Java Êý×é List ÈçºÎ´«Öµ

// ºÏ²¢ List ÖеÄÏàͬÊý¾ÝÐÐ
// Source £º tmpOrderEntryListBeanList
// Target £º resultOrderEntryListBeanList
// ------------------------------------------------------------------

// £¨1£©½«½á¹û¸³¸ø Result Livon 2010-5-18 Èý
// ÕûÀíÁÐ±í£¬ÒÔ±ã²éѯ¿â´æ¡£
private List<OrderEntryListBean> setOrderEntryList(List<OrderEntryListBean> orderEntryListBeanList){

// £¨1£©½«½á¹û¸³¸ø Result Livon 2010-5-18 Èý
//List<OrderEntryListBean> resultList = orderEntryListBeanList;
ArrayList<OrderEntryListBean> list = new ArrayList<OrderEntryListBean>(orderEntryListBeanList);
ArrayList<OrderEntryListBean> resultList = (ArrayList<OrderEntryListBean>) list.clone();

int rdcID_i, rdcID_j ;
int itemID_i, itemID_j ;
double itemAmount_i, itemAmount_j = 0;
// £¨2£©´Ó×îºóÒ»ÐÐÏòÉÏÑ­»·£¬Ö±µ½µÚ2Ìõ£¨Èç¹û´æÔڵĻ°£©
for(int i = resultList.size() - 1; i > 0; i--){

rdcID_i = Integer.valueOf(resultList.get(i).getRdcId());
itemID_i = Integer.valueOf(resultList.get(i).getItemId());
itemAmount_i = Double.valueOf(resultList.get(i).getAmount());

// £¨3£©´ÓµÚÒ»Ìõ£¬ÏòÏ£¬Ö±µ½ÍâÑ­»·µÄµ¹ÊýµÚ2Ìõ¡£
for(int j = 0; j < i ; j++){

rdcID_j = Integer.valueOf(resultList.get(j).getRdcId());
itemID_j = Integer.valueOf(resultList.get(j).getItemId());
itemAmount_j = Double.valueOf(resultList.get(j).getAmount());

if(rdcID_i == rdcID_j && itemID_i == itemID_j ){
resultList.get(j).setAmount( String.valueOf(itemAmount_i + itemAmount_j));
resultList.remove(i);
break;
}
}

}
return resultList;

}