance. True or false? Mark for Review (1) Points True (*) False Correct 7. From your Greenfoot lessons, which one of the following is an example of when an abstraction technique is used? Mark for Review (1) Points Passing a paramater in a constructor to set an initial speed. (*) Adding a

Property to a Class Initialising a variable Adding a property to an instance Incorrect. Refer to Section 3 Lesson 9. 8. In Greenfoot you can only access the methods of the current class? Mark for Review (1) Points True False (*) Incorrect. Refer to Section 3 Lesson 9. 9. In Java what is casting? Mark for Review (1) Points Casting is when we remove an object from the world Casting is when we reset the state of an instance. Casting is when we want to tell the java compiler that a class we are accessing is really another type of class (*) Casting is when we change the coordinates of an actor Incorrect. Refer to Section 3 Lesson 9. 10. In Greenfoot, the sound file 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 11. In Greenfoot, which method checks if a key on the keyboard has been pressed? Mark for Review (1) Points isKeyDown method (*) keyClick method isKeyUp method keyPress method Correct 12. 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. Refer to Section 3 Lesson 7. 13. 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 (1) Points True (*) False Correct 14. From your Greenfoot lessons, how do you call a defined method? Mark for Review (1) Points Write the method in the instance. Write the method in the Actor class. Call the method from the act method. (*) Write the method in the documentation. Write the method in the World superclass. Incorrect. Refer to Section 3 Lesson 6. 15. In Greenfoot, defined methods must be used immediately. True or false? Mark for Review (1) Points True False (*) Incorrect. Refer to Section 3 Lesson 6.

Alice IF control structure requires the false statement to be populated. True or false? Mark for Review (1) Points True False (*) Incorrect. Refer to Section 2 Lesson 8. 9. In Alice, we use the WHILE control statement to implement the conditional loop. True or false? Mark for Review (1) Points True (*) False Correct 10. 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 Collision (*) Position/Orientation Mouse Keyboard Correct 11.In Alice it is not possible to transfer a class from one animati on to another . True or false? Mark for Review (1) Points True False (*) Incorrect. Refer to Section 2 Lesson 11. 12. Which of the following statements about what happens when the following code is executed is false? Mark for Review (1) Points The message "Printing Some Text" will be printed until loopVal is no longer less than 5. The variable loopVal is initialized to 0. The condition loopVal Mark for Review (1) Points Methods whose return type is not void are required to include a return statement specifying what to return. Java does not permit nesting one method definition within another method's definition. Classes must be defined directly within a method definition. (*) The order in which methods are listed within the class is not important. Incorrect. Refer to Section 2 Lesson 14. 14. A typical application uses various values and these values continuously change while the program is running. True or false? Mark for Review (1) Points True (*) False Correct 15. 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? Mark for Review (1) Points True (*) False Correct 1. 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. 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. Refer to Section 3 Lesson 2. 3. In Greenfoot, the instance has a source code editor. True or false? Mark for Review (1) Points True False (*) Incorrect. Refer to Section 3 Lesson 2. 4. Using the Greenfoot IDE, only five instances can be added to a scenario. True or false? Mark for Review (1) Points True False (*) Incorrect. Refer to Section 3 Lesson 2. 5. In Greenfoot, which keyword calls the World superclass? Mark for Review (1) Points constructor new addObject super (*) world Incorrect. Refer to Section 3 Lesson 5. 6. The Greenfoot method getRandomNumber is used to create predictable behaviour in your scenario Mark for Review (1) Points True False (*) Incorrect. Refer to Section 3 Lesson 5. 7. From your Greenfoot lessons, dot notation allows you to use a method

Skip to contentAccessibility PolicySearch Oracle.comQUICK LINKSOracle Cloud InfrastructureOracle Fusion Cloud ApplicationsOracle DatabaseDownload JavaCareers at OracleCountryCloud AccountSign in to CloudSign Up for Free Cloud TierOracle AccountSign-InCreate an AccountHelpSign OutContact SalesMenuMenuJavaTechnical DetailsYoung Developer - Visual Programming Software ToolsYoung Developer - Visual Programming Software ToolsYoung people are learning programming languages from the earliest ages and up. These tools and web sites teach young people how to program using the Java programming language, and Java-based languages developed for ease of use.Young DeveloperNew Technologies and Communities!Scratch, a simple programming language with drag-and-drop interfaceNo Programming Experience – Simplest tools for ages 5 - 15Download ScratchSelf pace tutorials Lesson PlansGreenfoot, a visual 2D educational software tool with a code editor to create games and simulations.No Programming Experience – Less simple for ages 13 - 25Download Greenfoot Get Started Video Tutorials Resources for Teachers Wombat Scenario, Part. 1Wombat Scenario, Part 2 -->Alice, a 3D educational software tool with a drag-and-drop interface to create animations.No Programming Experience - Less simple for ages 8 - 22Download AliceWhat is Alice? Download Alice 3 Beta Alice 3 TutorialsTeacher Resources Storytelling AliceBlueJ, a professional Java development tool with a simplified interface for beginners.A Little Experience - Ages 15 - 25Download BlueJThe BlueJ Tutorial Lesson: Object-Oriented Programming ConceptsAbout the Java TechnologyBlueroom, a Teacher CommunityNetBeans, a fully featured Java integrated development environmentSome Experience - Ages 15 - 25Download the NetBeans IDEThe Java TutorialNetBeans Teaching ResourcesJava Technologies in Desktop ApplicationsJava Technologies for Web ApplicationsDocumentation, Training & Support build a desktop application with NetBeans Tools you can use to learn the Java Programming language.Online Alice and Greenfoot training is availableYoung Developers Learning Path Other Resources FreshBrain is a platform that aims to let teenagers explore different technology areas, create projects and share projects. Freshbrain Developer -->This site provides kids with an interactive, self-paced tutorial to the Java programming language.Freshbrain DeveloperDr. Java is a lightweight development environment for writing Java programs and interactively evaluating Java codeFreshbrain Developer