EBK JAVA PROGRAMMING
8th Edition
ISBN: 9781305480537
Author: FARRELL
Publisher: CENGAGE LEARNING - CONSIGNMENT
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 1, Problem 8RQ
Program Description Answer
Values in Object’s attributes are termed as “state”.
Hence, correct answer is option “A”.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
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…
Create an application named ShapesDemo that creates several objects that descend from an abstract class called GeometricFigure. Each GeometricFigure includes a height, a width, and an area.
Provide get and set accessors for each field except area; the area is computed and is read-only. Include an abstract method called ComputeArea() that computes the area of the GeometricFigure.
Next you will create three additional classes derived from the GeometricFigure class. Name these derived classes: Rectange, Square, and Triangle
Create a Rectangle is a GeometricFigure whose area is determined by multiplying width by height.
Create a Square is a Rectangle in which the width and height are the same. Provide a constructor that accepts both height and width, forcing them to be equal if they are not. Provide a second constructor that accepts just one dimension and uses it for both height and width. The Square class uses the Rectangle’s ComputeArea() method.
Create a Triangle is a GeometricFigure…
Create an application named ShapesDemo that creates several objects that descend from an abstract class called GeometricFigure. Each GeometricFigure includes a height, a width, and an area. Provide get and set accessors for each field except area; the area is computed and is read-only. Include an abstract method called ComputeArea() that computes the area of the GeometricFigure. Next you will create three additional classes derived from the GeometricFigure class. Name these derived classes: Rectange, Square, and Triangle.
Chapter 1 Solutions
EBK JAVA PROGRAMMING
Ch. 1 - Prob. 1RQCh. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Prob. 5RQCh. 1 - Prob. 6RQCh. 1 - Prob. 7RQCh. 1 - Prob. 8RQCh. 1 - Prob. 9RQCh. 1 - Prob. 10RQ
Ch. 1 - Prob. 11RQCh. 1 - Prob. 12RQCh. 1 - Prob. 13RQCh. 1 - Prob. 14RQCh. 1 - Prob. 15RQCh. 1 - Prob. 16RQCh. 1 - Prob. 17RQCh. 1 - Prob. 18RQCh. 1 - Prob. 19RQCh. 1 - Prob. 20RQCh. 1 - Prob. 1PECh. 1 - Prob. 2PECh. 1 - Prob. 3PECh. 1 - Prob. 4PECh. 1 - Prob. 5PECh. 1 - Prob. 6PECh. 1 - Prob. 7PECh. 1 - Prob. 8PECh. 1 - Prob. 9PECh. 1 - Prob. 10PECh. 1 - Prob. 11PECh. 1 - Prob. 12PECh. 1 - Prob. 1DECh. 1 - Prob. 1GZCh. 1 - Prob. 1CPCh. 1 - Prob. 2CP
Knowledge Booster
Similar questions
- Create an application named TurningDemo that creates instances of four classes: Page, Corner, Pancake, and Leaf. Create an interface named ITurnable that contains a single method named Turn The classes named Page, Corner, Pancake, and Leaf implement ITurnable. Create each classs Turn() method to display an appropriate message. For example, the pages Turn() method might display You turn a page in a book.arrow_forwardCreate 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.arrow_forwardIn this lab, you will create a programmer-defined class and then use it in a Java program. The program should create two Rectangle objects and find their area and perimeter. Instructions Make sure the class file named Rectangle.java is open. In the Rectangle class, create two private attributes named length and width. Both length and width should be data type double. Write public set methods to set the values for length and width. Write public get methods to retrieve the values for length and width. Write a public calculateArea()method and a public calculatePerimeter() method to calculate and return the area of the rectangle and the perimeter of the rectangle. Open the file named MyRectangleClassProgram.java. In the MyRectangleClassProgramclass, create two Rectangle objects named rectangle1 and rectangle2. Set the length of rectangle1 to 10.0 and the width to 5.0. Set the length of rectangle2 to 7.0 and the width to 3.0. Print the value of rectangle1’s perimeter and area, and then…arrow_forward
- Create an application named RecoveringDemo that declares objects of three types: Patient, Upholsterer, and FootballPlayer. Create an interface named IRecoverable that contains a single method named Recover(). Create the classes named Patient, Upholsterer, and FootballPlayer so that each implements IRecoverable. Create each class’s Recover() method to display an appropriate message. For example, the Patient’s Recover() method might display “I am getting better. C# Programmingarrow_forwardCreate a method named getCircleDiameter that takes a radius of double type as the parameter. The method should return the diameter of a circle. To compute the diameter of a circle, multiply the radius by 2.Create a struct named Product where its fields are code, description, and price. Create a class named Person with an instance variable named full_name. Declare one (1) constructor without a parameter and initialize the variable with a default value.Create a class named Account with an instance variable named account_number. Make this class a member of the Accounts namespace.arrow_forwardIn the project you created in previous activities. Add a class. Name it Student. That class should have student name (string), student grades (array of size 3). Create a DisplayInfo() function that displays the values of the member variables in the class. In main, create an instance of that array and fill that instance with data. Call the DisplayInfo() function from main so it prints the content of the object. A screenshot showing the code in Visual Studio and the output (on the console screen). Activity 1 code #include <iostream> using namespace stdvoid main() {cout << "Welcome to my world..." << endl;system("pause");arrow_forward
- Create an application named TestClassifiedAd that instantiates and displays at least two ClassifiedAd objects. A ClassifiedAd has fields for a Category (For example, Used Cars and Help Wanted), a number of Words, and a price. Include properties that contain get and set accessors for the category and number of words, but only a get accessor for the price. The price is calculated at nine cents per word. Note: Your output should be formatted as: The classified ad with 100 words in category Used Cars costs $9.00 The classified ad with 60 words in category Help Wanted costs $5.40 In order to prepend the $ to currency values, the program will need to use the CultureInfo.GetCultureInfo method. In order to do this, include the statement using System.Globalization; at the top of your program and format the output statements as follows: WriteLine("This is an example: {0}", value.ToString("C", CultureInfo.GetCultureInfo("en-US"))); using static System.Console; using System.Globalization; public…arrow_forwarddesign a class named Rectangle to represent a rectangle. The class contains: A method named getPerimeter() that returns the perimeter. Two double data fields named width and height that specify the width and height of the rectangle. The default values are 1 for both width and height. A no-arg constructor that creates a default rectangle. A constructor that creates a rectangle with the specified width and height. A method named getArea() that returns the area of this rectangle. design a class named Rectangle to represent a rectangle. The class contains: Two double data fields named width and height that specify the width and height of the rectangle. The default values are 1 for both width and height. A no-arg constructor that creates a default rectangle. Draw the UML diagram for the class and then implement the class. Write a test program that creates two Rectangle objects-one with width 4 and height 40 and the other with width 3.5 and height 35.9. Display the width,…arrow_forwardCreate a class called Student to represent a Student exam grades. The class has four instance variables: A String variable for the name, and three double variables to store three exams grades for the student. Write a mutator method that takes four parameters—A String and three doubles. Use these parameters to initialize the instance variables declared earlier. Write a getAverage method that calculates and returns the average of the three exam grades. Write a separate program that creates 2 Student objects to hold the following data. First Name Exam#1 Exam#2 Exam#3 Ahmed 83.0 95.5 90.0 Kareema 75.25 83.0 89.0 Output the name and average grade for each of the above students.arrow_forward
- Please answer this question properly must attach output screenshot IN PYTHON create a User class with with 2 attributes : first_name, last_name, hireDate, age, job_title . create a method named describe_user() that prints all the info for the user create a 'great_user() method that prints a personalized greeting to the user add an attribute named login_attempts to the user class from 1 above write a method called increment_login_attempts() that increments the login_attempts value by 1 write another method called reset_login_attempts () that resets the value of login_attempts to 0 Make an instance of the User class and call increment_login_attempts() several times. Print the value of login_attempts to make sure it was incremented properly. Make an instance of the User class and call reset_login_attempts(). Print the value of login_attempts to make sure it was reset to 0. Write a class called Admin that inherits from from User class you wrote above Add an attribute, privileges, that…arrow_forwardCreate an application named RecoveringDemo that declares objects of three types: Patient, Upholsterer, and FootballPlayer. Create an interface named IRecoverable that contains a single method named Recover(). Create the classes named Patient, Upholsterer, and FootballPlayer so that each implements IRecoverable. Create each class’s Recover() method to display an appropriate message. For example: The Patient’s Recover() method should display I am getting better. The Upholsterer's Recover() method should display I have new material for the couch. The FootballPlayer's Recover() method should display I picked up the ball after a fumble.arrow_forwardCreate a class Car with parameters companyName, color, maxSpeed (Not more than 150) andcategory. Use appropriate data types and access specifiers. Use default constructor to create objectsof cars. (JAVA)arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
Programming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:Cengage
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781305480537Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Programming Logic & Design Comprehensive
Computer Science
ISBN:9781337669405
Author:FARRELL
Publisher:Cengage
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781305480537
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT