Static Functions & Variables

Static functions only allow static variables
Static variables are the same for EVERY object in the class.

Consider the following code:

class Crabulon{
private:
	static int legs;
public:
	Crabulon();
    static void incLegs();
    static void printLegs();
};
int Crabulon::legs = 0;
void Crabulon::incLegs(){
    legs++;
}
void Crabulon::printLegs(){
    cout << legs << endl;
}
int main(){
    Crabulon c1;
    Crabulon c2;
    c1.incLegs();
    c2.incLegs();
    c2.incLegs();
    c1.printLegs(); // will print "3"
    c2.printLegs(); // will print "3"
    Crabulon::printLegs(); // will print "3"
}

Since legs is static, both objects (c1 and c2) will print the same value for legs.