package EDU.auburn.VGJ.algorithm.shawn;

import java.util.Vector;

/**
 *  Class to implement a simple queue of integers.

 * </p>Here is the <a href="../algorithm/shawn/Queue.java">source</a>.
 */

public class Queue
  {
   private static int size;
   Vector array;

   public Queue()
     {
      array = new Vector();
     }

   public int push(int item)
     {
      int num;
      array.addElement(new Integer(item));
      num = array.size();
      return num;
     }

   public int pop()
     {
      int item;
      item = ((Integer)array.elementAt(0)).intValue();
      array.removeElementAt(0);
      return item;
     }

   public boolean isEmpty()
     {
      return(array.isEmpty());
     }
  }