public void setAdminArea2(String adminArea2) {
        this.adminArea2 = adminArea2;
    }
The postal code, which is the zip code or equivalent. Typically required for countries with a postal code or an equivalent. See [postal code](https://en.wikipedia.org/wiki/Postal_code).
pay-java-paypal/src/main/java/com/egzosn/pay/paypal/v2/bean/order/AddressPortable.java