Question

PLEASE HELP ASAP

Object Relationship In Module 6 Object Relationship, we have learned to construct relationships between objects use proper C++ syntax. Here are two different Object Relationship the Car class is relating to two other objects Composition: CarEngine Aggregation: Car<-Passenger(s) To be precise, here is the illustration in UML representation Engine Car Composition: every car has an engine Car Passengers Aggregation: cars may have passengers, they come and go Below is the Class Definition without embedding the above relationships, please make the necessary update to show to allow the relationship to work properly class Passenger{ std::string name; public: Passenger(std::string n) name(n) std::string getNameO return name; 3; class Car Engine model; Passenger name; public: Car): Engine(model), Passenger(name) bool addPassenger(name); 3; Please make the necessary adjustment to the proper data types for both classes to support the Relationship of aggregation. For addPassenger method, do not write the program, but to provide a description on what it does

Answer 1

#include <iostream>
#include <string>
#include <vector>
using namespace std;

class Passenger
{
   string name;
public:
   Passenger(string n) : name(n) {}
   string getName() { return name; }
};

class Car
{
   Engine model;
   vector<Passenger> passengers;
public:
   Car(Engine engine, vector<Passenger> pass) : Engine(engine), passengers(pass) {}
   bool addPassenger(name);
};

* Relationship between the class Car and Passenger is an aggregation, means, a Car may or may not have passengers(s) in it. So, a vector of type Passenger
is used to depict this relationship. Passengers may come or go can be implemented by adding or removing Passengers from the vector.

** bool addPassenger(name) --> This method adds a Passenger to the passenger list (here, vector). It takes the name of the passenger as input, creates an instance of a Passenger and adds it to the list and returns TRUE/FALSE whether the insertion operation is a success.