Hi all,
I am new bird using Ruby, I just occur the problem "uninitiali zed constant Object::Person (NameError)"
can any experts help me?
my code is -
class Person
-
def initialize(fname, lname)
-
@fname = fname
-
@lname = lname
-
end
-
-
def to_s
-
"Person: #@fname #@lname"
-
end
-
end
-
-
person = Person.new("Yen", "Ta")
-
print person
-
-
-
class Employee < Person
-
def initialize(fname, lname, position)
-
super(fname,lname)
-
@position = position
-
end
-
def to_s
-
super + ", #@position"
-
end
-
end
-
-
employee = Employee.new("Augustus","Bondi","CFO")
-
print employee
-
1 7300
The 'Employee' file needs to require the 'Person' file. So, for example, at the top of the 'Employee' file, add Sign in to post your reply or Sign up for a free account.
Similar topics |
by: James A. Donald |
last post by:
I am contemplating getting into Python, which is used by engineers I
admire - google and Bram Cohen, but was horrified to read
"no variable or argument declarations are necessary."
Surely that means that if I misspell a variable name, my program will
mysteriously fail to work with no error message.
If you don't declare variables, you can inadvertently re-use an
variable used in an enclosing context when you don't intend to, or
|
by: RWC |
last post by:
Hello,
I'm having trouble converting code in Access XP / 2002. I have some code
that declares an variable "as database" in Access 97, which is not
recognized in Access XP. I've tried to find a refrence to the items that
have changed between 97 and XP, and haven't been able to find anything yet.
I will continue looking, but if anyone can shed some light on this fairly
quickly, I would appreciate it.
Thanks In Advance!
|
by: Joe |
last post by:
I need an Access application that can search dealers from my dealer
list, in a 30 miles distance from the user.
You may see many applications like this on the web if you search under
"find a dealer near you". Here is one I found:
http://www.shakespeare-antennas.com/content/dealersearch.asp
But I do not want to have it on the web, I want to create it on
access.
I think will need at least two tables:
|
by: Helge Jensen |
last post by:
I've got some data that has Set structure, that is membership, insert
and delete is fast (O(1), hashing). I can't find a System.Collections
interface that matches the operations naturally offered by Sets.
- ICollection cannot decide containment
- IList promises indexability by the natural numbers, which is not
achievable (since i hash elements, not sort them).
- IDictionary is definatly not setlike.
Although I can, of course, define...
|
by: lovecreatesbeauty |
last post by:
Both `K&R C, 2nd' and `C: A reference manual, 5th' introduce the
"hello, world" thing using the name "string-constant". But `ISO/IEC
9899:TC2' does not include this kind of thing in section `A.1.5
Constants'.
| |
by: laredotornado |
last post by:
Hi,
I'm using PHP 4.4.4 on Apache 2 on Fedora Core 5. PHP was installed
using Apache's apxs and the php library was installed to
/usr/local/php. However, when I set my "error_reporting" setting to be
"E_ALL", notices are still not getting reported. The perms on my file
are 664, with owner root and group root. The php.ini file is located
at /usr/local/lib/php/php.ini. Any ideas why the setting does not seem
to be having an effect? ...
|
by: jht5945 |
last post by:
For example I wrote a function:
function Func()
{
// do something
}
we can call it like:
var obj = new Func(); // call it as a constructor
or
var result = Func(); // call it as a function
|
by: Jeremy J Starcher |
last post by:
While reading c.l.j, I've noticed that some people prefer and indeed even
recommend the use of "window.alert()" over "alert()".
I can't find any technical reason to make this distinction, and seems to
have a (tiny) amount overhead since window itself points to the global
object, hence, a circular reference.
(From everything I am reading, window is just a REFERENCE back to the
global object, as opposed to a separate object.)
|
by: Adem |
last post by:
C/C++ language proposal:
Change the 'case expression' from "integral constant-expression" to "integral expression"
The C++ Standard (ISO/IEC 14882, Second edition, 2003-10-15)
says under 6.4.2(2) :
case constant-expression :
I propose that the case expression of the switch statement
be changed from "integral constant-expression" to "integral expression".
|
by: jorgejch |
last post by:
Hello, I've started with python (3) recently. Initialy only for scripting. Now I'm trying the object oriented bit.
I'm getting the following error message
<Atom.Atom object at 0x7f0b09597fd0>
Traceback (most recent call last):
File "./Main.py", line 7, in <module>
print (t.getAtomName())
File "/home/jorge/Documentos/projetos/mestrado/códigos/cartesian_zmatrix/Atom.py", line 22, in getAtomName
return atomName
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
| |
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
| |
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
|
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
| |