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by: George Sakkis |
last post by:
I'm looking for a design to a problem I came across, which goes like
this (no, it's not homework):
1. There is a (single inheritance) hierarchy of domain classes, say
A<-B<-..<-Z (arrows point to the parent in the inheritance tree).
2. This hierarchy evolved over time to different versions for each
class. So for example, version's 1 hierarchy would be A_v1 <-B_v1
<-..<-Z_v1.
3. At runtime, only one version is selected by a factory...
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by: Robert Brown |
last post by:
I have a deadlock that's happening on one oracle instance but cannot
be reproduced on any other. It is always caused by the same SQL
statement colliding with itself and only happens under very high load.
The statement is
DELETE from userlogins WHERE numlogins <= 0
the schema for the userlogins table is
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by: Richard Williamson |
last post by:
Hi all,
I am trying to create a query which will select the inverse of the
records returned.
Scenario:
Member(MEMBERID,name, address,etc)
Video(VIDEOID, title, certificate, etc.)
Rentals(RENTALID, memberid, videoid, datedueback, returned)
The videos currently rented out are the ones where returned = no. How
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by: Sue & Bill |
last post by:
I attach the following code and output. I Add an object to a
Collection. I modified a property of the object. The item in the
Collection gets modifed also. Can you help me determine where I have
gone wrong. Thanks.
public class Shape
{
protected Size _size;
protected Point _location;
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by: Robert Baer |
last post by:
I used Google and found some references for integer in Java.
But "int" not only does not work, it also prevents reading X and Y
coordinates of the mouse.
What i would like to do:
1) Get X and Y mouse coordinates into a variable that i can do real math on.
So far, i can do math on the values "read" and that result goes into
a "variable" that is useful *only* for display.
If i try "int" in that math, the values are then zero for everything...
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by: Raoul Watson |
last post by:
I have used isNull statement for as long as I have used VB..
Recently I am devugging a program and it is very clear that the "IsNull"
function sometimes would return a true even when the value is not Null. Any
wild shot or theory as to why this is happening is appreciated. Also, any
other alternative is appreciated since I am stuck and cannot proceed without
fixing this issue (tried = Null and that doesn't work either).
Basically, I...
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by: ivanet |
last post by:
Hello everyone,
I am trying to use the following Schema but I get the error "src-
resolve: Cannot resolve the name 'ValuesList' to a(n) 'element
declaration' component." at line 144.
I have been reading http://www.w3.org/TR/xmlschema-1/#src-resolve, but
I don't get what is wrong. Can anyone give me a hint?
Thanks in advance.
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by: noddy |
last post by:
I have come across this code in a js file.
It uses the function constructor in a way I have never seen.
Can someone explain what is happening here?
Thanks
(function(){
...lines of code...
} ) ();
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by: Rajeet Dalawal |
last post by:
Good day group.
I was asked in an interview to explain the behavior of this program.
void main()
{
char *s = "abc";
int *i = (int *) s;
printf("%x", *i);
}
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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...
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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,...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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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...
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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();...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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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
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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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...
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