Question #6: (3 pts) Given an Ordered doubly linked-list whose nodes hold integer values and has the header reference "header pointing to the first node in the list. The nodes of the linked list are sorted in an ascending order of their integer values, such that the first node, at the header position, holds the smallest integer value. Write the method Node insertNode (Node header, int x) whose parameters are the header reference "header and an integer value x. The method should insert a node with the value x in its correct position, such that the list remains sorted after insertion. The method should return a reference to the newly inserted node. The linked list "Node" class is declared as follows: public class Node { public int value; public Node prev; public Node next; public Node (int value, Node prev, Node next) { this.value = value; this.prev = prev; this.next next; } }