()
| 11 | private HashMap<Integer, User> onlineUsers = new HashMap<Integer, User>(); |
| 12 | |
| 13 | public static UserManager getInstance() { |
| 14 | if (instance == null) { |
| 15 | instance = new UserManager(); |
| 16 | } |
| 17 | return instance; |
| 18 | } |
| 19 | |
| 20 | public void addUser(User fromUser, String toAccountName) { |
| 21 | User toUser = usersByAccountName.get(toAccountName); |