在setter中使用if / else语句

Question

在我的UML中它告诉我如果值为负

则不要让字段更新

public void setCurrentBalance(double currentBalance)
{
    if (currentBalance <= 0)
        this.currentBalance = currentBalance;
    else
        this.currentBalance = currentBalance;
}

如果构造函数如下所示，这看起来是否正确：

    setAccountNumber(accountNumber);
    setOwnerFirstName(ownerFirstName);
    setOwnerLastName(ownerLastName);
    setCurrentBalance(currentBalance);
    setMinimumBalanceRequired(minimumBalanceRequired);