第一次使用博客园

public static void main(String[] args)
{
    HashMap<String, String> hm = new HashMap<String, String>();
    hm.put("111", "222");
        
    Set<Map.Entry<String, String>> entrySet = hm.entrySet();
    Iterator<Map.Entry<String, String>> iter = entrySet.iterator();
    while (iter.hasNext())
    {
        Map.Entry<String, String> entry = iter.next();
        System.out.println(entry.getKey() + "\t" + entry.getValue());
    }
}