The CashRegister class we saw is stored on Moodle. Copy it and make the following change: Reimplement the class as CashRegister2, so that it keeps track of the price of each added item in a data member vector itemPrices. Remove the item_count and the total_price data members (no longer needed). Reimplement the constructor, clear, add_item, get_count and get_total functions. Add a member function: void display_all();

The CashRegister class we saw is stored on Moodle. Copy it and make the following change: Reimplement the class as CashRegister2, so that it keeps track of the price of each added item in a data member vector itemPrices. Remove the item_count and the total_price data members (no longer needed). Reimplement the constructor, clear, add_item, get_count and get_total functions. Add a member function: void display_all();

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Goal 1: Update the Fractions Class Here we will overload two functions that will used by the Recipe class later: multipliedBy, dividedBy Previously, these functions took a Fraction object as a parameter. Now ADD an implementation that takes an integer as a parameter. The functionality remains the same: Instead of multiplying/dividing the current object with another Fraction, it multiplies/divides with an integer (affecting numerator/denominator of the returned object). For example; a fraction 2/3 when multiplied by 4 becomes 8/3. Similarly, a fraction 2/3 when divided by 4 becomes 1/6. Goal 2: Update the Recipe Class The Recipe constructors so far did not specify how many servings the recipe is for. We will now add a private member variable of type int to denote the serving size and initialize it to 1. This means all recipes are initially constructed for a single serving. Update the overloaded extraction operator (<<) to include the serving size (see sample output below for an…
Create a class of Company having private data members. Make all constructors along with setter getter. Also make a print function that can print all the information of that company.
In Assignment 4, you created a Card class that represents a standard playing card. Use this to design and implement a class called DeckOfCards that stores 52 objects of the Card class using an array. Include methods to shuffle the deck, deal a card, return the number of cards left in the deck, and a toString to show the contents of the deck. The shuffle methods should assume a full deck. Document your design with a UML Class diagram. Create a separate driver class that first outputs the populated deck to prove it is complete, shuffles the deck, and then deals each card from a shuffled deck, displaying each card as it is dealt along with the number of cards left in the deck. Hint: The constructor for DeckOfCards should have nested for loops for the face values (1 to 13) within the suit values (1 to 4) calling the two parameter constructor. The shuffle method does not have to simulate how a deck is physically shuffled; you can achieve the same effect by repeatedly swapping pairs of…
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In Assignment 4, you created a Card class that represents a standard playing card. Use this to design and implement a class called DeckOfCards that stores 52 objects of the Card class using an array. Include methods to shuffle the deck, deal a card, return the number of cards left in the deck, and a toString to show the contents of the deck. The shuffle methods should assume a full deck. Document your design with a UML Class diagram. Create a separate driver class that first outputs the populated deck to prove it is complete, shuffles the deck, and then deals each card from a shuffled deck, displaying each card as it is dealt along with the number of cards left in the deck. Hint: The constructor for DeckOfCards should have nested for loops for the face values (1 to 13) within the suit values (1 to 4) calling the two parameter constructor. The shuffle method does not have to simulate how a deck is physically shuffled; you can achieve the same effect by repeatedly swapping pairs of…
Novice: How can i access a main class objects from outside the function? / Better Alternative? If i have 4 Student objects how can i print the information for the specific object given one parameter about the class, like the students Idnumber. What i came up with was making a checkId void function that takes the user input and runs an if else chain checking if the Id belongs to student 1-4 then printing the details of that classes object with the void function print. ideally i would want the if-else chain in the checkId function to call the print( student1-4) class object but im not sure how to properly do that. i dont think this is the best way to go about it, if you have any recommendations or alternatives please help me out.
Exercise: Exercises Write a class named Octagon that extends GeometricObject and implements the Comparable and Cloneable interfaces. Assume all eight sides of the octagon are of equal length. The area can be computed using the following formula: The Octagon class has a private double data field named side with its getter and setter methods. The class has a no-arg constructor that creates an Octagon with side 0, and a constructor to create an Octagon with a specified side. Write a test program that creates an Octagon object with side value 5 and displays its area and perimeter. Create a new object using the clone method, and compare the two objects using the compareTo method. As far as classes go, the abstract GeometricObject class contains the abstract doubles getArea() and getPerimeter(). The programming language used in this exercise is Java, and it covers the Interfaces topic. I did get how most of the program should look like, but I'm facing trouble understanding a few…
Create the following classes based on the given declaration. Also, each class should have the default constructor. Just place the prototype of the constructors in the class but you dont have to implement them. The default constructor is a public member. A) CSUSM is an object of class University. Class University has the follow private attributes: -UnivName: string -UnivDepts: a vector of Department class -UnivStudents: a vector of student class -UnivAddress: string -UnivAge: int B) Each department has the following private attributes: -deptName: string -deptFaculty: vector of Faculty class -deptYearCreated: int C) Each student has the following private attributes: -studName: string -studYearOfStudy: int -studNumber: long -studCoursesTaken: vector of Course class D) Each faculty has the following private attributes: -FacName: string -FacYearofExperience:int -FacId: long -FacCoursesTeaches: vector of Course Class E) Each course has the following private attributes:…
Create a Vector2D class with properties x and y and a proper constructor method.
10. Please do in java code DJ classDesign, implement and test a DJ class. A DJ object has a name - djName and an isHired attribute (boolean). Also, a DJ object has 3 musicTypes. These are references to the Music class, where the musicType is declared. In Stage 2 you will be required to declare these 3 instance variables as 1 array.A DJ object can return the value of each of its attributes, and change the value of each of its attributes. It can also display itself in the form:Kongapa, Play List: Disco, Rap, Heavy Metal is hiredImpressions, Play List: House, Hip Hop, Jazz is available
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