i need the answer quickly 6- How to make a C++ function work with multiple data types?C++7- Every class has a default copy constructor. (True or False).8- Create an Instance of the following class and call its methods.class Sensortfloat data:publie:float read() (return data:tloat write (float d) (data-d:)9- What type of error does the following lines of code have? Correct the error.int main()int e-s:double bee.45:int cra+b:cost

Make use of multiple data type in C++ functions As per our policies we will answer only 1st…

Answered: 6- How to make a C++ function work with…

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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8- Create an instance of the following class and call its methods. class Exam{ int grade; public: void seta (int b) (grade=b; } int geta () {return grade; } 9- When the word const is put before the variable definition, what does that mean? 10- How to concatenate two strings in C++ language? C++
Language: C++ Use the previously given files: Critter.h, Critter.cpp and testcritter.cpp. Expand Critter.h by two additional properties of your choice, and corresponding setter and getter methods, then adjust Critter.cpp and testcritter.cpp accordingly. Also adapt the print () method such that the new properties are printed on the screen as well. You can assume that the input will be valid.
C++ Coding Help (Operators: new delete) Assign pointer myGas with a new Gas object. Call myGas's Read() to read the object's fields. Then, call myGas's Print() to output the values of the fields. Finally, delete myGas. Ex: If the input is 14 45, then the output is: Gas's volume: 14 Gas's temperature: 45 Gas with volume 14 and temperature 45 is deallocated. #include <iostream>using namespace std; class Gas { public: Gas(); void Read(); void Print(); ~Gas(); private: int volume; int temperature;};Gas::Gas() { volume = 0; temperature = 0;}void Gas::Read() { cin >> volume; cin >> temperature;} void Gas::Print() { cout << "Gas's volume: " << volume << endl; cout << "Gas's temperature: " << temperature << endl;} Gas::~Gas() { // Covered in section on Destructors. cout << "Gas with volume " << volume << " and temperature " << temperature << " is deallocated."…
Topical Information Use C++. This lab is designed to give you practice with labeled data in files. Again, classes can help ease your design woes. Program Information Write a program that transfers the contents of one file to a second file. The first file will contain an arbitrary (unknown) number of data groups. A data group will normally consist of a person's name (a string containing spaces), the person's student ID (a large integer), the person's GPA (a floating point number), and the person's gender (a character). The data in each group should be in a labeled data format. Be sure to use some kind of string library to help you with the label/value processing (as we discussed in class). (The library provided here is good but not everything you'll need. You still need functions to convert strings into integers and into floating point numbers. string to bool, string to string, and string to character conversions should be fairly easy.) You can choose the actual values to use for the…
C++ Dynamic Programs Hoskins College offers both curriculum and continuing education courses. Write a program that dynamically tracks these courses using an array of object pointers. Every course (both curriculum and continuing education) has a course id, title, room number, and number of contact hours. A curriculum course has credit hours and tuition rate. Tuition is calculated by multiplying the course's credit hours by tuition rate. A continuing education course has a flat fee (cost). Implement a show() function in every class that displays the data in the object. Part A: Create an inheritance-based collection of classes to represent these different courses. Include code in main to test your work by instantiating objects of the two derived classes. Part B: Modify your program. Remove the objects you created in main to test the classes. Modify the base class so that show() becomes a virtual class. In main, create a single array capable of holding pointers to objects of both…
MindTap: In C#, Write a program named Averages that includes a method named Average that accepts any number of numeric parameters, displays them, and displays their average. Test your function in your Main(). Tests will be run against Average() to determine that it works correctly when passed one, two, or three numbers, or an array of numbers.
Problem Write a C++ program that will display multiple-choice trivia questions, accept the user's answers, and provide a full key and a score at the end. Question class Design and implement a class called Question. The Question class contains the following information: a stem (the text of the trivia question), an array of 4 multiple choice answers (the text of each possible answer) the letter of the correct answer (A, B, C, or D), called the key. This class will be used to represent trivia questions in a trivia game. The following operations should be available for Question objects (use the provided names). Construct a Question with no values (use empty strings for stem and answers and ‘X’ for the key). Construct a Question given its 3 components (). setStem: Set the stem question. getStem : Return the stem question. setAnswers : Set the 4 answers given an array. The answers will NOT include the letter (A, B, C, or D). getAnswer(i) : Return the single answer at index i. setKey: Set…
C++ PROGRAMS: Question#1:Define a class for rectangle objects defined by two points, the top-left and bottom-right corners of the rectangle. Include a constructor to copy a rectangle, a method to return a rectangle object that encloses the current object and the rectangle passed as an argument, and a method to display the defining points of a rectangle. Test the class by creating four rectangles and combining these cumulatively to end up with a rectangle enclosing them all. Output the defining points of all the rectangles you create.Question#2:Define a class, mcmLength, to represent a length measured in meters, centimeters, and millimeters, each stored as integers. Include methods to add and subtract objects, to multiply and divide an object by an integer value, to calculate an area resulting from the product of two objects, and to compare objects. Include constructors that accept three arguments—meters, centimeters, and millimeters; one integer argument in millimeters; one double…
Hi, I am having trouble with this homework question for my C++ course 1. Implement a Student class. a. Create a class Student with the following private data members:1. name2. exam_1 grade3. exam_2 gradeb. Create all appropriate accessor and mutator functions.c. Assign appropriate access modifiers to insure encapsulation.d. Add a private calc GPA() function that calculates and returns the GPAbased upon the two exam grades.e. Add a public getGrade() function that: 1. Obtains the GPA from the private calc GPA() function.2. Returns a letter grade based upon the numerical GPA value.90 to 100 = A80 to 90 = B70 to 80 = C60 to 70 = D0 to 60 = F f. Test all functions use following main.int main(){Student a;a.setName("David");a.setExam1(90);a.setExam2(80);cout<<a.getName()<<endl;cout<<a.getExam1()<<endl;cout<<a.getExam2()<<endl;cout<<a.getGrade()<<endl;}
Program language: C++ A publishing company markets both hardcopy and eBook versions of its work. Create a class publication that stores the title and price of a publication. From this class derive two classes: book, which adds a page count, and digital, which adds a storage capacity in MG bytes. Each of these classes should have a getdata() function to get its data from the user at the keyboard and put a putdata() function to display its data. Add a base class sales that hold an array of three floats so that it can record the dollar sales of a particular publication for the last three months. Include a getData() function to get three sales amounts from the user and a putdata() function to display the sales figures. Modify the book and digital classes so they are derived from both publication and sales. An object of the class book or digital should input and output sales data along with its other data. Write the main function to create a book object and a digital object and test their…
Please written by computer source Problem Description:(The Account class) Design a class named Account that contains:A private int data field named id for the account (default 0).A private string data filed named first name for customer first name.A private string data filed named last name for customer last name.A private double data field named balance for the account (default 0).A private double data field named annualInterestRate that stores thecurrent interest rate (default 0). Assume all accounts have the sameinterest rate.A private Date data field named dateCreated that stores the date whenthe account was created.A no-arg constructor that creates a default account.A constructor that creates an account with the specified id, firstname, last name and initial balance.The accessor and mutator methods for id, name, balance, andannualInterestRate.The accessor method for dateCreated.A method named getMonthlyInterestRate() that returns the monthlyinterest rate.A method named withdraw…
PROGRAMMING LANGUAGE: C++ You need to store hiring date and date of birth for teachers, and for students store their admission date and date of birth. You need to create a Date class for this purpose. Create objects of Date class in Teacher and Student class to store respective dates. You need to write print function in Teacher and Student classes as well to print all information of Teachers and Students. You need to perform composition to implement this task. Create objects of Teacher and Student classes in main function and call print function for both objects. Print Date class here. Print updated Teacher class here. Print updated Student class here. Print main function here. Print Outputshere.

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