Microsoft Visual C#
7th Edition
ISBN: 9781337102100
Author: Joyce, Farrell.
Publisher: Cengage Learning,
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 10, Problem 1E
Create 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 class’s ToString() method and returns a string that contains the name of the class (using CetType and the Letter’s data field values. Create a child class named CertifiedLetter that includes an auto-implemented property that holds a tracking number for the letter.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Static & Not Final Field: Accessed by every object, Changing
Non-Static & Final Field: Accessed by object itself, Non-Changing
Static & Final: Accessed by every object, Non-Changing
Non-Static & Not Final Field: Accessed by object itself, ChangingRead the following situation and decide how the variables should be defined.
You have a class named HeartsPlayerA round of Hearts starts with every player having 13 cardsPlayers then choose 3 cards to “trade” with a player (1st you pass left, 2nd you pass right, 3rd you pass across, 4th you keep)Players then strategically play cards in order to have the lowest scoreAt the end of the round, points are cumulatively totaled for each player.If one player’s total is greater than 100, the game ends and the player with the lowest score wins.
1. How should the following data fields be defined (with respect to final and static)?(a) playerPosition (These have values of North, South, East, or West)(b) directionOfPassing(c) totalScore…
Create a class named Person that holds the following fields: two String objectsfor the person’s first and last name and a LocalDate object for the person’sbirthdate. Create a class named Couple that contains two Person objects. Create aclass named Wedding for a wedding planner that includes the date of the wedding,the names of the Couple being married, and a String for the location. Provideconstructors for each class that accept parameters for each field, and provide getmethods for each field. Then write a program that creates two Wedding objectsand in turn passes each to a method that displays all the details. Save the files asPerson.java, Couple.java, Wedding.java, and TestWedding.java.
1. Dummy GUI Application
by Codechum Admin
A GUI Application is an application that has a user interface that the user can interact with. For this program, we will be simulating this behavior.
First, implement another class called Checkbox which implements the Clickable interface which has only one method: public void click(). The Checkbox will have the following properties:
private boolean isChecked (defaults to false upon the creation of object)
private String text
Additionally, it should have the following methods:
the implementation of the click() method
If the isChecked is currently false, this will set the isChecked to true and will then print the message "Checkbox is checked". If it is currently true, this will set the isChecked to false and will then print the message "Checkbox is unchecked". Note that the messages to be printed should have also print a new line at the end.
an override of the toString() method which returns the message: "Checkbox ({text} - Clicked…
Chapter 10 Solutions
Microsoft Visual C#
Ch. 10 - Create an application class named LetterDemo that...Ch. 10 - Prob. 2ECh. 10 - Create an application for Ninas Cookie Emporium...Ch. 10 - Prob. 5ECh. 10 - Prob. 7ECh. 10 - Create an application named TurningDemo that...Ch. 10 - Write a program named SalespersonDemo that...Ch. 10 - Each of the following files in the Chapter.10...Ch. 10 - In Chapter 9, you created a Contestant class for...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Appointment Class Requirements The appointment object shall have a required unique appointment ID string that cannot be longer than 10 characters. The appointment ID shall not be null and shall not be updatable. The appointment object shall have a required appointment Date field. The appointment Date field cannot be in the past. The appointment Date field shall not be null.Note: Use java.util.Date for the appointmentDate field and use before(new Date()) to check if the date is in the past. The appointment object shall have a required description String field that cannot be longer than 50 characters. The description field shall not be null. Appointment Service Requirements The appointment service shall be able to add appointments with a unique appointment ID. The appointment service shall be able to delete appointments per appointment ID.arrow_forwardFor your homework assignment, build a simple application for use by a local retail store. Your program should have the following classes: Item: Represents an item a customer might buy at the store. It should have two attributes: a String for the item description and a float for the price. This class should also override the __str__ method in a nicely formatted way. Customer: Represents a customer at the store. It should have three attributes: a String for the customer's name, a Boolean for the customer's preferred status, and a list of 5 indexes to hold Item objects. Include the following methods: make_purchase: accepts a String and a double as parameters to represent the name and price of an item this customer is purchasing. Create a new Item object with this info and append it to the internal list. If the customer is a preferred customer based on the Boolean attribute's value, take 10% off the total sale price. __str__: Override this method to print the customer's name and every…arrow_forwardThis has to be done in visual studio, c# windows form application (.net fromework). Question: The application should be able to do the following :• Create a class called Person which contains 4 private fields : Name(string), Surname (string),Course(string), CRNumber(int).• The class must contain 4 public properties which will be used to get and set the values of the private fields.• The class must contain a default constructer. The class must also contain an overloaded constructer which should be able to set the values of each of the private fields.• The class must contain a static ViewInfo method which will be used to display information of a queue of person objects back to the user neatly grouped underneath each other as displayed above.• Once a user clicks on the “Add Person” button then the information in the respective textboxes should be used to create a Person object (using the properties or the overloaded constructor) and add it to a queue which is of type Person. The…arrow_forward
- A field has access that is somewhere between public and private. static final Opackage Oprotectedarrow_forwarda - Create a FitnessTracker class that includes data fields for a fitness activity, the number of minutes spent participating, and the date. The class includes methods to get each field. In addition, create a default constructor that automatically sets the activity to running, the minutes to 0, and the date to January 1 of the current year. Save the file as FitnessTracker.java. Create an application that demonstrates each method works correctly, and save it as TestFitnessTracker.java. b - Create an additional overloaded constructor for the FitnessTracker class you created in Exercise 3a. This constructor receives parameters for each of the data fields and assigns them appropriately. Add any needed statements to the TestFitnessTracker application to ensure that the overloaded constructor works correctly, save it, and then test it. c - Modify the FitnessTracker class so that the default constructor calls the three-parameter constructor. Save the class as FitnessTracker2.java. Create an…arrow_forwardCreate a class named Person that holds the following fields: two String objects for the person’s first and last name and a LocalDate object for the person’s birthdate. Create a class named Couple that contains two Person objects. Create a class named Wedding for a wedding planner that includes the date of the wedding, the Couple being married, and a String for the location. Provide constructors for each class that accept parameters for each field, and provide get methods for each field.arrow_forward
- Car Class Project The car classwill havethe following attributes: •year: an integer that holds the car's model year •model: a string that holds the make of the car •make: a string that holds the model of the car •speed: an integer that holds the car's current speed Your class should contain thefollowing: A docstring that briefly describes the class and lists the attributes. The docstring will serve as the documentation for your class. •A constructor (__init__ method) that takes the car's year model and make as optional arguments. The constructor will set the value of the speed attribute to 0.•An __str__ method that returns the car's year model and makein a string. •To test your class, create acar object and use the print function to verify that the constructor and __str__ methodsare working correctly. •An accessor method which returns the value stored in the speed instance variable. Call this method getSpeed(). •A modifier method called accelerate() which adds 5 to the speed variable…arrow_forwardCar Class Project The car classwill havethe following attributes: •year: an integer that holds the car's model year •model: a string that holds the make of the car •make: a string that holds the model of the car •speed: an integer that holds the car's current speed Your class should contain thefollowing: A docstring that briefly describes the class and lists the attributes. The docstring will serve as the documentation for your class. •A constructor (__init__ method) that takes the car's year model and make as optional arguments. The constructor will set the value of the speed attribute to 0.•An __str__ method that returns the car's year model and makein a string. •To test your class, create acar object and use the print function to verify that the constructor and __str__ methodsare working correctly. •An accessor method which returns the value stored in the speed instance variable. Call this method getSpeed(). •A modifier method called accelerate() which adds 5 to the speed variable…arrow_forwardWrite a class named Employee that has the following fields: name: The name field is a String object that holds the employee's name. idNumber: The idNumber is an integer variable that holds the employee's ID number. department: The department field is a String object that holds the name of the department where the employee works. position: The position field is a String object that holds the employee's job title. Write mutator methods that store values in these fields and accessor methods that return the values in these fields. Once you have written the class, write a separate program that creates three Employee objects to hold the following data. Name ID Number Azah Samsudin Mira Kamal Che Yah Sam Department Computer Science Biomedical Language Position Programmer Researcher Lecturer 11011 35125 80001 The program should store the data in the three objects and then display the data for each employee on the screen.arrow_forward
- Develop a Visual C# .NET solution that provides a login authentication service. This solution will have a class library component and two application components contained within the same solution. The LoginAuthenticator Class Create a class library project named LibLoginAuthenticator that contains a class named LoginAuthenticator. The LoginAuthenticator class must support the following features: •The class defines a public string read/write property named Username which gets/sets the Username for the authenticator. • The class defines a public string property named Password which sets the Password for the authenticator. The get part should be private. •The constructor for the class should set the initial values of Username and Password to null. • The class defines a public method named Authenticate with no parameters which returns a bool? (nullable bool) value. • If either Username or Password is null, the method should return null to indicate that not all fields were provided. • If…arrow_forwardPlease Format in a C++ format for Windows Visual Studio 2017 Please Write a class named Student that has the following variables: name - a string that hold the student's name idNumber - an integer that holds the student's id number major - a string that holds the students major The class should have the following constructors: A constructor that accepts the following values as arguments and assigns them to the appropriate member variables: student name, ID number, and major. A constructor that accepts the following values as arguments and assigns them to the appropriate member variables: student name and ID number. The major should be assigned an empty string (" "). A constructor that assigns empty strings (" ") to the name and major member variables and 0 to the idNumber member variable.arrow_forwardThe xxx_Student class:– Name - the name consists of the First and Last name separated by a space.– Student Id – a whole number automatically assigned in the student class– Student id numbers start at 100. The numbers are assigned using a static variable in the Student class• Include all instance variables• Getters and setters for instance variables• A static variable used to assign the student id starting at 100• A toString method which returns a String containing the student name and id in the format below:Student: John Jones ID: 101 The xxx_Course classA Course has the following information (modify your Course class):– A name– An Array of Students which contains an entry for each Student enrolled in the course (allow for up to 10 students)– An integer variable which indicates the number of students currently enrolled in the course. Write the constructor below which does the following:Course (String name)Sets courseName to nameCreates the students array of size 10Sets number of…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
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
Introduction to Classes and Objects - Part 1 (Data Structures & Algorithms #3); Author: CS Dojo;https://www.youtube.com/watch?v=8yjkWGRlUmY;License: Standard YouTube License, CC-BY