?? catalog.java
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package developerworks.ajax.store;import java.util.*;public class Catalog { private static Map<String,Item> items; static { items = new HashMap<String,Item>(); items.put("hat001",new Item("hat001","Hat","Stylish bowler hat (SALE!)",1999)); items.put("dog001",new Item("dog001","Dog","Chocolate labrador puppy",7999)); items.put("sou001",new Item("sou001","Soup","Can of tasty tomato soup",199)); items.put("cha001",new Item("cha001","Chair","Swivelling office chair", 4999)); items.put("str001",new Item("str001","String","Metric tonne of bailing twine", 1999)); items.put("qua001",new Item("qua001","Quark","Everyone's favorite sub-atomic particle", 49)); } public Collection<Item> getAllItems() { return items.values(); } public boolean containsItem(String itemCode) { return items.containsKey(itemCode); } public Item getItem(String itemCode) { return items.get(itemCode); }}
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