Composition

[goldenchild731]

Here is the code:

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

class Engine
	{
		//attributes
	private:
		int size;
		int cyclinders;

		//constructors
	public:
		Engine();
		Engine(int size, int cyclinders);

		//behaviors
		//NONE

		//properties(or Get Set methods)
		int getSize();
		void setSize(int value);
		int getCyclinders();
		void setCyclinders(int value);
	};


	Engine::Engine()
	{
		size = 0;
		cyclinders = 0;
	}

	Engine::Engine(int size, int cyclinders)
	{
		// set given values to the object
		this->size = size;
		this->cyclinders = cyclinders;
	}

	int Engine::getSize()
	{
		return size;
	}

	void Engine::setSize(int value)
	{
		size = value;
	}

	int Engine::getCyclinders()
	{
		return cyclinders;
	}

	void Engine::setCyclinders(int value)
	{
		cyclinders = value;
	}
//.h file code:



	class RaceCar
	{
		//attributes
	public:
		std::string name;
		Engine *carEngine;

		//constructors
	public:
		RaceCar();

		RaceCar(std::string name, Engine *carEngine);
		RaceCar(std::string name, int size, int cyclinders);

		//behaviors
		//NONE

		//properties(or Get Set methods)
		std::string getName();
		void setName(std::string value);
		Engine *getCarEngine();
		void setCarEngine(Engine *value);
	};

//.cpp file code:

RaceCar::RaceCar()
{
	//set default values
	name = "unknown";
	carEngine = new Engine();
}

RaceCar::RaceCar(std::string name, Engine *carEngine)
{
	// set given values to the object
	this->name = name;
	this->carEngine = carEngine;
}

RaceCar::RaceCar(std::string name, int size, int cyclinders)
{
	// set given values to the object
	this->name = name;
	this->carEngine = new Engine(size, cyclinders);
}

std::string RaceCar::getName()
{
	return name;
}

void RaceCar::setName(std::string value)
{
	name = value;
}

Engine *RaceCar::getCarEngine()
{
	return carEngine;
}

void RaceCar::setCarEngine(Engine *value)
{
	carEngine = value;
}



	static void main()
{
	//Create a RaceCar with an Engine
	RaceCar *car1 = new RaceCar(); // use defaults
	Engine *eng = new Engine(350, 8);
	//RaceCar car2 = new RaceCar("Midnight Blue", eng);
	RaceCar *car2 = new RaceCar("Midnight Blue", new Engine(350, 8));

	//display the values

	
	
	
}

How do I get this output:
Car1
Car Name: unknown
Engine Size 0
Engine Cyclinders 0
Car2
Car Name: Midnight Blue
Engine Size 350
Engine Cyclinders 8
Press any key to continue . . .

[imi]

What have you tried? Where are you stuck? Can you be a bit more specific, please?

For your current question, the easiest solution would be: replace everything with

std::cout << "Car1" << std::endl;
std::cout << "Car Name: unknown" << std::endl;
std::cout << "Engine Size 0" << std::endl;
std::cout << "Engine Cyclinders 0" << std::endl;
std::cout << "Car2" << std::endl;
std::cout << "Car Name: Midnight Blue" << std::endl;
std::cout << "Engine Size 350" << std::endl;
std::cout << "Engine Cyclinders 8" << std::endl;
std::cout << "Press any key to continue . . ." << std::endl;

:-P

Ciao, Imi.

[moorecm]

For one, the main function should return an int and should not be static.

[goldenchild731]

this is what i got so far

std::cout << "Car1" << "\n\tCar Name: " << car1->getName()<< std::endl;
	std::cout << "Car2" << "\n\tCar Name: " << car2->getName()<< std::endl;			

Output:
Car1
Car Name: unknown
Car2
Car Name: Midnight Blue
Press any key to continue . . .

I need to get and display the values of engine size and cylinders for car 1 and car 2

[goldenchild731]

got it thank you guys

std::cout << "Car1" << "\n\tCar Name: " << car1->getName()<< std::endl;
	
	std::cout << "\n\tEngine Size: " << car1->getCarEngine()->getSize()<< std::endl;
	std::cout << "\n\tEngine Cyclinders: " << car1->getCarEngine()->getCyclinders()<< std::endl;
	std::cout << "Car2" << "\n\tCar Name: " << car2->getName()<< std::endl;
	std::cout << "\n\tEngine Size: " << car2->getCarEngine()->getSize()<< std::endl;
	std::cout << "\n\tEngine Cyclinders: " << car2->getCarEngine()->getCyclinders()<< std::endl;

Output:
Car1
Car Name: unknown

Engine Size: 0

Engine Cyclinders: 0
Car2
Car Name: Midnight Blue

Engine Size: 350

Engine Cyclinders: 8
Press any key to continue . . .