Concept explainers
class Point {
private:
int xCoord; int yCoord;
public:
Point (int x, int y)
{ xCoord = x; yCoord = y: }
// Overloaded + operator void operator+(const &Point right) { xCoord += right . xCoord; yCoord += right . yCoord;
}
... Other member functions follow...
};
Want to see the full answer?
Check out a sample textbook solutionChapter 14 Solutions
MyProgrammingLab - For Gaddis: Starting Out with C++ From Control Structures through Objects
Additional Engineering Textbook Solutions
Introduction To Programming Using Visual Basic (11th Edition)
Concepts Of Programming Languages
Programming in C
Artificial Intelligence: A Modern Approach
Modern Database Management (12th Edition)
C How to Program (8th Edition)
- Public members of a base class can be accessed by anything from outside the base class. Private members can be accessed only by the base class and derived classes. Protected members can be accessed by the base class and any of its descendants (child class or child of a child class). answer choices True Falsearrow_forwardA class is made abstract by declaring that class virtual. T/Farrow_forwardC++ Language Please Write a program that implements four classes: NPC, Flying, Walking, and Generic for a fantasy roleplaying game. Each class should have the following attributes and methods: NPC -a parent class that defines methods and an attribute common to all non-player characters (npc) in the game. a private string variable named name, for storing the name of the npc. a default constructor for setting name to "placeholder". an overloaded constructor that sets name to a string argument passed to it. setName - a mutator for updating the name attribute getName - an accessor for returning the npc name printStats - a pure virtual function that will be overridden by each NPC subclass. Flying - a subclass of NPC that defines a flying npc in the game a private int variable named flightSpeed for tracking the speed of the npc. a default constructor for setting flightSpeed to 0 and name to "Flying" using setName. setFlightSpeed - a mutator that accepts an integer as it's only argument…arrow_forward
- Create a class Animal and Add a protected data member named id of integer type. Add get/set methods for id data member in Animal class with public access. Also provide default constructor this should initialize id to 0. Also provide parameterized constructor and toString method. Add an abstract method tellAboutSelf method to Animal class with public access Add another abstract method speak method to Animal class. Reptile, Bird, Mammal Next create the three child classes which extends form Animal class. Add a default constructor to each of the above created class. The constructor should initialize the id data member id, Reptile, Bird and Mammal, to 1, 2 and 3 respectively also it display a message “(class Name)’s default constructor”. E.g. for Bird it says “Bird’s default constructor”. Add a parameterized constructor to each of the above created class. The constructor should initialize the id data member, Reptile, Bird and Mammal, to the specified id passed to the constructor also it…arrow_forwardDefine access private member of a classarrow_forwardA constructor that takes a single parameter of a type different from the class type is a_________ constructor.arrow_forward
- language: Java Class Inheritance with an abstract class Define a class Employee with the following fields: _name, _empId, _department, _position (_title), _yearlySalary, _fullTime (a boolean: true/false) , _month , _year (time of hire) Add constructor and properties Define an abstract method GetBiMonthlySalary() (if the employee is paid twice a month) Define an abstract method GetVacationTime() that returns the number of vacation time this employee would have based on time of hire Override the ToString() method to return a string that contains the information pertaining to an employee such as name, empId, department, and where full time or not. Define a class HourlyEmployee that inherits from Employee. This class should have 2 fields of its own: _hours (hours worked in half a month) and _wage (hourly wage) Provide necessary constructor, properties and methods Override the ToString() to also return the additional fields Gets 3 days of vacation after first year if the…arrow_forwardA(n) __________ is a method that appears in a base class but expects to be overridden in a derived class. a. abstract method b. virtual method c. concrete method d. base methodarrow_forwardA Person has a name (just a first name for simplicity) and friends. Store the names of the friends in a string, separated by spaces. Provide a constructor that constructs a person with a given name and no friends. Provide member functions. c++ void befriend(Person p) void unfriend(Person p) string get_friend_names()arrow_forward
- Declare classes Person and Student where Student is derived from Person class. Person has Name and Student has RollNo as its private member. Create a Student class object and initialize it with the already existing object of Student class. Analyze the behavior of default constructors of Person and Student classes. Note: use OOP Concepts with C++ language Solve as soon as possiblearrow_forwardTrue or False: In order to derive class A from class B, class A must contain a public member function that may be called by the rest of the class. (It is not a half-finished project.) A) This is correct. B) The answer is False.arrow_forwardwrite a class Point with parametrized constructor. This class have four member variables, a,b,c,d. Write the following member functions a. drawTriangle(int x, int y, int z ) b. drawRectangle(int x, int y, int z, int a). Each function should display the length of lines for each of the shape (triangle, rectangle). For example triangle should calculate length of its three lines by following methods as shown in code. Note: the number of lines depends on the name of shape. void drawTriangle(int x, int y, int z ) { int line 1 = x - y; // convert to positive value if line length is negative int line 2 = y -z; int line 3 = z -x; cout<< The length of each lines is: << //// here display length of each line with proper formatting. } Write similar code for drawRectangle(int x, int y, int z, int a). Wtite main function to call these three functionarrow_forward
- Programming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:Cengage