Please explain each step and what they do and when to use them

Given the following linked list Node class: public class Node t private double data private Node next public Node (double data, Node next) -data this.data this. next next, = public double getData) public void setbata(double data) f public Node getNext ) return data this.data = data, return next public void setNext (Node next) ( this. next next, Write a LinkedList class that will implement a linked list of doubles. Your linked list class should have an appropriate constructor, and the following public void addFromArray (doublet] array) - add all of the values from the array to the linked list, in the same order as in the array, to the beginning of the list. It must add the strings to the list, do not overwrite any items already in the list. ' public int count (double min, double max) - count and return the number of values in the list in the in the range [min. max] (inclusive)