<?php require './Conta.php'; require './ContaPoupanca.php'; $cp = new ContaPoupanca(); $cp->deposito(200); $cp->virarMes(); $cp->saque(200); echo $cp->pegarSaldo();
<?php require './Conta.php'; require './ContaPoupanca.php'; $cp = new ContaPoupanca(); $cp->deposito(400); $cp->calculaRendimento(); echo $cp->pegarSaldo();