public class Game 
{
    private Parser parser;
    private Room currentRoom;
    private Player currentPlayer;
   
   
        
    /**
     * Create the game and initialise its internal map.
     */
    public Game() 
    {
        createRooms();
        parser = new Parser();
        
        currentPlayer = new Player("Mark",currentRoom);
    }

    /**
     * Create all the rooms and link their exits together.
     */
    private void createRooms()
    {
        Room outside, theatre, pub, lab, office, cellar;
      
        // create the rooms
        outside = new Room("outside the main entrance of the Polytechnic");
        theatre = new Room("in a lecture theatre");
        pub = new Room("in the campus pub");
        lab = new Room("in a computing lab");
        office = new Room("in the computing admin office");
        cellar = new Room("in the cellar");
        // initialise room exits
        outside.setExit("east", theatre);
        outside.setExit("south", lab);
        outside.setExit("west", pub);

        theatre.setExit("west", outside);

        pub.setExit("east", outside);

        lab.setExit("north", outside);
        lab.setExit("east", office);
        

        office.setExit("west", lab);
        office.setExit("down", cellar);
        cellar.setExit("up", office);
        currentRoom = outside;  // start game outside
        
        // add items 
        Item textbook = new Item("this is a Java textbook",5);
        office.addItem("Textbook",textbook);
    }

some other methods omitted 

import java.util.HashMap;
import java.util.Set;
import java.util.Iterator;
 
 
public class Item
{
    private String description;
    private String name;
    private int weight;
    private boolean moveable;
 
 
    /**
     * Constructor for objects of class Item.
     */
    public Item(String myDescription, String myName, int myWeight, boolean itemMoveable) 
    {
        this.description = myDescription;
        this.name = myName;
        this.weight = myWeight;
        this.moveable = itemMoveable;       
    }
 
    /**
     * Return the description of the item (the one that was defined
     * in the constructor).
     */
    public String getDescription()
    {
        return description;
    }
 
    /**
     * Return the name of the item (the one that was defined
     * in the constructor).
     */
    public String getName()
    {
        return name;
    }
 
    public boolean isMoveable()
    {
        return (moveable == false);
    }
 
    /**
     * Return the weight of the item 
     */
    public int getWeight()
    {
        return weight;
    }
 
}