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  • Is Java assert broken?

    - by BlairHippo
    While poking around the questions, I recently discovered the assert keyword in Java. At first, I was excited. Something useful I didn't already know! A more efficient way for me to check the validity of input parameters! Yay learning! But then I took a closer look, and my enthusiasm was not so much "tempered" as "snuffed-out completely" by one simple fact: you can turn assertions off.* This sounds like a nightmare. If I'm asserting that I don't want the code to keep going if the input listOfStuff is null, why on earth would I want that assertion ignored? It sounds like if I'm debugging a piece of production code and suspect that listOfStuff may have been erroneously passed a null but don't see any logfile evidence of that assertion being triggered, I can't trust that listOfStuff actually got sent a valid value; I also have to account for the possibility that assertions may have been turned off entirely. And this assumes that I'm the one debugging the code. Somebody unfamiliar with assertions might see that and assume (quite reasonably) that if the assertion message doesn't appear in the log, listOfStuff couldn't be the problem. If your first encounter with assert was in the wild, would it even occur to you that it could be turned-off entirely? It's not like there's a command-line option that lets you disable try/catch blocks, after all. All of which brings me to my question (and this is a question, not an excuse for a rant! I promise!): What am I missing? Is there some nuance that renders Java's implementation of assert far more useful than I'm giving it credit for? Is the ability to enable/disable it from the command line actually incredibly valuable in some contexts? Am I misconceptualizing it somehow when I envision using it in production code in lieu of statements like if (listOfStuff == null) barf();? I just feel like there's something important here that I'm not getting. *Okay, technically speaking, they're actually off by default; you have to go out of your way to turn them on. But still, you can knock them out entirely.

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  • Execute a Application On The Server Using PHP

    - by Nathan Campos
    I have an application on my server that is called leaf.exe, that haves two arguments needed to run, they are: inputfile and outputfile, that will be like this example: pnote.exe input.pnt output.txt The executable is at exec/, inputfile is at upload/ and outputfile is on compiled/. But I need that a PHP could run the application like that, then I want to know: How could I do this? How could I echo the output of the program?

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  • Adding Google Map to Contact Info Page in Drupal

    - by clang1234
    I'm trying to display a Google Map inside a drupal page. The map will only have the business location marker on it, with no need for a user to submitted their own markers. So far I've loaded the Gmap, Location, and CCK modules. I've attempted to enable a location field for Page content types, which allows me to input an address, but this doesn't display the actual map. I'm sure I'm missing something simple here. Any help?

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  • Validate numeric text field in jquery

    - by mcxiand
    I have this code in jquery to prevent non-numeric characters being inputted to the text field $("#NumericField").numeric(); Now, on the text field i cant input non-numeric characters. That is OK. The problem here is if the user will paste on the text field with non numeric characters. Is there a way/method to disable pasting if the value is non-numeric? Or is there any other approach to handle this situation that you can share?

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  • Pop-up window in Java Swing

    - by Gabriel Parenza
    Hey, Can someone suggest me how to implement a pop-up window in Java Swing. I want the pop-up window to be a modal window (user cannot return to the main window when the pop-up is open). I tried doing it using JDialog but it allows only one widget for user input to be in it whereas I need multiple widgets. I may be wrong here but this is what I was able to do. Appreciate your help.

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  • Setuptools not passing arguments for entry_points

    - by Austin
    I'm using setuptools for a Python script I wrote After installing, I do: $ megazord -i input -d database -v xx-xx -w yy-yy Like I would if I was running it ./like_this However, I get: Traceback (most recent call last): File "/usr/local/bin/megazord", line 9, in <module> load_entry_point('megazord==1.0.0', 'console_scripts', 'megazord')() TypeError: main() takes exactly 1 argument (0 given) Which looks like setuptools is not sending my arguments to main() to be parsed (by optparse) Here's my setuptools config for entry_points: entry_points = { 'console_scripts': [ 'megazord = megazord.megazord:main', 'megazord-benchmark = megazord.benchmark:main', 'megazord-hash = megazord.mzhash:main', 'megazord-mutate = megazord.mutator:main', ] } Any ideas?

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  • How to format a string to camel case in XSLT?

    - by DBA_Alex
    I'm trying to format strings in XSLT that needs to be in camel case to be used appropriately for the application I'm working with. For example: this_text would become ThisText this_long_text would become ThisLongText Is it possible to also set this up where I can send an input to the format so I do not have to recreate the format multiple times?

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  • Android (Milestone/Droid): View.OnKeyListener not working correctly?

    - by Ice09
    I am using a simple EditText and register an View.OnKeyListener. Some GUI changes should happen (fading in/out of views) when certain conditions for the EditView text apply. In the emulator, this works as expected. On the Motorola Droid/Milestone, the listener does not work, only after pressing DEL, the listener is called the first time and always afterwards when activating the number input, the listener works correctly Note: I deactivated the suggestions with TYPE_TEXT_FLAG_NO_SUGGESTIONS and used the IME action IME_ACTION_GO to have a workaround for this (otherwise the user could not "start" a request).

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  • how to make Sliding window model for data stream mining?

    - by zeedotcom
    we have a situation that a stream (data from sensor or click stream data at server) is coming with sliding window algorithm we have to store the last (say) 500 samples of data in memory. These samples are then used to create histograms, aggregations & capture information about anomalies in the input data stream. please tell me how to make such sliding window.

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  • Quality gets worse

    - by Hopery
    I have bunch of flash videos and am adding my brand to all of them. The problem is quality gets worse. I am doing with this command: ffmpeg -i /input.flv -vhook "/usr/loca/vhook/drawtext.so -f /usr/share/fonts/somefont.ttf -x 5 -y 5 t MyBrand" -f flv -s 320x240 - | flvtools2 -U stdin /output.flv Please tell me what I am doing wrong. I need the same quality.

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  • http_post_data adding extra characters in response

    - by Siyam
    Hey Guys I am getting some extra characters like '5ae' and '45c' interspersed along with valid data when using http_post_data. The data I am sending is XML and so is the response. The response contains these weird characters thats making the XML invalid. If I use fsockopen I do not have this issue. Would really like some input on this.

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  • Listings in Latex with UTF-8 (or at least german umlauts)

    - by Janosch
    Trying to include a source-file into my latex document using the listings package, i got problems with german umlauts inside of the comments in the code. Using \lstset{ extendedchars=\true, inputencoding=utf8x } Umlauts in the source files (encoded in UTF-8 without BOM) are processed, but they are somehow moved to the beginning of the word they are contained in. So // die Größe muss berücksichtigt werden in the input source file, becomes // die ößGre muss übercksichtigt werden in the output file. NOTE: since i found errors in my initial setup, i heavily edited this question

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  • hi how restrict the year in jquery datepicker?

    - by udaya
    Hi I am using jquery.datePicker.js js file to create a date picker This is whati have in my view page <input type="text" style="font-family: verdana; width: 80px;" id="txtArrivalDate" class="startDate" name="txtArrivalDate" value="<?php echo $_POST['txtArrivalDate'] ?>" /> when i click on the arrival date text box the year column starts on current year say 2010 but the years less than 2010 also available on the year select box how to get rid of the years below current year

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  • jQuery delete text onfocus

    - by phillip usa
    hey, ive been trying to have a default value in a text input, then with jQuery, when you "onfocus" the textbox, it makes the text black (default a light gray), and deletes the default value. I think you know what im talking about, so do you guys know how to accomplish this?

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  • how much time does grid.py take to run ?

    - by trinity
    Hello all , I am using libsvm for binary classification.. I wanted to try grid.py , as it is said to improve results.. I ran this script for five files in separate terminals , and the script has been running for more than 12 hours.. this is the state of my 5 terminals now : [root@localhost tools]# python grid.py sarts_nonarts_feat.txt>grid_arts.txt Warning: empty z range [61.3997:61.3997], adjusting to [60.7857:62.0137] line 2: warning: Cannot contour non grid data. Please use "set dgrid3d". Warning: empty z range [61.3997:61.3997], adjusting to [60.7857:62.0137] line 4: warning: Cannot contour non grid data. Please use "set dgrid3d". [root@localhost tools]# python grid.py sgames_nongames_feat.txt>grid_games.txt Warning: empty z range [64.5867:64.5867], adjusting to [63.9408:65.2326] line 2: warning: Cannot contour non grid data. Please use "set dgrid3d". Warning: empty z range [64.5867:64.5867], adjusting to [63.9408:65.2326] line 4: warning: Cannot contour non grid data. Please use "set dgrid3d". [root@localhost tools]# python grid.py sref_nonref_feat.txt>grid_ref.txt Warning: empty z range [62.4602:62.4602], adjusting to [61.8356:63.0848] line 2: warning: Cannot contour non grid data. Please use "set dgrid3d". Warning: empty z range [62.4602:62.4602], adjusting to [61.8356:63.0848] line 4: warning: Cannot contour non grid data. Please use "set dgrid3d". [root@localhost tools]# python grid.py sbiz_nonbiz_feat.txt>grid_biz.txt Warning: empty z range [67.9762:67.9762], adjusting to [67.2964:68.656] line 2: warning: Cannot contour non grid data. Please use "set dgrid3d". Warning: empty z range [67.9762:67.9762], adjusting to [67.2964:68.656] line 4: warning: Cannot contour non grid data. Please use "set dgrid3d". [root@localhost tools]# python grid.py snews_nonnews_feat.txt>grid_news.txt Wrong input format at line 494 Traceback (most recent call last): File "grid.py", line 223, in run if rate is None: raise "get no rate" TypeError: exceptions must be classes or instances, not str I had redirected the outputs to files , but those files for now contain nothing.. And , the following files were created : sbiz_nonbiz_feat.txt.out sbiz_nonbiz_feat.txt.png sarts_nonarts_feat.txt.out sarts_nonarts_feat.txt.png sgames_nongames_feat.txt.out sgames_nongames_feat.txt.png sref_nonref_feat.txt.out sref_nonref_feat.txt.png snews_nonnews_feat.txt.out (-- is empty ) There's just one line of information in .out files.. the ".png" files are some GNU PLOTS . But i dont understand what the above GNUplots / warnings convey .. Should i re-run them ? Can anyone please tell me on how much time this script might take if each input file contains about 144000 lines.. Thanks and regards

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  • AD - DirectoryServices: VBNET2.0 - Speaking architecture...

    - by Will Marcouiller
    I've been mandated to write an application to migrate the Active Directory access models to another environment. Here's the context: I'm stuck with VB.NET 2005 and .NET Framework 2.0; The application must use the Windows authenticated user to manage AD; The objects I have to handle are Groups, Users and OrganizationalUnits; I intend to use the Façade design pattern to provider ease of use and a fully reusable code; I plan to write a factory for each of the objects managed (group, ou, user); The use of Attributes should be useful here, I guess; As everything is about the DirectoryEntry class when accessing the AD, it seems a good candidate for generic types. Obligatory features: User creates new OUs manually; User creates new group manually; User creates new user (these users are services accounts) manually; Application reads an XML file which contains the OUs, groups and users to create; Application informs the user about the OUs, groups and users that shall be created; User specifies the domain environment where to migrate the XML input file designated objects; User makes changes if needed, and launches the task operations; Application performs required by the XML input file operations against the underlying AD as specified by the user; Application informs the user upon completion. Linear features: User fetches OUs, groups, users; User changes OUs, groups, users; User deletes OUs, groups, users; The application logs AD entries and operations performed, plus errors and exceptions; Nice-to-have features: Application rollbacks operations on error or exception. I've been working for weeks now to get acquainted with the AD and the System.DirectoryServices assembly. But I don't seem to find a way to be fully satisfied with what I'm doing and always looking for better. I have studied Bret de Smet's Linq to AD on CodePlex, but then again, I can't use it as I'm stuck with .NET 2.0, so no Linq! But I've learned about Attributes, and seen that he's working with generic types as he codes a DirectorySource class to perform the operations for OUs, groups and users. Any suggestions? Thanks for any help, code sample, ideas, architural solution, everything!

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  • How would one make an Xcode style console window?

    - by iaefai
    I am making a Haskell editor with Cocoa, and it would be useful to support some in-application text output. Even better would be supporting some text input. Xcode does all this in its console, which looks like it might be an NSTextView, but not sure if somebody might have done all this before.

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  • Arduino (processing) Library in Netbeans and control

    - by Casper Marcussen
    Hello everyone I am trying to control 4 LEDs and getting analog input from 4 contacts. The program is written in java, so to gain acces to the functions of arduino, such as AnalogRead() and setting an LED to high or low, would importing the processing library let the program use those functions? I was also wondering, if the program, will be transferred to the arduino it self, or the java program will just pull the data from the pins?

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  • Generating a readable colour from RGB?

    - by Joe Simpson
    Hi, I'm putting in a function which will allow a user to input a color (eg: purple) and it will change the look of their profile to be purple. It's interpreted from text into a 'Color' class which stores them inside itself as RGB numbers (int for red, one for green and other for blue). What i don't know how to do is logically turn these three numbers into another 3 which will make a readable colour. Can anyone help me on how to do this? Joe

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  • Predicate<T> through jQuery with ASP.NET MVC

    - by Stacey
    One of my co-workers wrote an ActionResult that accepts a Predicate as its input parameter. We need to call this method through jQuery - but obviously that doesn't work. Is there any way to pass a query through a method in jQuery that it will accept? public ActionResult List(Predicate<TModel> expression) { // ... } $('#item').load('/list', //... ??? )

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  • Custom Key Bindings in SWT

    - by Dimitar
    Hey all, Is it at all possible to add custom key bindings to buttons in SWT? I can't use & in the text of the button to set a mnenomic because my buttons have no text (only an image). Is there a good way to do this using key listeners or is there something like the input/action map in swing? Thanks in advance.

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  • Regular Expression TCL using procedure

    - by user329763
    Hey everybody, I am a novice TCL programmer.Here I go My 1st post with stackoverflow forum. I would like to write a regular expression that matches any & only the strings starts with character A and ends with B. Whatever the characters coming inbetween should be displayed. For instance AXIOMB as an input from the user which starts with A & end with character B. Here is my try regexp { (^A([C-Z]+)B$)} Thank you

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  • jquery ui datepicker

    - by DavidOSomething
    what does navigationAsDateFormat do? also, I have changeMonth and changeYear enabled, how can I make it so that when you change the month and year using those dropdowns, the input field is automatically updated (e.g., updates without having to click on a new day)

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  • Create a Setup File Windows.Net C#

    - by Sandhurst
    I have created a windows application setup program, it needs to have a text file in the application folder. The file is also included while creating the setup. Once the setup successfully completes and my program tries to modify the file based on user input, its simple throwing an exception. I am using Windows 7 Home Premium OS. Any suggestion/help will be great to overcome this issue.

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