/*
* Reminder Linked List class
*/
public class ReminderLinkedList {

protected Node start;
protected Node end;
public int size;

// Constructor
public ReminderLinkedList()
{
   start = null;
   end = null;
   size = 0;
}

// Get if Reminder Linked List object is empty
public boolean isEmpty()
{
   return start == null;
}

// Get Reminder Linked List object size
public int getSize()
{
   return size;
}

// Insert Reminder into Reminder Linked List object at beginning
public void insertAtBeginning(Reminder reminder)
{
   Node n = new Node(reminder, null);
   size++;
   if(start == null)
   {
         start = n;
         end = start;
   }
   else
   {
         n.setLink(start);
         start = n;
   }
}

// Insert Reminder into Reminder Linked List object after other Reminder
public void insertAfterReminder(Reminder reminder, Reminder givenReminder)
{
   Node n = new Node(reminder, null);
   size++;
   Node current = start;
   while (current != null && current.getReminder() != givenReminder) {
         current = current.getLink();
   }
   if(current.getReminder() == givenReminder)
   {
         Node temp = current.getLink();
         n.setLink(temp);
         current.setLink(n);
         if (end.getR

Complete method arraySum below. /** Returns the sum of the entri...