public void newUser(String name, String password) {
UserDomainController userContrl = UserDomainController.getInstance();
if (userContrl.checkAvailability(name)) {
int id = userContrl.getNextID();
if (id > MAXUSER) showError("Not enough id to identificate all users");
else userContrl.register(id, name, password);
}
else showError ("User already exists");
}
public boolean loginUser (String name, String password) {