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Search found 1213 results on 49 pages for 'jack jacobsen'.

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  • Problem calling Java from PHP script

    - by Jack
    I am working on windows. I am running PHP (5.1.3) scripts on Tomcat using PHP/Java bridge. Here is my simple code //test.php <?php require_once("java\Java.inc"); $systemInfo = new Java("Test"); print $systemInfo->foo(); ?> Test.class is in the same folder as test.php. But the php file is not able to locate the test class and I get the following error - Fatal error: Uncaught [[o:Exception]:"java.lang.Exception: CreateInstance failed: new Test. If I use a standard class like below. It works - <?php require_once("java\Java.inc"); $systemInfo = new Java("java.lang.System"); print "Total seconds since January 1, 1970: ".$systemInfo->currentTimeMillis(); ?> What should I do? 1)Should I copy my class to the standard location where all Java classes are kept. (What is this location?) 2) Do some changes in the php.ini file

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  • build a bst as an array using recursion?

    - by Jack B
    String[] dictionary = new String[dictSize]; //arrray of strings from dictionary String[] tree = new String[3*dictSize]; //array of tree void makeBST() { recMakeBST(0, dictionary.length-1); }//makeBST() int a=0; void recMakeBST(int low, int high) { if(high-low==0){ return; } else{ int mid=(high-low)/2; tree[a]=dictionary[mid]; a=a+1; recMakeBST(low, mid-1); a=a+1; recMakeBST(mid+1, high); } }

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  • Django anonymous user in model

    - by jack
    I have a model defined as below: class Example(models.Model): user = models.ForeignKey(User, null=True) other = models.CharField(max_length=100) The problem is Django refuses to assign django.contrib.auth.models.AnonymousUser directly to Example.user as null field so everytime I have to check if request.user.is_authenticated() ans assign Example.user = None manually. Is there a default value for AnonymousUser to use in a model field?

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  • Web scraping with Python

    - by Jack
    I'm currently trying to scrape a website that has fairly poorly-formatted HTML (often missing closing tags, no use of classes or ids so it's incredibly difficult to go straight to the element you want, etc.). I've been using BeautifulSoup with some success so far but every once and a while (though quite rarely), I run into a page where BeautifulSoup creates the HTML tree a bit differently from (for example) Firefox or Webkit. While this is understandable as the formatting of the HTML leaves this ambiguous, if I were able to get the same parse tree as Firefox or Webkit produces I would be able to parse things much more easily. The problems are usually something like the site opens a <b> tag twice and when BeautifulSoup sees the second <b> tag, it immediately closes the first while Firefox and Webkit nest the <b> tags. Is there a web scraping library for Python (or even any other language (I'm getting desperate)) that can reproduce the parse tree generated by Firefox or WebKit (or at least get closer than BeautifulSoup in cases of ambiguity).

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  • Web scraping with Python

    - by Jack
    I'm currently trying to scrape a website that has fairly poorly-formatted HTML (often missing closing tags, no use of classes or ids so it's incredibly difficult to go straight to the element you want, etc.). I've been using BeautifulSoup with some success so far but every once and a while (though quite rarely), I run into a page where BeautifulSoup creates the HTML tree a bit differently from (for example) Firefox or Webkit. While this is understandable as the formatting of the HTML leaves this ambiguous, if I were able to get the same parse tree as Firefox or Webkit produces I would be able to parse things much more easily. The problems are usually something like the site opens a <b> tag twice and when BeautifulSoup sees the second <b> tag, it immediately closes the first while Firefox and Webkit nest the <b> tags. Is there a web scraping library for Python (or even any other language (I'm getting desperate)) that can reproduce the parse tree generated by Firefox or WebKit (or at least get closer than BeautifulSoup in cases of ambiguity).

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  • Typo blogging platform with Heroku hosting: theming

    - by Jack
    Does anyone know how to workarounds Heroku's limitations on writing to the theme files for the Typo blogging platform? I'd like to take advantage of the theming capabilities right from the browser. If any theme's stylesheet is changed I get the error message "Unable to write file" in addition to the fact that any theme being changed to one that is not the default causes the page to lose all styling and is displayed in plain text. I followed this (awesome) blog entry to get it up and working.

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  • ASP.net Modal Pop up extender and DropDownlist autopostback

    - by Jack
    Hi all. I have a gridview control where if the user click on the auto generated edit button. A window will pop up using modalpopup extender with a drop down list for user to select. The problem is the selectedindexchange event will not fire if autopostback is set to false but if i set the autopostback to true. the pop up will go away without going to the selectedindexchange event. is it possible to have a control with autopostback set to true inside the modal pop up?

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  • Flash "Play" button doesn't play video unless you hit rewind or fast forward

    - by Jack Marchetti
    So I had an IE issue with flash videos continuing to play even when their DIV's display property was set to none ( $('flashdiv').hide(); ) So I was able to solve this problem, by using .detach() and then reinserting the div. This worked great, however the problem now is that the "play" button doesn't work. However, if I hit rewind, or fast forward, it plays, and the play/stop button work fine. The way I'm reinserting the divs is like this: var divid = $('#flashdiv').clone('true'); and then to reinsert: $('#test').html(divid); Any idea why the play button would not work?

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  • [Android] For-Loop Performance Oddity

    - by Jack Holt
    I just noticed something concerning for-loop performance that seems to fly in the face of the recommendations given by the Google Android team. Look at the following code: package com.jackcholt; import android.app.Activity; import android.os.Bundle; import android.util.Log; public class Main extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); loopTest(); finish(); } private void loopTest() { final long loopCount = 1228800; final int[] image = new int[8 * 320 * 480]; long start = System.currentTimeMillis(); for (int i = 0; i < (8 * 320 * 480); i++) { image[i] = i; } for (int i = 0; i < (8 * 320 * 480); i++) { image[i] = i; } Log.i("loopTest", "Elapsed time (recompute loop limit): " + (System.currentTimeMillis() - start)); start = System.currentTimeMillis(); for (int i = 0; i < 1228800; i++) { image[i] = i; } for (int i = 0; i < 1228800; i++) { image[i] = i; } Log.i("loopTest", "Elapsed time (literal loop limit): " + (System.currentTimeMillis() - start)); start = System.currentTimeMillis(); for (int i = 0; i < loopCount; i++) { image[i] = i; } for (int i = 0; i < loopCount; i++) { image[i] = i; } Log.i("loopTest", "Elapsed time (precompute loop limit): " + (System.currentTimeMillis() - start)); } } When I run this code I get the following output in logcat: I/loopTest( 726): Elapsed time (recompute loop limit): 759 I/loopTest( 726): Elapsed time (literal loop limit): 755 I/loopTest( 726): Elapsed time (precompute loop limit): 1317 As you can see the code that seems to recompute the loop limit value on every iteration of the loop compares very well to the code that uses a literal value for the loop limit. However, the code that uses a variable which contains the precomputed value for the loop limit is significantly slower than either of the others. I'm not surprised that accessing a variable should be slower that using a literal but why does code that looks like it should be using two multiply instructions on every iteration of the loop so comparable in performance to a literal? Could it be that because literals are the only thing being multiplied, the Java compiler is optimizing out the multiplication and using a precomputed literal?

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  • Rails Multiple Checkboxes with Javascript Dynamic Select

    - by Jack
    Hi, I have followed the Railscast episode 88 to implement a set of dependant drop down menus. In the students-new view, when the student's year is selected, the javascript figures out which courses are available to that year and offers the selection in a new drop down menu. My javascript erb file is here: var courses = new Array(); <% for course in @courses -%> <%for year in course.years -%> courses.push(new Array(<%= year.year_id%>, '<%=h course.title%>', <%= course.id%>)); <%end -%> <% end -%> function yearSelected() { year_id = $('student_year_id').getValue(); options = $('student_course_ids').options; options.length = 1; courses.each(function(course) { if (course[0] == year_id) { options[options.length] = new Option(course[1], course[2]); } }); if (options.length == 1) { $('course_field').hide(); } else { $('course_field').show(); } } document.observe('dom:loaded', function() { yearSelected(); $('student_year_id').observe('change', yearSelected); }); Any my view is as follows: <% form_for(@student) do |f| %> <%= f.error_messages %> <p> <%= f.label :name %><br /> <%= f.text_field :name %> </p> <p> <%= f.label :cid, "CID" %><br /> <%= f.text_field :cid %> </p> <p> <label for="student_year_id">Year:</label> <%= collection_select(:student, :year_id, Year.all, :id, :title, {:prompt => true})%> </p> <p id="course_field"> <label for="student_course_ids">Course:</label> <%= collection_select(:student, :course_ids, Course.find(:all), :id, :title, {:prompt => true}, {:multiple => true})%> </p> <p> <%= f.submit 'Save' %> </p> <% end %> What I would like to do is to add checkboxes instead of the drop down menu. Any suggestions? I previously was using this method, but was not able to get it to work with the new javascript. Cheers

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  • How do you reference a custom object outside of the function it was created in with JavaScript?

    - by Jack Roscoe
    Hi, I'm currently using JavaScript and jQuery. I have an function which executes once the document is ready, and inside that I am creating objects which contain various attributes. Within the same function, I can access these new object's attributes no problem, however once I'm inside a different function I can't seem to reference them properly and therefore cannot access the objects or the information inside them. What's the correct way to reference the attributes of an object which was created in a different function to the one looking for the information?

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  • What is on your desk?

    - by Jack
    I have read that what you keep on your desk is very influential in how you work and your level of productivity. I am trying to optimise the way that I work (I am a terrible procrastinator), and am curious what other programmers' desks look like. What do you have on your desk? Is there anything you deliberately avoid? There is no need to mention if you have things like computer, screen, mouse, keyboard, or speakers.

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  • Sample twitter application.

    - by Jack
    <?php function updateTwitter($status) { // Twitter login information $username = 'xxxxx'; $password = 'xxxxxx'; // The url of the update function $url = 'http://twitter.com/statuses/update.xml'; // Arguments we are posting to Twitter $postargs = 'status='.urlencode($status); // Will store the response we get from Twitter $responseInfo=array(); // Initialize CURL $ch = curl_init($url); // Tell CURL we are doing a POST curl_setopt ($ch, CURLOPT_POST, true); // Give CURL the arguments in the POST curl_setopt ($ch, CURLOPT_POSTFIELDS, $postargs); // Set the username and password in the CURL call curl_setopt($ch, CURLOPT_USERPWD, $username.':'.$password); // Set some cur flags (not too important) curl_setopt($ch, CURLOPT_VERBOSE, 1); curl_setopt($ch, CURLOPT_NOBODY, 0); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_FOLLOWLOCATION,1); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // execute the CURL call $response = curl_exec($ch); // Get information about the response $responseInfo=curl_getinfo($ch); // Close the CURL connection curl_close($ch); // Make sure we received a response from Twitter if(intval($responseInfo['http_code'])==200){ // Display the response from Twitter echo $response; }else{ // Something went wrong echo "Error: " . $responseInfo['http_code']; } } updateTwitter("Just finished a sweet tutorial on http://brandontreb.com"); ?> I get the following output Error: 0 Please help.

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  • Modify Django settings variables in a middleware

    - by jack
    I set a variable MAX_REQUEST = 100 in settings.py I write a middleware which may lower this value for request origining from a proxy ip address by the following code: settings.MAX_REQUEST = 10 However, looks like the above modification affects all legitimate users. Is it normal?

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  • Make CSV from list of string in LINQ

    - by CmdrTallen
    Hi I would like to take a list collection and generate a single csv line. So take this; List<string> MakeStrings() { List<string> results = new List<string>(); results.add("Bob"); results.add("Nancy"); results.add("Joe"); results.add("Jack"); } string ContactStringsTogether(List<string> parts) { StringBuilder sb = new StringBuilder(); foreach (string part in parts) { if (sb.Length > 0) sb.Append(", "); sb.Append(part); } return sb.ToString(); } This returns "Bob,Nancy,Joe,Jack" Looking for help on the LINQ to do this in a single statement. Thanks!

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  • NoMethodError for time_zone_select in a form

    - by Jack
    I've set up my app exactly in line with the Railscasts Time Zone Episode 1 but when I run <%= f.time_zone_select :time_zone, ActiveSupport::TimeZone.us_zones %> I get this error NoMethodError in Users#new Showing app/views/users/new.html.erb where line #27 raised: You have a nil object when you didn't expect it! You might have expected an instance of Array. The error occurred while evaluating nil.<= With line 27 being the aforementioned line. I am really stuck on this...

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  • Monthly Payment Processing

    - by jack
    I am building site for a client in .NET. The site has a monthly subscription service, wherein customer pay for the services with debit/credit card details. Money will be deducted from the account regularly. Customers can cancel the subscription service at any time and the collection should be stopped. Is there any service that I can use to accomplish this? Any information on how to go about developing this will be much appreciated. Thanks in advance.

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  • xmlrpc client call in python does not come back

    - by Jack Ha
    Using Python 2.6.4, windows With the following script I want to test a certain xmlrpc server. I call a non-existent function and hope for a traceback with an error. Instead, the function does not return. What could be the cause? import xmlrpclib s = xmlrpclib.Server("http://127.0.0.1:80", verbose=True) s.functioncall() The output is: send: 'POST /RPC2 HTTP/1.0\r\nHost: 127.0.0.1:80\r\nUser-Agent: xmlrpclib.py/1.0 .1 (by www.pythonware.com)\r\nContent-Type: text/xml\r\nContent-Length: 106\r\n\ r\n' send: "<?xml version='1.0'?>\n<methodCall>\n<methodName>functioncall</methodName >\n<params>\n</params>\n</methodCall>\n" reply: 'HTTP/1.1 200 OK\r\n' header: Content-Type: text/xml header: Cache-Control: no-cache header: Content-Length: 376 header: Date: Tue, 30 Mar 2010 13:27:21 GMT body: '<?xml version="1.0"?>\r\n<methodResponse>\r\n<fault>\r\n<value>\r\n<struc t>\r\n<member>\r\n<name>faultCode</name>\r\n<value><i4>1</i4></value>\r\n</membe r>\r\n<member>\r\n<name>faultString</name>\r\n<value><string>PVSS00ctrl (2), 2 010.03.30 15:27:21.395, CTRL, SEVERE, 72, Function not defined, functioncall , , \n</string></value>\r\n</member>\r\n</struct>\r\n</value>\r\n</fault>\r\n</m ethodResponse>\r\n' (here the program hangs and does not return until I kill the server) edit: the server is written in c++, using its own xmlrpc library

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  • Algorithms for subgraph isomorphism detection

    - by Jack
    This a NP Complete problem. More info can be found here http://en.wikipedia.org/wiki/Subgraph_isomorphism_problem The most widely used algorithm is the one proposed by Ullman. Can someone please explain the algorithm to me. I read a paper by him and couldn't understand much. Also what other algorithms for this problem. I am working on an image processing project.

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  • MySQL high IO usage quries

    - by jack
    MySQL has a built-in slow query logger. Is there any options or third-party tools which are able to detect the queries causing high IO usage just in the way like what slow query logger does?

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  • NTFS drivers on Linux

    - by Jack
    Hopefully this is programming related. Many people have reported that the NTFS-3G driver works perfectly for writing to NTFS drives without any problems. If NTFS has been successfully reverse engineered to a useful degree, then why is the kernel driver still only read-only, with write support being very dangerous.....just as it was 5 years agi?

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  • String searching algorithm for Chinese characters.

    - by Jack Low
    There are Python code available for existing algorithms for normal string searching e.g. Boyer-Moore Algorithm. I am looking to use this on Chinese characters and it doesn't seem like the same implementation would work. What would I go about doing in order to make the algorithm work on Chinese characters? I am referring to this: http://en.literateprograms.org/Boyer-Moore_string_search_algorithm_(Python)#References

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  • Windows console

    - by b-gen-jack-o-neill
    Hello. Well, I have a simple question, at least I hope its simple. I was interested in win32 console for a while. Our teacher told us, that windows console is just for DOS and real mode emulation purposes. Well, I know it is not true, becouse DOS applications are runned by emulator which only uses console to display output. Another thing I learned is that console is built into Windows since NT. Well. But what I could not find is, how actually are console programs written to use console. I use Visual C++ for programming (well, for learning). So, the only thing I need to do for using console is select console project. I first thought that windows decides wheather it run app in console or tries to run app in window mode. So I created win32 program and tried printf(). Well, I could not compile it. I know that by definition printf() prints text or variables to stdout. I also found that stdout is the console interface for output. But, I could not find what actually stdout is. So, basicly what I want to ask is, where is the difference between console app and win32 app. I thought that windows starts console when it gets command from "console-family" functions. But obvisously it does not, so there must be some code that actually commands windows to create console interface. And the second question is, when the console is created, how does windows recognize which console terminal is used for what app? I mean, what actually is stdout? Is it a area in memory , or some windows routine that is called? Thanks.

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  • How to determine visibility in 2D

    - by Jack
    Hello, I'm developing an AI sandbox and I would like to calculate what every living entity can see. The rule is to simply hide what's behind the edges of the shapes from the point of view of the entity. The image clarifies everything: I need it either as an input to the artificial intelligence either graphically, to show it for a specific entity while it moves.. Any cool ideas?

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