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  • Better alternative for PipedReader/PipedWriter?

    - by Esko Luontola
    I need to have a buffered char stream, into which I write in one thread and from which I read in another thread. Right now I'm using PipedReader and PipedWriter for it, but those classes cause a performance problem: PipedReader does a wait(1000) when its internal buffer is empty, which causes my application to lag visibly. Would there be some library which does the same thing as PipedReader/PipedWriter, but with better performance? Or will I have to implement my own wheels?

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  • C# Reading a file and writing out replacing string

    - by Mike
    What I have is a C# windows app that reads a bunch of SQL tables and creates a bunch of queries based on the results. What I'm having a small issue with is the final "," on my query This is what I have ColumnX, from I need to read the entire file, write out exactly what is in the file and just replace the last , before the from with nothing. I tried .replace(@",\n\nfrom),(@"\n\nfrom) but it's not finding it. Any help is appreciated. Example: ColumnX, from Result: ColumnX from

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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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  • Automatic file transfer (daily)

    - by Simon
    Is it possible to automaticly download xml files from one server to another server on a daily basis with PHP? The goal is to create a webapplication in CakePHP which makes use of an xml report that comes from a online accountingserver. So it can be done using a cronjob? But is cron supported with PHP? Where can i configure that cronjob? What kind of code should i write to get the file from the accountingserver in the first place?

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  • Loading SQLite Database into Android App

    - by Chris
    I am able to create, write and read an SQLite Database in my Android App. I have a copy of the Database that is fully populated with data, and I want to get that data into the App's Database. Is it possible to access my pouplaed database from inside my App? Or can I at least create a copy of the populated database and then use that copy? Or do I need to do a .dump and put all the inserts into the Android code?

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  • Is existed web markup languages with possibility insert sql query?

    - by MercurieVV
    Actually what I want - simple DB with simple User Interface. Like MS Access, but for web and it can be without Dragn n Drop, but described with markup language. For example if I want to create list report, then i need to write something like: <table query="SELECT * from mytable"></table> It needed for simple data applications. In that kind application no programming logic required. Just working with DB. Changing DB data and showing it.

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  • transpose graph

    - by rana123
    how can i write program in java to find the transpose of the graph G, where the input and the output of the program are represented as adjacency list structure. for example: input: 12341 outout: 1432

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  • jQuery: Writing jquery in an object oriented way

    - by anoopkattodi
    Hi all, I am trying to write all my query code in an object oriented way. But I don't know how to implement this for each click function and hover function etc. I also wanted to know: What are the advantages of writing query in object oriented way? For query what is better the object oriented way or in the ordinary way?

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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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  • mysql: Can I use two "where"s? Like, "SELECT * FROM table WHERE something and something"?

    - by KeriLynn
    I have a table with my products and I'm trying to write a page that would pull bracelets with certain colors from the database. So here's what I have right now (in php): $query = "SELECT * FROM products WHERE (products.colors LIKE '%black%')"; But I only want to select rows where the value for the column "category" equals "bracelet". I've tried a few different things, but I keep getting warnings and errors. I appreciate any help you can give, thank you!

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  • C# Net CF - how to take a picture without interaction?

    - by Jakis
    Hello everyone, Is there a possibility to take a picture using phone's camera without user interaction? I'd like to write a short app that only takes sequence of pictures and the user should be able to set number of pictures, location, quality and time between shots. After starting the app should take pictures without further interaction. This program should for examlple take a sequence of 250 pictures of moving clouds so I could make a ten second movie from those pics. Greeting and sorry for my english ;)

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  • What is the difference between these two statements (asp.net/c#/entity framework)

    - by user318573
    IEnumerable<Department> myQuery = (from D in myContext.Departments orderby D.DeptName select D); var myQuery = (from D in myContext.Departments orderby D.DeptName select D); What is the difference between these two statements above? In my little asp.net/C#/ EF4.0 app I can write them either way, and as far as how I want to use them, they both work, but there has to be a reason why I would choose one over the other?

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  • Prolog returns Out = _G431 when it suppose to return a list of lists

    - by Mandah
    createSchedule([[math109]], fall, Out). [[cs485, cs485], [cs355, cs355, cs462, cs462, cs462], [cs345, cs345, cs352, cs352, cs352, cs362, cs362, cs362, cs396, cs396, cs396], [cs330, cs330, cs330], [cs255, cs255, cs255, cs268, cs268], [math114, cs245, cs245], [math112, cs145, cs146], [math109]] Out = _G431 this is what prolog returns and the list of lists is shown by using write(Out) in prolog. Any ideas why it is showing this? Thanks

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  • Confused about distinct/aggregate queries with (N)Hibernate

    - by nw
    I'm not sure how to approach queries that don't map 1:1 to my persistent entities - in other words, distinct and aggregate queries. For example, I need to retrieve a distinct list of property values for populating a drop-down list. Should I write a class and a mapping for the "entities" that are returned by this query? Or should I just use the native DB provider and work with native data sets instead?

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  • [Qt] Check octal number

    - by sterh
    Hello, I write simple application in C++/Qt. And i have a text and some octal number in it. My app splits this text by spaces. And i need to check octal numbers from text. How can i select octal numbers from this text with regular expressions? Thank you.

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  • Can I use a attribute to make .net impersonate another user?

    - by Rising Star
    I am familiar with impersonating an account in .net by using: dim myIdentity as WindowsIdentity = someIdentity using ctx as WindowsImpersonationContext = myIdentity.Impersonate() doStuff() end using Is it possible to define a .net attribute so that I could write something like: < runAsUser(someIdentity) public sub doStuff() and then have the .net framework always impersonate when running the method doStuff()?

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