I need help

Follow the Documentation Strings in House.java to complete this assignment.

Methods:

1. int totalSquareFeet()

   1. Calculates the total square feet by summing the individual square footage from each Room in the Array rooms.

2. double averageSquareFootagePerRoom()

   1. Calculates the average square feet per room by averaging the individual square footage from each Room in the Array rooms.

3. String[] roomNames()

   1. Returns a String Array of Room names sorted in Lexicographic order.

House.java

Room Class

import java.ut public class Houset ava private RoomI] rooms; // Constructor Do Not Modify public House (Room[] rooms) his.room8room3 *Calculates the sum of the squareFeet of all the rooms in rooms * @return suum public int totalSquaret) return 0; *Calculates the average square footage per room based on the * footage of each room and the total number of rooms * Creturn average ratio of square public double aveageSquaeEetgexReom() i return 0 *Returns a SORTED list of room names in lexicographic order * Creturn sorted String Array public stringl xeomNames return null; public class Room private String name; private int length, width; public Room [ this.name"undefined"; this.length -1; this.width -1; public Room (String name, int length, int width) this.name name.toLowerCase ); this.length length; this.width width; public int getLength) return this.length; public int getWidth () return this.width; public String getName ) return this.name; public int getsquareFeet return this.length * this.width