Where do i make the array???

Question

I have an a problem for my class.i need to make a room class, a house class that extends a building class. i am making the room class first with the instance vaiables of length and width. The house class is suppose to add the array of the rooms to accumulate the floor space. I'm thinking the house class is where i would make the array so it would keep adding the arrays there. Also i have the test class to input the data. My professor worte
"Each instance of the room class represents a single room. Make an
array of them to pass into the constructor of the House class."
I didn't understand to much please advise me for the placement of the array.

Answer 1

// Test class
public class Test {
   public static void main(String[] arghs) {
        Room[] rooms = new Room[3];
        rooms[0] = new Room("Living Room",12,20);
        rooms[1] = new Room("Kitchen",8,11);
        rooms[2] = new Room("Bedroom",25,40);
        House myHouse = new House(rooms);
        myHouse.printRooms();
// Room class
public class Room {
    String name;
    int length, width;
    public Room(String name, int length, int width) {
        this.name=name;
        this.length=length;
        this.width=width;
    public String toString() { return name+"("+length+"x"+width+")"; }
// House class
public class House {
    Room[] deRooms;
    public House(Room[] someRooms) {
        this.deRooms = someRooms;
    public void printRooms() {
        for (int i=0; i<deRooms.length; i++) System.out.println(deRooms);