create an array list using the knowledge you have of how to build a doubly linked list(Array list is DDL based). Use provided files in addition to your files from previous work.

package A3DLL; // Program Description: The program will implement a structure like Java's ArrayList, using a Node based Doubly Linked List. // File name: DLLNode.java // File description: This is the DLLNode class. // DLL.java should use this DLLNode. // Files in this program: // To be written by student: DLL.java // Provided by professor: DLLADT.java, DLLNode.java, DLLTesterInteger // Note: DO NOT MODIFY the provided files // Revision History: // Date: By: Action: // --------------------------------------------------- // 3/1/17 mb created public class DLLNode <E> { private E element; private DLLNode <E> prev; private DLLNode <E> next; // empty constructor, creates DLLNode with everything set to null // pre-conditions: none // post-conditions: returns a reference to a new instance of a DLLNode element public DLLNode(){} // constructor: takes element, previous node, next node // pre-conditions: none // post-conditions: returns a reference to a new instance of a DLLNode element // prev, next are set to parameter values public DLLNode(E e, DLLNode <E> p, DLLNode <E> n){ element = e; prev = p; next = n; } // get the element // pre-conditions: none // post-conditions: element is returned public E getElement(){return element;} // get previous node // pre-conditions: none // post-conditions: previous node reference is returned public DLLNode <E> getPrevNode(){return prev;} // get next node // pre-conditions: none // post-conditions: next node reference is returned public DLLNode <E> getNextNode(){return next;} // set element // pre-conditions: none // post-conditions: element is replaced with parameter public void setElement(E e){element = e;} // set previous node // pre-conditions: none // post-conditions: previous is replaced with parameter public void setPrevNode(DLLNode <E> p){prev = p;} // set next node // pre-conditions: none // post-conditions: next is replaced with parameter public void setNextNode(DLLNode <E> n){next = n;} // set all references in node to null // (used to prepare for garbage collection) // pre-conditions: none // post-conditions: element, next, prev are all set to null public void nullify (){ element = null; next = prev = null;} // return a string representation of the node // pre-conditions: none // post-conditions: returns toString of the element public String toString () {return ""+element;} }