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  • How can I get the path separator in Perl?

    - by ram
    In case of Java, we can get the path separator using System.getProperty("path.separator"); Is there a similar way in Perl? All I want to do is to find a dir, immediate sub directory. Say I am being given two arguments $a and $b; I am splitting the first one based on the path separator and joining it again except the last fragment and comparing with the second argument. The problem is my code has to be generic and for that I need to know whats the system dependent path separator is?

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  • Understanding Clojure concurrency example

    - by dusha
    Hello, I just go through various documentation on Clojure concurrency and came accross the example on the website (http://clojure.org/concurrent_programming). (import '(java.util.concurrent Executors)) (defn test-stm [nitems nthreads niters] (let [refs (map ref (replicate nitems 0)) pool (Executors/newFixedThreadPool nthreads) tasks (map (fn [t] (fn [] (dotimes [n niters] (dosync (doseq [r refs] (alter r + 1 t)))))) (range nthreads))] (doseq [future (.invokeAll pool tasks)] (.get future)) (.shutdown pool) (map deref refs))) I understand what it does and how it works, but I don't get why the second anonymous function fn[] is needed? Many thanks, dusha. P.S. Without this second fn [] I get NullPointerException.

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  • C# programmer - necessary to learn C/C++?

    - by Kurresmack
    Hey, I have been programming now for a couple of years. But never any low level language. I started off with some java and some VB. Then I went over to VB.NET and now for a while I have been writing C#. As you see, I have never written any low level language where I had to deal with memory management. Is this something I should do, like a route of passage that every programmer should go through? I am a bit keen on trying to perhaps writing in assembler directly. This would suit me personally good as I have 2 parents that have been writing assembler for ages. Is it necessary for a professional programmer these days to know how to manually manage memory?

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  • Php Two Combo box in a form control each other. How?

    - by azad
    On php page in a form, One combo box has list of my Customer from mysql table customer. Another combo box has invoiceno stored in invoice table which has respective customer records. I want to select customer from first combo box and filter invoiceno from the second one according to the customer. Any one help me for php or java or Jquery or both codeings? Means if I select customer1 then in the second combo box should show all invoiceno respective to the custermer1. No Refresh or ReLoad or Post form Pl. If I get the first selection in a php variable format example $customer, it is enough for me. Thanks for any one help me.

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  • Why can't I access Jetty running on my Mac via my iPhone?

    - by bpapa
    I'm developing an iPhone app that has a network component. I'm developing the app in Java (Google App Engine actually), running on port 8080. And it works, when I test my app in the iPhone simulator. But now I am trying to test on the device, and I can't hit my Jetty instance. I can certainly access my Mac via the iPhone because I'm able to hit http://10.0.1.7/~brianpapa/ and view my Home Folder when Web Sharing is turned on. But when I try to hit http://10.0.1.7:8080/, it says it can't connect to the server. Interestingly, if I try to hit http://10.0.1.7:8080/ from my mac, it doesn't work either - I have to use localhost as the hostname instead, then it's fine. Has anybody ever encountered this before, and know how to fix it?

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  • Validating call to web service against schema before sending request

    - by Cen
    I am calling a web service (written in Java) in my web app. I use the WSDL to generate proxy classes using the wsdl.exe command line tool. Everything is working fine. However, I have found out that the web service is not doing any data validation at all when they receive a request from my app. Hence, if I happen to send one minute piece of data that isn't exactly what they want, I receive a general fault error in return, with no specifics at all of what the incorrect (if any) piece of data is. So, before I make the request, I'd like to validate my request against the schema they have provided. Is this possible, and if so, how do I go about this? Thanks in advance

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  • How to get latitude and longitude position that stored in MySQL and use it in Android map application

    - by gunawan haruna
    I have tried to get the latitude and longitude position that was stored in MySQL. I want use the values to my Android map application. Here is my code: deskripsi.Java Button direction = (Button) findViewById (R.id.btnDir); direction.setOnClickListener(new OnClickListener(){ public void onClick(View arg0) { Intent z = getIntent(); des_lat = z.getExtras().getString("des_lat"); des_long = z.getExtras().getString("des_long"); Intent i = new Intent(android.content.Intent.ACTION_VIEW, Uri.parse("http://maps.google.com/maps?&daddr="+des_lat+","+des_long)); //("geo:37.827500,-122.481670")); startActivity(i); } }); And here is the content.Java private ListView list; int x; private String panjang[]; public void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.kontent); super.initButtonSearch(); list = (ListView) findViewById(R.id.list); JSONObject jo; try { jo = new JSONObject(JsonKontent); JSONArray ja = jo.getJSONArray("result"); System.out.println("Panjang : " + ja.length()); if (ja.length() == 0) { Toast.makeText(Content.this, "Data tidak ada!", Toast.LENGTH_LONG).show(); finish(); } content_id = new String[ja.length()]; c_title = new String[ja.length()]; c_telephone = new String[ja.length()]; c_short_description = new String[ja.length()]; c_long_description = new String[ja.length()]; c_image1 = new String[ja.length()]; c_image2 = new String[ja.length()]; l_address = new String[ja.length()]; catagory_id = new String[ja.length()]; Location myLoc = new Location("sharedPreferences"); Location restLoc = new Location("restaurantTable"); l_latitude = new String[ja.length()]; l_longitude = new String[ja.length()]; c_name = new String[ja.length()]; panjang = new String[ja.length()]; for (x = 0; x < ja.length(); x++) { JSONObject joj = ja.getJSONObject(x); content_id[x] = joj.getString("content_id"); catagory_id[x] = joj.getString("catagory_id"); c_title[x] = joj.getString("c_title"); c_telephone[x] = joj.getString("c_telephone"); c_short_description[x] = joj.getString("c_short_description"); c_long_description[x] = joj.getString("c_long_description"); c_image1[x] = HTTPConnection.urlPicture + joj.getString("c_image1"); c_image2[x] = HTTPConnection.urlPicture + joj.getString("c_image2"); l_address[x] = joj.getString("l_address"); l_latitude[x] = joj.getString("l_latitude"); l_longitude[x] = joj.getString("l_longitude"); c_name[x] = joj.getString("c_name"); myLoc.setLatitude(myLatitude); myLoc.setLongitude(myLongitude); restLoc.setLatitude(Double.parseDouble(l_latitude[x])); restLoc.setLongitude(Double.parseDouble(l_longitude[x])); float f = myLoc.distanceTo(restLoc); int f_int = Math.round(f / 100); f = Float.valueOf(f_int) / 10; String dist = new DecimalFormat("#,##0.0").format(f); System.out.println("Panjang " + dist + " km"); panjang[x] = dist + " km"; } } catch (JSONException e) { Toast.makeText(Content.this, "Data yang dicari tidak ada!", Toast.LENGTH_LONG).show(); finish(); } PFCAdapter adapter = new PFCAdapter(this, c_image1, c_title, l_address, panjang); list.setAdapter(adapter); list.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { // TODO Auto-generated method stub System.out.println("Content ID: " + Content.content_id[Deskripsi.id]); Deskripsi.id = arg2; waitDialog = ProgressDialog.show(Content.this, "Memuat", "Harap tunggu, sedang terhubung dengan server"); waitDialog.setIcon(R.drawable.iconnya); waitDialog.show(); new LihatRatingTask().execute(); } }); } class LihatRatingTask extends AsyncTask<Void, Void, Void> { protected Void doInBackground(Void... Arg0) { Deskripsi.jsonRating = HTTPConnection.openUrl(HTTPConnection.host + "lihat_rating.php?content_id=" + Content.content_id[Deskripsi.id]); Deskripsi.jsonSubCategory = HTTPConnection .openUrl(HTTPConnection.host + "sub_catagory_parameter.php?content_id=" + Content.content_id[Deskripsi.id]); RoutePath.place = HTTPConnection .LoadImageFromWeb(HTTPConnection.host + "Logo/" + image[Integer.valueOf(catagory_id[Deskripsi.id]) - 1]); Intent i = new Intent(Content.this, Deskripsi.class); i.putExtra("des_lat", l_latitude); i.putExtra("des_long", l_longitude); startActivity(i); waitDialog.dismiss(); return null; } protected void onPostExecute(Void result) { // TODO Auto-generated method stub super.onPostExecute(result); waitDialog.dismiss(); } } } The result is in destination EditText in maps application for Android "null,null" How to make it "destination_latitude, destination_longitude"? Help me please.

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  • Produce high-quality, custom-size thumbnails from Office documents on Windows?

    - by Edwin
    Hi, What do you think would be the best way to produce custom size image thumbnail from MS Office documents (doc, xls and ppt) on Windows with native code (means all means besides .NET/JAVA)? My current research result: IExtractImage COM. Problem: The size of the generated result is fixed and low quality, and you can't be sure all the source documents contain the thumbnails. Use a programmable virtual printer to print the specified page, and the printer must support image output, any good suggestion for this? What else would you suggest? thanks!

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  • Updating display of elements on the web page without refreshing the whole page

    - by ivorossi3
    Last time I coded a web application was almost 10 years ago. I used Java/JSP/HTML/CSS etc. I've been coding non-web applications only ever since. When I look at modern sites now (like this one), I realize how my web development skills are obsolete. Maybe the most obvious "feature" that I wouldn't know how to implement now is the update of elements on the page after user input without having to refresh the whole page (e.g. the voting/downvoting here updates the vote count without reloading the whole page). What are the basic technologies behind this?

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  • Can I pass a string variable into an <a href> tag for a website link?

    - by Joseph
    I am somewhat new to web developing, so I am trying to learn along the way. I have a div that is 500 x 500. Inside of that div I have two divs that are each 250x500. So my outer div is filled up with the two inner divs. I have it setup so that when I click on the first div (the left one) a java script is called, and a prompt pop up box asks for a website URL which is then stored inside of a string variable. How can I make it so that the second div (the right one) takes the string variable from the alert box from the left div and puts it into an a href tag so that I can link to the website from the right div? Can a a href tag accept a value from a variable for its link? Maybe I am going about this all wrong, is there a better way I should be approaching this? Any help is appreciated!!

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  • What are the exact versions of stuff you have to install in order to be able to step-debug a Scala p

    - by Alex R
    How do YOU debug a Scala program? I mean YOU as in the person posting the Answer :) Please answer only from personal experience, not from stuff you've heard or read on the Internet. You should not believe everything you read on the Internet, especially tales of complex open-source software configurations that actually work :-) The are many Java tools which claim to support Scala in some way or another, but I have so far struck out in trying to get any one of them to actually let me set a breakpoint in Scala code and step through it. These are big, major open-source IDEs I'm talking about here. The main problem in getting a debugger to work seems to be the "version hell" with fast-changing IDEs, Plug-Ins, JDKs, and the Scala language itself. Hence, the more detailed re-statement of the question is appropriate: What is the exact version number of the IDE, Plug-In, JDK, Scala, and even Operating System, that you are successfully using? My question is related to this one, but wider in scope: http://stackoverflow.com/questions/2272705/how-to-debug-scala-code-when-outside-of-an-ide Thanks

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  • How to implement partial refresh like facebook like/comments?

    - by shillong
    We have java web application. Summary page will display list of rows. For each row, user can vote and add comments. Vote or add comments will commit immediately and refresh total vote number and comments count. We want to refresh current row instead of whole table just like Facebook does. If need, we can show the list of data with form format (iterator List of data) instead of table format. How to implement this feature base on JSF?

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  • I would like to learn C++, what is the first step ?

    - by Cesar
    My actual experience comes from PHP and Delphi(Borland) and recently also from Obj-C (iPhone sdk). In the past I also used Java, Python, VB 6 and some other scripting language. I would like to learn C++ because i need a standard tool for write compiled applications with good performance but i have no idea about witch environment i have to choose (Ex: Borland, Microsoft, Eclipse+MinGW, ...). Based those parameters: Most useful more opensource project or work requests Most standard not a proprietary versions Biggest community documentation, manuals, tutorials, forums... Better IDE add-ons, highlight, debug, cross platform, autocomplete... Easy setup A simple setup, to focus on learning the basics Actually I'm on OSX but I can use a VM if needed. Advices about tutorial or books are welcome. I hope it's not too generic as question.

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  • IIS 7 problem which does not occur under apache

    - by cc0
    I'm hosting a little site using a JavaScript to draw a simple graph. It involves one html index file, some css and some js files. It has all been working perfectly on two different apache servers, but when I set up IIS 7 the ajax calls fail. I get no java debug errors in firefox that I can work with, or any kind of error message at all. Without going into the code itself, does anyone have a similar experience with IIS? This is the first time I'm using IIS so I'm not quite sure what to expect to have trouble with. I'd love some input on this, if I have to delve into the code itself I'll make a new thread, I just thought I'd see if this could be a typical issue. Any help is appreciated!

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  • How to document a Symfony based REST API (similar to enunciate's documentation capabilities)

    - by Dominic
    If I have a REST based service written in the Symfony [symfony-project.org] framework (i.e. PHP), is there any decent tools/frameworks out there that will parse my code and generate API documentation? The Java based framework enunciate has documentation capabilities similar to what I need, you can view an example of this here: http://enunciate.codehaus.org/wannabecool/step1/index.html. I understand the premise of REST based services are supposed to be self evident, however I was after something that would generate this documentation for me without the need to manually write up all my endpoints, supported formats, sample output etc. Thanks

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  • Oracle Triggers Query..

    - by AGeek
    Lets consider a Table STUD and a ROW-Level TRIGGER is implemented over INSERT query.. My scenario goes like this, whenever a row is inserted, a trigger is fired and it should access some script file which is placed in the hard disk, and ultimately should print the result. So, is this thing is possible? and if yes, then this thing should exist in dynamic form, i.e. if we change the content of script file, then the oracle should reflect those changes as well. I have tried doing this for java using External Procedures, but doesn't feel that much satisfied with the result that i wanted. Kindly give your point-of-view for this kind of scenario and ways that this can be implemented.

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  • Spring data mapping problem.

    - by Yashwant Chavan
    Hi, I am using spring and hibernate along with my different components There is date field in DB as contract_end_date as a Date , so my pojo also contains date getter setter for contract_end_date, but when i submit form to Multiaction controller it gives data bindding exception for contract_end_date. It trying to search string getter setter for contract_end_date. So is there is any solution to handle this kind of problem. This is my pojo. after sumitting the form getting data binding exception public class Clnt implements java.io.Serializable { private String clntId; private String clntNm; private String busUnitNm; private String statCd; private String cmntTx; private Date contractEndDt; }

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  • Some Simple Questions for knowledge?

    - by dhaliwaljee
    Before Some days my friend ask me some simple questions, but I have no answer. Please tell me about these questions. How many computer programming languages are used all in the world ? I want to create a language like 'java or c#'. What is the procedure for creating a language and how it will create? Which language is used for manipulate Window operating system? What is the procedure of create Operating System like Windows/Linux/Mac and in which language it should create? What is the procedure of create open source framework project in javascript and php?

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  • Is sending a PDF as encoded byte array in XML sensible

    - by simonjwoods
    Hi I am looking to return a PDF from a webservice call. (ATM, a custom proxy is required at the client-side) AFAICS, there are 2 ways of doing it a) Return the link to a web-accessible location b) Encode the PDF and include it in the XML In my circumstance, a) will require 2 trips from the client, the first to get the path and the second to get the file. However, wrt b), this link (http://www.coderanch.com/t/279020/Streams/java/wrting-bytearray-xml-file#1283263) suggests that it isn't a good idea to encode a PDF, though without explanation. I'd be grateful if someone would offer recommendations of the above (and potentially, other alternatives). Many thx Simon

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  • Using typedefs (or #defines) on built in types - any sensible reason?

    - by jb
    Well I'm doing some Java - C integration, and throught C library werid type mappings are used (theres more of them;)): #define CHAR char /* 8 bit signed int */ #define SHORT short /* 16 bit signed int */ #define INT int /* "natural" length signed int */ #define LONG long /* 32 bit signed int */ typedef unsigned char BYTE; /* 8 bit unsigned int */ typedef unsigned char UCHAR; /* 8 bit unsigned int */ typedef unsigned short USHORT; /* 16 bit unsigned int */ typedef unsigned int UINT; /* "natural" length unsigned int*/ Is there any legitimate reason not to use them? It's not like char is going to be redefined anytime soon. I can think of: Writing platform/compiler portable code (size of type is underspecified in C/C++) Saving space and time on embedded systems - if you loop over array shorter than 255 on 8bit microprocessor writing: for(uint8_t ii = 0; ii < len; ii++) will give meaureable speedup.

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  • [Linux] Coding a GTK+ application without window manager?

    - by ShoX
    Hi, I want to code sth. that basically works like TiVo. Switch it on, you only see the menu or an output, so no underlying OS or anything else is directly visible to the user. So I want to use Linux as base. Can you suggest a good base distribution? Can I code a frontend without having a window-manager up and running? If yes, is that possible with java-gnome or what language/gui-framework combination would you suggest? If no, what's the minimal window manager that can handle fancy menus, etc? What does it take to create video-overlays over a HD-stream? Are there some libraries I should take a look at? Thanks

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  • Using Drools to provide error processing and consequence management

    - by Mike
    Hi, I am working on a module whose purpose is to process Java exceptions and decide upon a strategy for dealing with them. The exceptions could be things I know about (explicit business exceptions eg TransformationException) or more general environmental stuff (JMS errors, IO errors etc) The facts inserted into the knowledge base are all the same class, and wrap (contain) an Exception. I want to write a rule that will explicitly match the exceptions I know how to deal with (eg TransformationException) and have another rule that catches 'everything else' The problem seems to me to be that for a fact containing a TransformationException, both rules will fire and the output will be uncertain. How would I go about writing such exclusive rules without relying on salience to steer the order of execution (this seems to be bad practice from what I have read)? I have a solution in place that I am not happy with whereby the outcome depends on the order in which the rules are defined in my .drl.

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  • I know the big picture but can't put it in place

    - by Simbilim
    Hi, I'm interested in web development and by that I mean the bigger projects like facebook or twitter. I know the basics of java, css, php and mysql. I know there is a lot more out there. I read about it. But I don't know what the purpose is and how to put in place. Things like: Scribe, thrift, casandra, Unix/Linux, shell/perl/python scripting, PostgreSQL, MongoDB, non-relational NoSQL datastores, JVM, nginx I want to know why they need it, how they use it and what te purpose is. What I need is a book like technical background of facebook for dummies or so. Are there any books or websites that explain this from scratch? Thank you!

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  • xmlhttprequest responsetext coming for Accept header: text/xml , but server error for application/JS

    - by encryptor
    I have to get response text from a resourceindex page as JSON object. When I dont put a Accept header in the request, it shows me the xml response (i see it in an alert).. But I want the response as a JSON object.. What should I do. One solution would have been httpRequest.setRequestHeader('Accept', 'application/JSON'); but this gives me a server error :500 Also it says A message body writer for Java type, class ...., and MIME media type, application/octet-stream, was not found Can someone suggest on what to do to overcome this and get the response as JSON?

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  • How to disable Eclipse's behavior of maximizing editor when double clicking a tab?

    - by Steve Kehlet
    I recently updated my Eclipse (now running 20100218-1602), and I've found whenever I click around quickly between tabs on the tab bar, it will sometimes maximize the editor and hide the PHP Explorer to the left. After researching a little, this appears to be a feature of double clicking a tab. So I guess it's my fault, I'm sure I'm clicking around too fast and mistakenly double clicking a tab, but it happens often enough on what I'd consider a normal editing session that I've come to absolutely loathe it, and even after the usual googling due diligence cannot figure out how to turn it off. From this post (http://stackoverflow.com/questions/594659/eclipses-tab-double-click-on-visual-studio) someone mentions the Window.AutoHideAll shortcut, however that seems to only be for assigning keyboard shortcuts--this is a mouse click thing. But maybe it's a clue. I can't find anything relevant under Eclipse - Preferences - PHP. I don't think it's specific to PHP because if I switch to the Java perspective, double clicking a tab hides the Package Explorer. Any suggestions are appreciated, thanks!

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