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Why does this code generate an error? [closed]

- by user559601

<link rel="search" type="application/opensearchdescription+xml" href="http://b.static.ak.fbcdn.net/rsrc.php/yJ/r/H2SSvhJMJA-.xml" title="" /> <link rel="shortcut icon" href="http://static.ak.fbcdn.net/rsrc.php/y7/r/5875srnzL-I.ico" /></head> <body class="WelcomePage UIPage_LoggedOut mac Locale_en_US"> <div id="FB_HiddenContainer" style="position:absolute; top:-10000px; width:0px; height:0px;" ></div> <div id="blueBar" class="loggedOut"></div> <div id="globalContainer"><div id="dialogContainer"></div><div id="dropmenu_container"></div> <div id="content" class="fb_content clearfix"><div > <div class="WelcomePage_Container"><div class="loggedout_menubar_container"><div class="clearfix loggedout_menubar"><a class="lfloat" href="/" title="Go to Home"><img class="fb_logo img" src="http://static.ak.fbcdn.net/rsrc.php/yp/r/kk8dc2UJYJ4.png" alt="Facebook logo" width="170" height="36" /></a><div class="rfloat"><div class="menu_login_container"><form method="POST" action="https://login.facebook.com/login.php?login_attempt=1" id="login_form" onsubmit="return Event.__inlineSubmit(this,event)"><input type="hidden" name="charset_test" value="€,´,€,´,?,?,?" /><input type="hidden" name="lsd" value="hEICz" autocomplete="off" /><input type="hidden" id="locale" name="locale" value="en_US" autocomplete="off" /><table cellspacing="0"><tr><td class="html7magic"><label for="email">Email</label></td><td class="html7magic"><label for="pass">Password</label></td></tr><tr><td><input type="text" class="inputtext" name="email" id="email" tabindex="1" /></td><td><input type="password" class="inputtext" name="pass" id="pass" tabindex="2" /></td><td><label class="uiButton uiButtonConfirm"><input value="Login" tabindex="4" type="submit" /></label></td></tr><tr><td class="login_form_label_field"><input type="checkbox" class="inputcheckbox" value="1" id="persistent" name="persistent" checked="1" /><input type="hidden" name="default_persistent" value="1" /><label id="label_persistent" for="persistent">Keep me logged in</label></td><td class="login_form_label_field"><a href="http://www.facebook.com/reset.php" rel="nofollow">Forgot your password?</a></td></tr></table><input type="hidden" name="charset_test" value="€,´,€,´,?,?,?" /><input type="hidden" id="lsd" name="lsd" value="hEICz" autocomplete="off" /></form> </div></div></div></div><div class="WelcomePage_MainSell"><div class="WelcomePage_MainSellCenter clearfix"><div class="WelcomePage_MainSellLeft"><div class="WelcomePage_MainMessage">Facebook helps you connect and share with the people in your life.</div><div class="WelcomePage_MainMap"> </div></div><div class="WelcomePage_MainSellRight"><div class="WelcomePage_SignUpSection"><div class="WelcomePage_SignUpMessage"><div class="WelcomePage_SignUpHeadline">Sign Up</div><div class="WelcomePage_SignUpSubheadline">It's free, and always will be.</div></div><div class="WelcomePage_SimpleReg" id="registration_container"><div><noscript><div id="no_js_box"><h2>Javascript is disabled on your browser.</h2><p>Please enable JavaScript on your browser or upgrade to a Javascript-capable browser to register for Facebook.</p></div></noscript><div id="simple_registration_container" class="simple_registration_container"><div id="reg_box"><form method="post" id="reg" name="reg" onsubmit="return function(event){return false;}.call(this,event)!==false && Event.__inlineSubmit(this,event)"><input type="hidden" autocomplete="off" name="post_form_id" value="c3a2bed7243b9a85f53d69f23a38da9d" /><input type="hidden" name="lsd" value="hEICz" autocomplete="off" /><input type="hidden" autocomplete="off" id="reg_instance" name="reg_instance" value="bpgeTawHFSiHa5-7SR4gbif7" /><input type="hidden" autocomplete="off" id="locale" name="locale" value="en_US" /><input type="hidden" autocomplete="off" id="terms" name="terms" value="on" /><input type="hidden" autocomplete="off" id="abtest_registration_group" name="abtest_registration_group" value="1" /><input type="hidden" autocomplete="off" id="referrer" name="referrer" value="" /><input type="hidden" autocomplete="off" id="md5pass" name="md5pass" value="" /><input type="hidden" autocomplete="off" id="validate_mx_records" name="validate_mx_records" value="1" /><input type="hidden" autocomplete="off" id="ab_test_data" name="ab_test_data" value="" /><div id="reg_form_box" class="large_form"><table class="uiGrid editor" cellspacing="0" cellpadding="1"><tbody><tr><td class="label">First Name:</td><td><div class="field_container"><input type="text" class="inputtext" id="firstname" name="firstname" /></div></td></tr><tr><td class="label">Last Name:</td><td><div class="field_container"><input type="text" class="inputtext" id="lastname" name="lastname" /></div></td></tr><tr><td class="label">Your Email:</td><td><div class="field_container"><input type="text" class="inputtext" id="reg_email__" name="reg_email__" /></div></td></tr><tr><td class="label">Re-enter Email:</td><td><div class="field_container"><input type="text" class="inputtext" id="reg_email_confirmation__" name="reg_email_confirmation__" /></div></td></tr><tr><td class="label">New Password:</td><td><div class="field_container"><input type="password" class="inputtext" id="reg_passwd__" name="reg_passwd__" value="" /></div></td></tr><tr><td class="label">I am:</td><td><div class="field_container"><div class="hidden_elem"><select><option></option><option></option></select><select><option></option><option></option></select></div><select class="select" name="sex" id="sex"><option value="0">Select Sex:</option><option value="1">Female</option><option value="2">Male</option></select></div></td></tr><tr><td class="label">Birthday:</td><td><div class="field_container"> <select class="" id="birthday_month" name="birthday_month" onchange="return run_with(this, ["editor"], function() {editor_date_month_change(this, "birthday_day", "birthday_year");});"><option value="-1">Month:</option><option value="1">Jan</option>

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jpa-Primarykey relationship

- by megala

Hi created student entity in gogole app engine datastore using JPA. Student---Coding @Entity @Table(name="StudentPersonalDetails", schema="PUBLIC") public class StudentPersonalDetails { @Id @Column(name = "STUDENTNO") private Long stuno; @Basic @Column(name = "STUDENTNAME") private String stuname; public void setStuname(String stuname) { this.stuname = stuname; } public String getStuname() { return stuname; } public void setStuno(Longstuno) { this.stuno = stuno; } public Long getStuno() { return stuno; } public StudentPersonalDetails(Long stuno,String stuname) { this.stuno = stuno; this.stuname = stuname; } } I stored Property value as follows Stuno Stuname 1 a 2 b If i stored Again Stuno No 1 stuname z means it wont allow to insert the record But. It Overwrite the value Stuno Stuname 1 z 2 b How to solve this?

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recursive program

- by wilson88

I am trying to make a recursive program that calculates interest per year.It prompts the user for the startup amount (1000), the interest rate (10%)and number of years(1).(in brackets are samples) Manually I realised that the interest comes from the formula YT(1 + R)----- interest for the first year which is 1100. 2nd year YT(1 + R/2 + R2/2) //R squared 2nd year YT(1 + R/3 + R2/3 + 3R3/) // R cubed How do I write a recursive program that will calculate the interest? Below is the function which I tried //Latest after editing double calculateInterest2(double start, double rate, int duration) { if (0 == duration) { return start; } else { return (1+rate) * calculateInterest2(start, rate, duration - 1); } }

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Call static properties within another class in php

- by ali A

I have problem about calling a static property of a class inside another class. Class A { public $property; public function __construct( $prop ) { $this->property = $prop; } public function returnValue(){ return static::$this->property; } } Class B extends A { public static $property_one = 'This is first property'; public static $property_two = 'This is second property'; } $B = new B( 'property_one' ); $B->returnValue(); I expect to return This is first property But the Output is just the name a parameter input in __construct; When I print_r( static::$this->property ); the output is just property_one

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WinMain not called before main (C/C++ Program Entry Point Issue)

- by BT

I was under the impression that this code #include <windows.h> #include <stdio.h> int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow) { printf("WinMain\n"); return 0; } int main() { printf("main\n"); return 0; } would output WinMain, but of course nothing ever works how you expects. Anyways, could somebody please tell me how to get this program to run WinMain first (I do have a reason for using both). I'm running windows 7 with mingw if that helps anything.

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Can I create a transaction using ADO NET Entity Data Model?

- by Junior Mayhé

Hi is it possible on the following try-catch to execute a set of statements as a transaction using ADO NET Entity Data Model? [ValidateInput(false)] [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(Customer c) { try { c.Created = DateTime.Now; c.Active = true; c.FullName = Request.Form["FirstName"]; db.AddToCustomer(c); db.SaveChanges(); Log log = new Log();//another entity model object log.Created = DateTime.Now; log.Message = string.Format(@"A new customer was created with customerID {0}", c.CustomerID); db.AddToLog(log); db.SaveChanges(); return RedirectToAction("CreateSuccess", "Customer"); } catch { return View(); } } Any thoughts would be very appreciated.

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Avoiding explicit recursion in Haskell

- by Travis Brown

The following simple function applies a given monadic function iteratively until it hits a Nothing, at which point it returns the last non-Nothing value. It does what I need, and I understand how it works. lastJustM :: (Monad m) => (a -> m (Maybe a)) -> a -> m a lastJustM g x = g x >>= maybe (return x) (lastJustM g) As part of my self-education in Haskell I'm trying to avoid explicit recursion (or at least understand how to) whenever I can. It seems like there should be a simple non-explicitly recursive solution in this case, but I'm having trouble figuring it out. I don't want something like a monadic version of takeWhile, since it could be expensive to collect all the pre-Nothing values, and I don't care about them anyway. I checked Hoogle for the signature and nothing shows up. The m (Maybe a) bit makes me think a monad transformer might be useful here, but I don't really have the intuitions I'd need to come up with the details (yet). It's probably either embarrassingly easy to do this or embarrassingly easy to see why it can't or shouldn't be done, but this wouldn't be the first time I've used self-embarrassment as a pedagogical strategy. Background: Here's a simplified working example for context: suppose we're interested in random walks in the unit square, but we only care about points of exit. We have the following step function: randomStep :: (Floating a, Ord a, Random a) => a -> (a, a) -> State StdGen (Maybe (a, a)) randomStep s (x, y) = do (a, gen') <- randomR (0, 2 * pi) <$> get put gen' let (x', y') = (x + s * cos a, y + s * sin a) if x' < 0 || x' > 1 || y' < 0 || y' > 1 then return Nothing else return $ Just (x', y') Something like evalState (lastJustM (randomStep 0.01) (0.5, 0.5)) <$> newStdGen will give us a new data point.

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Objects instead of global variables in Perl

- by Gaurav Dadhania

I don't know if this is the right thing to do. But I'm lookig for tutorials/articles on using objects instead of global variables to store state. For eg. package something # some code here... # that generates errors and uses # something::errors to track errors. package something::errors sub new { my ($this) = @_; bless $this; return $this; } sub setErrors{ my ($this, @errors) = @_; $this->{errors} = \@errors; } sub getErrors{ my ($this) = @_; return $this->{errors}; } Is this better than using global varibles? Any down-sides to this? Any approach which might be better? Thanks.

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param : implicit EL (Expression Language) object in JSP

- by coffy

What if I have URL like: servlet.jsp?myparam=myvalue These 2 ELs should return output "myvalue" , but I actually don't understand why?: ${param.values["myparam"]["0"]} ${param.values.myparam[0]}

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Why is an anonymous inner class containing nothing generated from this code?

- by Andrew Westberg

When run through javac on the cmd line Sun JVM 1.6.0_20, this code produces 6 .class files OuterClass.class OuterClass$1.class OuterClass$InnerClass.class OuterClass$InnerClass2.class OuterClass$InnerClass$InnerInnerClass.class OuterClass$PrivateInnerClass.class When run through JDT in eclipse, it produces only 5 classes. OuterClass.class OuterClass$1.class OuterClass$InnerClass.class OuterClass$InnerClass2.class OuterClass$InnerClass$InnerInnerClass.class OuterClass$PrivateInnerClass.class When decompiled, OuterClass$1.class contains nothing. Where is this extra class coming from and why is it created? package com.test; public class OuterClass { public class InnerClass { public class InnerInnerClass { } } public class InnerClass2 { } //this class should not exist in OuterClass after dummifying private class PrivateInnerClass { private String getString() { return "hello PrivateInnerClass"; } } public String getStringFromPrivateInner() { return new PrivateInnerClass().getString(); } }

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Overrided ToString doesn't show in debug

- by marco.ragogna

I have a collection similar to: Public Class MyCollection Inherits ObservableCollection(Of MyCollection) Private _Name As String Public Property Name() As String Get Return _Name End Get Set(ByVal value As String) _Name = value End Set End Property Public Overrides Function ToString() As String Return "Name: " & _Name End Function End Class I have overrided ToString method in order to help in debug, but it doesn't show up. In the code that follow if, during debug, I move the mouse over coll it shows me Count = 0 Private Sub Window1_Loaded(ByVal sender As Object, ByVal e As System.Windows.RoutedEventArgs) Handles Me.Loaded Dim coll As New MyCollection coll.Name = "Test" End Sub Do you know what could be the problem?

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Is an ArrayList automatically declared static in Java, if it is an instance variable?

- by Alex

I'm trying to do something like this: private class aClass { private ArrayList<String> idProd; aClass(ArrayList<String> prd) { this.idProd=new ArrayList<String>(prd); } public ArrayList<String> getIdProd() { return this.idProd; } } So if I have multiple instances of ArrayLIst<String> (st1 ,st2 ,st3) and I want to make new objects of aClass: { aClass obj1,obj2,obj3; obj1=new aClass(st1); obj2=new aClass(st2); obj3=new aClass(st3); } Will all of the aClass objects return st3 if I access the method getIdProd() for each of them(obj1..obj3)? Is an ArrayList as an instance variable automatically declared static?

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What is this Design Pattern?

- by Can't Tell

I read the Wikipedia articles on FactoryMethod and AbstractFactory but the following code doesn't seem to fit anywhere. Can someone explain to me what the following pattern is or if it is an anti-pattern? interace PaymentGateway{ void makePayment(); } class PaypalPaymentGateway implements PaymentGateway { public void makePayment() { //some implementation } } class AuthorizeNetPaymentGateway implements PaymentGateway { public void makePayment() { //some implementation } } class PaymentGatewayFacotry{ PaymentGateway createPaymentGateway(int gatewayId) { if(gatewayId == 1) return PaypalPaymentGateway(); else if(gatewayId == 2) return AuthorizeNetPaymentGateway(); } } Let's say the user selects the payment method using a radio button on an html page and the gatewayId is derived from the radio button value. I have seen code like this and thought it was the AbstractFactory pattern but after reading the Wikipedia article, I'm having doubts.

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Can't set element ID in JavaScript, it's always undefined

- by Dylaan Alith

Hi, I want to have a function that generates ID's on the fly for a given jquery object, if it doesn't have one already. These ID's should then be used in future requests. I came up with the code below, but it doesn't work. The ID's are never set. The commented out alert statement below always return undefined. I always pass code like $(this) or $(options.el) as a parameter to substitute 'el'. Initially, the elements do not have explicitly ID set in HTML. Any help would be appreciated, here's the code: getElementId: function(el) { if(undefined == el.attr('id')) { el.attr('id',"anim-"+Math.random().toString().substr(2)); } // alert(el.attr('id')); return el.attr('id'); },

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Unexpected key-value behavior in a Core Data Context

- by ????

If I create an array of strings (via key-value coding) containing the names of a Managed Object entity's attributes which are stored in the App Delegate the first time, I get an array of NSStrings without any problems. If I subsequently make the same call later from the same entry point in code, that same collection becomes an array of NULL objects- even though nothing in the Core Data Context has changed. One unappealing work-around involves re-creating the string array every time, but I'm wondering if anyone has a guess as to what's happening behind the scenes. // Return an array of strings with the names of attributes the Activity entity - (NSArray *)activityAttributeNames { #pragma mark ALWAYS REFRESH THE ENTITY NAMES? //if (activityAttributeNames == nil) { // Create an entity pointer for Activity NSEntityDescription *entity = [NSEntityDescription entityForName:@"Activity" inManagedObjectContext:managedObjectContext]; NSArray *entityAttributeArray = [[NSArray alloc] initWithArray:[[entity attributesByName] allValues]]; // Extract the names of the attributes with Key-Value Coding activityAttributeNames = [entityAttributeArray valueForKeyPath:@"name"]; [entityAttributeArray release]; //} return activityAttributeNames; }

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Getting the responseText from XMLHttpRequest-Object

- by Sammy46

I wrote a cgi-script with c++ to return the query-string back to the requesting ajax object. I also write the query-string in a file in order to see if the cgi script works correctly. But when I ask in the html document for the response Text to be shown in a messagebox i get a blank message. here is my code: js: <script type = "text/javascript"> var XMLHttp; if(navigator.appName == "Microsoft Internet Explorer") { XMLHttp = new ActiveXObject("Microsoft.XMLHTTP"); } else { XMLHttp = new XMLHttpRequest(); } function getresponse () { XMLHttp.open ("GET", "http://localhost/cgi-bin/AJAXTest?" + "fname=" + document.getElementById('fname').value + "&sname=" + document.getElementById('sname').value,true); XMLHttp.send(null); } XMLHttp.onreadystatechange=function(){ if(XMLHttp.readyState == 4) { document.getElementById('response_area').innerHTML += XMLHttp.readyState; var x= XMLHttp.responseText alert(x) } } </script> First Names(s)<input onkeydown = "javascript: getresponse ()" id="fname" name="name"> <br> Surname<input onkeydown = "javascript: getresponse();" id="sname"> <div id = "response_area"> </div> C++: int main() { QFile log("log.txt"); if(!log.open(QIODevice::WriteOnly | QIODevice::Text)) { return 1; } QTextStream outLog(&log); QString QUERY_STRING= getenv("QUERY_STRING"); //if(QUERY_STRING!=NULL) //{ cout<<"Content-type: text/plain\n\n" <<"The Query String is: " << QUERY_STRING.toStdString()<< "\n"; outLog<<"Content-type: text/plain\n\n" <<"The Query String is: " <<QUERY_STRING<<endl; //} return 0; } I'm happy about every advice what to do! EDIT: the output to my logfile works just fine: Content-type: text/plain The Query String is: fname=hello&sname=world I just noticed that if i open it with IE8 i get the query-string. But only on the first "keydown" after that IE does nothing.

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parsing Two-dimensional array in c

- by gitter78

I'm trying to parse an array that looks like the one below: char *arr[][2] = { { "1", "Purple" }, { "2", "Blue" }, { "22", "Red" }, ... }; I was thinking having a loop as: char *func(char *a){ for(i = 0; i<sizeof(arr)/sizeof(arr[0]);i++){ if(strstr(a,arr[i][0])!=NULL) return arr[i][1]; } } char *out; const char *hello = "this is my 2 string"; out = func(hello); In this case, I'm trying to get the second value based on the first one: Purple, Blue Red, etc.. The question is how would go in parsing this and instead of printing out the value, return the value. UPDATE/FIXED: It has been fixed above. Thanks

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How do I use a UIView subclass as a container?

- by dxq

I'm trying to subclass UIView to create a custom view that is essentially a container. The subclass contains a UILabel and a UIImageView- I can't make either of them show up. Here's an example of what I've been trying: In my main view controller: - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) { ViewClass *myView = [[ViewClass alloc] initWithFrame:CGRectMake(100, 100, 150, 150)]; [view addSubview:myView]; } return self; } In my UIView subclass: - (id)initWithFrame:(CGRect)frame { if (self = [super initWithFrame:frame]) { UILabel *word = [[[UILabel alloc] initWithFrame:[self bounds]] autorelease]; word.text = @"WHY ISN'T THIS SHOWING UP!?"; [self addSubview:word]; } return self; } Can anyone explain what I'm doing wrong? I'm way out of practice with UIKit and Obj-C, and I figure I'm probably missing something obvious.

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PHP echo query result in Class??

- by Jerry

Hi all I have a question about PHP Class. I am trying to get the result from Mysql via PHP. I would like to know if the best practice is to display the result inside the Class or store the result and handle it in html. For example, display result inside the Class class Schedule { public $currentWeek; function teamQuery($currentWeek){ $this->currentWeek=$currentWeek; } function getSchedule(){ $connection = mysql_connect(DB_SERVER,DB_USER,DB_PASS); if (!$connection) { die("Database connection failed: " . mysql_error()); } $db_select = mysql_select_db(DB_NAME,$connection); if (!$db_select) { die("Database selection failed: " . mysql_error()); } $scheduleQuery=mysql_query("SELECT guest, home, time, winner, pickEnable FROM $this->currentWeek ORDER BY time", $connection); if (!$scheduleQuery){ die("database has errors: ".mysql_error()); } while($row=mysql_fetch_array($scheduleQuery, MYSQL_NUMS)){ //display the result..ex: echo $row['winner']; } mysql_close($scheduleQuery); //no returns } } Or return the query result as a variable and handle in php class Schedule { public $currentWeek; function teamQuery($currentWeek){ $this->currentWeek=$currentWeek; } function getSchedule(){ $connection = mysql_connect(DB_SERVER,DB_USER,DB_PASS); if (!$connection) { die("Database connection failed: " . mysql_error()); } $db_select = mysql_select_db(DB_NAME,$connection); if (!$db_select) { die("Database selection failed: " . mysql_error()); } $scheduleQuery=mysql_query("SELECT guest, home, time, winner, pickEnable FROM $this->currentWeek ORDER BY time", $connection); if (!$scheduleQuery){ die("database has errors: ".mysql_error()); // create an array } $ret = array(); while($row=mysql_fetch_array($scheduleQuery, MYSQL_NUMS)){ $ret[]=$row; } mysql_close($scheduleQuery); return $ret; // and handle the return value in php } } Two things here: I found that returned variable in php is a little bit complex to play with since it is two dimension array. I am not sure what the best practice is and would like to ask you experts opinions. Every time I create a new method, I have to recreate the $connection variable: see below $connection = mysql_connect(DB_SERVER,DB_USER,DB_PASS); if (!$connection) { die("Database connection failed: " . mysql_error()); } $db_select = mysql_select_db(DB_NAME,$connection); if (!$db_select) { die("Database selection failed: " . mysql_error()); } It seems like redundant to me. Can I only do it once instead of calling it anytime I need a query? I am new to php class. hope you guys can help me. thanks.

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How can i pass a single additional argument to array_map callback in PHP?

- by Gremo

How can i pass a single additional argument to array_map callback? In my example i'd like to pass $smsPattern (as a second argument, after current element in $featureNames) to the function array_map with $getLimit closure: $features = $usage->getSubscription()->getUser()->getRoles(); // SMS regular expression in the form of ROLE_SEND_SMS_X $smsPattern = '/^ROLE_SEND_SMS_(?P<l>\d+)$/i'; // Function to get roles names and X from a role name $getNames = function($r) { return trim($r->getRole()); }; $getLimit = function($name, $pattern) { if(preg_match($pattern, $name, $m)) return $m['l']; }; // Get roles names and their limits ignoring null values with array_filter $featuresNames = array_map($getNames, $features); $smsLimits = array_filter(array_map($getLimit, $featureNames, $smsPattern)); With this code i'm getting a weird warning: Warning: array_map() [function.array-map]: Argument #3 should be an array. Of course di reason is for reusing $getLimit closure with another regular expression like $smsPattern. Thanks.

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Returning messages in Smalltalk

- by Zachary

I have a Dictionary of objects I have created in smalltalk, which I am iterating over by enumerating it based on the key/value pairs. For value object in the dictionary, I am calling a method on that object. Based on certain conditions, I would like for this object to be able to add a new member to dictionary, and possibly delete another one. I've been looking at the 'Perform' and 'Messages' facilities in Smalltalk, but I'm not sure if it is even possible to do what I'm trying to do - is it possible to return a message (or multiple messages), which another object can process and perform? For example, could my method return 'removeKey: 19' and 'add object' at the same time? I am using GNU Smalltalk, if it matters.

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Tile Engine: Entity location wrong

- by Trizicus

I've made a tile engine that has 30px by 30px. I've ran into a problem with an object for example. I've loaded an object 20px by 20px and when I do a collision check I have to use x/y position which is top left in Java2D. How can I do collision detection based on the entire object? This is relevant code: boolean checkCol() { int currentGridX = ship.getX()/30; int currentGridY = ship.getY()/30; if(test[currentGridX][currentGridY] == 0) return true; System.out.println("collision"); return false; }

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jQuery autosuggest example

- by RUtt

I need to implement an "autosuggest" feature on our site but it needs to re-query the on every keystroke after a certain number of keys (like every character after 2 it would need to query again). So the result isn't a limiting search. For example, the autocomplete plugins I've seen work like the following: [looking for a county] 1. customer types 'CA' and the first result would return 'Canada', 'Cambodia', and 'Camaroon' 2. customer continues to type and hits 'M' the new results would query within the only the existing 3 results (producing results of just 'Cambodia' and 'Camaroon') I need a solution that would be the equivalent of querying my datasource on each keystroke. I already have the ajax call that will return my results based on the "typed" params. For example (in the above example), it would need to make an ajax call passing 'ca' first and if the customer kept typing passing 'can' on the 3 character and so forth. Thanks.

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Downloading a csv file in django

- by spyder

I am trying to download a CSV file using HttpResponse to make sure that the browser treats it as an attachment. I follow the instructions provided here but my browser does not prompt a "Save As" dialog. I cannot figure out what is wrong with my function. All help is appreciated. dev savefile(request): try: myfile = request.GET['filename'] filepath = settings.MEDIA_ROOT + 'results/' destpath = os.path.join(filepath, myfile) response = HttpResponse(FileWrapper(file(destpath)), mimetype='text/csv' ) response['Content-Disposition'] = 'attachment; filename="%s"' %(myfile) return response except Exception, err: errmsg = "%s"%(err) return HttpResponse(errmsg) Happy Pat's day!

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question about php decode JSON

- by cj333

Hi, I still have some question about php decode JSON. the JSON return like this. all({"Total":30,"Debug":null,"Documents":[ { "DocTitle":"Image: A municipal police officer takes positio", "Docmultimedia":[ { "DocExpire":"2/7/2011 1:39:02 PM" } ] } ...] }); this is my php code: foreach ($data->Documents as $result) { echo htmlspecialchars($result->DocTitle).'<br />'; if(!empty($result->Docmultimedia)){ echo htmlspecialchars($result->Docmultimedia->DocExpire).'<br />'; } } It return Warning: Invalid argument supplied for foreach(). and echo htmlspecialchars($result->Docmultimedia->DocExpire), is it write right? Thanks all.

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