Create a class named Square that contains data fields for height, width, and surfaceArea, and a method named computeSurfaceArea(). Create a child class named Cube. Cube contains an additional data field named depth, and a computeSurfaceArea() method that overrides the parent method. Write an application that instantiates a Square object and a Cube object and displays the surface areas of the objects. Save the files as Cube.java, Square.java, and DemoSquare.java.
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- When considering the ArrayBag class and the ArraySortedBag class, which of the following is TRUE? The ArraySortedBag class is the parent of the ArrayBag class The ArrayBag class is a subclass of ArraySortedBag The ArrayBag class is the child class of ArraySortedBag The ArraySortedBag class is a subclass of ArrayBag How is creating a subclass of an existing class different from copying the code from the existing class to a new file? Delete all the methods that don't have to change You don't need an __init__ method The name of the subclass is in parentheses of the class header No methods need be created or modifiedCreate an application class named LetterDemo that instantiates objects of two classes named Letter and CertifiedLetter and that demonstrates all their methods. The classes are used by a company to keep track of letters they mail to clients. The Letter class includes auto-implemented properties for the name of the recipient and the date mailed. Also, include a ToString() method that overrides the Object classs ToString() method and returns a string that contains the name of the class (using CetType and the Letters data field values. Create a child class named CertifiedLetter that includes an auto-implemented property that holds a tracking number for the letter.Open the Palace Solution.sln file contained in the VB2017\Chap10\Palace Solution folder. Use Windows to copy the Rectangle.vb file from the VB2017\Chap10 folder to the Palace Project folder. Then, use the Add Existing Item option on the Project menu to add the file to the project. Modify the Rectangle class to use Double variables rather than Integer variables. Change the name of the GetArea method to GetAreaSqFt. Add another method to the class. Use Get AreaSqYds as the method’s name. The method should calculate and return the area of a rectangle in square yards. The application’s Calculate button should calculate and display the number of square yards of carpeting needed to carpet a rectangular floor. Code the btnCalc_Click procedure. Display the number of yards with one decimal place. Save the solution and then start and test the application.
- You are required to create above frame, Create a class HelloFrame and extend it from JFrame Inside HelloFrame declare 3 textfields for taking string input for name, email and number variables 1 textarea to write a message. Create a button “Submit” which should submit the form. Now create a public constructor for HelloFrame inside which You should call super("Hello Java"); //used to set title of the frame setSize(700, 400); //set length and width of the frame create a label which should display the method "Contact US Panel" similarly create labels for showing name, email, number. Add textfields and button to JFrame. Run the code and make sure the output should be as above frame.You are required to create above frame, Create a class HelloFrame and extend it from JFrame Inside HelloFrame declare 3 textfields for taking string input for name, email and number variables 1 textarea to write a message. Create a button “Submit” which should submit the form. Now create a public constructor for HelloFrame inside which You should call super("Hello Java"); //used to set title of the frame setSize(700, 400); //set length and width of the frame create a label which should display the "Contact US Panel" similarly create labels for showing name, email, number. Add textfields and button to JFrame. Bind and Action Listener with the button which reads the data and from the text fields and save it to File name ‘data.txt’ also show a dialog box showing “Submit button clicked, Data saved successfully”. Run the code and make sure the output should be as above frame.Study the 2 files provided with this question RectangleClassUMLandCode.pdf and RectangleDemo.java . Notice that the file RectangleClassUML&Code.pdf contains both the UML design & code for the class Rectangle. The code for class Rectangle serves as a "blueprint" for creating Rectangle objects. The second file, "RectangleDemo" is an application program (contains a method main) that uses the Rectangle class to create Rectangle objects. Now complete the followign activity: Part 1: Create a new Java project, name it Chap6-Pet and click Finish and OK. Next, create a new class, name it Pet, and DO NOT check the first check box under "Which method stubs would you like to create?" and click Finish. Study the file PetClassUML.pdf. Code the file "Pet.java" according to this design. Save the file. Part 2: Next, for the same project, create another class, name it PetDemo, and check the first checkbox under "Which method stubs would you like to create?" and click Finish. This…
- In Blue j 1. Create a new class named Scene.2. Add a main method to the Scene class that simply creates a new Scene object like this:Scene scene = new Scene();This should be all that is in main at this point.3. Add a public method named animate that has no parameter variables and returns nothing. Leavethe body blank for now. (Hint: What should the return type of animate be?)4. Add two House fields to Scene. Call them house1 and house2.5. Add a sun field that can reference a Circle object.6. Add a moon field that can reference a Circle object.7. Create a no-arg constructor for the Scene class that creates the two House objects shown in the imagebelow. Use the methods you created in the preceding activity to position and color the houses exactlyas in the image. We will adopt the convention that house1 refers to the left house and house2 refersto the right house. 8. Add a sun to the upper-left corner of the scene. (Create the sun object and set the color, position, andsize in the no-arg…Create a class called FinalGrade that is used to represent the points obtained in the letter grade of CSC 110 by different students. The FinalGrade class should include three pieces of information as instance variables—studentName (type String), studentID (type String), and pointsObtained (type int). Your class should have a constructor that initializes the three instance variables. Provide a set and a get method for each and every instance variable. In addition, provide a method named computeLetterGrade that returns the letter grade obtained by the student taking the pointsObtained as an argument. For the grading policy refer to CSC 110 grading scheme specified in syllabus. Write a test application named FinalGradeDriver that creates at least 3 different objects of class FinalGrade and test all the methods of class FinalGrade. Sample Output Student Name : Homer SimpsonStudent ID : S123456Points Obtained : 99Letter Grade : A Student Name : Marge SimpsonStudent ID : S234567Points…This is the question - The developers of a free online game named Sugar Smash have asked you to develop a class named SugarSmashPlayer that holds data about a single player. The class contains the following fields: idNumber - the player’s ID number (of type int), name - the player's screen name (of type String), scores - an array of integers that stores the highest score achieved in each of 10 game levels Include get and set methods for each field. The get method for scores should require the game level to retrieve the score for. The set method for scores should require two parameters—one that represents the score achieved and one that represents the game level to be retrieved or assigned. Display an error message if the user attempts to assign or retrieve a score from a level that is out of range for the array of scores. Additionally, no level except the first one should be set unless the user has earned at least 100 points at each previous level. If a user tries to set a score for a…
- This is the question - The developers of a free online game named Sugar Smash have asked you to develop a class named SugarSmashPlayer that holds data about a single player. The class contains the following fields: idNumber - the player’s ID number (of type int) name - the player's screen name (of type String) scores - an array of integers that stores the highest score achieved in each of 10 game levels Include get and set methods for each field. The get method for scores should require the game level to retrieve the score for. The set method for scores should require two parameters—one that represents the score achieved and one that represents the game level to be retrieved or assigned. Display an error message if the user attempts to assign or retrieve a score from a level that is out of range for the array of scores. Additionally, no level except the first one should be set unless the user has earned at least 100 points at each previous level. If a user tries to set a score for a…This is the question - The developers of a free online game named Sugar Smash have asked you to develop a class named SugarSmashPlayer that holds data about a single player. The class contains the following fields: idNumber - the player’s ID number (of type int) name - the player's screen name (of type String) scores - an array of integers that stores the highest score achieved in each of 10 game levels Include get and set methods for each field. The get method for scores should require the game level to retrieve the score for. The set method for scores should require two parameters—one that represents the score achieved and one that represents the game level to be retrieved or assigned. Display an error message if the user attempts to assign or retrieve a score from a level that is out of range for the array of scores. Additionally, no level except the first one should be set unless the user has earned at least 100 points at each previous level. If a user tries to set a score for a…This is the question - The developers of a free online game named Sugar Smash have asked you to develop a class named SugarSmashPlayer that holds data about a single player. The class contains the following fields: idNumber - the player’s ID number (of type int) name - the player's screen name (of type String) scores - an array of integers that stores the highest score achieved in each of 10 game levels Include get and set methods for each field. The get method for scores should require the game level to retrieve the score for. The set method for scores should require two parameters—one that represents the score achieved and one that represents the game level to be retrieved or assigned. Display an error message if the user attempts to assign or retrieve a score from a level that is out of range for the array of scores. Additionally, no level except the first one should be set unless the user has earned at least 100 points at each previous level. If a user tries to set a score for a…