problem solving - Page 232

CascadeType problem in One to Many Relation

- by Milad.KH

Hi I have two classes which have a Unidirectional One to Many relation with each other. public class Offer{ ... @OneToMany(cascade=CascadeType.ALL) @JoinTable(name = "Offer_Fields", joinColumns = @JoinColumn(name = "OFFER_ID"), inverseJoinColumns = @JoinColumn(name = "FIELDMAPPER_ID")) private Set<FieldMapper> fields = new HashSet<FieldMapper>(); } public class FieldMapper{ ... } I want to store an Offer with a set of FieldMapper to database. When I Use CascadeType.ALL in my OneToMany, I got this error: org.hibernate.HibernateException: Illegal attempt to associate a collection with two open sessions and when I change CascadeType to something else I got this error: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: com.RCSTT.library.FieldMapper Thanks for your help.

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Tokenize problem in Java with separator ". "

- by user112976

I need to split a text using the separator ". ". For example I want this string : Washington is the U.S Capital. Barack is living there. To be cut into two parts: Washington is the U.S Capital. Barack is living there. Here is my code : // Initialize the tokenizer StringTokenizer tokenizer = new StringTokenizer("Washington is the U.S Capital. Barack is living there.", ". "); while (tokenizer.hasMoreTokens()) { System.out.println(tokenizer.nextToken()); } And the output is unfortunately : Washington is the U S Capital Barack is living there Can someone explain what's going on?

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Problem with Mergesort in C++

- by cambr

vector<int>& mergesort(vector<int> &a) { if (a.size() == 1) return a; int middle = a.size() / 2; vector<int>::const_iterator first = a.begin(); vector<int>::const_iterator mid = a.begin() + (middle - 1); vector<int>::const_iterator last = a.end(); vector<int> ll(first, mid); vector<int> rr(mid, last); vector<int> l = mergesort(ll); vector<int> r = mergesort(rr); vector<int> result; result.reserve(a.size()); int dp = 0, lp = 0, rp = 0; while (dp < a.size()) { if (lp == l.size()) { result[dp] = (r[rp]); rp++; } else if (rp == r.size()) { result[dp] = (l[lp]); lp++; } else if (l[lp] < r[rp]) { result[dp] = (l[lp]); lp++; } else { result[dp] = (r[rp]); rp++; } dp++; } a = result; return a; } It compiles correctly but while execution, I am getting: This application has requested the runtime to end it in an unusual way. This is a weird error. Is there something that is fundamentally wrong with the code?

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Java - SwingWorker - problem

- by Yatendra Goel

I am developing a Java Desktop Application. This app executes the same task public class MyTask implements Callable<MyObject> { in multiple thread simultaneously. Now, when a user clicks on a "start" button, I have created a SwingWorker myWorker and have executed it. Now, this myWorker creates multiple instances of MyTask and submits them to an ExecutorService. Each MyTask instance has a loop and generates an intermediate result at every iteration. Now, I want to collect these intermediate results from each MyTask instances as soon as they are generated. Then after collecting these intermediate results from every MyTask instance, I want to publish it through SwingWorker.publish(MyObject) so that the progress is shown on the EDT. Q1. How can I implement this? Should I make MyTask subclass of SwingWorker instead of Callable to get intermediate results also, because I think that Callable only returns final result. Q2. If the answer of Q1. is yes, then can you give me a small example to show how can I get those intermediate results and aggregate them and then publish them from main SwingWorker? Q3. If I can't use SwingWorker in this situation, then how can I implement this?

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UIView, UIScrollView and UITextFields problem calling Method

- by Jeff Groby

I have a view with several embedded UITextFields, this UIView is subordinated to a UIScrollView in IB. Each text field is supposed to invoke a method called updateText defined in the viewcontroller implementation file when the user is done editing the field. For some reason, the method updateText never gets invoked. Anyone have any ideas how to go about fixing this? The method fired off just fine when the UIScrollView was not present in the project but the keyboard would cover the text fields during input, which was annoying. Now my textfields move up above the keyboard when it appears, but won't fire off the method when done editing. Here is my implementation file: #import "MileMarkerViewController.h" @implementation MileMarkerViewController @synthesize scrollView,milemarkerLogDate,milemarkerDesc,milemarkerOdobeg,milemarkerOdoend,milemarkerBusiness,milemarkerPersonal,milemarker; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) { // Initialization code } return self; } - (BOOL) textFieldShouldReturn: (UITextField*) theTextField { return [theTextField resignFirstResponder]; } - (void)viewDidLoad { [super viewDidLoad]; [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(keyboardWasShown:) name: UIKeyboardDidShowNotification object: nil]; [[NSNotificationCenter defaultCenter] addObserver: self selector: @selector(keyboardWasHidden:) name: UIKeyboardDidHideNotification object: nil]; keyboardShown = NO; // 1 [scrollView setContentSize: CGSizeMake( 320, 480)]; // 2 } - (void)keyboardWasShown:(NSNotification*)aNotification { if (keyboardShown) return; NSDictionary* info = [aNotification userInfo]; // Get the size of the keyboard. NSValue* aValue = [info objectForKey:UIKeyboardBoundsUserInfoKey]; CGSize keyboardSize = [aValue CGRectValue].size; // Resize the scroll view (which is the root view of the window) CGRect viewFrame = [scrollView frame]; viewFrame.size.height -= keyboardSize.height; scrollView.frame = viewFrame; // Scroll the active text field into view. CGRect textFieldRect = [activeField frame]; [scrollView scrollRectToVisible:textFieldRect animated:YES]; keyboardShown = YES; } - (void)keyboardWasHidden:(NSNotification*)aNotification { NSDictionary* info = [aNotification userInfo]; // Get the size of the keyboard. NSValue* aValue = [info objectForKey:UIKeyboardBoundsUserInfoKey]; CGSize keyboardSize = [aValue CGRectValue].size; // Reset the height of the scroll view to its original value CGRect viewFrame = [scrollView frame]; viewFrame.size.height += keyboardSize.height; [scrollView scrollRectToVisible:CGRectMake(0, 0, 1, 1) animated:YES]; scrollView.frame = viewFrame; keyboardShown = NO; } - (void)textFieldDidBeginEditing:(UITextField *)textField { activeField = textField; } - (void)textFieldDidEndEditing:(UITextField *)textField { activeField = nil; } - (IBAction)updateText:(id) sender { NSLog(@"You just entered: %@",self.milemarkerLogDate.text); self.milemarker.logdate = self.milemarkerLogDate.text; self.milemarker.desc = self.milemarkerDesc.text; self.milemarker.odobeg = self.milemarkerOdobeg.text; self.milemarker.odoend = self.milemarkerOdoend.text; self.milemarker.business = self.milemarkerBusiness.text; self.milemarker.personal = self.milemarkerPersonal.text; NSLog(@"Original textfield is set to: %@",self.milemarker.logdate); [self.milemarker updateText]; } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } - (void)dealloc { [super dealloc]; } @end

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Problem in implementing progress control using threading!

- by Rakesh

hello all, I am new to the concept of threading in C..so I find it difficult to implement that in my function...I have a simple application in which i want to display a progress bar at a particular place..In a particular funtion I will read files(in a for loop) for some manipulations(regarding my application) ...while its reading the files I want to display a progress bar...stating that its in process of reading files...I know it should be done using the concept of threading...but i am not quite sure how to do it..please help me with this

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php curl image problem

- by i_dont_wanna_die

$ch = curl_init(); // set URL and other appropriate options curl_setopt($ch, CURLOPT_URL, "https://www.hushmail.com/signup/turingimage?hush_domain=hushmail.com"); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // grab URL and pass it to the browser curl_exec($ch); // close cURL resource, and free up system resources curl_close($ch); result: ÿØÿàJFIFÿs>CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), default quality ÿÛC $.' ",#(7),01444'9=82<.342ÿÛC 2!!22222222222222222222222222222222222222222222222222ÿÀ<?¯"ÿÄ ÿÄµ}!1AQa"q2‘¡#B±ÁRÑg$3br‚ %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyzƒ„…†‡ˆ‰Š’“”•–—˜™š¢£¤¥¦§¨©ª²³´µ¶·¸¹ºÂÃÄÅÆÇÈÉÊÒÓÔÕÖ×ØÙÚáâãäåæçèéêñòóôõö÷øùúÿÄ ÿÄµw!1AQaq"2B‘¡±Á #3RgbrÑ $4á%ñ&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz‚ƒ„…†‡ˆ‰Š’“”•–—˜™š¢£¤¥¦§¨©ª²³´µ¶·¸¹ºÂÃÄÅÆÇÈÉÊÒÓÔÕÖ×ØÙÚâãäåæçèéêòóôõö÷øùúÿÚ?ó I ”sôÊ1±Q2Ôö©£¥^:^Zûòä##ƒZvzÅœ7/¤[Ëƒ%À|¯jé¼)&9Öuí^ØIGGœIíÒ»Û±îÎ¤¢›µ×âqÚwI~$Òi©G§8#V¯†.,väñÒŸ™&—ˆ¼/{áû¨í¦+3É”y@œYúoö?Ù.ÿ´¾Óö¿èsV1»iªS‡Ä/«Ïuu¬êÑZ”·hÀe®J8¥¹˜$hÒHÇ€£$×^áw6¥±fÛPû>Ÿuiöh_íiã®Y1iÓÚ¥¶Ñnµˆ ÓÇÚÀ'Ëä>†»/ |/»¾ sª±·€ò#xÿ…v·š¿‡< mö[h”Ücˆ£v>ôªb’|´ÕØÜÕíÈµŸj^–IõÇ ‚Aö¤×JêR.«mh–GNSZ@ŠkÙ+g)¹–Ùã˜Çæ"ù•…xm¬ZŒ·QÙÛ$Í:1)Cwâª…WQ^[ „¹µf¿„t}/SÔ® Ö®M¤i u%¶’I‡5¢Ç^g±²–ú;GÒÚ ç&ã' ¬Mzè}ªX6fBÌiÎ®"·>øãÄÚ’\ÜFWM‰‘ñû œEùy™WKSlcà©u2çT¶8¢]„®È{^k›K¿›Ïòí&o³ÿ®ÂŸ“ëé_Iêé¦7‡î,ZS¥[[J©¸cI¯Öem]½}#PyìŒ¡_|œÊzÃ¸÷®Dî:Ue;œ©ƒïVWîŠ~¡u åÈ¹TÚò|Ò¨àSØ«rXºGö8%‹æSùÍiÓÂ?yƒµ–°ú…§†ÃYißeónA’åzb§gŸ5æ‡u¥ÊƒdØ–9äÁ®NÒåÿ„bóVµÔ„RÆ|¹mÁÃ2ÿJÒøs8‹WºÜâÙŠŒg®(kGcKZ2å{}çe¢k:J\êv¨ÑÙÜ ¹ `â¹'IšÛên’ÚGyZLp¸=3X¾Ò¡×üEqÜ®#ù™O'šé¦ÕÁ©i§Û*Í¦]ìï÷ˆ<íSk;!rr{±ÜËoêÚF©r–¡·³(e½t>ñTú¬:…½ÍÜ0j’gÌä•P{Jç5bïR¹·µ!qÎ9œ{ñ[º«ƒá3SÒ4Û2“¦GL•oÿ]å¶‡>)ÓP¼V¤:e¶¥àÍFY5q ÓõÁî°X¡÷¬MÃöWZa×´&-i¸‰¡=c?á^—%Ä1øi,’F¡ÄE‚¯g¸ô¯<øyçK>©c'6lsnãò©ìjêyvÖÌáëÙ¾èÔ|7—1Å-G8˜ÈzGW”ÛÇ`z.™²ŠD‰³^ÍàßiqøVÚîyfçQ$„I´g¶~•y%YŒö.Má d†EµGSµÔÉÈ>•. x?L¸ó´‘mç·Ê0ááUæø}á+»‡•î‹Hç,|sI©-sxf×R†òSåÑ¢`Ê¢pFkÊ<®òbMwbxªËZ¿´‚ßG¸[rìD®{-AkáK–-GX¸…ï …if‹(’":GÕÓBŒ¥.h«Gó.1oU±sKÒá×ü_5ö±‹+'ÌèiÁ=+×ïm´[ÃQÙhšÔVÑ0¡`9ì+Ât¿^ivz…²ÇÂõv»J2WééTô5–mnÎI±$Ê6ƒÁæ·ÄAÚì·MÉï±ï7ºXønÛJÔn¾×ö‰H–âC‚F:ikÇZßÃ£Ä“i°™'³šdHïgcù½zWÆ{™ gå„ J–“’=+Ä$ˆcd‘Ì§ï‚¸è{×*-Æ÷ÜÑñ.š^¿ue8›Cg#±ÍS_º*ÿ†,luoÛZê—FYLôôæ´µ1|/®Ë¶Ñ\Û¶L;Ÿ §c‘ZAêzXI%'¶2£ºŠãÆÛo–Aé]¯€.l&¼Õ µXîZÜù!y 1È¬K <^ ·ñs™I6g¤iZ4¨.ô{UHíe'2;`cÔ¥QÔ‡ü#^¸Ó¬$ûEÄ‹Ë”û«sÈ5‘«Iê«nV]bIcU_I—Á9ö¬XXIsmÓ¡r¦Ik;3}ˆa†K‰’QG8UI¯¥tI2ïZéWNÑ·UuVÃ-|î–ú–=¥ñ·’,uáµ_¸ñGˆ ÖÚú{§[Ì`ç§#**Óu-fg%sÕÏÂ}nÔÕn×sÚÔ'á¨9‡\¼_ûi^;&¹ª6æ7÷<ÿ¬5oEñ.ªšÅ¯ªN"ßón“ŒUÒ¡YÅ¸Ì¨FvÑ…¨Èÿ5[H#‘¯â¹BnÌ„•WPø›q—+ù2^«$q¤Ÿ¼‡Sú×›I_^ê±–K©deí’vŒõ«&Ñít{è¢µÔ’ùdŒHÒ'b{W\0ÑMsêÍT—,k~(oÌ÷:œ 'HP˜úSQIÜi÷S²··!»³ViI€\=ê=7Ã·w7¶gÜÚ\"Ü¡0‡ç8ãÔx‡Âš¯†îwÖì#ÄÀ„‘œ[®DùS/IÙw }Ö«!ˆ(ÜXt=é¶·sXSGunÛfˆîFô5¹‰ ƒÃwºRé±+Ü…e<ñëYi—wV77°ÄZSÛkÿw=+,Eù5îi®¦¦¥â={ÅòÚÙ]În_~Ø—äÖ5ÕœöW’ZÏIãm¬Á¨â•á•e‰Ê:œ«)Á»]{H} ÇCñ\µíÍÆ%™¤Ã(n Wm¨4‘CÃÓµ#RºÔ.šShWªN<Çôæ™š–ºêÙxŠY!EL»ÉdUOøµCíF°Ç¸Iå ÀG$~5v$—ÄísyutÍ~¡F©ã§áW|75Û“²€]^ëF’Ú,“§Ø®?y±0?fÛ\,0H%´Y‘¸ÙùO·½U$$ã¥jÿhKÿÇØ6ÇåysfvüÙÇi±è5Ê¶I”VH€œ.UXaAijÜ:z^YÂÑIK‡Ü¤ó…ç&³+Röf‹K²……t.Hç>´2¥~…kTCÈ–ía‰eßœfªàoÛ¸c8Í%hÃmhW%s*Jªè )lqãÿ‚ÉSGµ«I'hï6ÊÊ:éÍhêS=íôÒè‘ƒ:%c“#jåÉ$ä’~´•èµ^òâÍ,u’\Á@ù3ßŠ¥Ii×MhÖº2ÂrùË?sT.n¥»I3n`¡AÆ8 *XaA$ô´¤²‡HµÒõ%š;‹‰´–¿s€ÃS¦ÑG[ÆºŠÏê7+øÆ ñ§6¥â9/fH–RÊqáxö®œ;½Ñ>ÂÚk÷:f¡{r¶P©¼B&AôrîÇHÔ[LšÔËj.¤òî$“»íö?‰¯æêL¥ZKÙ¶Œâ¸¶º™íÔ·î‘‹*ú[ÇSJKBÖªèÓÔ5=BÇS0AªÍ2Ù± Uú/N*i|E¬ø†]ûQßoæ 1áO©>•E_*+•Kág|D4–Ôïs¿÷}3Ö¬ÙÂ`mkIMb(De‰ê. ô²,í£ÚòGÎè£Ü¸=óB4V2 nó‘Ô×>&ü«QÇ{n4KkMÇQšó&í_lh • ÷æ¨¶«zÚPÓZv6‚O0F½Zs5³‡K×_N´R–Ñ*²©9Á#šÍÖí"³½Há\)…iHæ¸bî•ÊDñ0Y© C]—º:øfÚ+X&V ûÙ 2úUÊ=Y¯Zéäc«H„ëGj4ËHî¢˜É»äPF©Å\N¬5›wèÿÙ however, if i go to https://www.hushmail.com/signup/turingimage?hush_domain=hushmail.com via browser that's okay. it works, it shows the image. why doesn't php curl work? i just want to learn the reason...

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use Blat to send mail in local network problem

- by issac

i trying to use Blat to send mail in local mail server but the error message keep return saying that the smtp server does not like the sender name. i have keep trying different sender name but still cannot, anybody know how to fix it? Pls help..

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Have problem understanding the id/name of java bean

- by symfony

In an XmlBeanFactory (including ApplicationContext variants), you use the id or name attributes to specify the bean id(s), and at least one id must be specified in one or both of these attributes. Does it mean the following are legal? <bean id="test"> <bean name="test"> But this is illegal: <bean non_idnorname="test"> you may also or instead specify one or more bean ids (separated by a comma (,) or semicolon (;) via the name attribute. Does it mean I can specify multiple ids this way: <bean name="id1;id2,id3"> Can someone convince my doubt?

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Java problem cant find image file

- by user363035

I am a student working on a homework project. I spent DAYS trying to get the following code to display an image on my new windows 7 laptop. I compiled it and ran it on my old xp pc and it worked! I really want to use my laptop. Any suggestions on how to get it to display the image? import java.awt.*; import java.applet.*; import java.awt.event.*; import java.awt.image.*; public class MoveIt extends Applet implements ActionListener { // set variables and componets private Image cup; Panel keypad = new Panel(); public int top = 15; public int left = 15; private Button keysArray[]; public void init() { cup = getImage(getDocumentBase(), "cup.gif"); Canvas myCanvas = new Canvas(); keysArray = new Button[5]; setLayout(new BorderLayout(5,5)); setBackground(Color.blue); // set up keypad layout keypad.setLayout(new BorderLayout(0,0)); keysArray[0] = new Button("Up"); keysArray[1] = new Button("Left"); keysArray[2] = new Button("Center"); keysArray[3] = new Button("Right"); keysArray[4] = new Button("Down"); // add buttons to the keypad panel keypad.add(keysArray[0], BorderLayout.NORTH); keysArray[0].addActionListener(this); keypad.add(keysArray[1], BorderLayout.EAST); keysArray[1].addActionListener(this); keypad.add(keysArray[2], BorderLayout.CENTER); keysArray[2].addActionListener(this); keypad.add(keysArray[3], BorderLayout.WEST); keysArray[3].addActionListener(this); keypad.add(keysArray[4], BorderLayout.SOUTH); keysArray[4].addActionListener(this); // add canvas and keypad to the BorderLayout add(myCanvas, BorderLayout.NORTH); add(keypad, BorderLayout.SOUTH); } public void paint(Graphics g) { g.drawImage( cup, left, top, this ); } public void actionPerformed(ActionEvent e) { // test for menu item clicks String arg = e.getActionCommand(); if (arg == "Up") top -=15; else if (arg == "Down") top +=15; else if (arg == "Left") left -=15; else if (arg == "Right") left +=15; else { top = 60; left =125; } repaint(); } }

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Problem with migrating a model in ruby

- by Shreyas Satish

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CVS to Mercurial conversion: end of line problem

- by mizipzor

I recently converted a CVS repository to Mercurial. From the looks of it, everything went perfect. Except that every end-of-line character is in Unix style and I want them in Windows style. I know the hg convert command can be used to "convert" a Mercurial repository to a Mercurial repository. Can I use it to do nothing on the repos but fix the line endings?

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iphone Odd Problem when using a custom cell

- by Brodie4598

Please note where I have the NSLOG. All it is displaying in the log is the first three items in the nameSection. After some testing, I discovered it is displaying how many keys there are because if I add a key to the plist, it will log a fourth item in log. nameSection should be an array of the strings that make up the key array in the plist file. the plist file has 3 dictionaries, each with several arrays of strings. The code picks the dictionary I am working with correctly, then should use the array names as sections in the table and the strings en each array as what to display in each cell. so if the dictionary i am working with has 3 arrays, NSLOG will display 3 strings from the first array: 2010-05-01 17:03:26.957 Checklists[63926:207] string0 2010-05-01 17:03:26.960 Checklists[63926:207] string1 2010-05-01 17:03:26.962 Checklists[63926:207] string2 then stop with: 2010-05-01 17:03:26.963 Checklists[63926:207] * Terminating app due to uncaught exception 'NSRangeException', reason: '* -[NSCFArray objectAtIndex:]: index (3) beyond bounds (3)' if i added an array to the dictionary, it log 4 items instead of 3. I hope this explanation makes sense... -(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{ return [keys count]; } -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger) section { NSString *key = [keys objectAtIndex:section]; NSArray *nameSection = [names objectForKey:key]; return [nameSection count]; } -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { NSUInteger section = [indexPath section]; NSString *key = [keys objectAtIndex: section]; NSArray *nameSection = [names objectForKey:key]; static NSString *SectionsTableIdentifier = @"SectionsTableIdentifier"; static NSString *ChecklistCellIdentifier = @"ChecklistCellIdentifier "; ChecklistCell *cell = (ChecklistCell *)[tableView dequeueReusableCellWithIdentifier: SectionsTableIdentifier]; if (cell == nil) { NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"ChecklistCell" owner:self options:nil]; for (id oneObject in nib) if ([oneObject isKindOfClass:[ChecklistCell class]]) cell = (ChecklistCell *)oneObject; } NSUInteger row = [indexPath row]; NSDictionary *rowData = [self.keys objectAtIndex:row]; NSString *tempString = [[NSString alloc]initWithFormat:@"%@",[nameSection objectAtIndex:row]]; NSLog(@"%@",tempString); cell.colorLabel.text = [tempArray objectAtIndex:0]; cell.nameLabel.text = [tempArray objectAtIndex:1]; return cell; return cell; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath]; if (cell.accessoryType == UITableViewCellAccessoryNone) { cell.accessoryType = UITableViewCellAccessoryCheckmark; } else if (cell.accessoryType == UITableViewCellAccessoryCheckmark) { cell.accessoryType = UITableViewCellAccessoryNone; } [tableView deselectRowAtIndexPath:indexPath animated:NO]; } -(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{ NSString *key = [keys objectAtIndex:section]; return key; }

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Qt - problem appending to QList of QList

- by bullettime

I'm trying to append items to a QList at runtime, but I'm running on a error message. Basically what I'm trying to do is to make a QList of QLists and add a few customClass objects to each of the inner lists. Here's my code: widget.h: class Widget : public QWidget { Q_OBJECT public: Widget(QWidget *parent = 0); ~Widget(); public slots: static QList<QList<customClass> > testlist(){ QList<QList<customClass> > mylist; for(int w=0 ; w<5 ; w++){ mylist.append(QList<customClass>()); } for(int z=0 ; z<mylist.size() ; z++){ for(int x=0 ; x<10 ; x++){ customClass co = customClass(); mylist.at(z).append(co); } } return mylist; } }; customclass.h: class customClass { public: customClass(){ this->varInt = 1; this->varQString = "hello world"; } int varInt; QString varQString; }; main.cpp: int main(int argc, char *argv[]) { QApplication a(argc, argv); Widget w; QList<QList<customClass> > list; list = w.testlist(); w.show(); return a.exec(); } But when I try to run the application, it gives off this error: error: passing `const QList<customClass>' as `this' argument of `void List<T>::append(const T&) [with T = customClass]' discards qualifiers I also tried inserting the objects using foreach: foreach(QList<customClass> list, mylist){ for(int x=0 ; x<10 ; x++){ list.append(customClass()); } } The error was gone, but the customClass objects weren't appended, I could verify that by using a debugging loop in main that showed the inner QLists sizes as zero. What am I doing wrong?

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StackOverflow Site Layout Problem in Chrome

- by Laramie

I was cleaning up one of my questions here and noticed that Stack Overflow's comments were overflowing into the right column in Chrome. The question is, what's the difference in CSS handling between Chrome and Firefox. I don't have access to Safari, Opera, et al. Can someone tell me in which browsers the error manifests? Is it just me? Here's the layout error: (my apologies to Tim Down for covering up his name with my comment bubble) Since I have no natural skill for good layouts and the whole process makes me sad, I wonder if someone can diagnose the error on StackOverflow and make a recommendation on how to avoid it. Is this a consequence of embedding a div inside a td? Plus I admit it. It's fun to point out an error on one of the greatest sites ever.

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Problem with building with csc task in Ant

- by Wing C. Chen

I have an ant build target using csc: <target name="compile"> <echo>Starting compiling ServiceLauncher</echo> <csc optimize="true" debug="true" warnLevel="1" unsafe="false" targetType="exe" failonerror="true" incremental="false" mainClass = "ServiceLauncher.Launcher" srcdir="ServiceLauncher/Launcher/" outputfile="ServiceLauncher.exe" > <reference file="libs/log4net.dll"/> <define name="RELEASE"/> </csc> </target> When I run it, the following exception comes up: csc failed: java.io.IOException: Cannot run program "csc": CreateProcess error=2, The system cannot find the file specified However, it runs without the exception but never correctly builds the .exe file, when I manually add in an empty ServiceLauncher.exe. How can I correctly build this .Net project "ServiceLauncher"?

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URL Rewrite in htaccess problem

- by davykiash

Am rather new to this world of htaccess redirects.Am trying to force all redirects in my Zend MVC to my https but I get a requested URL not found error on requests that dont go though the index controller Example https://www.example.com/auth/register gives a requested URL /auth/register not found error. However if I remove the https redirect rule it works fine over http. If I adjust the URL to https://www.example.com/index.php/auth/register it works fine. The URL https://www.example.com/index/faq works just fine since it goes through the index controller. My .htaccess file looks like this RewriteEngine On RewriteCond %{HTTPS} off RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [L] RewriteCond %{REQUEST_FILENAME} -s [OR] RewriteCond %{REQUEST_FILENAME} -l [OR] RewriteCond %{REQUEST_FILENAME} -d RewriteRule ^.*$ - [NC,L] RewriteRule ^.*$ index.php [NC,L] <ifModule mod_gzip.c> mod_gzip_on Yes mod_gzip_dechunk Yes mod_gzip_item_include file \.(html?|txt|css|js|php|pl)$ mod_gzip_item_include handler ^cgi-script$ mod_gzip_item_include mime ^text/.* mod_gzip_item_include mime ^application/x-javascript.* mod_gzip_item_exclude mime ^image/.* mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.* </ifModule> What do I need to adjust to get the URL https://www.example.com/auth/register working?

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Problem streaming video on iPhone, only audio is playing

- by Sheehan Alam

I am trying to stream a video using MPMoviePlayerController but only audio is working. How can I get the video to appear? - (void)loadView { NSString *url = @"http://d1xt8xjto3lfs9.cloudfront.net/060810/afternoonupdate060810.mov"; MPMoviePlayerController *moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:[NSURL URLWithString:url]]; [moviePlayer play]; }

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Attachment_fu file saving problem

- by Anand

Attachment_fu plugin is kind of old, but I have to modify an old app and I can't use another plugin like paperclip etc. So here's the code without further ado Submissions table structure --------------------------- | content_type | varchar(255) | YES | | NULL | filename | varchar(255) | YES | | NULL app/models/submission.rb ------------------------ has_attachment :storage => :file_system, :path_prefix => 'public/submissions', :max_size => 2.megabytes, :content_type => ['application/pdf', 'application/msword', 'text/plain'] app/models/user.rb ------------------ has_one :submission, :dependent => :destroy app/views/user/some_action.html.erb ----------------------------------- <% form_for :user, :url => { :action => "some_action" }, :html => {:multipart => true} do |f| %> .... <%= file_field_tag "submission[uploaded_data]" %> <%end%> app/controllers/user_controller.rb ---------------------------------- @user = User.find_user(session[:user_id]) @submission = @user.submission if request.post? @submission.uploaded_data = params[:submission][:uploaded_data] end When the form is submitted, the database fields "content_type" and "filename" get updated and display the correct values, but the file does not appear in public/submissions/ directory. I have checked the permissions on the submissions directory. What am I missing? Many Thanks

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Problem with DSL and Business Rules creation in Drools

- by jillika iyer

Hi, I am using Eclipse with the Drools plugin to create rules. I want to create business rules and main aim is to try and provide the user a set of options which he can use to create rules. For eg:If an Apple can have only 3 colors: I want to provide an option like a drop down so that the user can know before hand which are the options he can use in his rules. Is it possible? I am creating a dsl but unable to still provide the above functionality for a business rule. I am having an error implementing a basic dsl also. The code to add the dsl is as follows in my RuleRunner class() InputStream ruleSource = RuleRunner.class.getClassLoader().getResourceAsStream("/Rule1.dslr"); InputStream dslSource = RuleRunner.class.getClassLoader().getResourceAsStream("/sample-dsl.dsl"); //Load the rules , using DSL addRulesToThisPackage.addPackageFromDrl( new InputStreamReader(ruleSource),new InputStreamReader(dslSource)); I have both the sample-dsl .dsl and Rule1.dslr in my working directory. Error encountered at adding the dsl to the package (last line) Error stack: Exception in thread "main" java.lang.NullPointerException at java.io.Reader.<init>(Unknown Source) at java.io.InputStreamReader.<init>(Unknown Source) at com.org.RuleRunner.loadRuleFile(RuleRunner.java:96) at com.org.RuleRunner.loadRules(RuleRunner.java:48) at com.org.RuleRunner.runStatelessRules(RuleRunner.java:109) at com.org.RulesTest.main(RulesTest.java:41) my dsl file has basic mapping as per the online documentations. The dsl rule I created is: expander sample-dsl.dsl rule "A status changes B status" when There is an A - has an address There is a B - has name then - print updated A and Aaddress End I have created DSL in eclipse. Is the code I added for it to be loaded to my package correct?? Or am I missing something???? It seems like my program is unable to find the dsl? Please help. Can you point me towards the right direction to create a user friendly business rule ?? Thanks. J

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Java MySQL Query Problem MySQLSyntaxErrorException When Creating a Table

- by Aqib Mushtaq

I fairly new to MySQL with Java, but I have executed a few successful INSERT queries however cannot seem to get the CREATE TABLE query to execute without getting the 'MySQLSyntaxErrorException' exception. My code is as follows: import java.sql.*; Statement stmt; Class.forName("com.mysql.jdbc.Driver"); String url = "jdbc:mysql://localhost:3306/mysql"; Connection con = DriverManager.getConnection(url, "root", "password"); stmt = con.createStatement(); String tblSQL = "CREATE TABLE IF NOT EXISTS \'dev\'.\'testTable\' (\n" + " \'id\' int(11) NOT NULL AUTO_INCREMENT,\n" + " \'date\' smallint(6) NOT NULL\n" + ") ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;"; stmt.executeUpdate(tblSQL); stmt.close(); con.close(); And the error is as follows: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''dev'.'testTable' ( 'id' int(11) NOT NULL AUTO_INCREMENT, 'date' smallint(6) N' at line 1 I would appreciate it if anyone could spot the mistake in this query, as I've tried executing this within phpMyAdmin and it works as it should. Thanks in advance.

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KeyListener problem

- by rgksugan

In my apllication i am using a jpanel in which i want to add a key listener. I did it. But it doesnot work. Is it because i am using a swingworker to update the contents of the panel every second. Here is my code to update the panel RenderedImage image = ImageIO.read(new ByteArrayInputStream((byte[]) get())); Graphics graphics = remote.rdpanel.getGraphics(); if (graphics != null) { Image readyImage = new ImageIcon(UtilityFunctions.convertRenderedImage(image)).getImage(); graphics.drawImage(readyImage, 0, 0, remote.rdpanel.getWidth(), remote.rdpanel.getHeight(), null); }

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google map in android emulator problem

- by Hiren Dabhi

Hi, instead of it displaying google map it only display grid view. - i followed all the steps that are in following sites examples http://mobiforge.com/developing/story/using-google-maps-android or http://www.androidpeople.com/android-google-map-application-example/ - i also set the proxy server run -- run configuration.. -- myapplication--target tab-- additional command line -http-proxy http://192.68.100.101:8080/ Still i am not getting the google map. NOTE: i tried this in my mobile it works fine but not display in android emulator. where i made mistake plz help me. thank in advance

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Loading swf Problem in Air,Flex3

- by vineth

Hi, I have 2 swf file, one file is loading fine in SWFLoader in Air application but another is not loading, i dont know why its happening. differents between two file :- For ex: Swf1 is Main swf .(it has dependency file like xml to read and render) swf2 is Sub swf(which will load (or called) inside swf1 in run time) . When try to load swf2 in flex3 air application using SWFLoader its working fine, but swf1 is not loading. Swf1 is working fine individually in flash player 9. But i need to load SWF1 only. Thanks in advance

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SIFR Newbie: font display problem in non-flash browsers

- by bullquartz

Hi, I'm wondering if someone can help me with this as I'm fairly new to siFR and think there is something essential i'm not comprehending in the documentation. I'm having success using siFR 3 (r436) to render fonts and it's working just how I want. However if I turn flash off in any browser the original (no longer rendered) html text displays very badly indeed. I thought that in any non-flash browser my inital stylesheet would be referred to and not siFR.css and I would be able to adjust the html text as a seperate entity. I think i probably developed this bad idea because I remember in earlier siFR versions you had to mess around alot with stylings on the original stylesheet + the sifr-config so you would get corresponding line heights/widths etc between the html and rendered font. (i realise that siFR 3 renders the flash in a different way) So it seems that siFR.css controls both the non-flash text and the rendered font. Anyway my essential noob questions is: how do i get the the original html text to have the same dimensions as the rendered font? thanks for you help

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