/*
* A simple Queue data structure. Created: 10/23/2005 by Christian M. Zmasek.
* Last modified: 10/23/2005 by Christian M. Zmasek.
/*
* A simple Queue data structure. Created: 10/23/2005 by Christian M. Zmasek.
* Last modified: 10/23/2005 by Christian M. Zmasek.
* @return true if this queue is empty, false otherwise
*/
public boolean isEmpty() {
* @return true if this queue is empty, false otherwise
*/
public boolean isEmpty() {