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_forwardCreate 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_forward
- In 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_forwardJAVA -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_forward
- Focus 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_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_forwardPortfolio 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_forward
- Car ClassWrite a class named Car that has the following fields:• yearModel. The yearModel field is an int that holds the car’s year model.• make. The make field references a String object that holds the make of the car.• speed. The speed field is an int that 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 model and make as arguments. These values should be assigned to the object’s yearModel and make fields. The constructor should also assign 0 to the speed field.• Accessors. Appropriate accessor methods should get the values stored in an object’s yearModel, make, and speed fields.• accelerate. The accelerate method should add 5 to the speed field each time it is called.• brake. The brake method should subtract 5 from the speed field each time it is called.Demonstrate the class in a program that creates a Car object, and then calls the accelerate method five…arrow_forwardIn a Java class, the method that creates an object by using the new operator is called the ___. mutator accessor toString constructorarrow_forwardIn Java languagearrow_forward
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