package headfirst.iterator.dinermergercafe;import java.util.Iterator;import java.util.Calendar;public class AlternatingDinerMenuIterator implements Iterator {	MenuItem[] items;	int position;	public AlternatingDinerMenuIterator(MenuItem[] items) {		this.items = items;		Calendar rightNow = Calendar.getInstance();		position = rightNow.DAY_OF_WEEK % 2;	}	public Object next() {		MenuItem menuItem = items[position];		position = position + 2;		return menuItem;	}	public boolean hasNext() {		if (position >= items.length || items[position] == null) {			return false;		} else {			return true;		}	}	public void remove() {		throw new UnsupportedOperationException(			"Alternating Diner Menu Iterator does not support remove()");	}}