Inheritance and Polymorphism

Sample code of these oop words. Any replies would be appreciated. Thank's

1.Single inheritance
2.Multiple inheritance
3.Multi-level inheritance
4.Ad hoc polymorphism
5.Pure Polymorphism

1) A->B
A B (2
\ /
C
3) A->B->C
4) & 5) difference between ad hoc and pure in this context, haven't the foggiest. Sorry.

1.Single inheritance
-- example:

Code:

---

class myClass1
{
// stuff
};

class myClass2:public myClass1
{
// more stuff, but now can use stuff from myClass1 too
};

---

2.Multiple inheritance
-- example:

Code:

---

class myClass1
{
// stuff
};

class myClass3
{
// stuff2
};

class myClass2:public myClass1, public myClass3
{
// more stuff, but now can use stuff from myClass1 and myClass3 too
};

---

3.Multi-level inheritance
-- example:

Code:

---

class myClass1
{
// stuff
};

class myClass3:public myClass1
{
// can use stuff from myClass1
};

class myClass2:public myClass3
{
// more stuff, but now can use stuff from myClass1 and myClass3 too
};

---

4.Ad hoc polymorphism
5.Pure Polymorphism

polymorphism has to do with stuff like this:
-- example:

Code:

---

class myClass1
{
    virtual void myFunc()=0;  // Means it must be implemented by the inheriting class
};

class myClass2:public myClass1
{
    void myFunc();
};
myClass1* shell=new myClass2();

shell->myFunc();  // Calls myFunc from myClass2

---

We create a myClass1 pointer, but instantiate it with a myClass2 type, This is really nice because we could swap in and out different "modules" just by changing one pointer!