set list 最有效率的通用遍历方法

Set<Department> departments = new LinkedHashSet<Department>();
//或者
  List<Department> departments = new ArrayList<Department>();

for (Iterator it = departments.iterator(); it.hasNext();) {
                Department department = (Department) it.next();
                if (StringUtils.isBlank(department.getName())) {
                    it.remove();
                }
            }