Starting Out with C++ from Control Structures to Objects (9th Edition)
9th Edition
ISBN: 9780134498379
Author: Tony Gaddis
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 13, Problem 9PC
Population
In a population, the birth rate and death rate are calculated as follows:
Birth Rate = Number of Births ÷ Population
Death Rate = Number of Deaths ÷ Population
For example, in a population of 100,000 that has 8,000 births and 6,000 deaths per year, the birth rate and death rate are:
Birth Rate = 8,000 ÷ 100,000 = 0.08
Death Rate = 6,000 4 ÷ 100,000 = 0.06
Design a Population class that stores a population, number of births, and number of deaths for a period of time. Member functions should return the birth rate and death rate. Implement the class in a
Input Validation: Do not accept population figures less than 1, or birth or death numbers less than 0.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
employee and production worker classes write an employee class that keeps data attributes for the following pieces of information: • employee name • employee number next, write a class named productionworker that is a subclass of the employee class. the productionworker class should keep data attributes for the following information: • shift number (an integer, such as 1, 2, or 3) • hourly pay rate the workday is divided into two shifts: day and night. the shift attribute will hold an integer value representing the shift that the employee works. the day shift is shift 1 and the night shift is shift 2. write the appropriate accessor and mutator methods for each class. once you have written the classes, write a program that creates an object of the productionworker class and prompts the user to enter data for each of the object’s data attributes. store the data in the object, then use the object’s accessor methods to retrieve it and display it on the screen. satak overfallow
Problem: Employee and ProductionWorker Classes
Write a python class named ProductionWorker that is a subclass of the Employee class. The ProductionWorker class should keep data attributes for the following information:
• Shift number (an integer, such as 1, 2, or 3)• Hourly pay rateThe workday is divided into two shifts: day and night. The shift attribute will hold an integer value representing the shift that the employee works. The day shift is shift 1 and the night shift is shift 2. Write the appropriate accessor and mutator methods for this class. Once you have written the class, write a program that creates an object of the ProductionWorker class, and prompts the user to enter data for each of the object’s data attributes. Store the data in the object, then use the object’s accessor methods to retrieve it and display it on the screen
Note: The program should be written in python.
Sample Input/Output:
Enter the name: Ahmed Al-AliEnter the ID number: 12345Enter the department:…
Cruise Recreational Activities Example
Recreational activities include things like aerobics, shuffle board, and swimming. Each activity is identified by an activity code and includes other information such as description. Classes are offered for each activity. A class is uniquely identified by a combination of the activity code and the day/time at which it is held. It is assumed that a specific class will never be offered for the same activity at the same day and time, although it could be offered on a different day and/or time. Other information about a class includes the enrollment limit and the current enrollment count. A class will never include more than one activity. A passenger can sign up for a class as long as there is sufficient room in the class. Passengers are identified by a unique passenger number. Other information stored about passengers includes name, address, and age. Passengers have no limit on the number and type of classes they can sign up for. When they…
Chapter 13 Solutions
Starting Out with C++ from Control Structures to Objects (9th Edition)
Ch. 13.3 - True or False: You must declare all private...Ch. 13.3 - Assume RetailItem is the name of a class, and the...Ch. 13.3 - An objects private member variables are accessed...Ch. 13.3 - Assume RetailItem is the name of a class, and the...Ch. 13.3 - Complete the following code skeleton to declare a...Ch. 13.6 - Why would you declare a classs member variables...Ch. 13.6 - When a classs member variables are declared...Ch. 13.6 - What is a class specification file? What is a...Ch. 13.6 - Prob. 13.9CPCh. 13.6 - Assume the following class components exist in a...
Ch. 13.6 - What is an inline member function?Ch. 13.9 - Briefly describe the purpose of a constructor.Ch. 13.9 - Prob. 13.13CPCh. 13.9 - A member function that is never declared with a...Ch. 13.9 - A member function that is never declared with a...Ch. 13.9 - Prob. 13.16CPCh. 13.9 - A constructor that requires no arguments is called...Ch. 13.9 - True or False: Constructors are never declared...Ch. 13.9 - True or False: Destructors are never declared with...Ch. 13.9 - Prob. 13.20CPCh. 13.12 - What will the following program display on the...Ch. 13.12 - What will the following program display on the...Ch. 13.12 - In your answer for Checkpoint 13.22, indicate for...Ch. 13.12 - Why would a member function be declared private?Ch. 13.12 - Define an array of three InventoryItem objects.Ch. 13.12 - Complete the following program so it defines an...Ch. 13.16 - Prob. 13.27CPCh. 13.16 - When designing an object-oriented application, who...Ch. 13.16 - How do you identify the potential classes in a...Ch. 13.16 - What are a classs responsibilities?Ch. 13.16 - What two questions should you ask to determine a...Ch. 13.16 - Will all of a classs actions always be directly...Ch. 13.16 - Look at the following description of a problem...Ch. 13 - What is the difference between a class and an...Ch. 13 - What is the difference between the following...Ch. 13 - What is the default access specification of class...Ch. 13 - Look at the following function header for a member...Ch. 13 - A contractor uses a blueprint to build a set of...Ch. 13 - What is a mutator function? What is an accessor...Ch. 13 - Is it a good idea to make member variables...Ch. 13 - Can you think of a good reason to avoid writing...Ch. 13 - Under what circumstances should a member function...Ch. 13 - What is a constructor? What is a destructor?Ch. 13 - What is a default constructor? Is it possible to...Ch. 13 - Is it possible to have more than one constructor?...Ch. 13 - If a class object is dynamically allocated in...Ch. 13 - When defining an array of class objects, how do...Ch. 13 - What are a classs responsibilities?Ch. 13 - How do you identify the classes in a problem...Ch. 13 - Programming: In programming, there are two most...Ch. 13 - ____________ programming is centered around...Ch. 13 - _________ programming is centered around objects.Ch. 13 - _____________ is an objects ability to contain and...Ch. 13 - In C++, the _________ is the construct primarily...Ch. 13 - A class is very similar to a(n) _____________.Ch. 13 - A(n) _________ is a key word inside a class...Ch. 13 - The default access specification of class members...Ch. 13 - The default access specification of a struct in...Ch. 13 - Defining a class object is often called the...Ch. 13 - Members of a class object may be accessed through...Ch. 13 - If you were writing the declaration of a class...Ch. 13 - If you were writing the external definitions of...Ch. 13 - When a member functions body is written inside a...Ch. 13 - A(n) __________ is automatically called when an...Ch. 13 - A(n) __________ is a member function with the same...Ch. 13 - __________ are useful for performing...Ch. 13 - Constructors cannot have a(n) _________ type.Ch. 13 - A(n) ___________ constructor is one that requires...Ch. 13 - A(n) ___________ is a member function that is...Ch. 13 - A destructor has the same name as the class, but...Ch. 13 - Like constructors, destructors cannot have a(n)...Ch. 13 - A constructor whose arguments all have default...Ch. 13 - A class may have more than one constructor, as...Ch. 13 - Prob. 41RQECh. 13 - A(n) __________ may be used to pass arguments to...Ch. 13 - Write a class declaration named Circle with a...Ch. 13 - Add a default: constructor to the Circle class in...Ch. 13 - Add an overloaded constructor to the Circle class...Ch. 13 - Write a statement that defines an array of five...Ch. 13 - Write a statement that defines an array of five...Ch. 13 - Prob. 48RQECh. 13 - If the items on the following list appeared in a...Ch. 13 - Look at the following description of a problem...Ch. 13 - T F Private members must be declared before public...Ch. 13 - T F Class members are private by default.Ch. 13 - T F Members of a struct are private by default.Ch. 13 - T F Classes and structures in C++ are very...Ch. 13 - T F All private members of a class must be...Ch. 13 - T F All public members of a class must be declared...Ch. 13 - T F It is legal to define a pointer to a class...Ch. 13 - T F You can use the new operator to dynamically...Ch. 13 - T F A private member function may be called from a...Ch. 13 - T F Constructors do not have to have the same name...Ch. 13 - T F Constructors may not have a return type.Ch. 13 - T F Constructors cannot take arguments.Ch. 13 - T F Destructors cannot take arguments.Ch. 13 - T F Destructors may return a value.Ch. 13 - T F Constructors may have default arguments.Ch. 13 - T F Member functions may be overloaded.Ch. 13 - T F Constructors may not be overloaded.Ch. 13 - T FA class may not have a constructor with no...Ch. 13 - T F A class may only have one destructor.Ch. 13 - T F When an array of objects is defined, the...Ch. 13 - T F To find the classes needed for an...Ch. 13 - T F A classs responsibilities are the things the...Ch. 13 - class Circle: { private double centerX; double...Ch. 13 - #include iostream using namespace std; Class Moon;...Ch. 13 - #inc1ude iostream using namespace std; class...Ch. 13 - class Change { public: int pennies; int nickels;...Ch. 13 - Date Design a class called Date. The class should...Ch. 13 - Employee Class Write a class named Employee that...Ch. 13 - Car Class Write a class named Car that has the...Ch. 13 - Patient Charges Write a class named Patient that...Ch. 13 - Retail Item Class Write a class named RetailItem...Ch. 13 - Inventor Class Design an Inventory class that can...Ch. 13 - TestScores Class Design a TestScores class that...Ch. 13 - Circle Class Write a Circle class that has the...Ch. 13 - Population In a population, the birth rate and...Ch. 13 - Number Array Class Design a class that has an...Ch. 13 - Payroll Class Design a PayRoll class that has data...Ch. 13 - Coin Toss Simulator Write a class named Coin. The...Ch. 13 - Tossing Coins for a Dollar For this assignment,...Ch. 13 - Fishing Game Simulation For this assignment, you...Ch. 13 - Mortgage Payment Design a class that will...Ch. 13 - Freezing and Boiling Points The following table...Ch. 13 - Cash Register Design a CashRegister class that can...Ch. 13 - A Game of 21 For this assignment, you will write a...Ch. 13 - Trivia Game In this programming challenge, you...Ch. 13 - Patient Fees 1. This program should be designed...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
The following program will compile and run, but it uses poor programming style. Modify the program so that it u...
Absolute Java (6th Edition)
(Arithmetic, Largest Value and Smallest Value) Write a program that inputs three different integers from the ke...
C How to Program (8th Edition)
Tuition Increase At one college, the tuition for a full-time student is 8,000 per semester. It has been announc...
Starting Out with Python (3rd Edition)
Ship, CruiseShip, and CargoShip Classes Design a Ship class that the following members: A field for the name of...
Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
Modify Program 7.8 so that the value of g is printed each time through the w loop. Notice how quickly the value...
Programming in C
What is the error in the following structure definition? What is the message your compiler gives for this error...
Problem Solving with C++ (9th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Employee class Write a Python program employee.py that computes the cumulative salary of employees based on the length of their contract and their annual merit rate. Your program must include a class Employee with the following requirements: Class attributes: name: the name of the employee position: the position of the employee start_salary: the starting salary of the employee annual_rate: the annual merit rate on the salary contract_years: the number of years of salary Class method: get_cumulative_salary(): calculates and returns the cumulative salary of an employee based on the number of contract years. Round the cumulative salary to two digits after the decimal point. Example: If start_salary = 100000, annual_rate = 5% and contract_years = 3: Then the cumulative salary should be : 100000 + 105000 + 110250 = 315250 Outside of the class Employee, the program should have two functions: Function name Function description Function input(s) Function output(s) / return…arrow_forwardWrite UML Class Diagram that illustrates the following program: 1) Person class The person class should include the following data fields; • Name • ID number • birth date • home address • phone number Be sure to include get and set methods for each data field. 2) Course class The course class should contain the following fields: • ID Number • Name College (Business, Engineering, Nursing, etc) • An Array of person objects . 3) University class The University class should contain the data fields for the university, such as: • University name • Federal ID number • Address • Array / ArrayList of course class objects • Array / ArrayList of person class objects Extended Classes: 4 & 5) Extend the Person class into Student class and Employee class 6) Extend the Employee class into Instructor class and Staff class 7 & 8) Extend the Student class into graduate Student and undergrad Student class 9) Registration Class ---> The Registration class creates transactions to link each student with…arrow_forwardProgramming Language= PYTHON 1. Pet Class Write a class named Pet, which should have the following data attributes: • _ _name (for the name of a pet) • _ _animal_type (for the type of animal that a pet is. Example values are ‘Dog’, ‘Cat’, and ‘Bird’) • _ _age (for the pet’s age) The Pet class should have an _ _init_ _ method that creates these attributes. It should also have the following methods: • set_name This method assigns a value to the _ _name field. • set_animal_type This method assigns a value to the _ _animal_type field. • set_age This method assigns a value to the _ _age field. • get_name This method returns the value of the _ _ name field. • get_animal_type This method returns the value of the _ _animal_type field. • get_age This method returns the value of the _ _age field. Once you have written the class, write a program that creates an object of the class and prompts the user to enter the name, type, and age of his or her pet. This data should be stored as the object’s…arrow_forward
- C# languageWrite a program to create a class employee, it consist of ID, name, department and address. All employees belongs to “Computer Science” department and it can never be changed by any means. Employee ID is initialized only once when Employee object is created, any further attempt to change ID should be failed. Class must have a 3 parameterized constructor to set values and two methods: print(): to display all the data of a particular employee totalObjects(): to count and print total number of objects that has been created In Main(), create atleast two objects of employee class, display their records by calling print() function and also print the total number of objects that has been created. [this question is continued on next page] Sample Main Method: static void Main(string[] args) { Employee obj1 = new Employee(1, "Zubair", "Karachi"); obj1.print(); Employee obj2 = new Employee(2, "Nabeel", "Islamabad"); obj2.print();…arrow_forwardShiftSupervisor Class In a particular factory, a shift supervisor is a salaried employee who supervises a shift. In addition to a salary, the shift supervisor earns a yearly bonus when his or her shift meets production goals. Design a ShiftSupervisor class that extends the Employee class you created in Problem 1, The ShiftSupervisor class should have a field that holds the annual salary and a field that holds the annual production bonus that a shift supervisor has earned. Write one or more constructors and the appropriate accessor and mutator methods for the class. Demonstrate the class by writing a program that uses a ShiftSupervisor object. beginner code because this is an intro to java class.arrow_forwardData Structuresarrow_forward
- Programming Language = Python 1. Employee and ProductionWorker Classes Write an Employee class that keeps data attributes for the following pieces of information: • Employee name • Employee number Next, write a class named ProductionWorker that is a subclass of the Employee class. The ProductionWorker class should keep data attributes for the following information: • Shift number (an integer, such as 1, 2, or 3) • Hourly pay rate The workday is divided into two shifts: day and night. The shift attribute will hold an integer value representing the shift that the employee works. The day shift is shift 1 and the night shift is shift 2. Write the appropriate accessor and mutator methods for each class. Once you have written the classes, write a program that creates an object of the ProductionWorker class and prompts the user to enter data for each of the object’s data attributes. Store the data in the object and then use the object’s accessor methods to retrieve it and display it on the…arrow_forward1. Employee and ProductionWorker Classes Write an Employee class that keeps data attributes for the following pieces of information: Employee name Employee number Next, write a class named ProductionWorker that is a subclass of the Employee class. The ProductionWorker class should keep data attributes for the following information: Shift number (an integer, such as 1, 2, or 3) Hourly pay rate The workday is divided into two shifts: day and night. The shift attribute will hold an integer value representing the shift that the employee works. The day shift is shift 1 and the night shift is shift 2. Write the appropriate accessor and mutator methods for each class. Once you have written the classes, write a program that creates an object of the ProductionWorker class and prompts the user to enter data for each of the object’s data attributes. Store the data in the object, then use the object’s accessor methods to retrieve it and display it on the screen. 2. ShiftSupervisor Class In a…arrow_forwardThere are two types of data members in a class: static and non-static. Provide an example of when it might be useful to have a static data member in the actual world.arrow_forward
- Parking Ticket SimulatorFor this assignment you will design a set of classes that work together to simulate apolice officer issuing a parking ticket. The classes you should design are:• The Parkedcar Class: This class should simulate a parked car. The class's respon-sibilities are:To know the car's make, model, color, license number, and the number of min-utes that the car has been parkedThe BarkingMeter Class: This class should simulate a parking meter. The class'sonly responsibility is:- To know the number of minutes of parking time that has been purchased• The ParkingTicket Class: This class should simulate a parking ticket. The class'sresponsibilities areTo report the make, model, color, and license number of the illegally parked carTo report the amount of the fine, which is $2S for the first hour or part of anhour that the car is illegally parked, plus $10 for every additional hour or part ofan hour that the car is illegally parkedTo report the name and badge number of the police…arrow_forwardUser-defined Class: You will design and implement your own data class. The class will store data that has been read as user input from the keyboard (see Getting Input below), and provide necessary operations. As the data stored relates to monetary change, the class should be named MoneyChange. The class requires at least 2 instance variables for the name of a person and the coin change amount to be given to that person. You may also wish to use 6 instance variables to represent amounts for each of the 6 coin denominations (see Client Class below). There should be no need for more than these instance variables. However, if you wish to use more instance variables, you must provide a legitimate justification for their usage in the internal and external documentation.Your class will need to have at least a default constructor, and a constructor with two parameters:one parameter being a name and the other a coin amount. Your class should also provide appropriate get and set methods for…arrow_forwardplease fastarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
Systems ArchitectureComputer ScienceISBN:9781305080195Author:Stephen D. BurdPublisher:Cengage Learning
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,
Systems Architecture
Computer Science
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Cengage Learning
Introduction to Classes and Objects - Part 1 (Data Structures & Algorithms #3); Author: CS Dojo;https://www.youtube.com/watch?v=8yjkWGRlUmY;License: Standard YouTube License, CC-BY