//import java.util.*;
/**
 * Write a description of class Queue here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class Queue extends LinkedList
{
   public Queue()
   {}

   public void enqueue(Object elem)
   {
       insertAtBack(elem);
   }
   public Object dequeue()// throws
   {
      Object temp = head.getData();
       if(isEmpty())
       {
           System.err.println("Queue is Empty, can't remove element.");
       }
       else
       {

        removeFromFront();

      }
      return temp;
    }
}
   /*public boolean isEmpty(){
       return isEmpty();
   }*/ //already within class LinkedList