In Java what is casting? Mark for Reviewġ1. In Greenfoot, when is a local variable most often used? Mark for Reviewġ0. Which of the following is not a component of a while loop? Mark for Reviewĩ. From your Greenfoot lessons, what types of values cannot be stored in a local variable? Mark for ReviewĨ. In Greenfoot, we typically use the act method in the class to automatically create the Actor instances when the world is initialized. Greenfoot Actor instances get their images from which of the following? Mark for ReviewĦ. Which Greenfoot control operator is used to test if two values are equal? Mark for Reviewĥ. Defined methods are methods that are only created by the Greenfoot development team? Mark for ReviewĤ. In reference to Greenfoot, if the following method was defined in a superclass,Īll subclasses of the superclass will inherit the method.ģ. In Greenfoot, you can use comparison operators to compare a variable to a random number. Which of the following comparison symbols represents equals? Mark for Reviewġ5.
From your Greenfoot lessons, which type of constructor can be used to automate creation of Actor instances? Mark for Reviewġ4.
Which keyword indicates that Greenfoot needs to create a new object? Mark for Review Review the online Java Library documentation.
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Write source code to tell the class how to act in the scenario. Which one should be removed? Mark for Review The list below provides actions you can perform in the Greenfoot code editor except one. From your Greenfoot lessons, which of the following methods return the current rotation of the object? Mark for Review My program is complete when I add images to it.ġ0. My program is complete when I add music to it. My program is complete when it runs and I've tested the code. From your Greenfoot lessons, Which of the following statements is most correct? Mark for Review In Greenfoot, the body of the method is located in between which of the following characters? Mark for Reviewĩ. Select an image from the Greenfoot libraryħ. In Greenfoot, which of the following options are not possible when associating an image file with an instance? Mark for Review In Greenfoot, the move method expects what type of information in its parameters? Mark for Review In Greenfoot, after a subclass is created, what has to occur before instances can be added to the scenario? Mark for Reviewĥ. 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. In Greenfoot, which of the following are execution controls? Mark for Reviewģ. A subclass has what kind of relationship to a superclass? Mark for Review We can use the Actor constructor to automatically create Actor instances when the Greenfoot world is initialized. Image files from 1-119 are associated with image1.ġ5.
The image file, duke12.png, has just been drawn and imported into the scenario. The variable, image1, cannot use the image file, duke12.png. The image file, duke12.png, is assigned to the variable image1. Image1 = new GreenfootImage("duke12.png") Mark for Review What does the following programming statement mean? Which class holds the method that ends a Greenfoot game? Mark for Reviewġ4. In Greenfoot, which method checks if a key on the keyboard has been pressed? Mark for Reviewġ2. In Greenfoot what command would you use to detect if a mouse has been clicked on an actor? Mark for Review Passing a paramater in a constructor to set an initial speed. From your Greenfoot lessons, which one of the following is an example of when an abstraction technique is used? Mark for Review When you take an Object of one particular type and turn it into another Object type. In Greenfoot modifying an actors constructor to accept an initial speed is a form of abstraction? Mark for ReviewĨ.
In Greenfoot, what types of values cannot be stored in a local variable? Mark for Reviewħ. The condition becomes false after one minute of executions.Ħ. If an end to a while loop is not established, what happens? Mark for Review Use your Greenfoot knowledge: An array object holds a single variable. To execute a method in your Greenfoot game, where is it called from? Mark for ReviewĤ. Defined methods are methods that are only created by the Greenfoot development team? Mark for Reviewģ. Which actor method is used to detect a simple collision? Mark for Review
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