Java Map 排序取数

import java.util.Iterator;
import java.util.Set;
import java.util.TreeMap;

public class Test1 {

 /**
  * @param args
  */
 public static void main(String[] args) {
  TreeMap<Integer,String> maps = new TreeMap<Integer,String>();
  maps.put(3, "王五");  
  maps.put(1, "张三");
  maps.put(2, "李四");
  maps.put(4, "赵六");
  
 // int size=maps.size();
 // int count=0;
  Set set=maps.keySet();
  Iterator iter=set.iterator();
  while(iter.hasNext()){
   Object key=iter.next();
  // if(count>=(size-2)){
    System.out.println(key+" "+maps.get(key));
  // }
  // count++;
  }
 }
}