Java Question:

 

Hi, I am currently a Queue Simulator for an email server. I tried converting my Queue Array to an ArrayList then changing my codes to be able to use ArrayList. But I am unsure whether I did them correctly or not and also, I am also unsure of how to change my code in the QueueRunner() method to be able to use ArrayList.

 

Below is the screenshot of the changes I made:

   

// Global Variables. private static int maxSize; // private static int qArray []; // Added this. private static ArrayList qArray = new ArrayList (); private static int front; private static int rear; private static int nItem; = 0; private static double arrivalRate = 0; private static double messagesSent private static double messagesQueue private static double requeued = 0; private static int minutes = 0; private static ArrayList message = new ArrayList (); private static int total = 0; // Constructor. public QueueSim(int qSize) { } maxSize = qSize; // qArray = new int[qsize]; // Added this. qArray = new ArrayList (qSize); = front 0; rear = -1; nItem = 0; 0;