Create a new Type called Fraction Fraction when created takes in two values (numerator and denominator, num and den) should be able to add and subtract two fractions (think common denomenator when adding and subtracting) Inverting display the representation of the number as a fraction here is part of the class Fraction class Fraction(object): def _init_(self, num, den): self.num = num self.den = den def _str_(self): return str(self.num) + "/" + str(self.den) def _add_(self, other): pass def _sub_(self,other): pass def inv(self): pass def _repr_(self): return str(self.num) + "/" + str(self.den) Here is an example of how it should work when using the console: >> x = Fraction(2,3) >> print(x) 2/3 >> y= Fraction(3,4) >> print(y) 3/4 >> z = x + y >> print(z) 17/12

Create a new Type called Fraction Fraction when created takes in two values (numerator and denominator, num and den) should be able to add and subtract two fractions (think common denomenator when adding and subtracting) Inverting display the representation of the number as a fraction here is part of the class Fraction class Fraction(object): def _init_(self, num, den): self.num = num self.den = den def _str_(self): return str(self.num) + "/" + str(self.den) def _add_(self, other): pass def _sub_(self,other): pass def inv(self): pass def _repr_(self): return str(self.num) + "/" + str(self.den) Here is an example of how it should work when using the console: >> x = Fraction(2,3) >> print(x) 2/3 >> y= Fraction(3,4) >> print(y) 3/4 >> z = x + y >> print(z) 17/12

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter10: Introduction To Inheritance

Section: Chapter Questions

Problem 4E: Create an application for Ninas Cookie Emporium named CookieDemo that declares and demonstrates...

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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).
In Chapter 9, you created a Contestant class for the Greenville Idol competition. The class includes a contestants name, talent code, and talent description. The competition has become so popular that separate contests with differing entry fees have been established for children, teenagers, and adults. Modify the Contestant class to contain a field that holds the entry fee for each category, and add get and set accessors. Extend the Contestant class to create three subclasses: ChildContestant, TeenContestant, and AdultContestant. Child contestants are 12 years old and younger, and their entry fee is $15. Teen contestants are between 13 and 17 years old, inclusive, and their entry fee is S20. Adult contestants are 18 years old and older, and their entry fee is $30. In each subclass, set the entry fee field to the correct value, and override the Tostring() method to return a string that includes all the contestant data, including the age category and the entry fee. Modify the GreenvilleRevenue program so that it performs the following tasks: The program prompts the user for the number of contestants in this years competition, which must be between 0 and 30. The program continues to prompt the user until a valid value is entered. The program prompts the user for names, ages, and talent codes for the contestants entered. Along with the prompt for a talent code, display a list of valid categories. Based on the age entered for each contestant, create an object of the correct type (adult, teen, or child), and store it in an array of Contestant objects. After data entry is complete, display the total expected revenue, which is the sum of the entry fees for the contestants. After data entry is complete, display the valid talent categories and then continuously prompt the user for talent codes, and display all the data for all the contestants in each category. Display an appropriate message if the entered code is not a character or a valid code.
Create an application for Ninas Cookie Emporium named CookieDemo that declares and demonstrates objects of the CookieOrder class and its descendants. The CookieOrder class includes auto-implemented properties for an order number, recipients name, and cookie type (for example, chocolate chip), and fields for number of dozens ordered and price. When the field value for number of dozens ordered is set, the price field is set as $15 per dozen for the first two dozen and $13 per dozen for each dozen over two. Create a child class named Special Cookieorder, which includes a field with a description as to why the order is special (for example, gluten-free). Override the method that sets a CookieOrders price as described in part a, but also to include special handling, which is SIO for orders up to $40 and $8 for higher-priced orders. Create an application named CookieDem02 that demonstrates using several Special CookieOrder objects.
Write a derived class of the NumberGuesser class named RandomNumberGuesser. The derived class should override the behavior of the getCurrentGuess method. It may also add member data and its own constructor. It may also override the higher(), lower() and reset() methods as you see fit. To get everyone started off on the same page I have written a NumberGuesser class. It is defined entirely in-line in the following file: NumberGuesser.h (Links to an external site.) In the current NumberGuesser class the getCurrentGuess() method returns the midpoint of the range of possible values. In your RandomNumberGuesser class the getCurrentGuess() method should return a randomly generated number in the range of possible values. Note that repeated calls to getCurrentGuess() should always return the same value for both classes if neither the higher() or the lower() functions are called. Consider the following example: NumberGuesser *ng = new NumberGuesser(1, 10);cout <<…
ShoppingCart.java - Class definition ShoppingCartManager.java - Contains main() method Build the ShoppingCart class with the following specifications. Private fields String customerName - Initialized in default constructor to "none" String currentDate - Initialized in default constructor to "January 1, 2016" ArrayList cartItems Default constructor Parameterized constructor which takes the customer name and date as parameters Public member methods getCustomerName() accessor getDate() accessor addItem() Adds an item to cartItems array. Has a parameter of type ItemToPurchase. Does not return anything. removeItem() Removes item from cartItems array. Has a string (an item's name) parameter. Does not return anything. If item name cannot be found, output a message: Item not found in cart. Nothing removed. modifyItem() Modifies an item's description, price, and/or quantity. Has a parameter of type ItemToPurchase. Does not return anything. If item can be found (by name) in cart,…
* Design a class ourVector that mimics the javaVector. The class has the following * properties: - A private variable size that keeps track of how many elements in the array - A reference to an array of integers - An increment by how much to increase wjen it's full - A default constructor that creates an array of 5 with increment 10; - A constructor that accepts the initial capacity and creates an array of that capacity and an increment of twice the capacity - A constructor that accepts two integers, the first for the capacity and the second for increment. - Capacity, the length of the array - int size(); A method that returns the size of the array - boolean isEmpty(); returns true if it's empty and false if not. - void addBack(int e); adds e to the back of the array - void addFront(int e); adds e to the front of the array. - Override String toString(); to return the content of the array in the form [-1, -4, -6] - int elementAt(int ind); returns the elements…
A. Create a BankAccount class. We want to be able to create a new bank account, make deposits and withdrawals, and check the balance. Each bank account created should receive a unique account id, numbered sequentially 1001, 1002, 1003, and so on. We should be able to change the name on the account. We should also be able to retrieve the account id and the name on the account. Provide a constructor that takes a name for the account as a parameter. Remember that a constructor has the same name as the class. The constructor should initialize all of the instance variables. What does the class need to remember? Those are the instance variables. There should be three. Provide the following methods: public double getID() gets the account id of this BankAccount public double getBalance() gets the balance of this BankAccount public String getName() gets the name of this BankAccount public void setName(String newName) sets a new name for this BankAccount public void deposit(double…
Create a classstudent which includes parameters roll_no, name and address and consider as super class.Then create sub class test with parameters marl1, mark2, mark3 and mark4. Then create another sub class result with parameters total_marks, percentage and grade. Apply multi level inheritance. Here Student class is the super class for test class and test class is super class of resultclass. Implement a java application in which obtain the details roll_no, name, address, marl1, mark2, mark3 and mark4 from user side andthen print total_marks, percentage and grade.Studentàtestàresult
Create a class Car with parameters companyName, color, maxSpeed (Not more than 150) andcategory. Use appropriate data types and access specifiers. Use default constructor to create objectsof cars. Write methods to set and get the values of parameters of car. Write methods to find categoryof car and to display the complete details of car along with category. Create another class TestCarwhich creates array of n number of cars, uses appropriate set methods to set the values of parametersof every car. Display the details of each car. (If max speed is between 120 and 150 then category is“High speed” otherwise “Normal”) (JAVA)
Write a PaypalAccount class to include both balance and accountID as the instance variables. Make sure each instance of this account will have a unique accountID. In other words, different account object should have different accountID (hint: class variable). 2.Write a Bank class with main method. In the main method, ask the user to input how many accounts (say numOfAccount) to be generated in the bank (assuming less than 1000). Then create an array to hold these numOfAccount of Account objects. For each Account object, generate a random balance in the range of 0.0-1000.0. a. Assume that your GSU campus ID is abc-de-fghi; search the array to see if there is an account with accountID as abc (the first three digits of your campus ID). If there is not an account with accountID as abc, then set the accountID of the last account in the array as abc; transfer all the balance of the first account to the account with accountID of abc b. Set the balance of the account with accountID of abc to…
FootballTeam ClassDefine a class in the FootballTeam java file that will represent a football team as follows: ● The class has the following three fields which cannot be accessed outside of the class. • name of the team (teamName)• number of wins (numOfWins)• number of losses (numOfLosses)● Write a constructor that accepts the name of the team (n), the number of wins (w), and the number of losses (l) as arguments and sets the class properties to those values. ● Write methods that return the name of the team (getTeamName), the number of wins (getNumOfWins), and the number of losses (getNumOfLosses). ● Next, write a method to increase the numbers of wins by 1 (increaseWins) and another method to increase the number of losses by one (increaseLosses). ● Write a method that returns true when a team has a “good record,” meaning the team has more wins than losses(getRecord).● Write a driver program in the FootballTeamDemo class. ○ In the main method, construct a FootballTeam named…
Create a TeeShirt class for Toby’s Tee Shirt Company. Fields include: orderNumber - of type int size - of type String color - of type String price - of type double Create set methods for the order number, size, and color and get methods for all four fields. The price is determined by the size: $22.99 for XXL or XXXL, and $19.99 for all other sizes. Create a subclass named CustomTee that descends from TeeShirt and includes a field named slogan (of type String) to hold the slogan requested for the shirt, and include get and set methods for this field.