What is the reason for including the following code snippet in the header file Car.h? #ifndef CAR_H #define CAR_H class Car { public: Car(); Car (double speed); void start(); void accelerate (double speed); void stop(); double get_speed() const; private: double speed1; }; #endif To provide the implementation of the Car class To define the interface for the Car class To expose implementation details of the Car class to programmers of other classes To make it possible for other programmers to use Car objects in an aggregation

What is the reason for including the following code snippet in the header file Car.h? #ifndef CAR_H #define CAR_H class Car { public: Car(); Car (double speed); void start(); void accelerate (double speed); void stop(); double get_speed() const; private: double speed1; }; #endif To provide the implementation of the Car class To define the interface for the Car class To expose implementation details of the Car class to programmers of other classes To make it possible for other programmers to use Car objects in an aggregation

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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Object oriented programming C++ Use Classes Write a C++ program in which each flight is required to have a date of departure, a time of departure, a date of arrival and a time of arrival. Furthermore, each flight has a unique flight ID and the information whether the flight is direct or not.Create a C++ class to model a flight. (Note: Make separate classes for Date and Time and use composition).add two integer data members to the Flight class, one to store the total number of seats in the flight and the other to store the number of seats that have been reserved. Provide all standard functions in each of the Date, Time and Flight classes (Constructors, set/get methods and display methods etc.).Add a member function delayFlight(int) in the Flight class to delay the flight by the number of minutes pass as input to this function. (For simplicity, assume that delaying a flight will not change the Date). Add a member function reserveSeat(int) which reserves the number of seats passed as…
Programming Exercise 11-2 dateType.h file provided #ifndef date_H #define date_H class dateType { public: void setDate(int month, int day, int year); //Function to set the date. //The member variables dMonth, dDay, and dYear are set //according to the parameters //Postcondition: dMonth = month; dDay = day; // dYear = year int getDay() const; //Function to return the day. //Postcondition: The value of dDay is returned. int getMonth() const; //Function to return the month. //Postcondition: The value of dMonth is returned. int getYear() const; //Function to return the year. //Postcondition: The value of dYear is returned. void printDate() const; //Function to output the date in the form mm-dd-yyyy. bool isLeapYear(); //Function to determine whether the year is a leap year. dateType(int month = 1, int day = 1, int year = 1900); //Constructor to…
True or false ? Assuming class Quiz { public: void TakeIt ( ); }; Quiz cs2b_quiz; Quiz * p_quiz = & cs2b_quiz; The syntax to invoke TakeIt ( ) member function using the pointer is: p_quiz->TakeIt ( );
C# languageCreate a class for “Plane” having functionalities (methods) startengine(), fly() and land(). When ever engine starts it should reset the attribute TTK (Total travel kilometer) to zero and attribute Fuel to 100. On fly() it should add 10 kilometers if the Fuel attribute is greater than zero and decrement Fuel by 20.On land() it should print total distance covered. Write the code providing all necessary details. And then show working object of Plane in main().
class Airplane – highlights -- planeID : String -planeModel: String //”Boeing 757” etc. --seatCapacity : int //would vary by outfitting ………… Assume getters and setters, toString(), constructor with parameters and constructor ……………… Write lambdas using a standard functional interface to: a) Given a plane object and a required number of seats as an input, determine if the given plane meets or exceeds the required capacity b) Output the plane description if capacity is less than 80% of a specified number (We would use his for planning aircraft assigned to various routes. ) c) Adjust the seats in a plane by a specified positive or negative number [after modifications have been made to the interior.] …and write an example for each showing the usage, using an Airplane instance plane1
C:/Users/r1821655/CLionProjects/untitled/sequence.cpp:48:5: error: return type specification for constructor invalidtemplate <class Item>class sequence{public:// TYPEDEFS and MEMBER SP2020typedef Item value_type;typedef std::size_t size_type;static const size_type CAPACITY = 10;// CONSTRUCTORsequence();// MODIFICATION MEMBER FUNCTIONSvoid start();void end();void advance();void move_back();void add(const value_type& entry);void remove_current();// CONSTANT MEMBER FUNCTIONSsize_type size() const;bool is_item() const;value_type current() const;private:value_type data[CAPACITY];size_type used;size_type current_index;};} 48 | void sequence<Item>::sequence() : used(0), current_index(0) { } | ^~~~ line 47 template<class Item> line 48 void sequence<Item>::sequence() : used(0), current_index(0) { }
class IndexItem { public: virtual int count() = 0; virtual void display()= 0; };class Book : public IndexItem { private: string title; string author; public: Book(string title, string author): title(title), author(author){} virtual int count(){ return 1; } virtual void display(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };class Category: public IndexItem { private: /* fill in the private member variables for the Category class below */ ? int count; public: Category(string name, string code): name(name), code(code){} /* Implement the count function below. Consider the use of the function as depicted in main() */ ? /* Implement the add function which fills the category with contents below. Consider the use of the function as depicted in main() */ ? virtualvoiddisplay(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };
#include #include #include #include using namespace std; class AttackInfo{ public: }; int dmg; string description; AttackInfo() AttackInfo(int a, string b){ dmg = a; description = b; class BaseCharacter{ private: } string name; int maxHP,presentHP,dodgeChance; public: int strength, agility,intelligence, baseDamage; public: BaseCharacter() { BaseCharacter(string a, int b, int c, int d, int e, int f, int g){ name = a; strength = b; agility = c; intelligence = d; maxHP = e; presentHP = maxHP; dodgeChance = f; baseDamage=g; } AttackInfo primaryAttack(){ return AttackInfo(baseDamage,"strikes at"); } at"); AttackInfo secondaryAttack(){ return AttackInfo(baseDamage,""); } } void takeDamage(int a){} string toString(){ return "Name: "+getName()+"Max HP: "+to_string(getMaxHp())+" Present HP: "+to_string(getPresentHP())+"Dodge Chance: "+to_string(get DodgeChance()); } }; AttackInfo getAttack(){ return primaryAttack(); }; class Warrior: public BaseCharacter{ private: string getName(){return name;}…
class displayClass{public:void print();...private:int listLength;int *list;double salary;string name;} Write the definition of the function to overload the assignment operator for the class displayClass.
Chapter 15 Customer Employee Creator Create an object-oriented program that allows you to enter data for customers and employees. Each class will be stored in its own python file. Console Specifications Create a Person class that provides attributes for first name, last name, and email address. Include a parameter for each attribute in the constructor method. This class will provide a property or method that returns the person’s full name. Create a Customer class that inherits the Person class. This class must add an attribute for a customer Create an Employee class that inherits the Person class. This class must add an attribute for a social security number (SSN). Put the above three classes in a module named ‘company_objects’, separate from the application module. The program will create a Customer or Employee object from the data entered by the user and store the object in a single variable. Create a function that will display the Customer or Employee. The function will have a…
Programming 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…
Programming 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…