Search Results

Search found 12267 results on 491 pages for 'cool stuff'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 37/491 | < Previous Page | 33 34 35 36 37 38 39 40 41 42 43 44  | Next Page >

  • Is developing iPhone apps in any language other than Objective-C ever a truly viable solution?

    - by David Foster
    I hear all this stuff about crazy ways to build iPhone apps using Ruby or C# under .NET or the like. Even stuff about developing apps on Windows using Java, or auto-generated apps using Flash CS5 or something. Now, I've never really spent any time at all investigating these claims—I just brushed them off as clumsy or cumbersome or down-right claptrap—but I'm a proud Objective-C programmer who's perhaps a little worried as to whether there's any truth in all of this?

    Read the article

  • Passing variables, creating instances, self, The mechanics and usage of classes: need explenation

    - by Baf
    I've been sitting over this the whole day and Im a little tired already so please excuse me being brief. Im new to python. I just rewrrote a working program, into a bunch of functions in a class and everzthings messed up. I dont know if its me but Im very surprised i couldn t find a beginners tutorial on how to handle classes on the web so I have a few questions. First of all, in the init section of the class i have declared a bunch of variables with self.variable=something. Is it correct that i should be able to access/modify these variables in every function of the class by using self.variable in that function? In other words by declaring self.variable i have made these variables, global variables in the scope of the class right? If not how do i handle self. ? Secondly how do i correctly pass arguments to the class? some example code would be cool. thirdly how do i call a function of the class outside of the class scope? some example code would be cool. fouthly how do I create an Instance of the class INITIALCLASS in another class OTHERCLASS, passing variables from OTHERCLASS to INITIALCLASS? some example code would be cool. I Want to call a function from OTHERCLASS with arguments from INITIALCLASS. What Ive done so far is. class OTHERCLASS(): def __init__(self,variable1,variable2,variable3): self.variable1=variable1 self.variable2=variable2 self.variable3=variable3 def someotherfunction(self): something=somecode(using self.variable3) self.variable2.append(something) print self.variable2 def somemorefunctions(self): self.variable2.append(variable1) class INITIALCLASS(): def __init__(self): self.variable1=value1 self.variable2=[] self.variable3='' self.DoIt=OTHERCLASS(variable1,variable2,variable3) def somefunction(self): variable3=Somecode #tried this self.DoIt.someotherfunctions() #and this DoIt.someotherfunctions() I clearly havent understood how to pass variables to classes or how to handle self, when to use it and when not, I probably also havent understood how to properly create an isntance of a class. In general i havent udnerstood the mechanics of classes So please help me and explain it to me like i have no Idea( which i dont it seems). Or point me to a thorough video, or readable tutorial. All i find on the web is super simple examples, that didnt help me much. Or just very short definitions of classes and class methods instances etc. I can send you my original code if you guys want, but its quite long. Thanks for the Help Much appreciated!

    Read the article

  • Is it ok to throw NotImplemented exception in virtual methods?

    - by Axarydax
    I have a base class for some plugin-style stuff, and there are some methods that are absolutely required to be implemented. I currently declare those in the base class as virtual, for example public virtual void Save { throw new NotImplementedException(); } and in the descendand I have a public override void Save() { //do stuff } Is it a good practice to throw a NotImplementedException there? The descendand classes could for example be the modules for handling different file formats. Thanks

    Read the article

  • openmp sections running sequentially

    - by chi42
    I have the following code: #pragma omp parallel sections private(x,y,cpsrcptr) firstprivate(srcptr) lastprivate(srcptr) { #pragma omp section { //stuff } #pragma omp section { //stuff } } According to the Zoom profiler, two threads are created, one thread executes both the sections, and the other thread simply blocks! Has anyone encountered anything like this before? (And yes, I do have a dual core machine).

    Read the article

  • initialize a const array in a class initializer in C++

    - by Nathan Fellman
    I have the following class in C++: class a { const int b[2]; // other stuff follows // and here's the constructor a(void); } The question is, how do I initialize b in the initialization list, given that I can't initialize it inside the body of the function of the constructor, because b is const? This doesn't work: a::a(void) : b([2,3]) { // other initialization stuff } Edit: The case in point is when I can have different values for b for different instances, but the values are known to be constant for the lifetime of the instance.

    Read the article

  • Send <p> tags and simple HTML formatting through a form via PHP.

    - by Jonathan
    Hi, so I need the user to write a review about an article or book and send it to a DB via PHP but with some basic HTML formatting.. I mean, I have a form , when the user writes the review, the data is sent but without any kind of formatting, If the user want to write in a new line, the text is sent like plain text, I need to get also those new line breaks and simple stuff. I know how to use PHP and DB connection, I just need to know how to get those new line breakes and stuff..

    Read the article

  • T-SQL get SELECTed value of stored procedure

    - by David
    In T-SQL, this is allowed: DECLARE @SelectedValue int SELECT @SelectedValue = MyIntField FROM MyTable WHERE MyPrimaryKeyField = 1 So, it's possible to get the value of a SELECT and stuff it in a variable (provided it's scalar, obviously). If I put the same select logic in a stored procedure: CREATE PROCEDURE GetMyInt AS SELECT MyIntField FROM MyTable WHERE MyPrimaryKeyField = 1 Can I get the output of this stored procedure and stuff it in a variable? Something like: DECLARE @SelectedValue int SELECT @SelectedValue = EXEC GetMyInt (I know the syntax above is not allowed because I tried it!)

    Read the article

  • PHP: csv generator creates extra field

    - by WhyKiki
    I'm coding a script that takes one csv file to transform it into another one. Basically, two foreach loops are used: one to iterate records and another to iterate fields. Certain fields (cno 25, 26, 44) for each record needs to be modified. The problem is that each modificatino creates an extra empty field, i.e. the code $colStr .= '"' . $col . '";'; works but not any of the code in the if statements. The code is: $rno = 0; foreach ($csvArray as $line) { $cno = 0; $colStr = ""; foreach ($line as $col) { if($rno>0 && $cno==25) { $stuff = array($csvArray[$rno][41], $csvArray[$rno][47], $csvArray[$rno][48], $csvArray[$rno][49]); foreach($stuff as &$value) { $value = preg_replace('/[^0-9]/', '', $value); } sort($stuff, SORT_NUMERIC); // Causes bug! $colStr .= '"' . $stuff[0] . '";'; } if($rno>0 && $cno==26) { $urls = ""; for($i = 55; $i<=62; $i++) { $urls .= "Images: " . $csvArray[$rno][$i] . " | "; } $urls .= "Some text: " . $csvArray[$rno][43] . " | "; // Causes bug! $colStr .= '"' . $urls . '";'; } if($rno>0 && $cno==44) { $colStr .= '"' . $_POST['location'][$rno] . '";'; } if($rno>0 && $cno==54) { $objType = $col; $objType = preg_replace('/foobar/i', '123', $objType); // Causes bug! $colStr .= '"' . $objType . '";'; } else { // This is ok, though $colStr .= '"' . $col . '";'; } $cno++; } $colStr = preg_replace('/;$/', '', $colStr); $colStr .= "\n"; fwrite($outputFile, $colStr); $rno++; } fclose($outputFile);

    Read the article

  • .NET 2.0 Framework in C# check if 64bit os if so do this? if not do this? better answer?

    - by NightsEVil
    hi i have this little snippet of code i wrote that checks to see if a folder is present (only exists in x64) if so it does "X" commands, if not (i.e x86) does "Z" commands (x,Z are just markers for code) but what i wanna know is there a better or more reliable way to do this using only the 2.0 .net Framework? string target = @"C:\Windows\SysWow64"; { if (Directory.Exists(target)) { //do x64 stuff } else { //do x86 stuff }

    Read the article

  • What program should I write to use up the 3,472 minutes on my iPhone 3GS?

    - by billmaya
    Something slightly off-topic but bear with me. I've got an iPhone 3GS that I use only for development and over the months I've accumulated 3,472 rollover minutes (my primary phone is an Android G-1). It seems a shame to let these minutes go to "waste." What cool iPhone app would you like to see that uses these minutes up in a productive, interesting, and possibly cool way. I'll code whichever suggestion has the highest vote, providing it's not illegal and doesn't violate Apple's SDK, and release it for free on the AppStore.

    Read the article

  • When inheriting a control in Silverlight, how to find out if its template has been applied?

    - by herzmeister der welten
    When inheriting a control in Silverlight, how do I find out if its template has already been applied? I.e., can I reliably get rid of my cumbersome _hasTemplateBeenApplied field? public class AwesomeControl : Control { private bool _hasTemplateBeenApplied = false; public override void OnApplyTemplate() { base.OnApplyTemplate(); this._hasTemplateBeenApplied = true; // Stuff } private bool DoStuff() { if (this._hasTemplateBeenApplied) { // Do Stuff } } }

    Read the article

  • When Something Occurs in a BackgroundWorker, Trigger Code on a Different Thread?

    - by Soo
    I have a background worker that runs and looks for stuff, and when it finds stuff, I want to update my main WinForm. The issue that I'm having is that when I try to update my WinForm from my background worker, I get errors that tell me I can't modify things that were made outside of my background worker (in other words, everything in my form). Can someone provide a simple code example of how I can get my code to work the way I want it to? Thanks!

    Read the article

  • What happens inside the try block?

    - by dontWatchMyProfile
    Example: @try { // 1) do bad stuff that can throw an exception... // 2) do some more stuff // 3) ...and more... } @catch (NSException *e) { NSLog(@"Error: %@: %@", [e name], [e reason]); } If 1) throws an exception, is the block immediately canceled like a return in a function or a break in a loop? Or will 2) and 3) be processed no matter what happens in 1)?

    Read the article

  • "Low level" project using Java

    - by Tammy Wilson
    I'm wondering if it would make sense to do some low level or OS stuff(a project) using Java. Reason why I ask is because I would like to expand my knowledge in Java and I'm into doing stuff like file compressor, bulk file renamer, etc. Are there any examples out there that I can look at or play with? Or should I just be using C or C++ instead? Thanks!

    Read the article

  • Local variable vs parameter

    - by Dhana
    function doIt(param) { var localVar = param; //do lots of stuff with localVar } function doIt(param) { //do lots of stuff with param } Is there any difference in terms of efficiency between the code above?

    Read the article

  • Is it alright to call len() in a loop's conditional statement?

    - by DormoTheNord
    In C, it is considered bad practice to call strlen like this: for ( i = 0; strlen ( str ) != foo; i++ ) { // stuff } The reason, of course, is that it is inefficient since it "counts" the characters in a string multiple times. However, in Python, I see code like this quite often: for i in range ( 0, len ( list ) ): # stuff Is this bad practice? Should I store the result of len() in a variable and use that?

    Read the article

  • Using type passed as a template in C++

    - by MeDiCS
    Is it possible to actually use the type passed as a template for control flow? I'd like to write a function that uses templates, which in turn calls another function based on the type passed: template <class T> void test_function (T var) { //Do stuff if (T == char) { bar (var); } else { foo (var); } //Do even more stuff } If not, I'll have to fallback to enums...

    Read the article

  • prevent default hover

    - by meo
    I try to prevent the Browser from using the :hover effect of the CSS. $("ul#mainFilter a").hover( function(o){ o.preventDefault(); ...do my stuff... }, function(o){ o.preventDefault(); ...do my stuff... }); I tired it with return false; to but it does not work. Does anyone know how to do this?

    Read the article

  • how a thread can signal when it's finished?

    - by Kyle
    #include <iostream> #include <boost/thread.hpp> using std::endl; using std::cout; using namespace boost; mutex running_mutex; struct dostuff { volatile bool running; dostuff() : running(true) {} void operator()(int x) { cout << "dostuff beginning " << x << endl; this_thread::sleep(posix_time::seconds(2)); cout << "dostuff is done doing stuff" << endl; mutex::scoped_lock running_lock(running_mutex); running = false; } }; bool is_running(dostuff& doer) { mutex::scoped_lock running_lock(running_mutex); return doer.running; } int main() { cout << "Begin.." << endl; dostuff doer; thread t(doer, 4); if (is_running(doer)) cout << "Cool, it's running.\n"; this_thread::sleep(posix_time::seconds(3)); if (!is_running(doer)) cout << "Cool, it's done now.\n"; else cout << "still running? why\n"; // This happens! :( return 0; } Why is the output of the above program: Begin.. Cool, it's running. dostuff beginning 4 dostuff is done doing stuff still running? why How can dostuff correctly flag when it is done? I do not want to sit around waiting for it, I just want to be notified when it's done.

    Read the article

  • How do I mysql select with aliases from another table?

    - by Rob
    I'm working with a CMS system where I cannot control database column names. And I've got two related tables: Table: content +------------+----------+----------+----------+----------+ | content_id | column_1 | column_2 | column_3 | column_4 | +------------+----------+----------+----------+----------+ | 1 | stuff | junk | text | info | | 2 | trash | blah | what | bio | +------------+----------+----------+----------+----------+ Table: column_names +------------+-------------+ | column_id | column_name | +------------+-------------+ | 1 | good_text | | 2 | bad_text | | 3 | blue_text | | 4 | red_text | +------------+-------------+ What I'd like to do here is select from the first table, but select the columns AS the column_name from the second table. So my result would look like: +------------+-----------+----------+-----------+----------+ | content_id | good_text | bad_text | blue_text | red_text | +------------+-----------+----------+-----------+----------+ | 1 | stuff | junk | text | info | | 2 | trash | blah | what | bio | +------------+-----------+----------+-----------+----------+

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 33 34 35 36 37 38 39 40 41 42 43 44  | Next Page >