Create a Program to Create Friends Finding System in C++ Assignment Solution

Instructions

Objective

Write a C++ assignment program to create friends finding system.

Requirements and Specifications

Source Code

FRIEND FINDER

#include "FriendFinder.h" FriendFinder::FriendFinder() { // default cosntructor } void FriendFinder::GetDetails() { string first_name, last_name; int age, id; cout << "What is your first name? "; getline(cin, first_name); cout << "What is your last name? "; getline(cin, last_name); bool valid_input = false; // user a while loop here in case the user enters an invalid value while (!valid_input) { cout << "What is your age? "; cin >> age; if (age > 0) valid_input = true; } cin.ignore(); valid_input = false; // user a while loop here in case the user enters an invalid value while (!valid_input) { cout << "What is your ID? "; cin >> id; if (id > 0) valid_input = true; } cin.ignore(); // Now, update person m_me.SetDetails(first_name, last_name, age, id); } void FriendFinder::DisplayMenu(int &choice) { bool valid_input = false; // use a while loop so program keeps asking to user until he/she enters a valid value while (!valid_input) { // Function to display main menu cout << "1. Display Entire Organization" << endl; cout << "2. Display Friend List" << endl; cout << "3. Search for a Friend" << endl; cout << "4. Remove Friend" << endl; cout << "5. Exit" << endl; cin >> choice; if (choice >= 1 && choice <= 5) valid_input = true; } } void FriendFinder::Start() { // First, create the person GetDetails(); // build orgaization m_organization.SetName(); m_organization.LoadRoster(); int choice; bool running = true; // true until player enters the "Exit" option cout << "************************" << endl; cout << " Welcome to " << m_organization.GetName() << " Friend Finder" << endl; cout << "************************" << endl; cout << endl; int user_input; while (running) { DisplayMenu(choice); if (choice == 1) // Display Entire Organization { m_me.DisplayDetails(); cout << endl; } else if (choice == 2) // Display Friend List { m_me.DisplayFriends(); } else if (choice == 3) // search for a friend { m_organization.DisplayRoster(); Person* person = m_organization.GetPerson(); if (person != NULL) { m_me.AddFriend(person); } } else if (choice == 4) // Remove Friend { // First, display friends m_me.DisplayFriends(); if (m_me.GetFriendsCount() > 0) { bool valid_input = false; while (!valid_input) { cout << "Who would you like to remove? "; cin >> user_input; if (user_input >= 1 && user_input <= m_me.GetFriendsCount()) { // Get Friend Person* p = m_me.GetFriends()[user_input]; m_me.RemoveFriend(p); } else cout << "There is no person in your Friends List with that index." << endl; } } } else if (choice == 5) running = false; } // program ended. Show farewell message cout << "Thank you for using " << m_organization.GetName() << " Friend Finder!" << endl; }

ORGANIZATION

#include "Organization.h" Organization::Organization() { // default constructor m_numRoster = 0; } void Organization::SetName() { // ask user for organization name cout << "What is the name of your organization? "; getline(cin, m_name); } void Organization::LoadRoster() { // ask user for file name cout << "Please enter file name: "; getline(cin, m_fileName); // Now, read file // First, read the input file ifstream input_file; input_file.open(m_fileName, ios::in); // get data string line; size_t found; string first_name, last_name; int age, ID; while (getline(input_file, line)) { //cout << line << endl; // split line so we get each field // each line has only 4 fields found = line.find(","); first_name = line.substr(0, found); line = line.substr(found + 1, line.length()); found = line.find(","); last_name = line.substr(0, found); line = line.substr(found + 1, line.length()); found = line.find(","); age = stoi(line.substr(0, found)); line = line.substr(found + 1, line.length()); ID = stoi(line); // Build person Person p(first_name, last_name, age, ID); // add person to roster m_roster[m_numRoster] = p; m_numRoster++; } input_file.close(); cout << m_numRoster << " people loaded into the roster" << endl; } void Organization::DisplayRoster() { // check if there is people in roster cout << "*****" << GetName() << "*****" << endl; if (m_numRoster > 0) { // display all people in roster int count = 1; for (int i = 0; i < m_numRoster; i++) { cout << count << ". " << m_roster[i] << endl; count++; } } else cout << "There is no people in the organization." << endl; } Person* Organization::GetPerson() { DisplayRoster(); // check if m_roster is populated if (m_numRoster > 0) { // now, ask number of person int index; cout << "Who would you like to friend?" << endl; while (true) { cin >> index; if (index >= 1 && index <= m_numRoster) // valid { Person* p = (m_roster + index-1); return p; } } } else return NULL; // return null }

PERSON

#include "Person.h" Person::Person() { // constructor without parameters m_friendCount = 0; } Person::Person(string first_name, string last_name, int age, int ID) { m_friendCount = 0; m_fName = first_name; m_lName = last_name; m_age = age; m_ID = ID; } void Person::AddFriend(Person* person) { m_friends[m_friendCount] = person; m_friendCount++; cout << "You are now friends with " << person->m_fName << "!" << endl; } void Person::RemoveFriend(Person* person) { // First, iterate through array to check if the person exists for (int i = 0; i < m_friendCount; i++) { Person *p = m_friends[i]; if (p->m_ID == person->m_ID) { // Iterate from element i to the end and move the remaining elements in the array to the left for (int j = i + 1; j < m_friendCount; j++) { m_friends[i] = m_friends[j]; } // remove the last element from the array m_friendCount--; break; } } } bool Person::CheckID(int id) { for (int i = 0; i < m_friendCount; i++) { if (m_friends[i]->m_ID== id) { return true; } } return false; } void Person::DisplayFriends() { if (m_friendCount < 1) cout << "You don't have any friends yet" << endl; else if (m_friendCount <= 10) { cout << "Friend List for " << m_fName << endl; int count = 1; for (int i = 0; i < m_friendCount; i++) { Person p =*m_friends[i]; cout << count << ". " << p << endl; count++; } } else if (m_friendCount > 10) // display only the first 4 and last 4 { cout << "Friend List for " << m_fName << endl; int count = 1; for (int i = 0; i < 4; i++) { Person p = *m_friends[i]; cout << count << ". " << p << endl; count++; } cout << ".\n.\n.\n"; count = m_friendCount - 4; for (int i = m_friendCount - 4; i < m_friendCount; i++) { Person p = *m_friends[i]; cout << count << ". " << p << endl; count++; } } } void Person::DisplayDetails() { cout << "You are: " << m_fName << " " << m_lName << " (" << m_age << " yrs) " << m_ID << endl; } void Person::SetDetails(string first_name, string last_name, int age, int id) { m_fName = first_name; m_lName = last_name; m_age = age; m_ID = id; }