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• Where does the "Hello World!" example come from?

  - by CFP

  "Hello world!" is the most commonly used example I can think of, yet I don't really know where it came from. Was it used by some particular book, or did it just spread among developers? Did people write "Hello world!" snippets in COBOL or FORTRAN ?

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• IIS Redirection - command line

  - by clklachu

  I have a website say www.mywebsite.com/demo . When ever if anyone requests this site, i want to navigate to another website www.myanotherwebsite.com . I know that this can be done in IIS by using the HTTP Redirect feature. But since i want to do this for different websites, I would like to write a bat file which would run the command to set the redirect url for a website. Can anyone please help me how to set the redirection URL through command line?

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• Is there any difference between "foo is None" and "foo == None"?

  - by Joe Shaw

  Is there any difference between: if foo is None: pass and if foo == None: pass The convention that I've seen in most Python code (and the code I myself write) is the former, but I recently came across code which uses the latter. None is an instance (and the only instance, IIRC) of NoneType, so it shouldn't matter, right? Are there any circumstances in which it might?

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• iPhone + Android App to view Blog

  - by Pratik

  What would be the best way to write an app for the iPhone OS and the Android OS that allows access to a web blog (posted on blogspot.com)? Are there ways to manipulate the incoming data from the website to fit the UI of the phones, or will I have to re-do a lot of the blogs? Any help would be nice! And thank you in advance!

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• Simplest way of persisting Java Objects using Apache Camel ?

  - by sanre6

  Can JDBC component be used for inserting Java objects into a Mysql database ? I want to store Java objects that i am routing through message exchanges into a database using spring xml . i have never used hibernate before , so cannot use the hibernate or JPA components Ex Code : <from uri="bean:MessageProducer?method=send" /> /* bean sending the objects */ /* what code do i need to write for insertion of these Objects into testdb */ <to uri="jdbc:testdb"/>

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• MySQL Queries using Doctrine & CodeIgniter

  - by 01010011

  Hi, How do I write plane SQL queries using Doctrine connection object and display the results? For example, how do I perform: SELECT * FROM table_name WHERE column_name LIKE '%anything_similar_to_this%'; using Doctrine something like this (this example does not work) $search_key = 'search_for_this'; $conn = Doctrine_Manager::connection(); $conn->execute('SELECT * FROM table_name WHERE column_name LIKE ?)', $search_key); echo $conn;

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• Rails: How to to download a file from a http and save it into database

  - by Chris

  Hi, i would like to create a Rails controller that download a serie of jpg files from the web and directly write them into database as binary (I am not trying to do an upload form) Any clue on the way to do that ? Thank you Edit : Here is some code I already wrote using attachment-fu gem : http = Net::HTTP.new('awebsite', 443) http.use_ssl = true http.verify_mode = OpenSSL::SSL::VERIFY_NONE http.start() { |http| req = Net::HTTP::Get.new("image.jpg") req.basic_auth login, password response = http.request(req) attachment = Attachment.new(:uploaded_data => response.body) attachement.save } And I get an "undefined method `content_type' for #" error

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• Is a return statement mandatory for C++ functions that do not return void?

  - by AlwaysLearning

  My Herb Schildt book on C++ says: "... In C++, if a function is declared as returning a value, it must return a value." However, if I write a function with a non-void return type and do not return anything, the compiler issues a warning instead of an error: "Control reaches end of non-void function." I use gcc (MinGW) and have set the -pedantic flag.

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• Can I host an ASP.NET webite outside of IIS?

  - by boraer

  Hi everybody, I need to write an ASP.NET application which must handle a very large number of transactions per second - as many as 5000 users may transact at the same time. I think I will use WCF in back to communicate with SQL server. But in front, can IIS handle 5000 users at the same time effectively, or is there any simple way to host my application outside of IIS?

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• UnicodeDecodeError in pyton 2.7

  - by user2913962

  i try to write this code to process Arabic language by python import codecs file = codecs.open("C:\Python27\CCA_raw_utf8.txt","r","utf-8") text= file.read() #################################### print "\n "," --------------------------------------------" text=text[1:] words=text.split() for w in words: if w == unicode ("?????","utf-8"): print w but it doesn't and take error " if w == unicode ("?????","utf-8"): UnicodeDecodeError: 'utf8' codec can't decode byte 0xc7 in position 0: invalid continuation byte " why program gives this result and how we can correct that??

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• Getting the physical path

  - by Brigadier Jigar

  I have to fetch all the files from a folder and i am using the function GetFiles() like string[] dirImages = Directory.GetFiles(strPathYearImages + intYear , "*.png"); where strPathYearImages="Images\Holiday\2010\" but when i write the whole path like string[] dirImages = Directory.GetFiles(@"E:\IWP\Images\Holiday\"+ intYear , "*.png"); i get the required result. How to solve this problem? I dont want to use the whole path. Help me out. Regards, Jigar <3

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• Saving Data to Registry on Windows 7

  - by Jim Fell

  I heard that Windows 7 restricts access to its registry, so that applications cannot write directly to it. Is this so? I am developing an application in C#, and I would like to be able to save things such as port settings, last file used, etc. between sessions. Is the registry still a good option, or is there another preferred means of doing this now? Thanks.

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• Does the Dalvik file format (*.dx) support more instructions than a Java .class file?

  - by soc

  Is there anything the Dalvik VM supports (in terms of bytecode) which is not used currently because the .class files don't have it? As an example, if people would write their own Source-to-DX converter for their functional language XYZ, would they be able to implement e. g. full tail calls although the .class file does support tail calls only under certain circumstances?

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• iPhone: What are the Advantages and Disadvantages of Developing with CSS/Javascript?

  - by yakub_moriss

  There are alternatives to developing for iPhone besides the native Objective-C API. In particular, there are CSS/Javascript based solutions such as the iUi Framework. Can you write successful iPhone apps with CSS/Javascript? Does Apple approve such apps? What are the advantages and disadvantages of using this approuch? Thanks in advance.

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• XSD Code Generator

  - by George Stocker

  Are there any Code Generators that would take a well-formed XML document, and write out an XSD schema based on how the XML document is structured?

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• How to create temporary files in memory visible for other process, using python

  - by LazyMiha

  Hello! I`m trying to write simple batch file generator in python. Batch file consist of about 30-50 lines of text and is passed to other applications. During the execution of script there a lot of calls to external applications. I want to create file in memory (like named pipes in win32). Is there any platform independ way? p.s. sorry for possible mistakes in text, I'm still learning English

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• Calling function with 1 paremeter @ selector.

  - by Mr. McPepperNuts

  I want to call this guy -(void)addFavorite:(NSString *)favoriteToAdd at, @selector here action:@selector([addFavorite favoriteToAdd:@"string"])]; But I keep getting syntax error no matter which way I write it. Can someone point out the appropriate way to call this function? When it had no parameter and was "addFavorite," it worked fine.

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• Python: Streaming Input with Subprocesses

  - by beary605

  Since input and raw_input() stop the program from running anymore, I want to use a subprocess to run this program... while True: print raw_input() and get its output. This is what I have as my reading program: import subprocess process = subprocess.Popen('python subinput.py', stdout=subprocess.PIPE, stderr=subprocess.PIPE) while True: output=process.stdout.read(12) if output=='' and process.poll()!=None: break if output!='': sys.stdout.write(output) sys.stdout.flush() When I run this, the subprocess exits almost as fast as it started. How can I fix this?

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• I'm writing a game and would like a console, is it possible to dump javascript's console to a div in

  - by RobertWHurst

  I'm writing a game an I've got a console for developers to interact with javascript methods in the game. I have a problem though, I can figure out how to drop javascript errors to the console. is there anyway to write errors to a div or HTML element?

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• unobtrusive "default" text in input WITHOUT jQuery

  - by Adam Kiss

  Hello, i'm trying to write unobtrusive default/placeholder text in input (actually, relatively placed label over input, which hides on onFocus, and stays hidden if input isn't empty on onBlur), but I don't want to use jQuery, because this is the only javascript used on page - therefore using jQuery seems a bit over the top. Please, how can I do this without jQuery? Thank you.

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• zend studio encoding problem

  - by Syom

  i used Zend Studio for eclipse, and now i have a problem with encoding. when i try to write text in foreign language, it doesn't understand the font. but in browser it shows normally. i've set then default encoding to UTF-8, but it doesn't work. could you help me. Thanks

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• how do i specify connection parameters on the command line to run mysql in batch mode?

  - by hmak

  I need to be able to write a script to automatically connect mysql in batch mode so that I can run some .sql files. I tried to enter the following at the prompt: ./mysql -u root -p mypassword but I keep getting a "Enter password: " prompt. What am I doing incorrectly? Thanks.

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• Can I lock tables in an IF statement in MySQL?

  - by MalcomTucker

  This is throwing a syntax error - --from body of a stored proc IF (name = in_name) SET out_id = temp; ELSE LOCK TABLE People WRITE; INSERT INTO People (Name) VALUES (in_name); UNLOCK TABLE; SELECT LAST_INSERT_ID() INTO out_id END IF do I have to lock any tables I need at the start of the SP?

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• Does a syntax for this exist? In any language?

  - by Michael

  It seems pretty common to me to have an argument, in a dynamically typed language that is either an Object or a key to lookup that object. For instance when I'm working with a database I might have a method getMyRelatedStuff(person) All I really need to lookup the related stuff is the id of the person so my method could look like this in python: def getMyRelatedStuff(person_or_id): id = person_or_id.id if isinstance(person,User) else person_or_id #do some lookup Or going the other direction: def someFileStuff(file_or_name): file = file_or_name if hasattr(file,'write') else open(file_or_name)

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• How would you convert a String to a Java string literal?

  - by Simon Nickerson

  This is sort of the Java analogue of this question about C#. Suppose I have a String object which I want to represent in code and I want to produce a string literal that maps to the same thing. I was just about to write a state machine that ingests the string character by character and escapes appropriately, but then I wondered if there was a better way, or a library that provides a function to do this.

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