import java.util.Map; public class ChatUserImpl extends ChatUserSkel { private String _username; public ChatUserImpl(String username) { super(); _username = username; } @Override public void notifyJoin(String name, ChatUser user) { // TODO Auto-generated method stub show("Usuario "+name+" entrou na sala"); } @Override public void notifyLeave(String name) { // TODO Auto-generated method stub show("Usuario "+name+" saiu da sala"); } @Override public void notifyMessage(String sender, String message) { // TODO Auto-generated method stub show("["+sender+"] disse: "+message); } public String getUsername() { return _username; } public void show(String msg) { System.out.println("> "+msg); } public Map filhos() { // TODO Auto-generated method stub return null; } }