🚀 go-pugleaf

In article <3aea6aff_2@dnews>, Frajola <fra_jo_la@ig.com.br> writes
>Friends,
>
>I think that a static method can be call
>without to criate the instance of the
>class.
>
>Why?
>
>Because the compiler identify if the
>class have a static method and create
>that instance of this class?

Static variables exist once per class and do not belong to any
particular instance.  Static methods likewise exist once per
class and do not attach to any particular instance (so they 
can't change variables of the "current instance"; they don't have one).

An example might be a variable to count the number of instances created,
and a method to issue each new instance.

class Node {
    integer leftVal;
    integer riteVal;
    Node    leftSon;
    Node    riteSon;
    Node(){
        leftVal=riteVal=0;  leftSon=rireSon=null;
    };
    //
    static integer numNodes  = 0;
    static Node issueNode(){ ++numNodes;
        return new Node();
    };
};

-- 
   ^-^-^-@@-^-;-^   http://www.xemu.demon.co.uk/
        (..)__u     news:alt.smoking.mooses