#include using namespace std; class Player { private: int id; static int next_id; public: int getID() { return id; } Player() { id = next_id++; } }; int Player::next_id = 1; int main() { Player p1; Player p2; Player p3; cout << p1.getID() << " "; cout << p2.getID() << " "; cout << p3.getID(); return 0; } Run the program and give its output.

#include using namespace std; class Player { private: int id; static int next_id; public: int getID() { return id; } Player() { id = next_id++; } }; int Player::next_id = 1; int main() { Player p1; Player p2; Player p3; cout << p1.getID() << " "; cout << p2.getID() << " "; cout << p3.getID(); return 0; } Run the program and give its output.

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

See similar textbooks

Similar questions

Network Class The Network class represents a network of people that are connected to each other and are able to contact and send messages to each other through the network. Create a Network class with the following: Member Variables A Network has just one private member variable: phonebook_ - a std::map which maps from a std::string for a person's name, to the std::shared_ptr<Phone> object that belongs to that person. Constructor You do not need to explicitly define a constructor. The default constructor will implicitly be created for us by the compiler, initializing the phonebook_ to an empty map. AddPhone Create a function AddPhone that accepts a std::shared_ptr to a Phone and inserts that Phone to the phonebook_. The key is the name of that phone's owner, and the value is the shared pointer to the Phone. SendMessage Create a function SendMessage that accepts a std::shared_ptr to a Message and a const reference to a std::string representing the intended recipient of this…
#include <iostream> using namespace std; class Creature { public: Creature(); void run() const; protected: int distance;}; Creature::Creature(): distance(10){} void Creature::run() const{ cout << "running " << distance << " meters!\n";} class Wizard : public Creature { public: Wizard(); void hover() const; private: int distFactor;}; Wizard::Wizard() : distFactor(3){} void Wizard::hover() const{ cout << "hovering " << (distFactor * distance) << " meters!\n";} int main(){ cout << "Creating an Creature.\n"; Creature c; c.run(); cout << "\nCreating a Wizard.\n"; Wizard w; w.run(); w.hover(); return 0;} Reorganize your previous file’s (creature.cpp) content into three parts: declaration, imple-mentation of the classes and your test program. Name the files Creature.h,Creature.cpp and testcreature.cpp.
Date class to use: #ifndef DATE_H_ #define DATE_H_ #include <iostream> #include <iomanip> using namespace std; class Date { friend ostream &operator<<( ostream &, const Date & ); private: int day; int month; int year; static const int days[]; // array of days per month void helpIncrement(); // utility function for incrementing date public: Date(int=1, int=1, int=0); void setDate(int,int,int); bool leapYear( int ) const; // is date in a leap year? bool endOfMonth( int ) const; // is date at the end of month? Date &operator++(); // prefix increment operator Date operator++( int ); // postfix increment operator const Date &operator+=( int ); // add days, modify object bool operator<(const Date&) const; void showdate(); }; const int Date::days[] = { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }; Date::Date(int d, int m, int y) { day = d; month = m; year = y; // initialize static member at file scope; one classwide copy } // set month,…
How this code can be done without #define STOCK 5 #include <iostream>#include<iomanip>#define STOCKS 5using namespace std; class receipt {private:string name; double price [STOCKS];public:receipt( ){for(int i=0;i<STOCKS;i++)price[i]=0;}receipt(string name, double s[] ){this->name = name;int size=sizeof(s)/sizeof(int);for(int i=0;i<STOCKS;i++)this->price[i]=s[i];} void setStocks(int i, double pr) {price[i]=pr;}double getStocks(int i) {return price[i];} void show (){cout<<"Magazin: "<<name<<endl;for(int i=0; i<STOCKS;i++)cout<<"Product #"<<i+1<<" "<<fixed<<setprecision(2)<<price[i]<<": lev"<<endl;cout<<endl;}double total() {double total=0;for(int i=0; i<STOCKS;i++)total+=price[i];return total;} void remove(int i){for(int t=i;t<STOCKS;t++)price[t]=price[t+1];}void discount(int i,double per){price[i]+=-price[i]*per*0.01;}}; int main (){double pr[]={10.20, 13.40, 15.10, 16.20, 40.50…
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
Take the following code: class Song { private: string name; string author; string genre; int year_released; public: Song() { /* initialize attributes */} string get_name() { return name; } void set_name(string new_name) { name = new_name; } string get_author() { return author; } void set_author(string new_author) { author = new_author; } int get_age(int curr_year) { return curr_year - year_released; } void set_year_released(int new_year) { year_released = new_year ; } }; indicate the setters of this class. Edit View Insert Format Tools Table 12pt v Paragraph v B IUA
C++
#include <iostream> using namespace std; class Player { private: int id; static int next_id; public: int getID() { return id; } Player() { id = next_id++; } }; int Player::next_id = 1; int main() { Player p1; Player p2; Player p3; cout << p1.getID() << " "; cout << p2.getID() << " "; cout << p3.getID(); return 0; } Run the program and give its output.
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; error: expected initializer before 'sequence' 125 | sequence<Item>value_type sequence ::current() const { | ^~~~~~~~
Vigenere.h #include<string>using namespace std;//Create class Vigenereclass Vigenere {//Membersprivate:string key;//Functionspublic://ConstructorVigenere();//Setter and gettervoid setKey(string key);string getKey();//Convert into upper casestring toUpperCase(string k);//Encryptstring encrypt(string word);//Decryptstring decrypt(string word);}; Vigenere.cpp //Implementation#include "Vigenere.h"//ConstructorVigenere::Vigenere() { this->key = "";}//Setter and gettervoid Vigenere::setKey(string key) { this->key = key;}string Vigenere::getKey() { return key;}//Convert into upper casestring Vigenere::toUpperCase(string k) { for (int i = 0; i < k.length(); i++) { if (isalpha(k[i])) { k[i] = toupper(k[i]); } } return k;}//Encryptstring Vigenere::encrypt(string word) { return key; string output = ""; for (int i = 0, j = 0; i < word.length(); i++) { char c = word[i]; if (c >= 'a' && c <= 'z') { c += 'A'…
#include <algorithm> #include <iostream> #include <string> #include <vector> using namespace std; class Hotel { public: string name; int roomAvl; string location; int rating; int pricePr; }; class User : public Hotel { public: string uname; int uId; int cost; }; bool sortByIsb(Hotel& A, Hotel& B) { return A.name > B.name; } bool sortByr(Hotel& A, Hotel& B) { return A.rating > B.rating; } bool sortByRoomAvalable(Hotel& A, Hotel& B) { return A.roomAvl < B.roomAvl; } void PrintHotelData(vector<Hotel> hotels) { cout << "PRINT HOTELS DATA:" << endl; cout << "HotelName"<< " "<< "Room Avalable"<< " "<< "Location"<< " "<< "Rating"<< " "<< "PricePer Room:" << endl; for (int i = 0; i < 3; i++) { cout << hotels[i].name << " "<< hotels[i].roomAvl << " "<< hotels[i].location << " "<< hotels[i].rating << " "<<…
#include <iostream> #include <iomanip> double double showMenu(); double takePurchase(double); double takePayment(); double takePayment(); void displayInfo(double, double); double showMenu() {} double takePayment() { double takePurchase() { } double takePurchase (double) { } double takePurchase(double price) { } double takePayment() {} displayInfo (double purchase, double payment) void displayInfo (double purchase, double payment){} int quantity; return (price * quantity);