java 通过Iterator输出Map

 1 package test;
 2 
 3 import java.util.ArrayList;
 4 import java.util.Collection;
 5 import java.util.HashMap;
 6 import java.util.Iterator;
 7 import java.util.List;
 8 import java.util.ListIterator;
 9 import java.util.Map;
10 import java.util.Set;
11 import java.util.SortedSet;
12 import java.util.TreeSet;
13 
14 
15 public class test {
16     public static void main(String[] args)  {
17         Map<String,String> map=new HashMap<String,String>();
18         map.put("Zhukai","is_a_2HUO!");
19         map.put("LiJunDong","is_a_2HUO_too!");
20         map.put("WoZiji","is_not_2HUO!");
21         Set<Map.Entry<String, String>> allSet=map.entrySet();
22         
23         Iterator<Map.Entry<String, String>> iter=allSet.iterator();
24         while(iter.hasNext()){
25             Map.Entry<String, String> me=iter.next();
26             System.out.println(me.getKey()+ " "+me.getValue());
27         }
28         
29     }
30 }