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  • How can I give a variable to an action listener?

    - by Roman
    I have a static variable partner in the class. And I want to set a value of these variable whenever a radio button is pressed. This is the code I tried to use: for (String playerName: players) { option = new JRadioButton(playerName, false); option.addActionListener(new ActionListener(){ @Override public void actionPerformed(ActionEvent evt) { partner = playerName; } }); partnerSelectionPanel.add(option); group.add(option); } The problem here is that the actionPerformed does not see the variable playerName created in the loop. How can I pass this variable to the actionListener?

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  • ssh-keygen accepting stdin

    - by Ryan
    I am trying to call ssh-keygen using a variable through bash as an input instead of a file to get a fingerprint of a public key. This method does not work as it says the key file is invalid (it's correct for sure) echo $pubkey | ssh-keygen -lf /dev/stdin This does work ssh-keygen -lf /dev/stdin < alpha.pub This does not work because I get an ambiguous redirect ssh-keygen -lf /dev/stdin < $(echo $pubkey) I would appreciate some insight as to how to get ssh-keygen to read from a variable with a public key and if possible, an explanation as to why the redirects aren't doing what I think they should be doing. I searched online but many of the redirect tutorials didn't seem to answer my questions.

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  • Is it bad practice to have state in a static class?

    - by Matthew
    I would like to do something like this: public class Foo { // Probably really a Guid, but I'm using a string here for simplicity's sake. string Id { get; set; } int Data { get; set; } public Foo (int data) { ... } ... } public static class FooManager { Dictionary<string, Foo> foos = new Dictionary<string, Foo> (); public static Foo Get (string id) { return foos [id]; } public static Foo Add (int data) { Foo foo = new Foo (data); foos.Add (foo.Id, foo); return foo; } public static bool Remove (string id) { return foos.Remove (id); } ... // Other members, perhaps events for when Foos are added or removed, etc. } This would allow me to manage the global collection of Foos from anywhere. However, I've been told that static classes should always be stateless--you shouldn't use them to store global data. Global data in general seems to be frowned upon. If I shouldn't use a static class, what is the right way to approach this problem? Note: I did find a similar question, but the answer given doesn't really apply in my case.

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  • AuthLogic - how to determine current user id throughout the system?

    - by sscirrus
    Hi all, I have set up AuthLogic almost exactly as per the AuthLogic example app at http://github.com/binarylogic/authlogic_example. After someone logs in as User, they can click on links that send them away into the system and away from the users controller. This is an incredibly noob question, but how can I access that User's ID and other attributes from anywhere else, such as an unrelated view or unrelated controller? An example of what I'd like to do: #matchings controller @matching = Matching.find_by_user_id(user.id)

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  • How to get the real type of a value inside string?

    - by CuSS
    I was searching here on StackOverflow about converting string to the real value and i didn't found. I need a function like "gettype" that does something like the result above, but i can't do it all :s gettypefromstring("1.234"); //returns (doble)1,234; gettypefromstring("1234"); //returns (int)1234; gettypefromstring("a"); //returns (char)a; gettypefromstring("true"); //returns (bool)true; gettypefromstring("khtdf"); //returns (string)"khtdf"; Thanks to all :)

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  • How do I change Windows Service environment path

    - by rs
    I need to change thw environment variable Environment.GetEnvironmentVariable("TMP") for a Windows service in .NET 2.0 that is running with its own user account. The server is a Windows Server 2003, SP2. Can anybody tell me how to change the Windows environment variable for that user?

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  • one variable and multiple controllers..

    - by Simon
    I'm working on a web application, using the CAKEPHP framework. Herefor i need to request one variable on multiple pages (all pages have different controllers). it is oubvious that i get a error on several pages, since the variable isn't declared in all the different controllers. Is there a workaround for this? i've already tried the app:: import to import a controller in another controller, but this doens't seem to work (still get a undefined variable error). Thnx for your cooperation! Regards, Simon

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  • Global variable call working only first time

    - by Ruthy
    Hello, I defined a global variable that is called from other view and it is working first time but not following ones, it keeps with value from first call! Suppose that is a cocoa fundamental problem and variable is not properly defined according its need. Thanks for any idea to solve it. declaration: @interface TableArchiveAppDelegate : NSObject <UIAppDelegate> { NSString *varName; } @property (nonatomic, copy) NSString *varName; then related lines on .m file: @synthesize varName; -(void)test{ varName = textField.text; } and request from another view: - (void)viewDidLoad { TableArchiveAppDelegate *mainDelegate = (TableArchiveAppDelegate *)[[UIApplication sharedApplication] delegate]; name.text = mainDelegate.varName; [super viewDidLoad]; }

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  • java question: Is it a method?

    - by Stefan
    Hello, I'm no Java guy, so I ask myself what this means: public Button(Light light) { this.light = light; } Is Button a method? I ask myself, because it takes an input parameter light. But if it was a method, why would it begin with a capital letter and has no return data type? Here comes the full example: public class Button { private Light light; public Button(Light light) { this.light = light; } public void press() { light.turnOn(); } } I know, this question is really trivial. However, I have nothing to do with Java and haven't found a description for the Button thing above. I'm just interested.

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  • Dispatcher Timer Problem

    - by will
    I am trying to make a game in silverlight that also has widgets in it. To do this I am using a dispatcher timer running a game loop that updates graphics etc. In this I have a variable that has to be accessed by both by the constantly running game loop and UI event code. At first look it seemed that the gameloop had its own local copy of currentUnit (the variable), despite the variable being declared globally. I am trying to update currentUnit with an event by the widget part of the app, but the timer's version of the variable is not being updated. What can I do get the currentUnit in the gameloop loop to be updated whenever I update currentUnit via a click event? Here is the code for setting currentUnit as part of a click event DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(Unit)); currentUnit = serializer.ReadObject(e.Result) as Unit; txtName.Text = currentUnit.name; Canvas.SetLeft(txtName, 100 - (int)Math.Ceiling(txtName.ActualWidth) / 2); txtX.Text = "" + currentUnit.x; txtY.Text = "" + currentUnit.y; txtX.Text = "" + currentUnit.owner; txtY.Text = "" + currentUnit.moved; txtName.Text = "" + currentUnit.GetHashCode(); And here is a snippet from the gameLoop loop //deal with phase changes and showing stuff if (txtPhase.Text == "Move" && movementPanel.Visibility == Visibility.Collapsed) { if (currentUnit != null) { if (currentUnit.owner) { if (currentUnit.moved) { txtMoved.Text = "This Unit has Already Moved!"; movementPanel.Visibility = Visibility.Collapsed; } else { txtMoved.Text = "" + currentUnit.GetHashCode(); movementPanel.Visibility = Visibility.Visible; } } else { txtMoved.Text = "bam"; movementPanel.Visibility = Visibility.Collapsed; } } else { txtMoved.Text = "slam"; movementPanel.Visibility = Visibility.Collapsed; } //loadUnitList(); } Here is the code for my unit class. using System; public class Unit { public int id { get; set; } public string name { get; set; } public string image { get; set; } public int x { get; set; } public int y { get; set; } public bool owner { get; set; } public int rotation { get; set; } public double movement { get; set; } public string type { get; set; } public bool moved { get; set; } public bool fired { get; set; } } Overall, any simple types, like a double is being 'updated' correctly, yet a complex of my own type (Unit) seems to be holding a local copy. Please help, I've asked other places and no one has had an answer for me!

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  • os.environ() giving errors while setting for Hudson

    - by Arnab Sen Gupta
    I want a small python script to set the HUDSON_HOME environment variable. When using the shell, I can easily do this using set HUDSON_HOME=http://localhost:8080 But how can I do the same directly through python?? I don't want to do it by passing the command line to os.system().. can os.environ() be of any help?? I had in my script: import os os.environ('HUDSON_HOME')='http://localhost:8080' but it's probably setting it for the subprocss and not the parent shell..any way around this??

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  • Why is my PHP string being converted to 1?

    - by animuson
    Ok, so here's the quick rundown. I have a function to generate the page numbers. This: <?php die($ani->e->tmpl->pages("/archive", 1, 15, 1, true)); ?> will output Single Page like expected. But this: <?php $page_numbers = $ani->e->tmpl->pages("/archive", 1, 15, 1, true); ?> <?= $page_numbers ?> will output a simple 1 to the page. Why is it getting converted to a 1? I would expect it to store the 'Single Page' string to the page_numbers variable and then output it (like an echo) exactly the same. EDIT: Running a var_dump($page_numbers) returns int(1)... Here is the entire function in context: <?php // other functions... function show_list() { global $ani; $page_numbers = $ani->e->tmpl->pages("/archive", 1, 15, 1, true); ob_start(); ?> <!-- content:start --> <?php $archive_result = $ani->e->db->build(array("select" => "*", "from" => "animuson_archive", "orderby" => "0-time", "limit" => 15)); while ($archive = $ani->e->db->fetch($archive_result)) { ?> <h2><a href="/archive/article/<?= $archive['aid'] ?>/<?= $archive['title_nice'] ?>"><?= $archive['title'] ?></a></h2> <!-- breaker --> <?php } ?> <?= var_dump($page_numbers) ?> <!-- content:stop --> <?php $ani->e->tmpl->process("box", ob_get_clean()); } // other functions... ?>

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  • Porting some PHP to ColdFusion

    - by Oscar Godson
    OK, I'm working with converting some very basic PHP to port to a dev server where the client only has CF. Ive never worked with it, and I just need to know how to port a couple things: <?php $pageTitle = 'The City That Works'; $mainCSSURL = 'header_url=../images/banner-home.jpg&amp;second_color=484848&amp;primary_color=333&amp;link_color=09c&amp;sidebar_color=f2f2f2'; require('includes/header-inc.php'); ?> I know: <cfinclude template="includes/header-inc.cfm"> but how to i get the var to be passed to the include and then how do I use it on the subsequent included file? Also in my CSS (main.php) I have (at the top): <?php header('Content-type: text/css'); foreach($_GET as $css_property => $css_value) {define(strtoupper($css_property),$css_value);} ?> and im using those constants like this: #main-content a {color:#<?= LINK_COLOR ?>;} How can I get that to work also with CF? Never thought I'd be working with CF :)

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  • Assigning values to variable WHILE loop

    - by Milaan
    Hi! I have a WHILE loop that loops through a table as long as $i is less than 10. I want this loop to assign the INNERHTML of each cell to a variable. So that I can use it later on to process the information (the loop is because you can choose if it has to take first 3 or first 10 cells). But how do I assign every innerHTML to a different variable? I'm sure there has to be an easy way. But google couldn't get me a good answer. Thanks in advance! Milaan

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  • dynamic variable in c#?

    - by terrani
    Hi, is it possible to use dynamic variable (not sure about naming) in c#? in php, I can do $var_1 = "2"; $var_2 = "this is variable 2"; $test = ${"var_".$var_1}; echo $test; output: this is variable 2; can we do this in c# ?

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  • bash script variable inside variable

    - by user316100
    x=1 c1=string1 c2=string2 c3=string3 echo $c1 string1 I'd like to have the output be string1 by using something like: echo $(c($x)) So later in the script I can increment the value of x and have it output string1, then string2 and string3. Can anyone point me in the right direction?

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  • php sessions in database only writing part of information to the table...

    - by Ronedog
    I'm having difficulty figuring out what's going on here, hoping some one can help me out. I have been using php, mysql storing my session information in the database. The app is only running on localhost, vista. In the php.ini file I commented out the "session.save_handler = files" line and am using a php class to handle the session writes/reads, etc. My login process is this: Submit login credentials via login.php. login.php calls loginprocess.php. loginprocess.php verifies user, and if valid starts a new session and adds data to the session vars, then it redirects to index.php. Here's the problem. the loginprocess.php page has a bunch of session vars that get set like $_SESSION['account_id'] = $account_id; etc. but when I go to index.php and do a var_dump($_SESSION) it just says "array() empty". However, if I do a var_dump($_SESSION) in loginprocess.php, just before the redirection line header("Location: ../index.php"); then it shows all the data in the session variable. If I look in the database where the session information is stored, there is data in the session_id field, created_ts field, and expires field, but the session_data field has nothing inside of it and in the past this is the field where all my session data was stored. How could I be able to var_dump the session in loginprocess.php, but the data not exist in the db table, is it using some kind of caching? I cleared my cookies, etc...but no change. Why is the session_id, being written to the table, but the actual session data is not? Any ideas are appreciated. Thanks.

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  • Access static class variable of parent class in Python

    - by fuenfundachtzig
    I have someting like this class A: __a = 0 def __init__(self): A.__a = A.__a + 1 def a(self): return A.__a class B(A): def __init__(self): # how can I access / modify A.__a here? A.__a = A.__a + 1 # does not work def a(self): return A.__a Can I access the __astatic variable in B? It's possible writing a instead of __a, is this the only way? (I guess the answer might be rather short: yes :)

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  • How to pass a variable as an argument to a command with quotes in powershell

    - by da_ponc
    Hi there, My powershell script takes the following parameter: Param($BackedUpFilePath) The value that is getting passed into my script is: "\123.123.123.123\Backups\Website.7z" I have another variable which is the location I want to extract the file: $WebsiteDeploymentFolder = "C:\example" I am trying to extract the archive with the following command: `7z x $BackedUpFilePath -o$WebsiteDeploymentFolder -aoa I keep getting the following error: Error: cannot find archive The following works but I need $BackedUpFilePath to be dynamic: `7z x '\123.123.123.123\Backups\Website.7z' -o$WebsiteDeploymentFolder -aoa I think I need to pass $BackedUpFilePath to 7z with quotes but they seem to get stripped out no matter what I try. I am in quote hell. Thanks.

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  • global static boolean pointer causes segmentation fault using pthread

    - by asksw0rder
    New to pthread programming, and stuck on this error when working on a C++&C mixed code. What I have done is to call the c code in the thread created by the c++ code. There is a static boolean pointer used in the thread and should got free when the thread finishes. However I noticed that every time when the program processed into the c function, the value of the boolean pointer would be changed and the segmentation fault then happened due to the free(). Detail code is as follows: static bool *is_center; // omit other codes in between ... void streamCluster( PStream* stream) { // some code here ... while(1){ // some code here ... is_center = (bool*)calloc(points.num,sizeof(bool)); // start the parallel thread here. // the c code is invoked in this function. localSearch(&points,kmin, kmax,&kfinal); // parallel free(is_center); } And the function using parallel is as follows (my c code is invoked in each thread): void localSearch( Points* points, long kmin, long kmax, long* kfinal ) { pthread_barrier_t barrier; pthread_t* threads = new pthread_t[nproc]; pkmedian_arg_t* arg = new pkmedian_arg_t[nproc]; pthread_barrier_init(&barrier,NULL,nproc); for( int i = 0; i < nproc; i++ ) { arg[i].points = points; arg[i].kmin = kmin; arg[i].kmax = kmax; arg[i].pid = i; arg[i].kfinal = kfinal; arg[i].barrier = &barrier; pthread_create(threads+i,NULL,localSearchSub,(void*)&arg[i]); } for ( int i = 0; i < nproc; i++) { pthread_join(threads[i],NULL); } delete[] threads; delete[] arg; pthread_barrier_destroy(&barrier); } Finally the function calling my c code: void* localSearchSub(void* arg_) { // omit some initialize code... // my code begin_papi_thread(&eventSet); // Processing k-means, omit codes. // is_center value will be updated correctly // my code end_papi_thread(&eventSet); // when jumping into this, error happens return NULL; } And from gdb, what I have got for the is_center is: Breakpoint 2, localSearchSub (arg_=0x600000000000bc40) at streamcluster.cpp:1711 1711 end_papi_thread(&eventSet); (gdb) s Hardware watchpoint 1: is_center Old value = (bool *) 0x600000000000bba0 New value = (bool *) 0xa93f3 0x400000000000d8d1 in localSearchSub (arg_=0x600000000000bc40) at streamcluster.cpp:1711 1711 end_papi_thread(&eventSet); Any suggestions? Thanks in advance!

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  • Lua: Why changing value on one variable changes value on an other one too?

    - by user474563
    I think that running this code you will get excactly what I mean. I want to register 5 names to a register(people). I loop 5 times and in each loop I have a variable newPerson which is supposed to save all information about a person and then be added to the people register. In this example only the names of the people are being registered for simplicity. The problem is that in the end all people turn to have the same name: "Petra". I playied a bit with this but can't get a reasonable reason for this behaviour. Help appreciated! local people={} local person={ name="Johan", lastName="Seferidis", class="B" } local names={"Markus", "Eva", "Nikol", "Adam", "Petra"} --people to register for i=1, 5 do --register 5 people local newPerson=person local name=names[i] for field=1, 3 do --for each field(name, lastname, class) if field==1 then newPerson["name"]=name end --register name end people[i]=newPerson end print("First person name: " ..people[1]["name"]) print("Second person name: "..people[2]["name"]) print("Third person name: " ..people[3]["name"])

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  • Error while sending email to Multiple Addresses From MYSQL Database using PHP

    - by user1751581
    I am trying to send an email to multiple email addresses which are contained in a database and sorted into a recordset... The recordset has multiple columns, but I only need one: "Email". I know that if I have them in an array I can implode them and separate them by commas, but I'm not sure how I could do that with a recordset column. Anyone know how? BTW I know I have the mail function commented out... The echo is returning null... Heres the code that I tried: $colname_rsAllLeads = "-1"; if (isset($_SESSION['MM_Username'])) { $colname_rsAllLeads = $_SESSION['MM_Username']; } mysql_select_db($database_myBackOfficeConn, $myBackOfficeConn); $query_rsAllLeads = sprintf("SELECT Email FROM Leads WHERE `User` = %s ORDER BY FullName ASC", GetSQLValueString($colname_rsAllLeads, "text")); $rsAllLeads = mysql_query($query_rsAllLeads, $myBackOfficeConn) or die(mysql_error()); $row_rsAllLeads = mysql_fetch_assoc($rsAllLeads); $totalRows_rsAllLeads = mysql_num_rows($rsAllLeads); $editFormAction = $_SERVER['PHP_SELF']; if (isset($_SERVER['QUERY_STRING'])) { $editFormAction .= "?" . htmlentities($_SERVER['QUERY_STRING']); } if ((isset($_POST["MM_insert"])) && ($_POST["MM_insert"] == "form")) { $startcode = $_POST['messagefield']; $replaced = preg_replace( '/\\\\(?="|\')/', '', $startcode ); echo $replaced; $collectedleads = implode(',', $row_rsAllLeads['Email']); echo $collectedleads; /* $to = $collectedleads; $subject = $_POST['subjectfield']; $body = $replaced; $headers = "MIME-Version: 1.0\r\n"; $headers .= "Content-type: text/html; charset=iso-8859-1\r\n"; $headers .= "From: " . $row_rs_CurrentUser['FirstName'] . " " . $row_rs_CurrentUser['LastName'] . " <" . $row_rs_CurrentUser['Email'] . ">"; if (mail($to, $subject, $body, $headers)) { } else { echo("<p>Message delivery failed...</p>"); } */ $insertSQL = sprintf("INSERT INTO PendingEmails (`to`, subject, message) VALUES (%s, %s, %s)", GetSQLValueString($row_rsAllLeads['Email'], "text"), GetSQLValueString($_POST['subjectfield'], "text"), GetSQLValueString($_POST['messagefield'], "text")); mysql_select_db($database_myBackOfficeConn, $myBackOfficeConn); $Result1 = mysql_query($insertSQL, $myBackOfficeConn) or die(mysql_error()); $insertGoTo = "Email Sent.php"; if (isset($_SERVER['QUERY_STRING'])) { $insertGoTo .= (strpos($insertGoTo, '?')) ? "&" : "?"; $insertGoTo .= $_SERVER['QUERY_STRING']; } header(sprintf("Location: %s", $insertGoTo)); } When I use var_dump($row_rsAllLeads['Email']) it outputs string(16) "[email protected]" but I know that there is no error in my SQL query because when I put them in a select box, they all show up...

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