测试HashMap的迭代器

import java.util.HashMap;/**来 自 n o w j a   v  a . c o m - 时  代  Java**/

import java.util.Map;


public class Main {


  public static void main(String[] args) {

    System.out.println("--testIterator--");

    String k1 = "b2";

    String k2 = "aQ";

    Map<String, String> map = new HashMap<String, String>();

    map.put(k1, "v1");

    map.put(k2, "v2");

    map.put("k3", "v3");

    map.put("k4", "v4");

    map.put("k5", "v5");

    for (Map.Entry<String, String> entry : map.entrySet())

    {
    /*
    n o w  j a v a  . c o m 提供
    */

        System.out.println(entry.getKey());

    }

    

    for (String key : map.keySet())

    {

        System.out.println(ke