On classes

Question

How to learn different types of classes?

Answer 1

what do you mean? write some to represent various real life objects I guess..
creature->rat

class creature
{
public:
int setHealth(int health) { m_health = health;}
virtual void speak() { cout << "Creature";}
private:
int m_health;
}

class rat::public creature
{
public:
void speak() { cout << "Rat!";}
}