// angela's class
public class RegisterNewUser {
  public void makeSureLoginAndPasswordAreValid(String loginName, String password) {
    
  }
}

// michael's class
public class ValidateData {
  public boolean isValidLogin(String login) {
    if(login == null) {
      return false;
    }
    if(login.length() < 2 || login.length() > 32) {
      return false;
    }
  }

  public boolean isValidPassword(String login) {
    if(login == null) {
      return false;
    }
    if(login.length() < 8 || login.length() > 16) {
      return false;
    }
  }
}