Java 集合 LinkedHashMap

import java.util.LinkedHashMap;
import java.util.Set;
import java.util.Iterator;
import java.util.Map;
public class LinkedHashMapDemo {
    public static void main(String args[]) {
         // HashMap Declaration
         LinkedHashMap<Integer, String> lhmap = 
                 new LinkedHashMap<Integer, String>();

         //Adding elements to LinkedHashMap
         lhmap.put(22, "Abey");
         lhmap.put(33, "Dawn");
         lhmap.put(1, "Sherry");
         lhmap.put(2, "Karon");
         lhmap.put(100, "Jim");

         // Generating a Set of entries
         Set set = lhmap.entrySet();

         // Displaying elements of LinkedHashMap
         Iterator iterator = set.iterator();
         while(iterator.hasNext()) {
            Map.Entry me = (Map.Entry)iterator.next();
            System.out.print("Key is: "+ me.getKey() + 
                    "& Value is: "+me.getValue()+"\n");
         }
    }
}

Key is: 22& Value is: Abey
Key is: 33& Value is: Dawn
Key is: 1& Value is: Sherry
Key is: 2& Value is: Karon
Key is: 100& Value is: Jim