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• xml parsing takes extra spaces.

  - by SDK

  I have been trying to write/parse xml file in python. The tags are very simple <main> <data> abcdef </data> </main> I have written this xml using xml document writer from xml.dom.minidom. How-ever when i try to parse this and try to fetch data-text value, i get 'abcdef' with spaces/carriage return/newline characters in beg and end. Does parsing does not take of indenting spaces? Following is the parsing snippet (ref from net) dom = parseString(data) clipTag = dom.getElementsByTagName('clipdata')[0].toxml() clipData=clipTag.replace('<clipdata>','').replace('</clipdata>','') Kindly suggest.

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• Approaches to a week long camp programming course (tips & projects)

  - by Good Person

  I will be teaching a week long programming course to kids between the ages of 11-18. Most of the kids have no programming experience. I'm looking for two things 1) General tips for teaching a camp class (how to make it fun when explaining the difference between int and float) 2) Interesting projects that the kids will be able to complete by the end of the week. Unfortunately the language I'll be required to use is either c++ or Java which means that I'll need to spend more time on itty bitty details than I'd like in a week long course. I feel more competent in c++ than in Java. However if someone can show me that Java is much easier to learn I'll probably teach that instead. My initial idea is to try something like "a game a day" with games like hangman, tic-tac-toe, guess-a-number, wheel-of-fortune, etc. I'll try and update the question text as answers come in to offer more details While there are other questions about teaching programming around I'm looking for advice and tasks that are useful for specifically a week long camp

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• open database with initfile

  - by ml

  how to open a database local or remote with IniFile. something like the below. [code]vBanco : String; IniFileName : TIniFile; begin if FileExists (remote+'db\ado.mdb') IniFileName := TIniFile.Create(ExtractFilePath(ParamStr(0))+FileName); Try vBanco := Trim(IniFileName.ReadString('acesso','BancoRemto','')); Dirlocal := Trim(IniFileName.ReadString('acesso','PastasRemto','')); frmPrincipal.Edit1.text := Dirlocal; Dirtrabalho := (ExtractFilePath(Application.ExeName)); Conection.ConnectionString := vBanco; else ................................................ begin Try vBanco := Trim(IniFileName.ReadString('acesso','banco','')); Dirlocal := Trim(IniFileName.ReadString('acesso','PastasLocais','')); frmPrincipal.Edit1.text := Dirlocal; Dirtrabalho := (ExtractFilePath(Application.ExeName)); Finally end; end; end; IniFileName.Free;

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• dropdownlist format and then convert

  - by dinra

  i need a dropdownlist to show current month and year (January 2010) till January 2011, and an additional record of January 2011 +. But I want to save this in the database as 01/01/2010 format. also if the user selects current month then the record should be getdate() to go in database, else for any other month it should be 02/01/2010 (date = 01, first day of month). how do i do this in aspx.vb .net. i wrote a function to populate the dorpdownlist - Public Sub Load_dates(ByRef DDL As System.Web.UI.WebControls.DropDownList) Try Dim i As Integer Dim j As Integer For i = Now.Year To Now.Year For j = Now.Month To Now.Month + 11 DDL.Items.Add((j.ToString) + " " + (i.ToString)) Next Next Catch ex As Exception ReportError(ex) End Try End Sub this function only shows number like 01 2010 and 02 2010. how can i format this to show january 2010 and february 2010 and so on. please advice

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• I can host ASP.Net on http://localhost:<portname> but not on http://<computername>:<portname>.

  - by Hamish Grubijan

  I would like to correct that. I suspect that my question is a dupe. ASP.Net is currently at .Net version 4.0. I am running IIS 7.5 on Windows. I appreciate your help. EDIT: I am getting an error when I try to browse to the page. Sorry, I am not sure how to set this up. Oops! Google Chrome could not connect to HOST:1796 Suggestions: Try reloading: HOST: 1796 Search on Google:

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• Whether to check for null

  - by coffeeaddict

  I know that you should always check incoming params to a method for null. But what if I have this scenario with a try/catch referring to a local variable. Do I really need to check for null below? Because it's gonna catch it anyway if it's null and the next line of code tries to use the refundResponse variable: public string DoRefund(...) { try { ...... string refundTransactionID = string.Empty; ...... RefundTransactionResponseType refundResponse = transaction.DoRefund(...); if (refundResponse != null) refundTransactionID = refundResponse.RefundTransactionID; ..... } catch (Exception ex) { LogError(ex); return ex.ToString(); } }

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• While programming, what to do when facing with a seemingly unsolvable situation with a time limit?

  - by Ersan Tasan

  This is not a technical question, but rather a social and methodical one. I am a computer sciences student and I usually have really tough programming assignments. I don`t know if it is only happening to me but sometimes, particularly when deadline is approaching, i find myself in a harsh situation. I cannot find my mistake in the code or come up with a another great idea. Then boredom comes in and the problem begins to seem unsolvable. I know there are more-than-great professional coders here. I would like to learn their ideas to cope with this situation. Is it better to focus on something else for a while and try again or try harder and harder and look for the solution on the net etc...

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• flex accessing children of a list component

  - by pfunc

  when I try to loop through the children of a List component that has buttons in it, I can't seem to access those children. I try for(var btnNum:Number = 0; btnNum < myList.numChildren; btnNum++) { trace(myList.getChildAt(btnNum); } but it is giving some other instance, not the button instances. and the weeklist <mx:List id="myList" dataProvider="{_data.mappoints.week.@number}" > <mx:itemRenderer > <mx:Component> <mx:Button buttonMode="true" toggle="true" alpha="1" width="116" height="35" label="WEEK {data}" > </mx:Button> </mx:Component> </mx:itemRenderer> </mx:List>

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• Catch a generic exception in Java?

  - by Alex Baranosky

  We use JUnit 3 at work and there is no ExpectedException annotation. I wanted to add a utility to our code to wrap this: try { someCode(); fail("some error message"); } catch (SomeSpecificExceptionType ex) { } So I tried this: public static class ExpectedExceptionUtility { public static <T extends Exception> void checkForExpectedException(String message, ExpectedExceptionBlock<T> block) { try { block.exceptionThrowingCode(); fail(message); } catch (T ex) { } } } However, Java cannot use generic exception types in a catch block, I think. How can I do something like this, working around the Java limitation? Is there a way to check that the ex variable is of type T?

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• Ruby on Rails - can't access datetime model object

  - by NomadicRiley

  I've created a model that has 3 string columns and a datetime. Everything is running in SQLite3 and I can view the records in my table just fine using Lita. I'm trying to display the values in a page (index action) using code like this: <% @details.each do |lifeCycle| % <%= debug(lifeCycle)% <%= lifeCycle.lifeCycleId % <%= lifeCycle.eventType % <%= debug(lifeCycle.timeId) % <% end % From the debug I get a result like this: --- !ruby/object:LifeCycle attributes: eventType: Order created_at: "2111359287.23037" timeId: "2455364.89983796" eventId: "98765" updated_at: "2111359287.23037" lifeCycleId: "12345" id: "1" attributes_cache: {} But whenever I try to access the event timeId - i' getting a nil value. This is true if i try to run debug on just that field debug(lifeCycle.timeId), or call a function on it. Is there something obvious I'm missing here?

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• how to select all the data from many tables?

  - by Syom

  how to select all the data from many tables? i try `"SELECT * FROM `table1`, `table2`"` , but result none understandable for me. it returns only some rows from table1, and 3 times all the data from table2. i've red one same question here, but don't understand the answer. so could you help me? thanks in advance. update: when i try (SELECT * FROM `videos`) UNION (SELECT * FROM `users`) it returns #1222 - The used SELECT statements have a different number of columns

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• Why isn't this button firing the anchor tag?

  - by Noor

  My idea is to press a button that takes me to a web page. I've created a thing that dynamically creates a button and an anchor tag. When the button is clicked, I want it to "click"/fire up the anchor tag.. I've uploaded a demo to my site, when you try it out just leave everything as it is. Click the first button then the add button right away.. then try to click the dynamically created button. Nothing happens, but if you watch the source you can find an anchor tag with the ID FL1000, I've set it up so that the anchor tag gets the ID from the value of the created button + 1000 just incase I need to use that ID.. Thanks guys... edit: this is optimized for google chrome, haven't tried it out with other browser.

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• Android-SQLite: How to Count specific value from Column?

  - by sanpatil

  I have two table (TABLE_EXAM,TABLE_RESULT). Here is value of my TABLE_RESULT. result_id exam_id question_id correct_answer 1 2 4 y 2 2 5 y 3 2 6 n 4 2 7 y I need to count how many correct_answer='y' where exam_id=2. I try following code but it return 0. public int calculateResult(int examId,String confirmAnswer) { int correctAnswer=0; try { SQLiteDatabase db=this.getWritableDatabase(); String selectQuery=("select count(correctAnswer) from result where exam_id ='" + examId + "' and correctAnswer ='" + 'y' +"'" ); // String selectQuery=("SELECT COUNT(*)FROM result WHERE exam_id ='" + examId + "' and correctAnswer ='" + confirmAnswer +"'" ); Cursor cursor = db.rawQuery(selectQuery, null); if(cursor.moveToLast()) { correctAnswer=cursor.getInt(3); } } catch(Exception e) { e.printStackTrace(); } return correctAnswer; } In variable confirm_answer i pass "y". Give me some hint or reference. Any help is appreciated. Thanks in Advance

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• Why is the page shifting to top with a container that has overflow:hidden ?

  - by Maher4Ever

  I'm facing a problem that's really strange. It's in every browser. Everything is working correctly, until you try to go to a section using the hash ( like #contactUs in my page)... try this url : http://mahersalam.co.cc/projects/2011/#contactUs You will see that the page SHIFTS 10px to the top. if you take the hash, it works again. I have a wrapper on the page (#container) that has overflow:hidden, I did it to make sure no scroll bars appear if the resolution change. If you remove the overflow property it works too. I guess the shifting happens through the place of the scroll bar, but because it's hidden it's place only stays. So does anyone knows how to fix this problem ?

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• php, OOP dosent allow me to fetch multilingual content?

  - by user3138823

  i have written bellow class for my database connection. class dbConnection { protected $dbLink; public $db_host = "127.0.0.1"; public $db_user = "root"; public $db_pass = ""; public $db_name = "answer"; function connect() { try { $dbLink = new PDO('mysql:host='.$this->db_host.';dbname='.$this->db_name, $this->db_user, $this->db_pass); return $dbLink; } catch (PDOException $e) { return $e->getMessage(); } } } but in my databse i have multilingual content ( collection type = utf8_general_ci ). when i try to fetch data it returns ???? instead of real data. please can any one tell me how can i improve my class to work with multilingual contents. Thanks.

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• Django 0.0.0.0:80; can't access remotely

  - by user349555

  Hello, I'm trying to access my Django server from another computer on the same network. I've set up my server and can view everything correctly usingpython manage.py runserver and going to http://127.0.0.1:8000 but when I try to use python manage.py runserver 0.0.0.0:80, I can't view my Django page from another computer. The computer hosting the Django server has intranet IP 192.168.1.146. On my secondary computer, I fire up a browser and try to access http://192.168.1.146:80 to no avail. I've also forwarded port 80 (and I've tried 8000 as well) also to no avail :(. HELP!

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• Generic SQL builder .NET

  - by Patrick

  I'm looking for a way to write an SQL statement in C# targeting different providers. A typical example of SQL statements differentiating is the LIMIT in PostgreSQL vs. TOP in MSSQL. Is the only way to solve SQL-syntax like the two above to write if-statements depending on which provider the user selects or using try catch statements as flow control (LIMIT didn't work, I'll try TOP instead)? I've seen the LINQ Take method, but I'm wondering if one can do this without LINQ? In other words, does C# have some generic SQL Provider class that I have failed to find that can be used?

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• I having a problem with the mysqli free() member function

  - by neo skosana

  Hi I have code where I connected to the database like so: $db = new mysqli("localhost", "user", "pass", "company"); Now when I query the database like so: //query calls to a stored procedure 'user_info' $result = $db->query("CALL user_info('$instruc', 'c_register', '$eml', '$pass', '')"); //I use the $result This query works well. Now when I try and free that result like so: $result->free(); or $result->close(); It seems like it doesn't do anything because $result is still set. When I try to run another query it gives me this error: Fatal error: Call to a member function fetch_array() on a non-object in... For me to run this other query I have to close the db conection and connect again, then it will work. I want to know if there is a way I could run the other query without having to disconnect and reconnect to the database. thanks in advance.

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• Where and why JVM checks that the return type of entry method main(String args[]) is void and not an

  - by akjain

  I will try to answer both, please correct me if I am wrong: Where: If a static method is being called using Classname.method() or using reflection then it doesn’t matter even if you change the return type of the calling method, the same method will still be called. So JVM probably checks this in one of the native methods of jvm.cpp methodHandle m (THREAD, init_klass-find_method(vmSymbols::object_initializer_name(), vmSymbols::void_method_signature())); if (m.is_null()) { ------ THROW_MSG_0 ……….. Why: Although it’s of useless to return a value from main, as java does not do anything with it but if we try to change the return type of main to int for example, JVM throws public static int main(String[] args) { return 1; } java.lang.NoSuchMethodError: main Exception in thread "main" So may be Java mandates the use of same signature for entry method main() to maintain a symmetry in all Java programs written.

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• How to add a multiline title bar in UINavigationController

  - by Cocoa Matters

  I have try to add a two line title bar in UINavigationController I want to adjust font size automatically set according to string length.My String max size goes to 60. I have try to implemented through following code UILabel *bigLabel = [[UILabel alloc] init]; bigLabel.text = @"1234567890 1234567890 1234567890 1234567890 1234567890 123456"; bigLabel.backgroundColor = [UIColor clearColor]; bigLabel.textColor = [UIColor whiteColor]; bigLabel.font = [UIFont boldSystemFontOfSize:20]; bigLabel.adjustsFontSizeToFitWidth = YES; bigLabel.clipsToBounds = NO; bigLabel.numberOfLines = 2; bigLabel.textAlignment = ([self.title length] < 10 ? NSTextAlignmentCenter : NSTextAlignmentLeft); [bigLabel sizeToFit]; self.navigationItem.titleView = bigLabel; It didn't work for me can you help me please. I have to made this for iPhone and iPad screen

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• Permission denied after image upload

  - by moustafa

  I've got a image upload script that works on my Apache on IIS development server, but on the Apache Lunix live server, although the images are uploaded correctly and the MySQL database is updated correctly, I can't view the images. Viewing the HTML source, checking both the FTP files and the database values, all look OK. But the image doesn't show, just the white box with the red cross in the corner. If I try to copy the shortcut of the image and open it in a seperate window, I get the following: I'm not sure what to try next, it seems strange that the files/database/source look good but it just won't show! I've tried both $HTTP_POST_FILES and $_FILES to upload the images, but both have the same result. If anyone has any ideas, please help!

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• I have a tab delimeted file that I want to convert into a mysql table

  - by user320835

  I have a tab delimeted file that I want to convert into a mysql table. there are 25 tab delimeted fields in the text file. I can get the values in when I construct the SQL statement word by word and get each value individually stated in the VALUES part but when I try to get the list as a whole it does not work. Here is the code. I couldn't figure it out. Any ideas? lines=open(path, "r").readlines() for line in lines[1:]: linex=line.strip().split("\t") linex.insert(0,'sometextindex') try: cursor.execute('INSERT INTO variants VALUES(%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)',linex) except: print 'line number=',a,linex

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• elinks http autentication

  - by G45

  I'm trying to use linux elinks text browser to go to a website. This site requires http authentication. If I press escape it and hide the login prompt once and then If I try to go the particular website again it doesn't show the login prompt again. I try "flush all caches" But it doesn't work until I close my terminal and get a new one. Is there any other way to get over with this? This should be a simple question. But I googled and couldn't find a answer.

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• Can i do this in javascript ?(ASP.NET MVC)

  - by user1710716

  <script type="text/javascript"> function CheckData(e) { var form = e.form; var dataItem = e.dataItem; var r = <%=Session["count"] %>; var s = []; var t = []; for (i=1;i<r;i++) { s.push(<%=Session["level"+i] %>; } for(i=1;i<r;i++) { t.push(<%=Session["level"+i+"val"] %> } if(e.mode="edit") { } } </script> I try to combind session in to variable in JavaScript but my session has dynamic session this code get error when I try to build.

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• any other way to find char array length?

  - by user2785137

  public static int getLenth(char[] t) { int i=0; int count=0; try { while(t[i]!='\0') { ++count; i++; } return count; } catch(ArrayIndexOutOfBoundsException aiobe) { return count; } } This method returns length of charArray. But my question is, is there is some other "ways" to find the length of charArray without using this try, catch statements & all ?? Thanks in advance :)

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