1 package cn.itcast.p9.linkedhashmap.demo;

 2

 3 import java.util.HashMap;

 4 import java.util.Iterator;

 5 import java.util.LinkedHashMap;

 6 import java.util.Map;

 7

 8 public class LinkedHashMapDemo {

 9

10     public static void main(String[] args) {

11         // TODO Auto-generated method stub

12         HashMap<Integer, String> hm = new LinkedHashMap<Integer,String>();

13

14         hm.put(7, "zhouqi");

15         hm.put(3, "zhangsan");

16         hm.put(1, "qianyi");

17         hm.put(5, "wangwu");

18

19         Iterator<Map.Entry<Integer, String>> it = hm.entrySet().iterator();

20

21         while(it.hasNext()) {

22             Map.Entry<Integer, String> me = it.next();

23

24             Integer key = me.getKey();

25             String value = me.getValue();

26

27             System.out.println(key+":"+value);

28

29         }

30

31     }

32

33 }