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  • how to place a button within a table in Java ?

    - by trinity
    Hi all , In the properties windows , we come across buttons in a table cell < as in font property's row , a button can be clicked on to set font properties . Is there a way to insert a button in a Jtable 's second column < which i've created using netbeans .. how to do that , if it is possible ?

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  • Trying to draw an image to a form, but not refreshing

    - by flavour404
    Hi, We are using graphics context of a form to draw an image. However it works fine on initial paint but the image is not being updated unless we set a breakpoint and run it in debug mode, stepping through each time. What is a good way of making a seperate thread to paint on to a form every second? Thanks.

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  • Sort Order With End Year and Start Year

    - by Maletor
    I'm looking to write a comparator to sort my items in a list. For items without an end year they should be at the top. For items with an end year they should be next. For items with the same end year the one with the lowest start year should be next. Something I have so far [item.get('end_year'), item.get('start_year')] Test sceanrios first is end year second is start year ("" is present) "", "" "", 2012 "", 2011 2012, 2005 2012, 2008 2011, 2011 2010, 2005

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  • best SEO method for date in url structure? [closed]

    - by Haroldo
    I'm working on an events website so dates are very important search terms, ie: 'whats on on fri 14th september' I've seen it done in various methods for example: domain/whats-on/city-hall/14-09-2010/event-name.html domain/whats-on/city-hall/2010/09/14/event-name.html the first is 'shallower'. the second could be clearer for google to synonym-ize as a date, has anyone else got any experience or input?

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  • Do you use logical negation operator (!) in "if" statement or check on "== false"

    - by Taras Terebkov
    Hello everyone, I just want to conduct a little survey about code style developers prefer. For me there are two ways to write "if" in such languages as Java, C#, C++, etc. (1) Logical negation operator public void foo() { if (!SessionManager.getInstance().hasActiveSession()) { . . . . . } } (2) Check on "false" public void foo() { if (SessionManager.getInstance().hasActiveSession() == false) { . . . . . } } I always believe that first way is much worst then the second one. Cause usually you don't "read" the code, but "recognize" it in one brief look. And exclamation symbol slipped from your mind, just disturbing you somewhere on the bottom of your unconscious. And only during reading the "if" block below you understand, that the logic is opposite - no sessions in "if" On the other hand in the second way of writing, an eye immediately catches words "SessionManager", "hasActiveSession" and "false". Also for me, the situation with "true" is different. In code like class SessionManager { private bool hasSession; public void foo() { if (hasSession == true) { . . . . . } else { . . . . . } } } I find "true" superfluous. why we repeating the sentence two times? The following is shorter and quicker to catch. class SessionManager { private bool hasSession; public void foo() { if (hasSession) { . . . . . } else { . . . . . } } } What do YOU think, guys?

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  • Parameters through postback

    - by Brian Roisentul
    I'm working with Ruby on rails 2.3.4 and I'd like to pass some parameters from one page to another ones the first one is submitted. For example: On the first page, I have a form that when it's filled a Preview button can be clicked to check all the info entered before submitting the form. That button redirects to another page with the info entered before, but I don't know how to get it in the second page.

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  • Can I use an abstract class instead of a private __construct() when creating a singleton in PHP?

    - by Pheter
    When creating a Singleton in PHP, I ensure that it cannot be instantiated by doing the following: class Singleton { private function __construct() {} private function __clone() {} public static function getInstance() {} } However, I realised that defining a class as 'abstract' means that it cannot be instantiated. So is there anything wrong with doing the following instead: abstract class Singleton { public static function getInstance() {} } The second scenario allows me to write fewer lines of code which would be nice. (Not that it actually makes much of a difference.)

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  • Controlling youtube traffic path ingoing to multihoming network

    - by Hamdy Ali
    Scenario: I've network multihoming (dual ISP) setup. each ISP bandwidth 500Mbps Currently ISP-A link bandwidth almost fully utilized then the second ISP-B link From our investigation, it is because youtube server cache response to link ISP-A. Some time the utilization of link ISP B increased because at that time youtube server cached is response to ISP B. My question how/Why did this happen? how do I force youtube cache server using ISP link B?

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  • In a Visual Studio C++ project with /clr, are its dependencies also compiled to managed code?

    - by Michael
    To be a bit more clear. If I have a Visual Studio C++ solution that has two projects, say a static library with CLR support turned off, and a second project with CLR support turned on that depends on this static library, does the static library get compiled as managed code? What about libraries that the CLR project uses that are external to this solution, do they also get compiled as managed code?

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  • PHP strpos preg_match

    - by usurper
    Hi, I want to copy a substring of a string using PHP. The regex for the first pattern is /\d\|\d\w0:/ The regex for the second pattern is: /\d\w\w\d+:\s-\s:/ Is it possible combining preg_match with strpos to get the exact positions from start to end and then copy it with substr( $string, $firstPos,$secPos ) ?

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  • Where are Silverlight assemblies stored when a xap file is run?

    - by ForeverDebugging
    We currently have a XAP file which contains Foo.dll, and another XAP file (with a completely different name) which contains an updated version Foo.dll (but the same version number). When we run the second XAP file, it looks as though the Silverlight runtime on the client, is picking up the old version of Foo.dll from the first XAP file. Anyone know where the Silverlight runtime unzips the xap file before running its content? Or if the runtime executes on a single app domain which could explain these errors?

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  • [Visual C++]Forcing memory alignment of variables/data-structures

    - by John
    I'm looking at using SSE and I gather aligning data on 16byte boundaries is recommended. There are two cases to consider: float data[4]; struct myystruct { float x,y,z,w; }; I'm not sure the first case can be done explicitly, though there's perhaps a compiler option I could use? In the second case I remember being able to control packing in old versions of GCC several years back, is this still possible?

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  • multiple lines in a cell of a table

    - by Tim
    I has a table as shown in this figure: The latex code for the table is: \begin{table} \begin{tabular}{ | c | c | } \hline \includegraphics[scale=0.45]{../0_1.eps} & 1.10 2.20 3.30 4.40 \\ \hline \end{tabular} \end{table} I would like to make the four numbers appear in different line inside the second cell, in order to reduce its width. I wonder how to do it? Thanks and regards!

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  • .Net OpenXml - Write Word 2007 document

    - by Melursus
    My problem is in two parts. 1. First part How can I, in Word 2007, put an id on a section so I can easy access this section from my code ? Let say I got Name : Here I want to set the name from my c# code 2. Second part How can I, from my c# code, fill this section id ?

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  • How to reference a particular JSON in a function call.

    - by Jane Wilkie
    Hi guys! I have two javascript routines.. the first one declares some JSON and it contains a function that takes two arguments, the first argument being the json object that needs traversing and the second argument is the tab that the rendering is done in. The second routine merely passes the name of the JSON that needs traversing and tab to render in. The code is below.... <script language="JavaScript1.2" type="text/javascript"> var arr = [ {"id":"10", "class":"child-of-9", "useless":"donotneed"}, {"id":"11", "class":"child-of-10", "useless":"donotneed"}]; var arrtwo = [ {"id":"12", "class":"child-of-12", "useless":"donotneed"}, {"id":"13", "class":"child-of-13", "useless":"donotneed"}]; function render_help(json,tab){ var html=''; for(var i=0;i<json.length;i++){ var obj = json[i]; for(var key in obj){ var attrName = key; var attrValue = obj[key]; if (attrName == "id"){ html = html +'<B>'+attrValue+'</B>'+'<BR><BR>'; }else if (attrName == "class"){ html = html + attrValue + '<BR><BR>'; } } } document.getElementById(tab).innerHTML=(html); } </script> <script language="JavaScript1.2" type="text/javascript"> render_help(arr,"helptab"); </script> Various testing and strategically placed alert boxes indicate that the tab parameter is being passed and interpreted correctly. I know this because when I change .... document.getElementById(tab).innerHTML=(html); to document.getElementById(tab).innerHTML=("Howdy"); and it renders "Howdy" just fine. Putting an alert box (alert(json)) in to check the value of json yields.... [object.Object],[object.Object] The JSON object remains elusive. For the purposes of this scripting I need the JSON "arr" to be iterated over. I feel like the answer is fairly obvious so far no luck. Admittedly I am new with Javascript and I am apparently missing something. Does anyone have a clue as to what I'm overlooking here? Happy New Year to you all! Janie

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  • Algorithm performance

    - by william007
    I am testing an algorithm for different parameters on a computer. I notice the performance fluctuates for each parameters. Say I run for the first time I got 20 ms, second times I got 5ms, third times I got 4ms: But the algorithm should work the same for these 3 times. I am using stopwatch from C# library to count the time, is there a better way to measure the performance without subjecting to those fluctuations?

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  • Objective C: Include class and call method

    - by Nic Hubbard
    I have built a class which has a few methods in it, once of which returns an array, lets call this class A. I have a second class, class B, which I would like to use to call the method from class A. But, now how do I call that method from class A and store what is returned in a var in class B? Do I have to initiate the class? I have made sure to include the .h file from class A into class B. Thanks for helping a newbie.

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  • How to check number?

    - by Knowing me knowing you
    Could anyone please tell me how to check what number I've got from a * b? Which is I would like to know every part of this number so for example if the result from this expression would be 25 I would like to know that first digit is two and second digit is five.

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  • "Change" panel on jframe

    - by bog
    I have 2 panels, the first one is the menu, and the second is the application main panel. Firstly the menu panel shows up, than i need to switch to the other panel if a specific button is pressed on the menu (the menu is hidden but the app returns to it after running is completed). && i need to resize the frame too if it's possible. can i do this somehow?

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  • avoid NullPointerException at the first cycle

    - by user1508419
    I have this piece of code: EventSnapshot snapshotEvent = new EventSnapshot(); EventSnapshot currentEvent = new EventSnapshot(); do { ... currentEvent.setContent(in_stats); ... if(!snapshotEvent.equals(currentEvent)) snapshotEvent.setContent(in_stats); } while(true); At the first cycle I get a NullPointerException because obviously the object snapshotEvent is empty. At the second cycle this doesn't happen.how can avoid this problem?

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  • Problems with MySQL OR clause

    - by Simon
    I have a problem with AND and OR clause in SQL. Here is my query: SELECT `act1`.`name`, `act1`.`surname`, `act2`.`name`, `act2`.`surname`, `act3`.`name`, `act3`.`surname` FROM `videos`, `actors` AS act1, `actors` AS act2, `actors` AS act3 WHERE `videos`.`ident` = 'somethink' AND ( `act1`.`id` = `videos`.`id_actor1` OR `act2`.`id` = `videos`.`id_actor2` OR `act3`.`id` = `videos`.`id_actor3` ) It returns me all variations of {name, surname}, but I want the name and surname of first exactly, second and thirth, if they exist.

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  • Is there a C# equivalent of typeof for properties/methods/members?

    - by David
    A classes Type metadata can be obtained in several ways. Two of them are: var typeInfo = Type.GetType("MyClass") and var typeInfo = typeof(MyClass) The advantage of the second way is that typos will be caught by the compiler, and the IDE can understand what I'm talking about (allowing features like refactoring to work without silently breaking the code) Does there exist an equivalent way of strongly referencing members/properties/methods for metadata and reflection? Can I replace: var propertyInfo = typeof(MyClass).GetProperty("MyProperty") with something like: var propertyInfo = property(MyClass.MyProperty)

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