The "this" statement that is used in the method "exitRoom" and "explore" is
that synonymous with an "Explorer" object?

public class Explorer implements PlayerBehavior {

   private String my_name;
   private String my_secret_word;
   private RoomBehavior where_I_am_now;

   public Explorer(String name, String word){

       my_name = name;
       my_secret_word = word;
       where_I_am_now = null;

     }

   public String speak(){

       return my_secret_word; }

   public void exitRoom(){

       if ( where_I_am_now != null )
          { where_I_am_now.exit(this);
            where_I_am_now = null;
          }
     }

   public boolean explore(RoomBehavior r){

       if ( where_I_am_now != null )
          { exitRoom(); }

       boolean went_inside = r.enter(this);
       if ( went_inside )
          { where_I_am_now = r; }
       return went_inside;
     }

   public RoomBehavior locationOf(){

       return where_I_am_now; }
   }