es, a raise_price method that accepts a percentage as an argument to increase the price by percentage a reduce_price method that accepts a percentage as an argument to reduce the price by percentage demonstrate the class in a program to create 2 instances

es, a raise_price method that accepts a percentage as an argument to increase the price by percentage a reduce_price method that accepts a percentage as an argument to reduce the price by percentage demonstrate the class in a program to create 2 instances

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter4: More Object Concepts

Section: Chapter Questions

Problem 2PE

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Write a program named SalespersonDemo that instantiates objects using classes named Real EstateSalesperson and GirlScout. Demonstrate that each object can use a SalesSpeech() method appropriately. Also, use a MakeSale() method two or three times with each object, and display the final contents of each objects data fields. First, create an abstract class named Salesperson. Fields include first and last names; the Salesperson constructor requires both these values. Include properties for the fields. Include a method that returns a string that holds the Salespersons full nameâ€”the first and last names separated by a space. Then perform the following Create two child classes of Salesperson: Real EstateSalesperson and Girl Scout. The Real EstateSalesperson class contains fields for total value sold in dollars and total commission earned (both of which are initialized to 0), and a commission rate field required by the class constructor. The Girl Scout class includes a field to hold the number of boxes of cookies sold, which is initialized to 0. Include properties for every field. Create an interface named ISell able that contains two methods: SalesSpeech() and MakeSale(). In each Real EstateSalesperson and Girl Scout class, implement SalesSpeech() to display an appropriate one- or two-sentence sales speech that the objects of the class could use. In the Real Estatesalesperson class, implement the MakeSale() method to accept an integer dollar value for a house, add the value to the Real EstateSalespersons total value sold, and compute the total commission earned. In the Girl Scout class, implement the MakeSale() method to accept an integer representing the number of boxes of cookies sold and add it to the total field.
Create a class named Billing that includes three overloaded computeBill()methods for a photo book store.•• When computeBill() receives a single parameter, it represents the price ofone photo book ordered. Add 8% tax, and return the total due.•• When computeBill() receives two parameters, they represent the price ofa photo book and the quantity ordered. Multiply the two values, add 8% tax,and return the total due.•• When computeBill() receives three parameters, they represent the price of aphoto book, the quantity ordered, and a coupon value. Multiply the quantityand price, reduce the result by the coupon value, and then add 8% tax andreturn the total due.Write a main() method that tests all three overloaded methods. Save theapplication as Billing.java.
1. Create a class called Student, with the following attributes/variables:a. studentName (String)b. studentNumber (int)sc. regYear(long)d. faculty(String)e. department(String)2. Add the following methods in Student:a. accessors and mutators for all variablesb. toString methodi. Formulate your toString so that it only shows studentName,studentNumber and faculty3. Create a class called MyFriends, with the following attributes variables:a. studentArray(Student[])4. Add the following methods in MyFriends:a. fillArrayi. Using scanner ask how many students does the user want to inputii. Capture user input for all of his friends(Of course we are assuming all your friends would be similarUWC students, go ask around and meet new friends, alsopreferably not in the same Computer Science department … ifpossible … only if possible)b. maini. Call the fillArray methodii. Count how many Computer Science studentsiii. If half or more students are Computer Science students, thendisplay “You … need more…
IN JAVA A furniture store specializes in office furniture and sells Office Chairs, Desks and Book Shelves. Customers can buy furniture using the application of the furniture shop. Create a class Furniture having id, finishing/polish, and price provide appropriate methods for the data members provide toString method and a method Buy which simply prints “Buying A Furniture”; as type of furniture is not specified. Next create class Chairs having fabric (String), arms (Boolean), as data members this extends the functionality of Furniture class. Provide appropriate methods for data members, also provide an override method Buy which helps customers buy the chair please note the following1. Arms are optional if customers wants to have armed chair then it will add extra cost of 1000 to the original price of chair otherwise price remains same. 2. User can also change color of polish (options available brown, black and white). Price of black and brown are Rs 2,000 each whereas price of…
(The Rectangle class) Following the example of the Circle class in Section 8.2,design a class named Rectangle to represent a rectangle. The class contains:■ Two double data fields named width and height that specify the width andheight 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.■ A method named getPerimeter() that returns the perimeter.Draw the UML diagram for the class and then implement the class. Write a testprogram that creates two Rectangle objects—one with width 4 and height 40and the other with width 3.5 and height 35.9. Display the width, height, area,and perimeter of each rectangle in this order.
this is for a python class 9.12 LAB: Product class In main.py define the Product class that will manage product inventory. Product class has three attributes: a product code, the product's price, and the number count of product in inventory. Implement the following methods: A constructor with 3 parameters that sets all 3 attributes to the value in the 3 parameters set_code(self, code) - set the product code (i.e. SKU234) to parameter code get_code(self) - return the product code set_price(self, price) - set the price to parameter price get_price(self) - return the price set_count(self, count) - set the number of items in inventory to parameter count get_count(self) - return the count add_inventory(self, amt) - increase inventory by parameter amt sell_inventory(self, amt) - decrease inventory by parameter amt Ex. If a new Product object is created with code set to "Apple", price set to 0.40, and the count set to 3, the output is: Name: Apple Price: 0.40 Count: 3 Ex. If 10…
By using Java programming Write a class called ”BankAccount” that has the following variables:• A variable with type String and its name ”acoountHolderName”.• A variable with type int and its name ”accountNum”.• A variable with type double and its name ”balance”.Create the following three methods:• A method called ”Withdraw” of type void takes a parameter of type double called amount. The method takesthe amount of money a customer wants to withdraw from their balance and deducts it from the balance. Themethod must check if there is enough money to withdraw.• A method called ”Deposit” of type void and takes parameter of type double called amount. The method addsthe amount of money to a customer’s balance.• (Bonus) Create a method called ”GenerateAccountNum” to generate a random number with nine digits andassign the variable ”accountNum”The variables and methods names are case-sensitive.
Python program for this project: Patient Charges Write a class named Patient that has attributes for the following data: First name, middle name, and last name Address, city, state, and ZIP code Phone number Name and phone number of emergency contact The Patient class’s _ _init_ _ method should accept an argument for each attribute. The Patient class should also have accessor and mutator methods for each attribute. Next, write a class named Procedure that represents a medical procedure that has been performed on a patient. The Procedure class should have attributes for the following data: Name of the procedure Date of the procedure Name of the practitioner who performed the procedure Charges for the procedure The Procedure class’s _ _init_ _ method should accept an argument for each attribute. The Procedure class should also have accessor and mutator methods for each attribute. Next, write a program that creates an instance of the Patient class, initialized with sample data. Then,…
Write a Java class called BankAccount (Parts of the code is given below), which has two privatefields: name (String) and balance (double), and three methods: deposit(double amount),withdraw(double amount) and toString(). Write the necessary constructors, accessor methods andmutator methods. The deposit() method adds the amount to the account causing the current balanceto increase, withdraw() method subtracts the amount causing the current balance to decrease andtoString() method should return the name and the current balance separated by a comma. Forexample, if you print out the object with name Jake and balance 40.0 then it should print:Jake, $40.00public class BankAccount {private String name; ...public void deposit(double amount) {balance = balance + amount;}public void withdraw(double amount) {balance = balance – amount;}public BankAccount(){};public BankAccount(String name_new, double bal_new) {...}...}Write a client program called BankAccountClient that creates a BankAccount…
PLEASE USE PYTHON PROGRAMMING Create a class called Numbers, which has a single class attribute called MULTIPLIER, and a constructor which takes the parameters x and y (these should all be numbers). Write a method called add which returns the sum of the attributes x and y. Write a class method called multiply, which takes a single number parameter aand returns the product of a and MULTIPLIER. Write a static method called subtract, which takes two number parameters, b and c, and returns b - c. Write a method called value which returns a tuple containing the values of x and y. Make this method into a property, and write a setter and a deleter for manipulating the values of x and y. class Numbers: # TODO: create a class attribute called MULTIPLIER def __init__(self, x, y): self.x = x self.y = y def add(self): # TODO: return x + y def multiply(self, a): # TODO: return the attribute MULTIPLIER * by a. @staticmethod def subtract(b, c):…
Create a class named Calculate2. Add 2 instance variables, Quantity and UnitPrice. UnitPrice can include Rupees andCents.3. Add a no-argument constructor and a parameterized constructor.4. Add getters and setters for the 2 instance variables5. Add a user defined method named Total with no arguments. Total will calculate andreturn Quantity*UnitPrice. If Quantity is greater than 10, give 5% discount.6. Add a user defined method to display the total amount to the user.7. Create a Java Main application to create 2 objects using both constructors based onthe Calculate class to test the program.
can you please answer number 4 for me 1. Create a class called Student, with the following attributes/variables:a. studentName (String)b. studentNumber (int)sc. regYear(long)d. faculty(String)e. department(String)2. Add the following methods in Student:a. accessors and mutators for all variablesb. toString methodi. Formulate your toString so that it only shows studentName,studentNumber and faculty3. Create a class called MyFriends, with the following attributes variables:a. studentArray(Student[])4. Add the following methods in MyFriends:a. fillArrayi. Using scanner ask how many students does the user want to inputii. Capture user input for all of his friends(Of course we are assuming all your friends would be similarUWC students, go ask around and meet new friends, alsopreferably not in the same Computer Science department … ifpossible … only if possible)b. maini. Call the fillArray methodii. Count how many Computer Science studentsiii. If half or more students are Computer Science…