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• In java what is the diference between an object and a class?

  - by David

  In java what is the diference between an object and a class? The book i'm working from made it seem as though once a class is created it also exists as an object.

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• How to share contacts?

  - by prathumca

  Hi All, By using IPhone SDK (on a jail broken iPhone), how can I share a contact (.vcf file) through mail as same as the address book is doing? Regards, Prathap.

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• python `IN` module problem (FreeBSD)

  - by Shamanu4

  I'm trying to work with sockets and I have such problem In code example: setsockopt(socket.SOL_SOCKET,IN.SO_BINDTODEVICE,self.listen_address+'\0') I have error AttributeError: 'module' object has no attribute 'SO_BINDTODEVICE' On Linux machine this attribute is OK but on FreeBSD trere are no any SO_* attributes in module IN. What port should I install to resolve this problem on FreeBDS machine? Python versions on Linux tested: 2.5.4 and 2.6.4; on FreeBSD: 2.5.5 I can't find anything about this module in my book, and googling keyword IN looks like seamless ...

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• yes another question about Interfaces?

  - by sam

  Hi Guys, I started commercial programming lately, I am used to functions, then now I always questions about interfaces.. Do you provide me with some links and book names, that can explain deeply why using interfaces? is interfaces required for small projects?? I am using C#. thanks

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• What does an "interface extends interface" relationship look like in UML?

  - by Martin Doms

  In Java it's perfectly legal for an interface to extend an interface. Does this relationship in UML look like an "extends" relationship (solid line, closed, unfilled arrowhead) or an "implements" relationship (dotted line, close, unfilled arrowhead)? I can't seem to find an example of this relationship either online or in Fowler's book.

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• Resources for writing kernel in C

  - by anon

  I don't want to write my own boot loader -- happy to use Grub. I just want to implement pre-emptive multi threading, a basic file system, and virtual memory. I want something that can run on top of qemu. What's a good resource (book / tutorial) for accomplishing this goal? Thanks!

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• Why is Model.scoped generating invalid SQL?

  - by Nicholas H.

  When I run Book.scoped({:conditions => ['books.index LIKE ?','%query%']}) I get: ActiveRecord::StatementInvalid: SQLite3::SQLException: near "index": syntax error: SELECT * FROM "books" WHERE (books.index like '%query%') What am I doing wrong?

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• How to draw two different possiblity of query tree for the example? in ddbms

  - by quin

  select topic from book b, share s, stall st where b.b#=s.b# and st.store#=s.store# Hi friends, i am trying to draw query tree i dont know how to draw query tree for above example. can you help me in that. thanks in advance

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• In Java why would one intialise an int variable with 0 when it will be assigned 0 only by default wh

  - by happysoul

  What purpose does it serve ? Just read an example in a book where the author has done so. int numOfGuesses=0;

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• Converting part of a multi-purpose XML file to RSS using XSL

  - by Nate McCloud

  I have an XML file that I use for storing and displaying recipes that I collect, but that same XML file also has updates for the site at the top of it. How would I, say, use Recipes.xsl to transform Recipes.xml for display as an actual website, and use RecipesRSS.xsl to transform Recipes.xml into Recipes.rss? Currently, my XML file is formatted something like this: <book> <updates> <update when="2010-04-19"> <format> <update>Formatting updates here, if any. Otherwise, omit the Format section.</update> ... </format> <recipes> <update>Recipe updates here, if any. Otherwise, omit the Recipes section.</update> ... </recipes> </update> ... </updates> <recipe name="Recipe Name"> <from>Recipe source</from> <category>Recipe category</category> <ingredients> <ingredient>Recipe ingredient</ingredient> ... </ingredients> <instructions> <step>Recipe instructions go here.</step> ... </instructions> <notes> <note>Additional notes go here, if any. Otherwise, Notes section is omitted.</note> ... </notes> </recipe> ... </book> Any help would be greatly appreciated.

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• Can you get the current user's phone # and contact details through the iPhone SDK?

  - by faceyspacey.com

  As far as I can tell, I can only get the entire address book, but there is no way to know which (if any) contact is the contact information for the owner of the phone, i.e. the phone # of the phone itself. Is there any way to accomplish this? Perhaps by triangulating some data the SDK makes available?

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• Why does Java uses heap for memory allocation?

  - by happysoul

  I just read this statement in a java book saying Objects in java reside on a heap. Is a heap used because it is the best way to store data and retrieve data fast ? I only have an idea about data structures being a beginner. I mean why not stack or something else ?

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• search and display string from group of string php

  - by zahir hussain

  hi i want to know how to search and display string from group of string like google display the word which we search... the following example from google search word is google books result Search and preview millions of books from libraries and publishers worldwide using Google Book Search. Discover a new favorite or unearth an old classic. i would like to do this type of one... thanks and advance

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• Webmail Contact List Importer

  - by Andy Jarrett

  Does anyone know of a Webmail Contact List Importer scripts (ColdFusion, PHP etc) like those used on Twitter and LinkedIn ? I've found some but they are paid for and I want some more bespoke & open. To clarify a little more I'm not looking for a way to process .csv files :) I'm looking for a bit of code that can logging into gmail, yahoo mail, hotmail, aol and pull out the users address book.

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• Learning Javascript in one weekend?

  - by dueyfinster

  Similiar to this question, I am wondering if experienced Javascript developers have any websites they use with examples to get the basics of Javascript down in 24/28 hours? I have looked at Douglas Crockford's Google Tech Talk and I bought the book "Javascript: the good parts" but I haven't had time to read it.

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• What is a good Perl CGI tutorial?

  - by ungalnanban

  I am going to learn Perl CGI. Please suggest a good URL or book for a CGI tutorial.

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• Where can i find exercises for familiarising OOPS

  - by CrazyBoy123

  Now that i have learned the theory of OOPS in good number of books , and practised a little. Still i am not comfortable when i look into OOPS being applied in some of the Open Source projs. Can someone suggest any problem / solution kind of book , or any resources , that covers OOPS end - end. (C# , Java preferably)

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• How to use profiler?

  - by Knowing me knowing you

  Very often I hear: use profiler, do unit test. How to do it? I would be glad if someone would provide either links to websites with tutorials or recommend a good book. I'm using Visual Studio 2010 Ultimate.

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• How to use crystal reports with php

  - by SpikETidE

  Hi everybody... I need to use crystal reports with php... I googled around for a long time but was not able to find a good tutorial or book that will explain the process easily and efficiently... Can anyone point me towards a place where i can get a simple tutorial about using crystal reports with php....? Thanks a lot for your suggestions......

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• What is the most efficient way to learn x86 assembly?

  - by Web Des

  I want to learn x86 assembly and I want to know if learning reverse engineering is a good way to learn it? Also I have some c++ knowledge of pointers, stack, heap , references, etc.. I was considering this book. http://www.amazon.com/Reversing-Secrets-Engineering-Eldad-Eilam/dp/0764574817/ref=sr_1_1?s=books&ie=UTF8&qid=1340420512&sr=1-1&keywords=reverse+engineering Also Is reverse engineering the same as what they call disassembly?

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• List of Character Encodings

  - by helpme

  Is There A Book or Site That Teaches And Also Includes A Complete List of Character Encoding's That Includes Hexadecimal, Decimal and Name Versions? If you can name a couple of books and sites, that would be very helpful thank you.

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• what is a fun beginner project?

  - by Atticum

  I am learning HTML and I have a good book to learn with but my cousin told me that I should pick a fun project to learn how to program but im not sure what I should do. what is the most fun project to do when you are learning HTML?

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• Use Shakespeare-text and external file

  - by Adam

  How can I convert the below example to use an external file instead of the embedded lazy text quasi quotes? {-# LANGUAGE QuasiQuotes, OverloadedStrings #-} import Text.Shakespeare.Text import qualified Data.Text.Lazy.IO as TLIO import Data.Text (Text) import Control.Monad (forM_) data Item = Item { itemName :: Text , itemQty :: Int } items :: [Item] items = [ Item "apples" 5 , Item "bananas" 10 ] main :: IO () main = forM_ items $ \item -> TLIO.putStrLn [lt|You have #{show $ itemQty item} #{itemName item}.|] This is from the yesod online book.

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• using LARGE_INTEGER gives me back error error C2679: '=' binary no operator found which takes a right-hand operand

  - by rekotc

  i have the following code: QueryPerformanceCounter(&timeStart); winMain::render(); //do stuff QueryPerformanceCounter(&timeEnd); numCounts = ( timeEnd.QuadPart - timeStart.QuadPart); All the 3 variables are declared as LARGE_INTEGER, the code should work since im following a book example, but i get: error C2679: '=' binary no operator found which takes a right-hand operand of type LONGLONG it might be '_LARGE_INTEGER &_LARGE_INTEGER::operator =(const _LARGE_INTEGER &)' 1 durante la ricerca di corrispondenza con l'elenco di argomenti '(LARGE_INTEGER, LONGLONG)'

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• About High Availabiltity

  - by Invincible

  I know this is not perfect place to ask this question. Can anybody suggest some good resource or book on High-Availability? I want to learn as much as I can on high-availability before start building my system. Thanks in advance!

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