Using a property from one class in another class' member?

[dragonbane]

This is my first post here, but I've been browsing the forums for the past year I've been in college. You guys are great help when I run into snags! :) Also, if this question is already in the forums I apologize, I looked, but wasn't exactly sure what I was looking for.

Anyway, on to the question. I'm in a college course right now about object oriented programming. I decided to code my own little game but ran into a bit of confusion. All of my assignments so far were working with single classes, but my game is going to have quite a few and I'm hoping I'm not digging myself too big of a whole. I was wondering if you had classes like this:

class A
{
private:
	string shape;
public:
	void nameShape(void);
};

class B
{
private:
	string color;
public:
	string nameColor(void);
};

string B::nameColor()
{
	color = "red";
	return color;
}

Is it possible to reference Class A's private or public properties inside the nameColor member? I know this doesn't work, but it's the only thing i can think of at the moment:

string B::nameColor()
{
	color = "red";
	return color;
        cout << "The color is " << color << " and the shape is ";
        << A::Shape << ".";
}

I know I could always return the Shape property to the main function and send it as an argument to nameColor, but that might get extreme if I have to send a lot of arguments at once later in the code. I'm trying to think ahead, but I'm pretty new to C++ and am not sure if there are easier ways to go about it so I don't have to send every property from one class to another class every time I switch the class I'm working with. I'm going to get some sleep and look at it again. Any insight would be greatly appreciated!

[Albatross]

friend solves all inheritance problems. Yes, I do recommend inheritance.
http://cplusplus.com/doc/tutorial/inheritance/

Welcome to the forums.

-Albatross

[dragonbane]

Thank you so much! I had forgotten all about them! I read about them a few weeks ago the first time I was introduced to classes, but it was over my head at the time. Thanks again!