Iterator (Chapter 28)
SOLUTION 28.1 | A working program is:
package com.oozinoz.applications; import com.oozinoz.fireworks.*; public class ShowFireworkList { public static void main(String[] args) { FireworkList flist = Promo.getPromotionalFireworks(); FireworkList.Itr i = flist.iterator(); while (i.hasNext()) { Firework f = i.next(); System.out.println( f.getName() + ", $" + f.getPrice() + ", " + f.getType()); } } } |
SOLUTION 28.2 | As Chapter 16, Factory Method, describes, iterators provide a classic example of the FACTORY METHOD pattern. A client that wants an iterator for an instance of a ProcessComponent knows when to create the iterator, but the receiving class knows which class to instantiate. |
SOLUTION 28.3 | You need to change the next() code ... |
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