/**
* A driver that uses a Quack
*
* @version 1.0
* @author Prof. David Bernstein, James Madison University
*/
public class QuackDriver
{
/**
* The entry point
*
* @param args The command-line arguments
*/
public static void main(String[] args)
{
	Quack quack;
	Object pdOff;
	quack = new Quack();
	quack.push("Bob");
	quack.push("and");
	quack.push("Carol");
	quack.push("like");
	quack.push("Ted");
	quack.push("and");
	quack.push("Alice");

	System.out.println("\n\npip:\n");

	pdOff = quack.pip();
	while (pdOff != null) 
	{
		System.out.println(pdOff);
		pdOff = quack.pip();
	} // end while
  } // end main
} // end QuackDriver