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  • Should I continue teaching old Java input methods alongside the new ones?

    - by user1598390
    I've been imparting a Java introduction course for several years. Some slides explain how to read from files and keyboard using BufferedReaders, InputStreams, FileInputStreamReaders etc. I'm adding slides explaining how to achieve this using more up to date approaches like Scanner. Should I leave out the old BufferedReaders, InputStreams and FileInputStreamReaders slides altogether, and teach only the new methods, or should I continue to teach these methods for the sake of completeness ? Will my students benefit from learning how to read from files and keyboard the old way ?

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  • How to create browser based software?

    - by erkant
    I have recently used some software, which come as a regular setup file, where you install your software, and then when you run it, opens the browser, uses the localhost with some specific port number to connect to the software, and runs it from there. I find it quite useful and interesting. But I even don't know whether this kind of software and programming methodology have a name or not. Therefore, I would like to learn which programming languages, APIs, and frameworks are specifically designed for this purpose? One example to this is Metasploit. You can download its setup file, and install it casually like any other software, then when everything finishes, and you want to use the software. It will open the browser and connect to, http://localhost:3790/ where Metasploit will load and start.

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  • Books about Windows Os Programming [closed]

    - by LostInLib
    I'm trying to develop a desktop application which is similar to CCleaner. But I'm having problems with R&D resources... I can't find good books about Windows Operating System Programming Topic Examples; Explaining Windows 7 (or even 8) registry. Which registry entry turn on/off "showing desktop icons" Or, What is Windows registry defrag?, How can you defrag registry?, How can you optimize windows startup for( Windows 7 ) etc. I googled my questions, find msdn-some stackoverflow topics etc. But I can't find a book about low-level explaining current windows 7 operating system... What I'm missing ? Thanks for your any input... and sorry, I don't know is this the right place to ask that question, but I asked anyway...

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  • Dynamic quicklist: how to reference to .desktop file? (installed in /opt)

    - by Nick Lemaire
    I'm trying to create a dynamic quicklist for an application I'm developing in quickly. This is the line of code I use to try and connect to the .desktop file: self.launcher = Unity.LauncherEntry.get_for_desktop_id("my-app.desktop") For testing purposes, I've found that when using quickly run I should copy the .desktop file to ~/.local/share/applications. When I do this, the quicklist shows up correctly. However, when packaging my app using quickly package --extras, and installing this package, I get a launcher without quicklist. Does this have something to do with my app being installed in /opt? Meaning my desktop file is located somewhere else? Should I use another reference to the desktop file?

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  • What do ptLineDist and relativeCCW do?

    - by Fasih Khatib
    I saw these methods in the Line2D Java Docs but did not understand what they do? Javadoc for ptLineDist says: Returns the distance from a point to this line. The distance measured is the distance between the specified point and the closest point on the infinitely-extended line defined by this Line2D. If the specified point intersects the line, this method returns 0.0 Doc for relativeCCW says: Returns an indicator of where the specified point (PX, PY) lies with respect to the line segment from (X1, Y1) to (X2, Y2). The return value can be either 1, -1, or 0 and indicates in which direction the specified line must pivot around its first endpoint, (X1, Y1), in order to point at the specified point (PX, PY). A return value of 1 indicates that the line segment must turn in the direction that takes the positive X axis towards the negative Y axis. In the default coordinate system used by Java 2D, this direction is counterclockwise. A return value of -1 indicates that the line segment must turn in the direction that takes the positive X axis towards the positive Y axis. In the default coordinate system, this direction is clockwise. A return value of 0 indicates that the point lies exactly on the line segment. Note that an indicator value of 0 is rare and not useful for determining colinearity because of floating point rounding issues. If the point is colinear with the line segment, but not between the endpoints, then the value will be -1 if the point lies "beyond (X1, Y1)" or 1 if the point lies "beyond (X2, Y2)".

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  • Accepting a numerical range in a function call

    - by dekpos
    I have encountered two ways of doing it: void foo(int from, int to); /* 'from' inclusive, 'to' exclusive */ void foo(int startIndex, int rangelength); Has one style historically been preferred over the other? If so, was it just a matter of convention or was it due to some deeper underlying reason? I'm currently programming in Java and noticed that the Arrays class uses the former style. The exclusivity of the to argument felt somewhat unintuitive to me, which led me to ask this question.

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  • Vertex Array Object (OpenGL)

    - by user5140
    I've just started out with OpenGL I still haven't really understood what Vertex Array Objects are and how they can be employed. If Vertex Buffer Object are used to store vertex data (such as their positions and texture coordinates) and the VAOs only contain status flags, where can they be used? What's their purpose? As far as I understood from the (very incomplete and unclear) GL Wiki, VAOs are used to set the flags/status for every vertex, following the order described in the Element Array Buffer, but the wiki was really ambiguous about it and I'm not really sure about what VAOs really do and how I could employ them.

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  • Software development based on a reference implementation

    - by Kanishka Dilshan
    Lets say I have library "A2" as a dependency in a project. Library "A2" is derived from library "A1" where someone has done few changes to the library "A1" 's source code. Lets say there is a new version of "A1" I want to use the new version but no modification to its sourcecode at all. I am planning to identify what are the changes done to the original library when deriving library "A2" out of it and decorate the latest version of the library with those changes. Is it a good approach to solve this? if not can someone suggest the best approach to solve this kind of problems?

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  • "Unable to initialize module" warning after update PHP on CentOS 5.4

    - by ohho
    After upgrading PHP from 5.1x to 5.2.10, there are a lot of warning when php -v: [root@localhost ~]# php -v PHP Warning: PHP Startup: fileinfo: Unable to initialize module Module compiled with module API=20050922, debug=0, thread-safety=0 PHP compiled with module API=20060613, debug=0, thread-safety=0 These options need to match in Unknown on line 0 PHP Warning: PHP Startup: mcrypt: Unable to initialize module Module compiled with module API=20050922, debug=0, thread-safety=0 PHP compiled with module API=20060613, debug=0, thread-safety=0 These options need to match in Unknown on line 0 PHP Warning: PHP Startup: memcache: Unable to initialize module Module compiled with module API=20050922, debug=0, thread-safety=0 PHP compiled with module API=20060613, debug=0, thread-safety=0 These options need to match in Unknown on line 0 PHP Warning: PHP Startup: mhash: Unable to initialize module Module compiled with module API=20050922, debug=0, thread-safety=0 PHP compiled with module API=20060613, debug=0, thread-safety=0 These options need to match in Unknown on line 0 PHP Warning: PHP Startup: mssql: Unable to initialize module Module compiled with module API=20050922, debug=0, thread-safety=0 PHP compiled with module API=20060613, debug=0, thread-safety=0 These options need to match in Unknown on line 0 PHP Warning: PHP Startup: readline: Unable to initialize module Module compiled with module API=20050922, debug=0, thread-safety=0 PHP compiled with module API=20060613, debug=0, thread-safety=0 These options need to match in Unknown on line 0 PHP Warning: PHP Startup: tidy: Unable to initialize module Module compiled with module API=20050922, debug=0, thread-safety=0 PHP compiled with module API=20060613, debug=0, thread-safety=0 These options need to match in Unknown on line 0 PHP 5.2.10 (cli) (built: Nov 13 2009 11:24:03) Copyright (c) 1997-2009 The PHP Group Zend Engine v2.2.0, Copyright (c) 1998-2009 Zend Technologies How can I fix that? Thanks!

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  • GetUserDefaultLocaleName() API is crashing

    - by Santhosha
    I have one application which reads user default locale in Windows Vista and above. When i tried calling the API for getting User default Locale API is crashing. Below is the code, It will be helpfull if any points the reason #include <iostream> #include <WinNls.h> #include <Windows.h> int main() { LPWSTR lpLocaleName=NULL; cout << "Calling GetUserDefaultLocaleName"; int ret = GetUserDefaultLocaleName(lpLocaleName, LOCALE_NAME_MAX_LENGTH); cout << lpLocaleName<<endl; }

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  • OpenCV 2.0 C++ API using imshow: returns unhandled exception and "bad-flag"

    - by Konrad
    I'm trying to use the new OpenCV 2.0 API in MS Visual C++ 2008 and wrote this simple program: cv::Mat img1 = cv::imread("image.jpg",1); cv::namedWindow("My Window", CV_WINDOW_AUTOSIZE); cv::imshow("My Window", img1); Visual Studio returnes an unhandled exception and the Console returns: OpenCV Error: bad flag (parameter or structure field) (Unrecognized or unsupported array type) in unknown function, file ..\..\..\..\ocv\opencv\src\cxcore\cxarray.cpp, line 2376 The image is not displayed. Furthermore the window "My Window" has a strange caption: "ÌÌÌÌMy Window", which is not dependent on the name. The "old" C API using commands like cvLoadImage, cvNamedWindow or cvShowImage works without any problem for the same image file. I tried a lot of different stuff without success. I appreciate any help here. Konrad

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  • Google Reader API HTTP Response parsing (Objective C)

    - by JustinXXVII
    Using the API, trying to get items in a specific feed returns this: {“direction”:”ltr”,”id”:”feed/http://arstechnica.com/index.rssx”,”title”:”Ars Technica”,”description”:”The Art of Technology”,”self”:[{"href":"http://www.google.com/reader/api/0/stream/contents/feed/http://arstechnica.com/index.rssx?ot\u003d1273193172856169\u0026r\u003dn\u0026xt\u003duser/-/state/com.google/read\u0026n\u003d4\u0026ck\u003d1273193873\u0026client\u003diPadReader"}],”alternate”:[{"href":"http://arstechnica.com/index.php","type":"text/html"}],”updated”:1273193873,”items”:[]} They look like key/value pairs but it’s plain text with UTF8 String encoding and won’t encode into a dictionary. I’m using Objective-C and I’m not sure where to go from here. So far I’ve been able to parse the XML response for unread items, but parsing the plain-text doesn’t look feasible. What is your practice?

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  • Getting Permissions error while using stream.publish method of facebook API

    - by tek3
    Hi I want to publsh a post on user's wall but am getting this "permission error" error code 200 when trying to use stream.publish method of facebook api...i hve requested for extended permissions as: http://m.facebook.com/login.php?api%5Fkey="+API_KEY&....&req_perms=read_stream,publish_stream,offline_access but when i make call to the method stream.publish i am getting this permission error..it seems that req_perms in above url is simply getting ignored.. i am passing "method(stream.publish)","api_key","message","session_key","v","sig" as parametres to url http://api.facebook.com/restserver.php? will be greatful if anyone helps meout in this problem or provide me with proper steps for publishing a post on user's wall...the application is being developed on blackbery platform..

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  • Access Products/Category/Attribute Info from php with Magento API

    - by Jason
    Need to be able to pull Magento products into an external template. Need to be able to get all products data (description, title, attributes, categories, image, etc). And need to be able to filter by category, attribute and also search on name. These calls will be made from the same server that the Magento install is on. What's the best way to do this? Will be using php on both linux & windows (2 separate sites). Have tried using the Magento API & Soap to access from php but haven't been able to get that to work yet. All I get is this error every time. Fatal error: Uncaught SoapFault exception: [WSDL] SOAP-ERROR: Parsing WSDL: Couldn't load from 'http://mymagento.com/cart/index.php/api/?wsdl' : Extra content at the end of the document in.....

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  • Deleting blog post using Blogger API, Javascript and Prototype

    - by Mikhail
    Hello, everyone! I'm trying to delete a blog post on blogger.com using Blogger API via Prototype Javascript library. Here's my code: var request = new Ajax.Request( 'http://www.blogger.com/feeds/'+remoteBlogId+'/posts/default/'+postId { method:'DELETE', requestHeaders:['Authorization', 'GoogleLogin auth='+authKey], on200:function(){/*onSuccess*/}, onFailure:function(){/*onFailure*/} } ); As far as I can see from API description, everything's alright, but when I run this, it fires onSuccess function, but doesn't delete the entry on the server. I guess that Prototype doesn't work well with HTTP methods other than GET and POST (here's the ticket describing similar problem though proposed patch didn't work for me) Any help is appreciated! Thanks in advance, Mikhail.

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  • Error preverifying class NetBeans 6.8 using lwuit api

    - by Santiago
    I'm trying to develop a portable J2ME appli, but Netbeans do a class preverification of LWUIT library that uses optional APIs that some configurations don't have, so I get this error when I try to compile on a configuration without JRS-184 (M3G Optional API): Error preverifying class com.sun.lwuit.animations.Transition3D VERIFIER ERROR com/sun/lwuit/animations/Transition3D.initTransition()V: Cannot find class javax/microedition/m3g/Node I don't want to remove the classes from the LWUIT API because that classes works on other configurations compatibles with JRS-184 What I want is that NetBeans do not preverify the library, It is posible? Here are some code: //#ifdef JSR184 //# import com.sun.lwuit.animations.Transition3D; //#else import com.sun.lwuit.animations.CommonTransitions; //#endif Transition out; //#ifdef JSR184 //# out = Transition3D.createRotation(500, true); //#else out = CommonTransitions.createSlide(CommonTransitions.SLIDE_HORIZONTAL, true, 500); //#endif setTransitionOutAnimator(out); Thanks

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  • Using the PayPal API in an iPhone application

    - by jaynaiphone
    Hello I want to use Paypal in my iphone application, I have find the soapRequest to integrating the paypal API. My code is NSString *soapMessage = [NSString stringWithFormat: @"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" "<SOAP-ENV:Envelope xmlns:xsi= \"http://www.w3.org/2001/XMLSchema-instance\" xmlns:SOAP-ENC=\"http://schemas.xmlsoap.org/soap/encoding/\" xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" SOAP-ENV:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">\n" "<SOAP-ENV:Header>\n" "<RequesterCredentials xmlns=\"urn:ebay:api:PayPalAPI\">\n" "<Credentials xmlns=\"urn:ebay:apis:eBLBaseComponents\">\n" "<Username>api_username</Username>\n" "<Password>api_password</Password>\n" "<Signature/>\n" "<Subject/>\n" "</Credentials>\n" "</RequesterCredentials>\n" "</SOAP-ENV:Header>\n" "<SOAP-ENV:Body>\n" "<specific_api_name_Req xmlns=\"urn:ebay:api:PayPalAPI\">\n" "<specific_api_name_Request>\n" "<Version xmlns=urn:ebay:apis:eBLBaseComponents”>service_version</Version>\n" "<required_or_optional_fields xsi:type=”some_type_here”>\n" "</required_or_optional_fields>\n" "</specific_api_name_Request>\n" "</specific_api_name_Req>\n" "</SOAP-ENV:Body>\n" "</SOAP-ENV:Envelope>\n"]; NSLog(@"Soap message===%@",soapMessage); NSString *parameterString = [NSString stringWithFormat:@"USER=%@&PWD=%@&SIGNATURE=%@&VERSION=57.0&METHOD=SetMobileCheckout&AMT=%.2f&CURRENCYCODE=USD&DESC=%@&RETURNURL=%@", userName, password, signature, donationAmount, @"Some Charge", returnCallURL]; NSLog(parameterString); NSURL *url = [NSURL URLWithString:paypalUrlNVP]; NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url]; NSString *msgLength = [NSString stringWithFormat:@"%d", [parameterString length]]; [theRequest addValue: msgLength forHTTPHeaderField:@"Content-Length"]; [theRequest setHTTPMethod:@"POST"]; [theRequest setHTTPBody: [parameterString dataUsingEncoding:NSUTF8StringEncoding]]; NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; if( theConnection ){ webData = [[NSMutableData data] retain]; // [self displayConnectingView]; }else{ NSLog(@"theConnection is NULL"); } But here I am not getting the value of paypalUrlNVP. How can i get it?? And if possible then please give some example of paypalAPI integration in iphone. I also want to use checkout functionality.I am new in this field so I have no idea about it. So, kindly give me whole sample code. Thanks in advance.

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  • shell_exec escaping quotes in php for Twitter API

    - by yc10
    I'm (lazily) using shell_exec() to execute a Twitter API Call. shell_exec('curl -u user:password -d "id=3191321" http://api.twitter.com/1/twitterapi/twitterlist/members.xml'); That works fine when I authenticate correctly and put in a number for the id. But when I try to put in a variable ($id), it screws up. $addtolist = shell_exec('curl -u pxlist:Weekend1 -d "id='.$id.'" http://twitter.com/username/twitterlist/members.xml'); I tried flipping the quote types $addtolist = shell_exec("curl -u pxlist:Weekend1 -d 'id=$id' http://twitter.com/username/twitterlist/members.xml"); I tried using double quotes and escaping them $addtolist = shell_exec("curl -u pxlist:Weekend1 -d \"id=$id\" http://twitter.com/username/twitterlist/members.xml"); None of them worked. What am I doing wrong?

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  • REST api ambiguity and WADL

    - by JDonner
    I have a REST api that's ambiguous, something like (this isn't the specific problem, just gives an idea of the ambiguity): /toplevel/${customer_number}/some_command/more stuff /toplevel/${customer_number}/${some_product_name_anything_goes}/more stuff We've been getting away with it because our .htaccess file lists the more specific 'command' form before the general ${product_name} version, and the first match wins. Now though, we're writing a WADL, and, as you might expect, we're having trouble with our chosen tool consuming the WADL, because the API is ambiguous. My questions are: a) Does the WADL spec speak to whether they can validly represent ambiguous APIs? b) Tool support - in your experience, do tools choke on ambiguous WADLs? (if ambi. WADLs are allowed then those are weak tools but, you'd want to be on the safe side) c) Just any experience with ambiguous REST apis, most especially wrt WADLs, really. For the curious, here's the latest spec: As far as I can tell it doesn't specifically address this, I guess it really comes down to how tools handle it. Thanks.

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  • setSearchDisplayController considered private-API?

    - by Adun
    Hi, I recently submitted an app for app review but I got rejected because of the use of a private API. I'm still a bit new to iPhone developing so I was wondering if someone could help me understand how this part was rejected: UISearchBar *searchBar = [[[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, self.tableView.frame.size.width, 0)] autorelease]; searchBar.showsCancelButton = NO; searchBar.placeholder = @"Search Exhibitors"; [searchBar sizeToFit]; [self.tableView setTableHeaderView:searchBar]; UISearchDisplayController *searchDisplayController = [[UISearchDisplayController alloc] initWithSearchBar:searchBar contentsController:self]; [self performSelector:@selector(setSearchDisplayController:) withObject:searchDisplayController]; [searchDisplayController setDelegate:self]; [searchDisplayController setSearchResultsDataSource:self]; [searchDisplayController setSearchResultsDelegate:self]; [searchDisplayController release]; The part that they mentioned was the "setSearchDisplayController". I based the searching of a UITableView on the example given here. So can anyone explain why this is considered a private API?

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  • Which Python API should be used with Mongo DB and Django

    - by Thomas
    I have been going back and forth over which Python API to use when interacting with Mongo. I did a quick survey of the landscape and identified three leading candidates. PyMongo MongoEngine Ming If you were designing a new content-heavy website using the django framework, what API would you choose and why? MongoEngine looks like it was built specifically with Django in mind. PyMongo appears to be a thin wrapper around Mongo. It has a lot of power, though loses a lot of the abstractions gained through using django as a framework. Ming represents an interesting middle ground between PyMongo and MongoEngine, though I haven't had the opportunity to take it for a test drive.

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  • Urllib's urlopen broken on some sites (StackApps api)

    - by Edan Maor
    I'm using urllib2's urlopen function to try and get a JSON result from the StackOverflow api. The code I'm using: >>> import urllib2 >>> conn = urllib2.urlopen("http://api.stackoverflow.com/0.8/users/") >>> conn.readline() The result I'm getting: '\x1f\x8b\x08\x00\x00\x00\x00\x00\x04\x00\xed\xbd\x07`\x1cI\x96%&/m\xca{\x7fJ\... I'm fairly new to urllib, but this doesn't seem like the result I should be getting. I've tried it in other places and I get what I expect (the same as visiting the address with a browser gives me: a JSON object). Using urlopen on other sites (e.g. "http://google.com") works fine, and gives me actual html. I've also tried using urllib and it gives the same result. I'm pretty stuck, not even knowing where to look to solve this problem. Any ideas?

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  • Effective file permissions tool's api in windows

    - by apoorv020
    Starting from Windows Server 2003, Windows included a new tool which calculates the effective permissions for a user (basically it resolves all groups access and takes care of all "deny" permissions as well). An example in point is that a user A belongs to groups B and C. B has been denied read permissions on a file F, while C has been allowed read and write permissions on the file and I want to calculate the effective permissions user A has on file F. This tool is available on Windows Server 2003,Vista,7 and Server 2008 by right clicking on a file and going to properties - security - advanced - effective permissions. What I need is an API in C# which does the same job. The most common FILE API returns access rules (class FileAccessRules), but there seems to be no direct way to calculate effective permissions from these set of access rules. Note: I do not want to process effective permissions in the code if at all possible, but am ready to do so as a last resort.

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