Java示例通过HashMap迭代

import java.util.*;



public class Main {

   public static void main(String[] args) {

      HashMap< String, String> hMap = new HashMap< String, String>();

      hMap.put("1", "1st");

      hMap.put("2", "2nd");

      hMap.put("3", "3rd");

      Collection cl = hMap.values();

      Iterator itr = cl.iterator();



      while (itr.hasNext()) {

         System.out.println(itr.next());

      }

   }

}