Answered: Assume rectangle class has a friend…

Engineering

Computer Science

Assume rectangle class has a friend function called "getArea(rectangle)". void main() rectangle rectObj; cout<

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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#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.
Write Album's PrintSongsLongerThan() member function to print all the songs from the album whose duration is longer than the value of the parameter songDuration. Use Song's PrintSong() member function to print a song. 34 35 void Album::InputSongs() { Song currSong; int currDuration; string currName; 36 37 38 39 40 cin >> currDuration; while (currDuration >= 41 0) { 42 getline(cin, currName); currSong. SetDurationAndName(currDuration, currName); albumSongs.push_back(currSong); cin >> currDuration; } 43 44 45 46 47 } 48 49 void Album::PrintSongsLongerThan(int songDuration) const { unsigned int i; Song currSong; 50 51 52 53 cout <« "Songs longer than " « songDuration <« " seconds:" << endl; 54 55 } 56 57 int main) { Album musicAlbum; string albumName ; 58 59 60 61 getline(cin, albumName); musicAlbum.SetName(albumName); musicAlbum.InputSongs(); musicAlbum.PrintName(); 62 63 64 65 musicAlbum. PrintSongsLongerThan(210); 66 67 return 0; 68 }
C++ Code, Function below is a member function of Sequence class: template <class T> T& Sequence <T> ::entry(int pos) { if (pos < 0 || pos >= size) { cout << "Invalid, please check!\n"; T x; return x; } NodeRecord* current = head; for (int a = 0; a < pos; a++) { current = current->next; } return current->value; }// END entry For the function above, a. Draw the code diagrams with labels for statements and branches. b. Provide test cases for statement, branch, and path coverages (properly identifying all the test cases with correct labels and the respective function).
need help with some JavaScript "use strict"; /* New Perspectives on HTML5, CSS3, and JavaScript 6th Edition Tutorial 14 Case Problem 2 Filename: cc_staff.js */ /* Constructor function for the employee class */ function employee(id, firstName, lastName, dept, position, email, phone, photo) { this.id = id; this.firstName = firstName; this.lastName = lastName; this.dept = dept; this.position = position; this.email = email; this.phone = phone; this.photo = photo; } /* Object literal for search results */ var searchResult = { employees : [], sortById : function() { this.employees.sort(function(a,b) { if (a.id < b.id) {return -1;} else {return 1;} }); } }; /* Event listener to retrieve and display employee records matching the search condition */ document.getElementById("searchButton").addEventListener("click", function() { var tableBody = document.querySelector("table#staffTable tbody"); var…
In C++ Please: The class and functions need to be on an .h file while the main needs to be small and on a seperate .cpp file. Create a class AccessPoint with the following attributes: x - a double representing the x coordinate y - a double representing the y coordinate range - an integer representing the coverage radius status - On or Off Add constructors. The default constructor should create an access point object at position (0.0, 0.0), coverage radius 0, and Off. Add accessor and mutator functions: getX, getY, getRange, getStatus, setX, setY, setRange and setStatus. Also, add a set function that sets the location coordinates and the range. Add the following member functions: move and coverageArea. Add a function overlap that checks if two access points overlap their coverage and returns true if they overlap. Add a function signalStrength that returns the wireless signal strength as a percentage. The signal strength decreases as one moves away from the access point location. Test…
#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.
briefly explain this code #include<iostream>#include<string.h> using namespace std; class bank_account{int acno;char nm[100], acctype[100];float bal;public:bank_account(int acc_no, char *name, char *acc_type, float balance){acno=acc_no;strcpy(nm, name);strcpy(acctype, acc_type);bal=balance;}void deposit();void withdraw();void display();};void bank_account::deposit(){int damt1;cout<<"\n Enter Deposit Amount = ";cin>>damt1;bal+=damt1;}void bank_account::withdraw(){int wamt1;cout<<"\n Enter Withdraw Amount = ";cin>>wamt1;if(wamt1>bal)cout<<"\n Cannot Withdraw Amount";bal-=wamt1;}void bank_account::display(){cout<<"\n Name : "<<nm;cout<<"\n Account Type : "<<acctype;cout<<"\n Balance : "<<bal;}int main(){int acc_no;char name[100], acc_type[100];float balance;cout<<"\n Name : ";cin>>name;cout<<"\n Account Type : ";cin>>acc_type;cout<<"\n Balance : ";cin>>balance;bank_account…
Assume that t is an object of class Test, which has member functions a(), b(), c() and d(). If the functions a(), b() and c() all return references to an object of class Test (using the dereferenced this pointer) and function d() returns void, which of the following statements will not produce a syntax error: Select one: O a. ta().t.d(0: O b. a0.b().t: O . t.a(0.b0.d0: O d. t.d0.c):
Given a template class named indexList, the prototype of one of its member function is as follows: bool replace (int index, const T &item); When implementing, what is the prototype (the first two lines only) of the replace function? The body of the function is not needed. A B I EE % $5 3
Choose the correct option If private member functions are to be declared in C++ then _____________a) private: <all private members>b) private <member name>c) private(private member list)d) private :- <private members>
code rectangel #include <iostream> using namespace std; class Rectangle{ private: double width; double length; static int numberOfObjects; public: Rectangle(); Rectangle(double , double); ~Rectangle(){cout<<"Destructor called "<<endl;} static void printNumberOfObjects(){ cout<<"number of objects: "<<endl;} void setDimention(double, double); double getWidth(); double getLength(); double getArea(); void printRectangle() const ; double getPerimeter(); }; int Rectangle::numberOfObjects=0; Rectangle::Rectangle(){ /*width = 0; length = 0;*/ cout<<"Default constructor called"<<endl; setDimention(0,0); numberOfObjects++; } Rectangle::Rectangle(double w, double l){ /* if(w>=0)// validation on the input width= w; else width=0; if(l>=0) length = l; else length= 0;*/ cout<<"constructor with parameters called"<<endl; setDimention(w,l); numberOfObjects++; } void Rectangle::setDimention(double W, double L){ if(W>=0)// validation on the…