（管用）List集合去重

利用set集合不能重复

public class ListQuChongUtil {
    public static List<String> getRemoveList(List<String> list){
        Set set = new HashSet();
        List<String> newList = new ArrayList<>();
        for (Iterator iter = list.iterator(); iter.hasNext();){
            String object = (String) iter.next();
            if(set.add(object))
                newList.add(object);
        }
        return newList;
    }

}