1 Map map = new HashMap();  2  3 for (Iterator iter = map.entrySet().iterator(); iter.hasNext();) {  4  5     Map.Entry entry = (Map.Entry) iter.next();  6  7     Object key = entry.getKey();     //得键 8  9     Object val = entry.getValue();     //得值10 11 } 12 13 或者: 14 15 Map map = new HashMap(); 16 17 for (Iterator iter = map.keySet().iterator(); iter.hasNext();) { 18 19     Object key = iter.next();         //得键20 21     Object val = map.get(key);         //得值22 23 }