question about class derivation in c++?

Programmer Question

hi,
i want to know some things about class derivation in c++
so i have super class x and an inherited class y
and i did this

class x{
    public:a;
    private:b;
    protected:c;
}    
class y:public x{
    public:d;
}

in this case how y can access a,b,and c and by how i mean(public,protected,private)

the second case:

class x{
    public:a;
    private:b;
    protected:c;
}    
class y:private x{
    public:d;
}

the same question?

the third case:

class x{
    public:a;
    private:b;
    protected:c;
}    
class y:protected x{
    public:d;
}

again the same question?

sorry i think i wrote too much
bye

Find the answer here