The Queue Class of the com.ms.util package provides a queue, implemented in an array.
public class Queue implements java.util.Enumeration, Cloneable { // Constructors public Queue(); public Queue(int intialcapacity); public Queue(int intialcapacity, init growthfactor); // Methods public synchronized void addElement(Object newelt); public int capacity(); protected Object clone() throws CloneNotSupportedEception; public synchronized Queue copy(); public synchronized Object elementFromHead(int idx); public synchronized Object elementFromTail(int idx); public synchronized boolean hasMoreElements(); public synchronized Object nextElement(); public synchronized Object pop(); public synchronized void removeAllElements(); public synchronized int setCapacity(int newcapacity); public synchronized int size(); public String toString(); }