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• Interview Question: Why we can not create object of abstract class.

  - by MAS1

  In interview someone ask me @ Abstract class. I told him @ abstract class and i also told that we can not create object of this class. his next question is why? because it may or may not include abstract methods.

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• How can I load a web page inside of a jQuery dialog box?

  - by kielie

  Hi, I am designing a wordpress template, and I would like to use jQuery ui to display each of the calendar links in a dialog box, when they are clicked. What I want, is when someone clicks on a link in the wordpress calendar, the content will load in the dialog box, and display over the calendar. I would appreciate any help on this, thanx in advance!

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• Front-end developer interview questions

  - by peirix

  There are a lot of good interview questions (even "puzzles") for software developers here on SO, but I was wondering if anyone had some good questions for a front-end developer position. We're looking for someone who knows HTML+CSS+JS. Some of the obvious questions: Have you worked with javascript libraries (which?) Are you following the development of HTML5 and CSS3 Do you know any good "puzzles" for a front-end developer? Maybe a JS fizz-buzz?

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• Use the serialVersionUID or suppress warnings?

  - by Okami

  Dear all, first thing to note is the serialVersionUID of a class implementing Interface Serializable is not in question. What if we create a class that for example extends HttpServlet? It also should have a serialVersionUID. If someone knows that this object will never be serialized should he define it or add an annotation to suppress those warnings? What would you do and why? Thanks for sharing your thoughts. Okami

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• JQuery class selectors like $(.someClass) are case sensitive?

  - by Justin Grant

  Given this HTML: <div class="OpenIDSelector">some text</div> Why does this JQuery selector match it on some browsers and some pages, but not on others? $('.OpenIdSelector) NOTE: I ran into this problem and solved it myself, but it was annoying and I didn't find it on StackOverflow already, so I'm posting it as a Q&A pair so someone else won't waste an hour like I did.

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• Resize form objects in Java

  - by PeerFull

  I have a Java applet, which is a form that draw shapes into it (Rect, Oval, Line). Each shape is represented by 2 points and can draw itself to the form. When the JApplet form resizes, I need to resize the shapes also while keeping the aspect ratio. I didn't find an high quality solution for doing this that solves this problem. Tried to write a solution from this, but it came up as lousy when tested, Can someone publish an example code for doing that please?

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• Tear subString from within HTML tags with JAVA

  - by asaf

  Hi! let say i have a string like this "neverMindWhat is upneverMind" and I want to take out the What is up using regexp with JAVA. Someone told me that using matcher will be the best. Can anyone show me how to do it using Matcher? Other solutions are welcome too! Thanks!

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• VB.NET Interfaces

  - by PJ

  I am not quite clear as to why or when to use Interfaces. Can someone post a complete, simple and small example of an Interface using VB.NET in a Console Application. How is it extensible?

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• Using an ObjectCollection as a parameter create a new Control?

  - by Luis

  I was using something like public int Test(System.Windows.Forms.ListBox.ObjectCollection Colecction) { } With this I want to pass just the ObjectCollection of the control, to sort, add and delete elements without passing the entire control, but someone told me that, this way of calling the collection, actualy, create an entire ListBox, making it a worst decition, than, passing a ListBox as a parameter. Is it true? An if, what's the best way of working whit the collection?

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• How to detect when an attribute is modified by calling reflection methods

  - by Oleg Pavliv

  I have the following class public class MyClass { private int myAttr; public void setAttr(int a) { myAttr = a; Thread.dumpStack(); } } That way I can detect any attempt to modify myAttr. Well, almost any. It does not work when someone modifies myAttr using Field.set() method. How can I trap Java reflection usage?

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• Interview Questions: Is IDisposable hard to understand?

  - by Jonathan Allen

  I've been interviewing a lot of .NET programmers lately and I haven't met one that knows what IDisposable is or what it is used for. Is it really unreasonable to expect someone with 4-6 years experience to know that?

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• Create MSI from a base MSI which requires a public property

  - by krk

  I have a msi with a public property CUSTOMERID. This is the base MSI. When customer logs in to download the MSI, downloaded MSI should have the CUSROMERID set based on the login. Basically I want to create a custom MSI with public property set from a base MSI so that the customer can redistribute it to his users. Can someone help with this.

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• Ajax & Forms Question (Looking for Resources)

  - by Paul

  I have a select form. After a user selects option A, B, or C I need to use Ajax to load another form based on the users decision. I'm not asking for someone to program this for me. I am just wondering, does anyone know of any good resources to help me accomplish this? Thanks for your time.

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• Android dev time vs iPhone dev time

  - by Daniel Benedykt

  Hi IF someone has to develop the same application for Android and iPhone, is it more difficult to develop in one platform than on the other? Does it take more time? Lets think about the average app. Lists, text , buttons, fetch information from the internet. Thanks

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• jquery find h2 tags and append into div

  - by SoulieBaby

  Hi all, I'm trying to write a bit of jquery which finds all h2 tags inside a div (.content), then appends each one into another div (.intro). So far I have this: var h2 = $(".content").find("h2"); $(h2).each(function() { $(this).append(".intro"); }); But it's not working.. if someone could help me out, that'd be great :)

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• How do I create an NSArray with string literals?

  - by Kyle

  I'm attempting to create an NSArray with a grouping of string literals, however I get the compile error "Initializer element is not constant". NSArray *currencies = [NSArray arrayWithObjects:@"Dollar", @"Euro", @"Pound", nil]; Could someone point out what I'm doing wrong, and possibly explain the error message?

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• How to learn about iPhone jailbroken programming?

  - by tomorini

  I'm interested in learning about what additional features and APIs an app has access to when an iPhone is jailbroken. Can someone provide me with some basic resources to learn about this? I would be most interested in: documentation on the private APIs filesystem layout app configuration, e.g. how did WinterBoard replace SpringBoard? Apps that replace the lockscreen? tools needed Suggestions appreciated.

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• Align 2 sets of 2D point clouds

  - by user108088

  From what I gather, there are two major methods to perform alignment on point clouds, Iterative Closest Point (ICP) and Particle Filtering. What are the advantages of each method? And can someone point me some good tutorials. For what I am currently doing, I think ICP would be easier, I can't seem to find any simple reference implementations online for 2d point sets. Has anyone seen (psuedo)code for ICP with details on the transformation step? Thanks in advance.

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• Codeigniter - how to use the foreign keys from one table to look for the id's of another table.

  - by Drew

  I'm having a problem trying to wrap my head around how to query the database to retrieve the foreign keys in my Nav table and then using those to find the id's in the NavItem table. Can someone point me in the right direction or give me some pointers? i'm not even sure if this should be done in the model or the controller! Thanks in advance

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• USB token with certificate

  - by Frengo

  Hi all! Someone could explain me how the USB token works? I have to implement that secure layer in a java application, but i don't know very well how it works! I know only the mecanism of a normal token key generator! Thanks a lot!

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• New to HBase. I need help as I'm new to HBase, but use to SQL.

  - by WackoMax

  Hi there I'm use to SQL, but I need to read data from a HBase table. Any help on this would be great. A book or maybe just some sample code to read from the table. Someone said using a scanner would do the trick, but I do not know how to use it.

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• Count number of lines in CSV with Javascript

  - by alvincrespo

  I'm trying to think of a way to count the number of lines in a .csv file using Javascript, any useful tips or resources someone can direct me to?

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• How to search for obtaining the "best" result

  - by stighy

  Hi guys, suppose someone enter this search (on an form): Nicole Kidman films Which SQL i can use to find "the best" results ? I suppose something like this : SELECT * FROM myTable WHERE ( Field='%Nicole Kidman Films%' OR Field='%Nicole%' OR Field='%Kidman%' OR Field='%Films%' ) My question is how to get most relevant result ? Thank you very much!

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• How to PlaySound in C++

  - by user189748

  i try to play a music file in my coding, but failed. i have my music file in the same folder which save .cpp file. can someone help me? my code is: #include <iostream> #include <windows.h> int main() { PlaySound("kenny g.WAV", NULL, SND_ASYNC); }

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• post and pre increment in c

  - by jammkie same

  void main() { int a=2 , c; c=a++ + ++a + ++a + ++a; printf("%d",c); } prints 20, whereas void main() { int a=2; int c=a++ + ++a + ++a + ++a; printf("%d",c); } prints 17. Can someone explain the reason for this.

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