int main()
{
    DriversLicense my_license1, my_license3("Superman", "01/01/1000");
    my_license1.printLicenseInfo(); // Prints the 5 data members on separate lines
    cout << endl;
    my_license3.printLicenseInfo();
    cout << endl;
    DriversLicense my_license2("Charlie Brown", "01/01/1980", "9201 University City Blvd. Charlotte NC 28223", 'm', "01/01/2020");
    my_license2.printLicenseInfo();
    cout << endl;
    cout << "Years to expiry " << my_license2.yearsToExpiry(2017) << endl;
    return 0;
}