[Java] Java中List 去掉重复的值,并保持原先List顺序

时间:2024-06-01 21:07:44
  private List<YourBean> removeDuplicate(List<YourBean> list) {
Set<YourBean> set = new HashSet<YourBean>();
List<YourBean> newList = new ArrayList<YourBean>();
for (Iterator<YourBean> iter = list.iterator(); iter.hasNext();) {
YourBean element = (YourBean) iter.next();
       //利用set集合不会添加重复元素的特性
if (set.add(element))
newList.add(element);
}
return newList;
}