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 A4AList; // Program Description: The program will implement an Index-based List with a Node based Singly Linked List. // File name: ListTester2.java (List client) // File description: This is a tester for an Index-based List Class implemented using generics. // Files in this program: // To be written by student: DLL.java, AList.java // Provided by professor: DLLADT.java, DLLNode.java // AListTesterPerson.java, AListTesterInteger.java, Person.java // Note: DO NOT MODIFY the provided files // Revision History: // Date: By: Action: // --------------------------------------------------- // 3/20/18 mb created // 9/20/2020 jk updated with bug fixes public class ListTester2 { public static void main (String[] args){ AList<Person> L = new AList<>(); int i, j; Person a, b, c, d, e, f, g, h, k, l, m, p; a = new Person ("Amy"); b = new Person ("Bob"); c = new Person ("Cal"); d = new Person ("Dot"); e = new Person ("Eli"); f = new Person ("Fay"); g = new Person ("Gil"); h = new Person ("Hop"); k = new Person ("Kim"); l = new Person ("Lee"); m = new Person ("Mak"); try{ System.out.println ("Testing add(element):"); System.out.println (L); // this one is EMPTY L.add(a); System.out.print("Item added: " + a + ". "); System.out.println (L); L.add(b); System.out.print("Item added: " + b + ". "); System.out.println (L); L.add(c); System.out.print("Item added: " + c + ". "); System.out.println (L); L.add(d); System.out.print("Item added: " + d + ". "); System.out.println (L); System.out.println ("\nTesting add(index, element):"); L.add( 2, e); System.out.print("Item inserted at index 2: "+ e + ". "); System.out.println (L); L.add( 4, f); System.out.print("Item inserted at index 4: "+ f + ". "); System.out.println (L); System.out.println ("\nTesting get(index):"); System.out.println("There are " + L.size() + " items in the list: "); for ( i=0; i<L.size(); i++) System.out.print("Item("+i+"): " + L.get(i)+". "); System.out.println(); L.add(g); L.add(h); L.add(k); L.add(l); System.out.println("Items added: Gil,Hop,Kim,Lee."); System.out.println (L); System.out.println("There are " + L.size() + " items in the list,"); System.out.println ("\nTesting set(index, element):"); L.set( 4, g); System.out.print("Set Item(4) to "+g+"."); System.out.println (L); L.set( 8, h); System.out.print("Set Item(8) to "+h+"."); System.out.println (L); //If uncommented, this should force an index out of bounds exception: //L.set( 20, m); System.out.println ("\nTesting contains(element):"); if (L.contains(d)) System.out.println("The AList contains "+ d + ". "); else System.out.println("The AList does not contain "+ d + ". "); if (L.contains(m)) System.out.println("The AList contains "+ m + ". "); else System.out.println("The AList does not contain "+ m + ". "); System.out.println ("\nTesting remove(index):"); System.out.print("Removed Item(3): " + L.remove(3) +". ");System.out.println (L); System.out.print("Removed Item(5): " + L.remove(5) +". ");System.out.println (L); //If uncommented, this should force an index out of bounds exception: //System.out.print("Removed Item(15): " + L.remove(15) +". ");System.out.println (L); System.out.println("There are " + L.size() + " items in the list. "); System.out.println ("\nTesting remove(element):"); if (L.remove(a)) {System.out.print("Removed item containing " + a +". ");System.out.println (L);} else System.out.println("Cannot remove " + a +". Not in AList."); if (L.remove(m)) System.out.println("Removed item containing " + m +". "); else System.out.println("Cannot remove " + m +". Not in AList."); System.out.println ("\nTesting indexOf(element):"); i = L.indexOf(g); if (i>=0) System.out.println("The first occurrence of " +g+" is at index: " + i); // uses comparison! use .equals! else System.out.println("The AList does not contain " + g); i = L.indexOf(m); if (i>=0) System.out.println("The first occurrence of " +m+" is at index: " + i); // uses comparison! use .equals! else System.out.println("The AList does not contain "+ m + ". "); System.out.println(); j=L.size(); for ( i=0; i<j; i++) { System.out.print("Removed Item(0): " + L.remove(0) +" "); System.out.println (L); } System.out.println("Is the list empty? " + L.isEmpty()); // The following should force an exception if uncommented: // System.out.println("The next remove(0) should force an exception: "); // System.out.print("Removed item(0): " + L.remove(0) + ". ");System.out.println (L); } catch (Exception x) {System.out.println ("Error: "+ x.getMessage());} } }