(Cast) i return statements.

Kære eksperter,

I nedenstående program ønsker jeg, i metoden leadsTo(,) at returnere hvilket rum der er tale om. Når jeg gør det som jeg gør får jeg et objekt ud i stedet.
 
import java.util.*;

/**
* Room...
*
* @author  Michael E. Caspersen
* @version 26 March 2003
*/
public class Room {

    private List rooms;
    private Collection items;
    private String name;

    /**
    * rooms is a list of length 4 where
    *  rooms.get(0) refers to the room in direction EAST
    *  rooms.get(1) refers to the room in direction NORTH
    *  rooms.get(2) refers to the room in direction WEST
    *  rooms.get(3) refers to the room in direction SOUTH
    *
    * items is a collection with references to the items in the room
    *
    * name is the name of the room (useful for testing)
    */

    public Room(String name) {
        rooms = new ArrayList(4);
        for (int i = 0; i<4; i++) {
            rooms.add(i, null);
        }
        items = new ArrayList();
        this.name = name;
    }

    /**
    * Connects the room to room <code>r</code> in direction <code>dir</code>
    */
    public void connectTo(int dir, Room r) {
        rooms.set(dir, r);
    }

    /**
    * Returns whether there is a room in direction <code>dir</code> from this room
    */
    public boolean roomExists(int dir) {
       
        if (rooms.get(dir)!=null)
            {
                return true;
                }
            else
            {
                return false;
                } 
    }

    /**
    * Returns the room connected to this room in direction <code>dir</code>
    */
   
public Room leadsTo(int dir) {
       
        Room a = "I retning " + dir + " er rummet" + (String)rooms.get(dir);
        return a;
        }

    /**
    * Adds item <code>i</code> to the room
    */
    public void addItem(Item i) {
        items.add(this);
    }

    /**
    * Return whether there are any items in this room
    */
    public boolean itemExists() {
       
        if (items.size()>0) {
            return true;
            }
            else {
                return false;
                }
    }
    /**
    * Return an Item chosen randomly among all items in the room
    */
    public Item chooseItem() {
       
        return null; // kun indsat for at tilfredsstille oversætteren
    }

    /**
    * Removes item <code>i</code> from the room
    */
    public void removeItem(Item i) {
        items.remove(this);
    }

}

mvh

nanders