We are given a simple linked list (not doubly linked or double ended). The front of the list is referenced by a Node called front.

4) (10 points) We wish to have a method in our LinkedList class called len( ) that returns the length of the list. Write len ( ). See below for details.

5) (10 points) We wish to have a method in our LinkedList class called penultimate( ) that will print out the second to last Node in the linked list. If the linked list is empty or contains only 1 Node, it should print out Not found, otherwise it should print out the data contained in the Node (assume there is a toString( ) method defined for the Node). Write penultimate( ) See below for details.

public class LinkedList

{

Node front;

// lots of stuff here. Constructors, getters, setters, etc.

public int len( )

{

// you need to put the code in here!!

}

public void penultimate( )

{

// you need to write this code

}

}