遍历HashMap的方法(四)

 Map map = new HashMap(); 

 for (Iterator iter = map.entrySet().iterator(); iter.hasNext();) { 

     Map.Entry entry = (Map.Entry) iter.next(); 

     Object key = entry.getKey();     //得键

     Object val = entry.getValue();     //得值

 } 

 或者: 

 Map map = new HashMap(); 

 for (Iterator iter = map.keySet().iterator(); iter.hasNext();) { 

     Object key = iter.next();         //得键

     Object val = map.get(key);         //得值

 }