package ufrn.imd.domain; import ufrn.imd.domain.Account; import java.io.Serializable; import java.util.Optional; public class Client implements Serializable { private static final long serialVersionUID = 1L; private Account account; public Client(Account account) { this.account = account; } public Double getBalance() { return account.getBalance(); } public Optional<Account> getAccount() { return Optional.of(account); } }