易锦教育 WEB攻防渗透就业班
public static String getCarInsuranceName(Person person) {
//对客户判空
if (person == null) {
return "Unknown";
}
// Car car = person.getCar();
if (car == null) {
return "Unknown";
}
// Insurance insurance = car.getInsurance();
if (insurance == null) {
return "Unknown";
}
return insurance.getName();
}
