/**

 * @author oy

 * @date 2019年9月22日 上午9:03:08

 * @version 1.0.0

 */

public interface Iterator {

    boolean hasNext();

    Object next();

}

public class DinerMenuIterator implements Iterator {

    String[] items;

    int position = 0;

    public DinerMenuIterator(String[] items) {

        this.items = items;

    }

    public Object next() {

        String item = items[position];

        position += 1;

        return item;

    }

    public boolean hasNext() {

        if (position >= items.length || items[position] == null) {

            return false;

        } else {

            return true;

        }

    }

}