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• DataOutputStream, does it lose some bits

  - by user308806

  hello, I'm writing a client server application, but I don't receive the same bytes at the client side when they are sent from the server side. At the server side I used .write(bytes[]) method. At the client side, I used .readFully(byte[]) method. Do you have any idea ?

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• please tell me if it is correct

  - by davit-datuashvili

  i have write bellow at this link http://stackoverflow.com/questions/2896811/question-about-siftdown-operation-on-heap code above ritten is pseudo code and i am interested if according to pseudo code my program is correct?

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• How to query by recent date and value in SQL?

  - by wsb3383

  I have a table with three columns: patient_id, obs_date, and weight_val. patient_id stores patient identification #, weight_val stores a weight value, and obs_date stores the date when the weight reading was taken. So, a patient can have many different weight readings at different dates. How do you write a query for: select all patients whose last weight reading is 120?

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• Building a simple mp3 music player

  - by wantoknow

  It is possible for me to write a simple mp3 music player? If yes, how should I go about building it? Are there any online resources that can help?

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• Set seed on Math.random()

  - by Kevin

  Hi - I need to write some junit tests on java code that calls Math.random(). I know that I can set the seed if I was instantiating my own Random object to produce repeatable results. Is there a way to do this also for Math.random() ?

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• What ways are there to edit a function in R?

  - by Tal Galili

  Let's say we have the following function: foo <- function(x) { line1 <- x line2 <- 0 line3 <- line1 + line2 return(line3) } And that we want to change the second line to be: line2 <- 2 How would you do that? One way is to use fix(foo) And change the function. Another way is to just write the function again. Is there another way? (Remember, the task was to change just the second line)

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• C++ operator[ ] on integer litteral

  - by gregseth

  I found this piece of code: char a = 1["ABC"]; A few quick test led me to the fact it was the same than writing: char a = "ABC"[1]; Which seems far more logical to me. So my questions: Why is this notation valid? Is there any reason to write something that way?

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• How to implement unix ls -s command in C?

  - by Annonymous

  I have to write a program in C which returns file size in blocks just like ls -s command. Please help.

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• Counting the instances of customers

  - by Mikae Combarado

  Say that I have a table with one column named CustomerId. The example of the instance of this table is : CustomerId 14 12 11 204 14 204 I want to write a query that counts the number of occurences of customer IDs. At the end, I would like to have a result like this : CustomerId NumberOfOccurences 14 2 12 1 11 1 204 2 14 1 I cannot think of a way to do this.

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• "The operation has timed out" when trying to send email

  - by user1718859

  protected void Button1_Click(object sender, EventArgs e) { try { SmtpClient sm = new SmtpClient(); MailMessage ms = new MailMessage(); ms.To.Add(new MailAddress(TextBox1 .Text )); ms.Subject = TextBox2.Text; ms.Body = TextBox3.Text; ms.IsBodyHtml = true; sm.Send(ms); } catch (Exception el) { Response.Write(el.Message); } }

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• Is there a way to print a new-line when using <Message...> ?

  - by Nam Gi VU

  I wanna write but \n seems not to be working. What should I replace \n with? (I read in the books they said that to print @ and % we use %40 and %25, so I guess the should be a number for the new-line).

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• Windows [C++] - Creating new folders if they don't exist for fopen

  - by Gbps

  I have a C++ program that takes user input for fopen in order to initiate a file write. Could someone help me find a function which will return a FILE* and use the Windows specific version of mkdir in order to create the folder structure for fopen to never fail to open a new file in the specified location because one of the folders does not exist. Thanks a bunch!

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• Fake output stream type

  - by Jeenu

  By default certain programs format their output according to the type of the stream they write to. For example, the output of ls and ls > file looks differently. I'd like to know how this is achieved by a program. Additionally, is there a way by which we can trick such programs as if the output stream is a terminal where it actually is a file (especially when they don't have any options that affect output formatting)?

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• Programmable RAM Disk API for .NET?

  - by jdk

  Looking for a RAM disk library to store file temporarily for fast read/write operations. update Exe files will be written to the disk and executed.

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• dealing with a large flat data files with a very big record length

  - by gsp

  I have a large data file that is creatd from a shell script. Next script processes it by sorting and reading several times, that takes more than 14 hours, it is not viable. I want to replace this long running script with a program, probably in JAVA, C, or COBOl, that can run on windows or on sun solaris. I have to read a group of records everytime, sort and process and write to the output sort file and at the same time insert into db2/sql tables.

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• MYSQL UPDATE with IN and Subquery

  - by Johal

  Hi i have tables like this : table entry : id | total_comments ___________ 1 | 0 2 | 0 3 | 0 4 | 0 table comments : id | eid | comment ___________ 1 | 1 | comment sdfd 2 | 1 | testing testing 3 | 1 | comment text 4 | 2 | dummy comment 5 | 2 | sample comment 6 | 1 | fg fgh dfh Query i write : UPDATE entry SET total_comments = total_comments + 1 WHERE id IN ( SELECT eid FROM comments WHERE id IN (1,2,3,4,5,6)) Results i get is : table entry : id | total_comments ___________ 1 | 1 2 | 1 3 | 0 4 | 0 Expected results : table entry : id | total_comments ___________ 1 | 4 2 | 2 3 | 0 4 | 0 Any help will be appreciated.

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• encode video is reverse?

  - by bob

  Hi, Does anyone know if it is possible to encode a video using ffmpeg in reverse? (So the resulting video plays in reverse?) I think I can by generating images for each frame (so a folder of images labelled 1.jpg, 2.jpg etc), then write a script to change the image names, and then re-encode the ivdeo from these files. Does anyone know of a quicker way? This is an FLV video. Thank you

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• Rewriting a statement using LINQ(C#)

  - by Thinking

  Is it possible to write the folowing using lambda(C#) private static void GetRecordList(List<CustomerInfo> lstCustinfo) { for (int i = 1; i <= 5; i++) { if (i % 2 == 0) lstCustinfo.Add(new CustomerInfo { CountryCode = "USA", CustomerAddress = "US Address" + i.ToString(), CustomerName = "US Customer Name" + i.ToString(), ForeignAmount = i * 50 }); else lstCustinfo.Add(new CustomerInfo { CountryCode = "UK", CustomerAddress = "UK Address" + i.ToString(), CustomerName = "UK Customer Name" + i.ToString(), ForeignAmount = i * 80 }); } }

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• HOW TO RETURN VALUE FROM FUNCTION? (c#)

  - by Ole Jak

  So... I want to return value when C# function is called. I need a code example (simple summ of a,b values will be ok) Please help I need something like this ( I know ActionScript so I will write in it): public function sum(valueA:int, valueB:int):int { var summ:int = valueA + valueB; return summ; } How to translate it into C#?

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• Is adaptive streaming (live http streaming) required of iphone apps that play video?

  - by jtw12

  We are creating a video intensive app and want to be sure that adaptive streaming is required (given that we need to write an automated transcoding and segmentation system to support this). Does anyone know if the YouTube app is using adaptive streaming?

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• Get records from a specific month using SQLite

  - by soren121

  How would I write a SQLite query to select all records from a specific month? My dates are stored as Unix timestamps. PHP code is allowed in your solution if it's required. SQLite2-compatible queries only, please. :)

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• image url helper for sinatra?

  - by yaya3

  I'm looking for an image url helper for sinatra that allows me to do something similar to staticmatic's, where I can shortcut to a relative path like so... =img "me.jpg" Can anybody point me in the direction to where this might be online, or where I could learn how to write one, or provide an example of one they have already written Many thanks

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• Passing C string reference to C#

  - by user336109

  c code extern "C" __declspec(dllexport) int export(LPCTSTR inputFile, string &msg) { msg = "haha" } c# code [DllImport("libXmlEncDll.dll")] public static extern int XmlDecrypt(StringBuilder inputFile, ref Stringbuilder newMsg) } I got an error when I try to retrieve the content of newMsg saying that I'm trying to write to a protected memory area. What is the best way to retrieve the string from c to c#. Thanks.

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• What's the best practice in case something goes wrong in Perl code?

  - by Geo

  I saw code which works like this: do_something($param) || warn "something went wrong\n"; and I also saw code like this: eval { do_something_else($param); }; if($@) { warn "something went wrong\n"; } Should I use eval/die in all my subroutines? Should I write all my code based on stuff returned from subroutines? Isn't eval'ing the code ( over and over ) gonna slow me down?

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• How to posting to WordPress using C# ?

  - by Shinichi

  Hi, I want to write a program that can post data into WordPress using C# via POST method. I have no idea to do that. I hope someone help me some ideas. WordPress have any API support that ? Thanks !

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