Java中Map获取key和value

Java Map获取key和value的方法

    List list  =new ArrayList();         if (null != list) {                 for (Map m : list) {                          Iterator iterators=m.entrySet().iterator();                         while (iterators.hasNext()) {                                 Entry ent=(Entry) iterators.next();                                 String key =  (String) ent.getKey();//key值                                 String value = (String) ent.getValue();//value值                         }                 }

     }