arrayList.size has private access? wtf?

I have been messing with ArrayList for awhile and today well working on this zombie game I'm making for class I got an error that I have never seen before and do not understand why I get this here is the code:

import java.util.ArrayList;

publicclass Room

{

private String description;

public HashMap<String, Room> exits;

publicstatic Room currentRoom;

public ArrayList<Room> roomList =new ArrayList();

public Room(String description)

{

this.description = description;

exits =new HashMap<String, Room>();

roomList.add(this);

}

publicvoid placeRandomZombies()

{

int listSize = roomList.size;

}

And the error:

size has private access in java.util.ArrayList

Your help is much greatful

[1464 byte] By [sharokua] at [2007-11-27 4:49:43]