#include <iostream>
using namespace std;
// myFriendClass1.cpp
//class within a class
class CommonFriend; 
class Domian1
{
	friend class CommonFriend;
	private: int domnum1; 
	public:
	void dom1_pubmethod()
	{ cout<<"\n \t publicly do_something ";}
	protected:
		void dom1_protectedmethod()
		{ cout<<"\n \t do_something after inritance ";}
	
}; 
class CommonFriend
{
	private: Domian1 dom1;
	public :
	 
	void allinone()
	{
		dom1. domnum1 = 201; 
		cout<<"\n dom1 pvt mem variable -- : "<< dom1. domnum1;  
		cout<<"\n dom1 protected mem function ---: ";
		dom1. dom1_protectedmethod(); 
		cout<<"\n dom1 public mem function: "; 
		dom1. dom1_pubmethod(); 
	}

}; 
int main()
{
	CommonFriend commonwealth;
	commonwealth.allinone(); 
	
	return 0; 
}