map里面放的list,list放的是对象,怎么遍历?

Question

map里面放的list,list放的是对象,怎么遍历

Answer 1

Map<String, List<User>> aa = new HashMap<String, List<User>>(); for (Iterator<String> iterator = aa.keySet().iterator(); iterator.hasNext();) { String key = iterator.next(); List<User> l = aa.get(key); for (int i = 0; i < l.size(); i++) { } }