Concept explainers
Create an application named SalesTransactionDemo that declares several SalesTransaction objects and displays their values and their sum. The SalesTransaction class contains fields for a salesperson name, sales amount, and commission and a readonly field that stores the commission rate. Include three constructors for the class. One constructor accepts values for the name, sales amount, and rate, and when the sales value is set, the constructor computes the commission as sales value times commission rate. The second constructor accepts a name and sales amount, but sets the commission rate to 0. The third constructor accepts a name and sets all the other fields to 0. An overloaded + operator adds the sales values for two SalesTransaction objects.
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Chapter 9 Solutions
Microsoft Visual C#
- Create an application named CarDemo that declares at least two Car objects and demonstrates how they can be incremented using an overloaded ++ operator. Create a Car class that contains a model and a value for miles per gallon. Include two overloaded constructors. One accepts parameters for the model and miles per gallon; the other accepts a model and sets the miles per gallon to 20. Overload a ++ operator that increases the miles per gallon value by 1. The CarDemo application creates at least one Car using each constructor and displays the Car values both before and after incrementation.arrow_forwardCreate a class named Pet (similar to the one discussed in this chapter), which has the following properties:• Name—The Name property holds the name of a pet.• Type—The Type property holds the type of animal that a pet is. Example values are “Dog”, “Cat”, and “Bird”.• Age—The Age property holds the pet’s age.Demonstrate the class in an application that creates an object of the class and lets the user enter the name, type, and age of his or her pet. This data should be stored in the object. Retrieve the pet’s Name, Type, and Age properties and display their values on the screen.arrow_forwardMicrosoft Visual C# 7th edition : Create an application named CarDemo that declares at least two Car objects and demonstrates how they can be incremented using an overloaded ++ operator. Create a Car class that contains the following properties: Model - The car model (as a string) Mpg The car's miles per gallon (as a double) Include two overloaded constructors. One accepts parameters for the model and miles per gallon; the other accepts a model and sets the miles per gallon to 20. Overload the ++ operator that increases the miles per gallon value by 1. The CarDemo application creates at least one Car using each constructor and displays the Car values both before and after incrementation. here is my code. Thanks for helping me. using static System.Console; class CarDemo { static void Main() { Car red = new Car("Civic", 38.50); Car blue = new Car("Corolla"); WriteLine("{0} {1}", red.Model, red.Mpg); WriteLine("{0}", blue.Model); // Write your main here. }…arrow_forward
- Create a class named Car that has the following properties: • Year—The Year property holds the car’s year model. • Make—The Make property holds the make of the car. • Speed—The Speed property holds the car’s current speed. In addition, the class should have the following constructor and other methods: • Constructor—The constructor should accept the car’s year and model and make them as arguments. These values should be assigned to the backing fields for the object’s Year and Make properties. The constructor should also assign 0 to the backing field for the Speed property. • Accelerate—The Accelerate method should add 5 to the Speed property’s backing field each time it is called. • Brake—The Brake method should subtract 5 from the Speed property’s backing field each time it is called. Demonstrate the class in an application that creates a Car object. The application’s form should have an Accelerate button that calls the Accelerate method and then displays the car’s current speed each…arrow_forwardIn c# i need to Create an application named TestSoccerPlayer that instantiates and displays a SoccerPlayer object. The SoccerPlayer class contains the following properties: Name - The player’s name ( a string) JerseyNum - The player's jersey number (an integer) Goals - Number of goals scored (an integer) Assists - Number of assists (an integer) using static System.Console; class TestSoccerPlayer { static void Main() { // Write your main here. } } class SoccerPlayer { // Write your SoccerPlayer class here. }arrow_forwardFocus on classes, objects, methods and good programming style Your task is to create a BankAccount class. Class name BankAccount Attributes _balance float _pin integer Methods init () get_pin() check pin () deposit () withdraw () get_balance () The bank account will be protected by a 4-digit pin number (i.e. between 1000 and 9999). The pin should be generated randomly when the account object is created. The initial balance should be 0. get_pin () should return the pin. check_pin (pin) should check the argument against the saved pin and return True if it matches, False if it does not. deposit (amount) should receive the amount as the argument, add the amount to the account and return the new balance. withraw (amount) should check if the amount can be withdrawn (not more than is in the account), If so, remove the argument amount from the account and return the new balance if the transaction was successful. Return False if it was not. get_balance () should return the current balance.…arrow_forward
- Design a class named StockTransaction that holds a stock symbol (typically one to four characters), stock name, and price per share. Include methods to set and get the values for each data field. Create the class diagram and write the pseudocode that defines the class. Design an application that declares two StockTransaction objects and sets and displays their values.arrow_forwardClass AssignmentResult An object that represents the result of an assignment. __init__(self, id:int, assignment: Assignment, grade: float): """ This will contain the ID of the student, the assignment that the student worked on and the grade the student received on the assignment. :param id: The ID of the student that created this Assignment result :param assignment: The Assignment that the student worked on. :param grade: A number between 0-1 representing the numerical grade the student received """ get_id(self) -> int: """ Returns the ID of the student as specified in the constructor. :return: The student's ID """ get_grade(self) -> float: """ Returns the grade as specified in the constructor. :return: The grade the student received for this assignment """ get_assignment(self) -> Assignment: """ Returns the assignment as specified in the constructor. :return: The assignment that the student worked on to…arrow_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_forward
- Portfolio Instructions: You are working for a financial advisor who creates portfolios of financial securities for his clients. A portfolio is a conglomeration of various financial assets, such as stocks and bonds, that together create a balanced collection of investments. When the financial advisor makes a purchase of securities on behalf of a client, a single transaction can include multiple shares of stock or multiple bonds. It is your job to create an object-oriented application that will allow the financial advisor to maintain the portfolios for his/her clients. You will need to create several classes to maintain this information: Security, Stock, Bond, Portfolio, and Date. The characteristics of stocks and bonds in a portfolio are shown below: Stocks: Bonds: Purchase date (Date) Purchase date (Date) Purchase price (double)…arrow_forwardClass Student __init__(self, id: int, fist_name: str, last_name: str, town:str): """ This creates a student object with the specified ID first and last name and home town. This constructor should also create data structure for holding the students grades for all of there assignments. Additionally it should create a variable that holds the student's energy level which will be a number between 0 and 1. :param id: The student's identifiaction number :param fist_name: The student's first name :param last_name: The student's last name :param town: The student's home town """ get_id(self)->int: """ Returns the ID of the student as specified in the constructor. :return: The student's ID """ get_first_name(self) -> str: """ Returns the first name of the student. :return: The student's first name """ set_first_name(self, name:str): """ Changes the student first name to the specified value of the name parameter. :param name: The value that the first name of the student will equal. """…arrow_forwardIn a Java class, the method that creates an object by using the new operator is called the ___. mutator accessor toString constructorarrow_forward
- Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENTProgramming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:Cengage
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