Map重新組裝

private static Map<String, Object> getHashMap(final Map<String, Object> map){

 final HashMap<String, Object> hMap=new HashMap<String, Object>();

 final Set<String> keySets=map.keySet();

 Iterator<?> it=keySets.iterator();

 while(it.hasNext()){

  final String key=(String) it.next();

  if(key.equals("88") || key.equals("99")){

   continue;

  }

  if(map.get(key) instanceof String){

   hMap.put(key, map.get(key).toString().trim());

  }else{

   hMap.put(key, map.get(key));

 }

 return hMap;

}

Map

map1=new HashMap();

map1.put("2", "2");

Map map2=new HashMap();

map2.put("2", "2");

map2.put("88", "88");

map2.put("99", "99");

在此，map1與map2是相等的