Following the example of the Rectangle class of Chapter 9 Exercise 1, design a class named Cuboid to represent a cuboid. The class contains: • Three data fields named length, width, and height. • A constructor that creates a cuboid with the specified length, width, and height. A method named getVolume() that returns the volume of this cuboid. Then, please create an object mycuboid = Cuboid (2, 3, 4), and invoke getVolume %3D to print the volume of mycuboid.

Following the example of the Rectangle class of Chapter 9 Exercise 1, design a class named Cuboid to represent a cuboid. The class contains: • Three data fields named length, width, and height. • A constructor that creates a cuboid with the specified length, width, and height. A method named getVolume() that returns the volume of this cuboid. Then, please create an object mycuboid = Cuboid (2, 3, 4), and invoke getVolume %3D to print the volume of mycuboid.

Programming Logic & Design Comprehensive

9th Edition

ISBN:9781337669405

Author:FARRELL

Publisher:FARRELL

Chapter10: Object-oriented Programming

Section: Chapter Questions

Problem 19RQ

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Create a class called “Rectangle” with properties of length and width, andincludes method to calculate the area and perimeter of the rectangle. Create aDriver class and instantiate 2 Rectangle objects that return the area andperimeter for each. Please feel free to set the length and width to values ofyour choice. for JAVA
a. Write a FractionDemo program that instantiates several Fraction objects and demonstrates that their methods work correctly. Create a Fraction class with fields that hold a whole number, a numerator, and a denominator. In addition: Create properties for each field. The set access or for the denominator should not allow a 0 value; the value defaults to 1. Add three constructors. One takes three parameters for a whole number, numerator, and denominator. Another accepts two parameters for the numerator and denominator; when this constructor is used, the whole number value is 0. The last constructor is parameterless; it sets the whole number and numerator to 0 and the denominator to 1. (After construction, Fractions do not have to be reduced to proper form. For example, even though 3/9 could be reduced to 1/3, your constructors do not have to perform this task.) Add a Reduce() method that reduces a Fraction if it is in improper form. For example, 2/4 should be reduced to 1/2. Add an operator+() method that adds two Fractions. To add two fractions, first eliminate any whole number part of the value. For example, 2 1/4 becomes 9/4 and 1 3/5 becomes 8/5. Find a common denominator and convert the fractions to it. For example, when adding 9/4 and 8/5, you can convert them to 45/20 and 32/20. Then you can add the numerators, giving 77/20. Finally, call the Reduce() method to reduce the result, restoring any whole number value so the fractional part of the number is less than 1. For example, 77/20 becomes 3 17/20. Include a function that returns a string that contains a Fraction in the usual display formatâ€”the whole number, a space, the numerator, a slash (D, and a denominator. When the whole number is 0, just the Fraction part of the value should be displayed (for example, 1/2 instead of 0 1/2). If the numerator is 0, just the whole number should be displayed (for example, 2 instead of 2 0/3). b. Add an operator*() method to the Fraction class created in Exercise 11a so that it correctly multiplies two Fractions. The result should be in proper, reduced format. Demonstrate that the method works correctly in a program named FractionDemo2. c. Write a program named FractionDem03 that includes an array of four Fractions. Prompt the user for values for each. Display every possible combination of addition results and every possible combination of multiplication results for each Fraction pair (that is, each type will have 16 results).
a. Carly's Catering provides meals for parties and special events. In Chapters 3 and 4, you created an Event class for the company. Now, make the following changes to the class: Currently, the class contains a field that holds the price for an Event. Now add another field that holds the price per guest, and add a public method to return its value. Currently, the class contains a constant for the price per guest. Replace that field with two fields—a lower price per guest that is $32, and a higher price per guest that is $35. Add a new method named isLargeEvent() that returns true if the number of guests is 50 or greater and otherwise returns false. Modify the method that sets the number of guests so that a large Event (more than 50 guests) uses the lower price per guest to set the new pricePerGuest field and calculate the total Event price. A small Event uses the higher price. Save the file as Event.java. b. In Chapter 4, you modified the EventDemo class to demonstrate two Event…
Following the example of the Circle class in Section 9.2 , design a class named Stock that contains: A string data field named symbol for the stock’s symbol. A string data field named name for the stock’s name. A double data field named previousClosingPrice that stores the stock price for the previous day. A double data field named currentPrice that stores the stock price for the current time. A constructor that creates a stock with the specified symbol and name. A method named getChangePercent() that returns the percentage changed from previousClosingPrice to currentPrice. Write a test program that creates a Stock object with the stock symbol ORCL, the name Oracle Corporation, and the previous closing price of 34.5. Set a new current price to 34.35. Select 9 more stocks with the current prices and create objects with the current prices as previous Closing prices. After 2 or more days get the price for each stock in your list and use the currentPrice method to store the current…
I need to write a jave program to keep track of a team sport. Write a class, Team.java, that has the following: * two private instance variables: a String named color and an int named score. * a default constructor with no parameters that initializes color to "Red" and score to zero. * a constructor that takes two parameters (one for each instance variable) and sets the values of the instance variables. * a public getter and setter method for each instance variable. * a toString method that returns the color and score in the following format: "Red Team with 0 points."
(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.
In Java, Create a class Rectangle with double attributes length and width. The default constructor should set these attributes to 1. Provide methods that calculate the rectangle's perimeter and area, as well as accessors and mutators for both data fields. The mutator methods for length and width should verify that the number being passed in is larger than 0.0 and less than 20.0 -- if it doesn't fit those criteria, the value of the field should not be changed.Write a Driver class in the same file to test your Rectangle class. It should prompt the user to enter a length and width of a rectangle, and then print out the area and perimeter of the rectangle. (Use the mutators to set the length and width of the rectangle, not the constructor.)
Create a Shape class that shall have color and filled instance variables of enum Color and boolean type. The filled boolean variable shall show, whether the shape is filled (colored). The enum Color shall be defined within the class having 4 color names (choose any four). Also define getArea and getPerimeter method in Shape class, both shall return 0. Create Rectangle class with length and width attributes and a Circle class with radius attribute, of type double. Properly encapsulate all fields. Circle and Rectangle shall extend Shape class and override getArea and getPerimters methods as per its type and specific formula. In Test class, create an object of Rectangle and Circle, by initializing all attributes in constructor and print both shapes' area and perimters. In Test class, define a static method with following signature, public static void printEachShapeCount(Shape... shapes) As you know, the parent type variable can hold the reference of any child class object. That…
For this lab task, you will work with classes and objects. Create a class named text that works similar to the built-in string class. You will need to define a constructor that can be used to initialize objects of this new class with some literal text. Next, define three methods: to_upper() that will convert all characters to uppercase, reverse() that will reverse the text and length() that will return the length of the text. After you have completed this part, copy the following mainfunction to your code and check if the implementation is correct. int main() { text sample = "This is a sample text"; cout << sample.to_upper(); // This should display "THIS IS A SAMPLE TEXT" cout << endl;cout << sample.reverse(); // This should display "txet elpmas a si sihT"cout << endl; cout << sample.length(); // This should display 21 }
Please do not give solution in image format thanku I have the following subclass that extends from a main class. Can you give me a brief explanation talking about all of the attributes, methods and etc. I want it in a very professional way please. here's the code package Banking_Management_Sys; public class MortgageAccount extends CustomersAccounts { private double loanAmount; private double interestRate; private int loanTerm; private int paymentFrequency; private String lender; public MortgageAccount() { } public MortgageAccount(int accountnum, String type, double balance, String dateopened, String dateclosed, String owner, double loanAmount, double interestRate, int loanTerm, int paymentFrequency, String lender) { super(accountnum, type, balance, dateopened, dateclosed, owner); this.loanAmount = loanAmount; this.interestRate = interestRate; this.loanTerm = loanTerm; this.paymentFrequency = paymentFrequency; this.lender = lender; } public…
Use the GemotricObject class and its subclassess Cirlce and Rectangle to do the following: 1.Override Object’s toString() method in Circle class to returnthe status of Circle object. 2.Override Object’s toString() method in Rectangle class to return the status of Rectangle object. 3.Overide Object’s equals() method to compare two circle objects. 4.Overide Object’s equals() method to compare two Rectangle objects. 5.Test the above statements in the main method.
The Rectangle class) Following the example of the Circle class in Section 9.2, design a class named Rectangle to represent a rectangle. The class contains: ■ Two double data fields named width and height that specify the width 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. ■ A method named getPerimeter() that returns the perimeter.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 40and the other with width 3.5 and height 35.9. Display the width, height, area, and perimeter of each rectangle in this order.