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  • Why does text from Assembly.GetManifestResourceStream() start with three junk characters?

    - by flipdoubt
    I have a SQL file added to my VS.NET 2008 project as an embedded resource. Whenever I use the following code to read the file's content, the string returned always starts with three junk characters and then the text I expect. I assume this has something to do with the Encoding.Default I am using, but that is just a guess. Why does this text keep showing up? Should I just trim off the first three characters or is there a more informed approach? public string GetUpdateRestoreSchemaScript() { var type = GetType(); var a = Assembly.GetAssembly(type); var script = "UpdateRestoreSchema.sql"; var resourceName = String.Concat(type.Namespace, ".", script); using(Stream stream = a.GetManifestResourceStream(resourceName)) { byte[] buffer = new byte[stream.Length]; stream.Read(buffer, 0, buffer.Length); // UPDATE: Should be Encoding.UTF8 return Encoding.Default.GetString(buffer); } } Update: I now know that my code works as expected if I simply change the last line to return a UTF-8 encoded string. It will always be true for this embedded file, but will it always be true? Is there a way to test any buffer to determine its encoding?

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  • What is the recommended coding style for PowerShell?

    - by stej
    Is there any recommended coding style how to write PowerShell scripts? It's not about how to structure the code (how many functions, if to use module, ...). It's about 'how to write the code so that it is readable'. In programming languages there are some recommended coding styles (what to indent, how to indent - spaces/tabs, where to make new line, where to put braces,...), but I haven't seen any suggestion for PowerShell. What I'm interested particularly in: How to write parameters function New-XYZItem ( [string] $ItemName , [scriptblock] $definition ) { ... (I see that it's more like 'V1' syntax) or function New-PSClass { param([string] $ClassName ,[scriptblock] $definition )... or (why to add empty attribute?) function New-PSClass { param([Parameter()][string] $ClassName ,[Parameter()][scriptblock] $definition )... or (other formatting I saw maybe in Jaykul's code) function New-PSClass { param( [Parameter()] [string] $ClassName , [Parameter()] [scriptblock] $definition )... or ..? How to write complex pipeline Get-SomeData -param1 abc -param2 xyz | % { $temp1 = $_ 1..100 | % { Process-somehow $temp1 $_ } } | % { Process-Again $_ } | Sort-Object -desc or (name of cmdlet on new line) Get-SomeData -param1 abc -param2 xyz | % { $temp1 = $_ 1..100 | % { Process-somehow $temp1 $_ } } | % { Process-Again $_ } | Sort-Object -desc | and what if there are -begin -process -end params? how to make it the most readable? Get-SomeData -param1 abc -param2 xyz | % -begin { init } -process { Process-somehow2 ... } -end { Process-somehow3 ... } | % -begin { } .... or Get-SomeData -param1 abc -param2 xyz | % ` -begin { init } ` -process { Process-somehow2 ... } ` -end { Process-somehow3 ... } | % -begin { } .... the indentitation is important here and what element is put on new line as well. I have covered only questions that come on my mind very frequently. There are some others, but I'd like to keep this SO question 'short'. Any other suggestions are welcome.

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  • Perl unpack in list context

    - by drewk
    A common 'Perlism' is generating a list as something to loop over in this form: for($str=~/./g) { print "the next character from \"$str\"=$_\n"; } In this case the global match regex returns a list that is one character in turn from the string $str, and assigns that value to $_ Instead of a regex, split can be used in the same way or 'a'..'z', map, etc. I am investigating unpack to generate a field by field interpretation of a string. I have always found unpack to be less straightforward to the way my brain works, and I have never really dug that deeply into it. As a simple case, I want to generate a list that is one character in each element from a string using unpack (yes -- I know I can do it with split(//,$str) and /./g but I really want to see if unpack can be used this way...) Obviously, I can use a field list for unpack that is unpack("A1" x length($str), $str) but is there some other way that kinda looks like globbing? ie, can I call unpack(some_format,$str) either in list context or in a loop such that unpack will return the next group of character in the format group until $str is exausted? I have read The Perl 5.12 Pack pod and the Perl 5.12 pack tutorial and the Perkmonks tutorial Here is the sample code: #!/usr/bin/perl use warnings; use strict; my $str=join('',('a'..'z', 'A'..'Z')); #the alphabet... $str=~s/(.{1,3})/$1 /g; #...in groups of three print "str=$str\n\n"; for ($str=~/./g) { print "regex: = $_\n"; } for(split(//,$str)) { print "split: \$_=$_\n"; } for(unpack("A1" x length($str), $str)) { print "unpack: \$_=$_\n"; }

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  • How can parallelism affect number of results?

    - by spender
    I have a fairly complex query that looks something like this: create table Items(SomeOtherTableID int,SomeField int) create table SomeOtherTable(Id int,GroupID int) with cte1 as ( select SomeOtherTableID,COUNT(*) SubItemCount from Items t where t.SomeField is not null group by SomeOtherTableID ),cte2 as ( select tc.SomeOtherTableID,ROW_NUMBER() over (partition by a.GroupID order by tc.SubItemCount desc) SubItemRank from Items t inner join SomeOtherTable a on a.Id=t.SomeOtherTableID inner join cte1 tc on tc.SomeOtherTableID=t.SomeOtherTableID where t.SomeField is not null ),cte3 as ( select SomeOtherTableID from cte2 where SubItemRank=1 ) select * from cte3 t1 inner join cte3 t2 on t1.SomeOtherTableID<t2.SomeOtherTableID option (maxdop 1) The query is such that cte3 is filled with 6222 distinct results. In the final select, I am performing a cross join on cte3 with itself, (so that I can compare every value in the table with every other value in the table at a later point). Notice the final line : option (maxdop 1) Apparently, this switches off parallelism. So, with 6222 results rows in cte3, I would expect (6222*6221)/2, or 19353531 results in the subsequent cross joining select, and with the final maxdop line in place, that is indeed the case. However, when I remove the maxdop line, the number of results jumps to 19380454. I have 4 cores on my dev box. WTF? Can anyone explain why this is? Do I need to reconsider previous queries that cross join in this way?

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  • AS3 : RegExp exec method in loop problem

    - by Boun
    Hi everyone, I need some help about RegExp in AS3. I have a simple pattern : patternYouTube = new RegExp ( "v(?:\/|=)([A-Z0-9_-]+)", "gi" ); This pattern is looking for the youTube id video. For example : var tmpUrl : String; var result : Object; var toto : Array = new Array(); toto = [http://www.youtube.com/v/J-vCxmjCm-8&autoplay=1, http://www.youtube.com/v/xFTRnE1WBmU&autoplay=1]; var i : uint; for ( i = 0 ; i < toto.length ; i++) { tmpUrl = toto[i]; result = patternYouTube.exec ( tmpUrl ); if ( result.length != 0 && result != null ) { trace(result); } } When i == 0, it works perfectly. Flash returns me : v/J-vCxmjCm-8,J-vCxmjCm-8 When i == 1, it fails. Flash returns me : null When I revert the two strings in my array such as : toto = [ http://www.youtube.com/v/xFTRnE1WBmU&autoplay=1, http://www.youtube.com/v/J-vCxmjCm-8&autoplay=1 ]; When i == 0, it works perfectly : Flash returns me : xFTRnE1WBmU When i == 1, it fails : Flash returns me : null Do you have any idea about the problem in the loop ?

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  • Auto-sizing and positioning in Flex

    - by Addsy
    I am working on a flex app that uses XML templates to dynamically create DisplayObjects. These templates define different layouts that can be used for each page of content in the app (ie , 2 columns, 3 columns etc etc). The administrator can select from one of these and populate each area with their content. The templates add one of 3 types of DisplayObject - HBox, VBox or a third component - LibraryContentContainer (an mxml component that is defined as part of the app) - which is effectively a canvas element with a TextArea inside. The problem that I am getting is that I need each of these areas to automatically resize to fit the length of the content but don't seem to be able to find an effective way to do so. In the LibraryContentContainer, when the value of the TextArea is set, I am calling .validateNow() on the LibraryContentContainer. I then set the height property on both the TextArea and LibraryContentContainer to match the textHeight property of the TextArea. In the following example, this is the LibraryContentContainer, viewer is the TextArea and the value property of the TextArea is bound to this.__Value. v is the variable containing the content for the textarea this.__Value = v; this.validateNow(); this.viewer.height = this.viewer.textHeight; this.height = this.viewer.height; This works to a degree in that the TextArea grows or shrinks depending on the length of content, but it's still not great - sometimes there are still vertical scrollbars even tho the size of the TextArea has grown. Anyone got any ideas? Thanks Adam

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  • Cannot resolve Dictionary in Unity container

    - by IanR
    Hi, I've just stumbled upon this: within a Unity container, I want to register IDictionary<TK, TV>; assume that it's IDictionary<string, int> _unityContainer = new UnityContainer() .RegisterType<IDictionary<string, int>, Dictionary<string, int>>(); but if I try var d = _unityContainer.Resolve<IDictionary<string, int>>(); it fails to resolve... I get... Microsoft.Practices.Unity.ResolutionFailedException: Microsoft.Practices.Unity.ResolutionFailedException: Resolution of the dependency failed, type = "System.Collections.Generic.IDictionary`2[System.String,System.Int32]", name = "(none)". Exception occurred while: while resolving. Exception is: InvalidOperationException - The type Dictionary`2 has multiple constructors of length 2. Unable to disambiguate. At the time of the exception, the container was: Resolving System.Collections.Generic.Dictionary2[System.String,System.Int32],(none) (mapped from System.Collections.Generic.IDictionary2[System.String,System.Int32], (none)) --- System.InvalidOperationException: The type Dictionary`2 has multiple constructors of length 2. Unable to disambiguate.. So it looks like it has found the Type to resolve (being Dictionary<string, int>) but failed to new it up... How come unity can't resolve this type? If I type IDictionary<string, int> d = new Dictionary<string, int>() that works... any ideas? thanks!

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  • A bug in grpah while using google visualization API on IE

    - by gili
    Hi, i'm using google visulization API to build a line chart grapgh. it works fine on FF and Chrome but i'm having problems on IE7: the problem is that the scailing of the x-axis (string) and y-axis (integer) is all wrong. both axis have the same values for some reason, but naturally those valuse are wrong. my code is the following one: var data = new google.visualization.DataTable(); data.addColumn('string', 'Date'); data.addColumn('number', '??????? ???? ??????'); data.addColumn('number', '??????? ??????'); data.addColumn('number', '??????'); data.addColumn('number', '???????'); data.addColumn('number', '???????'); var n = userRightGuessArray.length; data.addRows(userRightGuessArray.length); data.setCell(0, 0, '?? ?????? ??'); data.setCell(0, 1, 0); data.setCell(0, 2, 0); data.setCell(0, 3, 0); data.setCell(0, 4, 0); data.setCell(0, 5, 0); for(var t = 1 ; t // Create and draw the visualization. var chart = new google.visualization.ImageLineChart(document.getElementById('line_div')); chart.draw(data, {width: 400,legend: 'top'/showValueLabels:false/}); thank you for your help, Gili

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  • How to encrypt an NSString in Objective C with DES in ECB-Mode?

    - by blauesocke
    Hi, I am trying to encrypt an NSString in Objective C on the iPhone. At least I wan't to get a string like "TmsbDaNG64lI8wC6NLhXOGvfu2IjLGuEwc0CzoSHnrs=" when I encode "us=foo;pw=bar;pwAlg=false;" by using this key: "testtest". My problem for now is, that CCCrypt always returns "4300 - Parameter error" and I have no more idea why. This is my code (the result of 5 hours google and try'n'error): NSString *token = @"us=foo;pw=bar;pwAlg=false;"; NSString *key = @"testtest"; const void *vplainText; size_t plainTextBufferSize; plainTextBufferSize = [token length]; vplainText = (const void *) [token UTF8String]; CCCryptorStatus ccStatus; uint8_t *bufferPtr = NULL; size_t bufferPtrSize = 0; size_t *movedBytes; bufferPtrSize = (plainTextBufferSize + kCCBlockSize3DES) & ~(kCCBlockSize3DES - 1); bufferPtr = malloc( bufferPtrSize * sizeof(uint8_t)); memset((void *)bufferPtr, 0x0, bufferPtrSize); // memset((void *) iv, 0x0, (size_t) sizeof(iv)); NSString *initVec = @"init Vec"; const void *vkey = (const void *) [key UTF8String]; const void *vinitVec = (const void *) [initVec UTF8String]; ccStatus = CCCrypt(kCCEncrypt, kCCAlgorithmDES, kCCOptionECBMode, vkey, //"123456789012345678901234", //key kCCKeySizeDES, NULL,// vinitVec, //"init Vec", //iv, vplainText, //"Your Name", //plainText, plainTextBufferSize, (void *)bufferPtr, bufferPtrSize, movedBytes); NSString *result; NSData *myData = [NSData dataWithBytes:(const void *)bufferPtr length:(NSUInteger)movedBytes]; result = [myData base64Encoding];

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  • Spaces and backslashes in Visual Studio build events

    - by gencha
    I have an application that is supposed to aid my project in terms of pre- and post-build event handling. I'm using ndesk.options for command line argument parsing. Which gave me weird results when my project path contains spaces. I thought this was the fault of ndesk.options but I guess my own application is to blame. I call my application as a post-built event like so: build.exe --in="$(ProjectDir)" --out="c:\out\" A simple foreach over args[] displays the following: --in=c:\my project" --out=c:\out" What happened is that the last " in each parameter was treated as if it was escaped. Thus the trailing backslash was removed. And the whole thing is treated as a single argument. Now I thought I was being smart by simply escaping the first " as well, like so: build.exe --in=\"$(ProjectDir)" --out=\"c:\out\" In that case the resulting args[] look like this: --path="c:\my project" --out="c:\out" The trailing backslash in the parameters is still swallowed and the first parameter is now split up. Passing this args[] to ndesk.options will then yield wrong results. How should the right command line look so that the correct elements end up in the correct args[] slots? Alternatively, how is one supposed to parse command line arguments like these with or without ndesk.options? Any suggestion is welcome. Thanks in advance

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  • Drop Down list null value not working for selected text c#?

    - by Tamara JQ
    Hi guys, Basically I have a drop down list which is populated with text and values depending on a selected index of a radio button list. The code is as follows: protected void RBLGender_SelectedIndexChanged(object sender, EventArgs e) { DDLTrous.Items.Clear(); DDLShoes.Items.Clear(); if (RBLGender.SelectedValue.Equals("Male")) { String[] MaleTrouserText = {"[N/A]", "28\"", "30\"", "32\"", "34\"", "36\"", "38\"", "40\"", "42\"", "44\"", "48\""}; String[] MaleTrouserValue = { null, "28\"", "30\"", "32\"", "34\"", "36\"", "38\"", "40\"", "42\"", "44\"", "48\"" }; String[] MaleShoeText = { "[N/A]", "38M", "39M", "40M", "41M", "42M", "43M", "44M", "45M", "46M", "47M" }; String[] MaleShoeValue = { null, "38M", "39M", "40M", "41M", "42M", "43M", "44M", "45M", "46M", "47M" }; for (int i = 0; i < MaleTrouserText.Length; i++) { ListItem MaleList = new ListItem(MaleTrouserText[i], MaleTrouserValue[i]); DDLTrous.Items.Add(MaleList); } for (int i = 0; i < MaleShoeText.Length; i++) { ListItem MaleShoeList = new ListItem(MaleShoeText[i], MaleShoeValue[i]); DDLShoes.Items.Add(MaleShoeList); } } else if (RBLGender.SelectedValue.Equals("Female"))` When the text '[N/A]' is selected I want the value NULL to be inserted into the database. At present when '[N/A]' is selected the value entered into the database is [N/A] does anyone know why? Thanks in advance.

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  • Copy Selective Data from Database to Invoice, Based on Certain Criteria

    - by Scott
    For starters, here is an example of a microsoft excel database I am working with: Month/Address/Name/Description/Amount January/123 Street/Fred/Painting/100 January/456 Avenue/Scott/Flooring/400 January/789 Road/Scott/Plumbing/100 February/123 Street/Fred/Flooring/600 February/246 Lane/Fred/Electrical/300 March/789 Road/Scott/Drywall/150 What I want to be able to do is selectively copy info from this databse to invoices (also excel). The invoice has three columns: Address/Description/Amount. I want to be able to automatically fill the invoices in as the database is filled in (either automatically, or if I have to actually manually run the macro to do it, that might be fine). Each name (Scott, Fred, etc.) will have their own set of 12 invoices for the year. So, e.g., I want to be able to produce a January invoice for all work done for Scott in January, showing the address, the description and the amount, line by line. So every time work on Scott's address(es) is done, the database is filled in, and i want it to "send" that information to the invoice on the next available line, filling in only the Address/Description/Amount columns from the database. Fred's invoice should fill in as any work is done on Fred's addresses. And once the month changes, the next invoice should start filling in. So first I need to filter the data by the month and the name (and there is actually one more column to filter by, but let's keep this example simpler). Then I need to list the remaining data on the invoice, but only certain cells from the rows that are now left. Help anyone?

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  • Phonegap Screenshot plugin in Cordova 2.0.0

    - by ObjectiveJ
    I have set up the screenshot plugin from github, located here: https://github.com/phonegap/phonegap-plugins/tree/master/Android/Screenshot I set it up as instructed and with 1.8.1 of cordova. It worked and the screenshot was saved to the phone. However it fails with cordova 2.0.0. Screenshot.java code: https://github.com/phonegap/phonegap-plugins/blob/master/Android/Screenshot/src/org/apache/cordova/Screenshot.java Screenshot.js code: https://github.com/phonegap/phonegap-plugins/blob/master/Android/Screenshot/www/Screenshot.js Due to the advice of a very clever man called Simon MacDonald, I removed line 31 and 38 from the JS file shown above. However when I try to use the screenshot plugin with cordova 2.0.0 I receive these errors: ERROR: org.json.JSONException: Value undefined of type java.lang.String cannot be converted to JSONArray. Error: Status=8 Message=JSON error file:///android_asset/www/cordova-2.0.0.js: Line 938 : Error: Status=8 Message=JSON error Error: Status=8 Message=JSON error at file:///android_asset_/www/cordova-2.0.0.js:938 line 938 of the cordova.js is: // If error, then display error else { console.log("Error: Status="+v.status+" Message="+v.message); but im almost certain this is a compatibility error. Does anyone know a fix for this, or even a reason. Im abit lost. Any help is appreciated. I call the screenshot.js with this code: function takeScreenShot() { cordovaRef.exec("Screenshot.saveScreenshot"); } Any help massively appreciated.

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  • Enumerating all strings in resx

    - by Erik Hesselink
    We would like to enumerate all strings in a resource file in .NET (resx file). We want this to generate a javascript object containing all these key-value pairs. We do this now for satellite assemblies with code like this (this is VB.NET, but any example code is fine): Dim rm As ResourceManager rm = New ResourceManager([resource name], [your assembly]) Dim Rs As ResourceSet Rs = rm.GetResourceSet(Thread.CurrentThread.CurrentCulture, True, True) For Each Kvp As DictionaryEntry In Rs [Write out Kvp.Key and Kvp.Value] Next However, we haven't found a way to do this for .resx files yet, sadly. How can we enumerate all localization strings in a resx file? UPDATE: Following Dennis Myren's comment and the ideas from here, I built a ResXResourceManager. Now I can do the same with .resx files as I did with the embedded resources. Here is the code. Note that Microsoft made a needed constructor private, so I use reflection to access it. You need full trust when using this. Imports System.Globalization Imports System.Reflection Imports System.Resources Imports System.Windows.Forms Public Class ResXResourceManager Inherits ResourceManager Public Sub New(ByVal BaseName As String, ByVal ResourceDir As String) Me.New(BaseName, ResourceDir, GetType(ResXResourceSet)) End Sub Protected Sub New(ByVal BaseName As String, ByVal ResourceDir As String, ByVal UsingResourceSet As Type) Dim BaseType As Type = Me.GetType().BaseType Dim Flags As BindingFlags = BindingFlags.NonPublic Or BindingFlags.Instance Dim Constructor As ConstructorInfo = BaseType.GetConstructor(Flags, Nothing, New Type() { GetType(String), GetType(String), GetType(Type) }, Nothing) Constructor.Invoke(Me, Flags, Nothing, New Object() { BaseName, ResourceDir, UsingResourceSet }, Nothing) End Sub Protected Overrides Function GetResourceFileName(ByVal culture As CultureInfo) As String Dim FileName As String FileName = MyBase.GetResourceFileName(culture) If FileName IsNot Nothing AndAlso FileName.Length > 10 Then Return FileName.Substring(0, FileName.Length - 10) & ".resx" End If Return Nothing End Function End Class

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  • problem with revalidating a jframe.

    - by John Quesie
    I have this code which should take the radio button input do a little math and display a popup. which it does fine. but then it is supposed to re validate and ask the next question. when i get to the second question, the answer always comes out as the isSelected(true) value no matter which radio button you click on. SO to be clear the first time through it works fin but when the second question comes up, it just takes the default radio button every time. public class EventHandler implements ActionListener { private Main gui; public EventHandler(Main gui){ this.gui = gui; } public void actionPerformed(ActionEvent e){ String answer = ""; double val = 1; //get current answer set String [] anArr = gui.getAnswers(gui.currentStage, gui.currentQuestion); if(e.getSource() == gui.exit){ System.exit(0); } if(e.getSource() == gui.submit){ if(gui.a1.isSelected()){ answer = anArr[0]; val = gui.getScore(1); } if(gui.a2.isSelected()){ answer = anArr[1]; val = gui.getScore(2); } if(gui.a3.isSelected()){ answer = anArr[2]; val = gui.getScore(3); } if(gui.a4.isSelected()){ answer = anArr[3];; val = gui.getScore(4); } JOptionPane.showMessageDialog(null, popupMessage(answer, val), "Your Answer", 1); //compute answer here //figure out what next question is to send gui.moveOn(); gui.setQA(gui.currentStage, gui.currentQuestion); //resets gui gui.goWest(); gui.q.revalidate(); } } public String popupMessage(String ans, double val){ //displays popup after an answer has been choosen gui.computeScore(val); String text = " You Answered " + ans + " Your score is now " + gui.yourScore ; return text; } } public class Main extends JFrame { public JLabel question; public JButton exit; public JButton submit; public JRadioButton a1; public JRadioButton a2; public JRadioButton a3; public JRadioButton a4; public ButtonGroup bg; public double yourScore = 1; public int currentQuestion = 1; public String currentStage = "startup"; JPanel q; public Main(){ setTitle("Ehtics Builder"); setLocation(400,400); setLayout(new BorderLayout(5,5)); setQA("startup", 1); goNorth(); goEast(); goWest(); goSouth(); goCenter(); pack(); setVisible(true); setDefaultCloseOperation(EXIT_ON_CLOSE); } public void goNorth(){ } public void goWest(){ q = new JPanel(); q.setLayout(new GridLayout(0,1)); q.add(question); bg.add(a1); bg.add(a2); bg.add(a3); bg.add(a4); a1.setSelected(true); q.add(a1); q.add(a2); q.add(a3); q.add(a4); add(q, BorderLayout.WEST); System.out.println(); } public void goEast(){ } public void goSouth(){ JPanel p = new JPanel(); p.setLayout(new FlowLayout(FlowLayout.CENTER)); exit = new JButton("Exit"); submit = new JButton("Submit"); p.add(exit); p.add(submit); add(p, BorderLayout.SOUTH); EventHandler myEventHandler = new EventHandler(this); exit.addActionListener(myEventHandler); submit.addActionListener(myEventHandler); } public void goCenter(){ } public static void main(String[] args) { Main open = new Main(); } public String getQuestion(String type, int num){ //reads the questions from a file String question = ""; String filename = ""; String [] ques; num = num - 1; if(type.equals("startup")){ filename = "startup.txt"; }else if(type.equals("small")){ filename = "small.txt"; }else if(type.equals("mid")){ filename = "mid.txt"; }else if(type.equals("large")){ filename = "large.txt"; }else{ question = "error"; return question; } ques = readFile(filename); for(int i = 0;i < ques.length;i++){ if(i == num){ question = ques[i]; } } return question; } public String [] getAnswers(String type, int num){ //reads the answers from a file String filename = ""; String temp = ""; String [] group; String [] ans; num = num - 1; if(type.equals("startup")){ filename = "startupA.txt"; }else if(type.equals("small")){ filename = "smallA.txt"; }else if(type.equals("mid")){ filename = "midA.txt"; }else if(type.equals("large")){ filename = "largeA.txt"; }else{ System.out.println("Error"); } group = readFile(filename); for(int i = 0;i < group.length;i++){ if(i == num){ temp = group[i]; } } ans = temp.split("-"); return ans; } public String [] getValues(String type, int num){ //reads the answers from a file String filename = ""; String temp = ""; String [] group; String [] vals; num = num - 1; if(type.equals("startup")){ filename = "startupV.txt"; }else if(type.equals("small")){ filename = "smallV.txt"; }else if(type.equals("mid")){ filename = "midV.txt"; }else if(type.equals("large")){ filename = "largeV.txt"; }else{ System.out.println("Error"); } group = readFile(filename); for(int i = 0;i < group.length;i++){ if(i == num){ temp = group[i]; } } vals = temp.split("-"); return vals; } public String [] readFile(String filename){ //reads the contentes of a file, for getQuestions and getAnswers String text = ""; int i = -1; FileReader in = null; File f = new File(filename); try{ in = new FileReader(f); }catch(FileNotFoundException e){ System.out.println("file does not exist"); } try{ while((i = in.read()) != -1) text += ((char)i); }catch(IOException e){ System.out.println("Error reading file"); } try{ in.close(); }catch(IOException e){ System.out.println("Error reading file"); } String [] questions = text.split(":"); return questions; } public void computeScore(double val){ //calculates you score times the value of your answer yourScore = val * yourScore; } public double getScore(int aNum){ //gets the score of an answer, stage and q number is already set in the class aNum = aNum - 1; double val = 0; double [] valArr = new double[4]; for(int i = 0;i < getValues(currentStage, currentQuestion).length;i++){ val = Double.parseDouble(getValues(currentStage, currentQuestion)[i]); valArr[i] = val; } if(aNum == 0){ val = valArr[0]; } if(aNum == 1){ val = valArr[1]; } if(aNum == 2){ val = valArr[2]; } if(aNum == 3){ val = valArr[3]; } // use current stage and questiion and trhe aNum to get the value for that answer return val; } public void nextQuestion(int num){ //sets next question to use currentQuestion = num; } public void nextStage(String sta){ // sets next stage to use currentStage = sta; } public void moveOn(){ // uses the score and current question and stage to determine wher to go next and what stage to use next nextQuestion(2); nextStage("startup"); } public void setQA(String level, int num){ String [] arr = getAnswers(level, num); question = new JLabel(getQuestion(level, num)); bg = new ButtonGroup(); a1 = new JRadioButton(arr[0]); a2 = new JRadioButton(arr[1]); a3 = new JRadioButton(arr[2]); a4 = new JRadioButton(arr[3]); } }

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  • ASP.NET MVC - Javascript array always passed to controller as null

    - by Xuan Vu
    I'm having some problem with passing a javascript array to the controller. I have several checkboxes on my View, when a checkbox is checked, its ID will be saved to an array and then I need to use that array in the controller. Here are the code: VIEW: var selectedSearchUsers = new Array(); $(document).ready(function () { $("#userSearch").click(function () { selectedSearchUsers.length = 0; ShowLoading(); $.ajax({ type: "POST", url: '/manage/searchusers', dataType: "json", data: $("#userSearchForm").serialize(), success: function (result) { UserSearchSuccess(result); }, cache: false, complete: function () { HideLoading(); } }); }); $(".userSearchOption").live("change", function () { var box = $(this); var id = box.attr("dataId"); var checked = box.attr("checked"); if (checked) { selectedSearchUsers.push(id); } else { selectedSearchUsers.splice(selectedSearchUsers.indexOf(id), 1); } }); $("#Send").click(function () { var postUserIDs = { values: selectedSearchUsers }; ShowLoading(); $.post("/Manage/ComposeMessage", postUserIDs, function (data) { }, "json"); }); }); When the "Send" button is clicked, I want to pass the selectedSearchUsers to the "ComposeMessage" action. Here is the Action code: public JsonResult ComposeMessage(List values) { //int count = selectedSearchUsers.Length; string count = values.Count.ToString(); return Json(count); } However, the List values is always null. Any idea why? Thank you very much.

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  • 'Hot code replace' not working -- Eclipse doesn't change any code on JBoss

    - by Bernhard V
    Hello, fellow visitors! I'm currently experiencing a problem with 'hot code replace' not working on Eclipse Galileo and JBoss 4.2.3. Among other applications I'm running an exploded Java WAR on my local JBoss. The project from which it is build is managed by Maven. I build the project using the Maven goal war:exploded and then I copy that directory to JBoss with an ANT script. When I'm now running the application and set a breakpoint anywhere in the code, Eclipse properly halts at that line in the debug mode. But when I'm making a change to the source file and save it, Eclipse doesn't apply this change to the JBoss. For example, when I make a normal code line into a comment, the debugger still steps over this comment as if it was regular Java code. Or when I remove a line, the debugger seems to get out of sync with the file and starts stepping over parenthesis. But I'm not getting any 'hot code replace error'-messages either. It seems to me that Eclipse applies the changes to the source files, but doesn't apply it to the JBoss. Are there any special preferences that have to be turned on in order to make hot code replace work? Or are there any mistakes in how I build and deploy the application to the JBoss? I'd appreciate your help very much. Thank you. Bernhard V

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  • jQuery Validation Plugin: Validating Checkboxes with Different Names

    - by Michael
    I have a set of 4 checkboxes, all with different names, and require that at least 1 is checked. I know there are a few posts on here already trying to answer this question. The solution that seems to be most logical to me is the answer posted on Question 1734840, but I can't seem to get it working! What's wrong with my code? Or any other new coding ideas to get this working? I have set the class on all of them to 'require-one'. My jQuery code is $(document).ready(function(){ $("#itemForm").validate({ highlight: function(element, errorClass, validClass) { $(element).addClass(errorClass).removeClass(validClass); $(element.form).find("label[for=" + element.name + "]") .addClass("radioerror"); }, unhighlight: function(element, errorClass, validClass) { $(element).removeClass(errorClass).addClass(validClass); $(element.form).find("label[for=" + element.name + "]") .removeClass("radioerror"); }, rules: { 'require-one': { required : { depends: function(element) { var allBoxes = $('.require-one'); if (allBoxes.filter(':checked').length == 0) { if (allBoxes.eq(element).length != 0) { return true; } } return false; } } } , }, errorPlacement: function(error, element) { if ( element.is("#other_descrip") ) error.appendTo("#othererror" ); if ( element.is("#itemlist") ) error.appendTo("#itemerror" ); } }); });

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  • Plot in GNU PLOT

    - by guddi
    I have to plot many lines in GNU PLOT.No problem with the X axis. The problem that I am facing is that most of the plotted lines are at yscale [0-0.05] ,few at range 60-70 and rest at 600-700. These numbers correspond to the y axis scale values. But after I plot I can see only 3 sets of lines all messed up. There is no clearity between the lines. Line at 0 and the line at 0.003 look like one single line. If I set yrange[0:0.05], the lines between this range are clearly vissible. But I want all the lines in the same graph. I have heard of breaking axis's and multi plotting..Can they be useful? how to implement them. Anyone pls help me. Below is the sript set terminal png size 1300,1200 enhanced font 'Verdana,20 set output ' output .png’ set key font 'Verdana,16' set key bottom outside set yrange[500:1000] set xtics("25k" 25000,"50k" 50000,"75k" 75000,"100k" 100000) set grid set title 'Performance Metrics' set ylabel 'Metrices' set xlabel 'FES' plot ' input ' using 1:2 title ' A' with linespoints linewidth 4, ' input ' using 1:3 title B'with linespoints linewidth 4, 'input ' using 1:4 title ' c' with linespoints linewidth 4, 'input ' using 1:5 title 'D' with linespoints linewidth 4, ' input ' using 1:6 title 'E' with linespoints linewidth 4, ' input ' using 1:7 title 'F' with linespoints linewidth 4, ' input ' using 1:8 title 'G' with linespoints linewidth 4, ' input ' using 1:9 title ' H ' with linespoints linewidth 4, ' input ' using 1:10 title ' I' Metric ' with linespoints linewidth 4 set output set terminal windows input.dat is something like this: 25 0.002 0.05 899 455 444 0.08 0.00004 900 700 0.003 This way i have other rows. I have shown only the first one

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  • nested iterator errors

    - by Sean
    //arrayList.h #include<iostream> #include<sstream> #include<string> #include<algorithm> #include<iterator> using namespace std; template<class T> class arrayList{ public: // constructor, copy constructor and destructor arrayList(int initialCapacity = 10); arrayList(const arrayList<T>&); ~arrayList() { delete[] element; } // ADT methods bool empty() const { return listSize == 0; } int size() const { return listSize; } T& get(int theIndex) const; int indexOf(const T& theElement) const; void erase(int theIndex); void insert(int theIndex, const T& theElement); void output(ostream& out) const; // additional method int capacity() const { return arrayLength; } void reverse(); // new defined // iterators to start and end of list class iterator; class seamlessPointer; seamlessPointer begin() { return seamlessPointer(element); } seamlessPointer end() { return seamlessPointer(element + listSize); } // iterator for arrayList class iterator { public: // typedefs required by C++ for a bidirectional iterator typedef bidirectional_iterator_tag iterator_category; typedef T value_type; typedef ptrdiff_t difference_type; typedef T* pointer; typedef T& reference; // constructor iterator(T* thePosition = 0) { position = thePosition; } // dereferencing operators T& operator*() const { return *position; } T* operator->() const { return position; } // increment iterator& operator++() // preincrement { ++position; return *this; } iterator operator++(int) // postincrement { iterator old = *this; ++position; return old; } // decrement iterator& operator--() // predecrement { --position; return *this; } iterator operator--(int) // postdecrement { iterator old = *this; --position; return old; } // equality testing bool operator!=(const iterator right) const { return position != right.position; } bool operator==(const iterator right) const { return position == right.position; } protected: T* position; }; // end of iterator class class seamlessPointer: public arrayList<T>::iterator { // constructor seamlessPointer(T *thePosition) { iterator::position = thePosition; } //arithmetic operators seamlessPointer & operator+(int n) { arrayList<T>::iterator::position += n; return *this; } seamlessPointer & operator+=(int n) { arrayList<T>::iterator::position += n; return *this; } seamlessPointer & operator-(int n) { arrayList<T>::iterator::position -= n; return *this; } seamlessPointer & operator-=(int n) { arrayList<T>::iterator::position -= n; return *this; } T& operator[](int n) { return arrayList<T>::iterator::position[n]; } bool operator<(seamlessPointer &rhs) { if(int(arrayList<T>::iterator::position - rhs.position) < 0) return true; return false; } bool operator<=(seamlessPointer & rhs) { if (int(arrayList<T>::iterator::position - rhs.position) <= 0) return true; return false; } bool operator >(seamlessPointer & rhs) { if (int(arrayList<T>::iterator::position - rhs.position) > 0) return true; return false; } bool operator >=(seamlessPointer &rhs) { if (int(arrayList<T>::iterator::position - rhs.position) >= 0) return true; return false; } }; protected: // additional members of arrayList void checkIndex(int theIndex) const; // throw illegalIndex if theIndex invalid T* element; // 1D array to hold list elements int arrayLength; // capacity of the 1D array int listSize; // number of elements in list }; #endif //main.cpp #include<iostream> #include"arrayList.h" #include<fstream> #include<algorithm> #include<string> using namespace std; bool compare_nocase (string first, string second) { unsigned int i=0; while ( (i<first.length()) && (i<second.length()) ) { if (tolower(first[i])<tolower(second[i])) return true; else if (tolower(first[i])>tolower(second[i])) return false; ++i; } if (first.length()<second.length()) return true; else return false; } int main() { ifstream fin; ofstream fout; string str; arrayList<string> dict; fin.open("dictionary"); if (!fin.good()) { cout << "Unable to open file" << endl; return 1; } int k=0; while(getline(fin,str)) { dict.insert(k,str); // cout<<dict.get(k)<<endl; k++; } //sort the array sort(dict.begin, dict.end(),compare_nocase); fout.open("sortedDictionary"); if (!fout.good()) { cout << "Cannot create file" << endl; return 1; } dict.output(fout); fin.close(); return 0; } Two errors are: ..\src\test.cpp: In function 'int main()': ..\src\test.cpp:50:44: error: no matching function for call to 'sort(<unresolved overloaded function type>, arrayList<std::basic_string<char> >::seamlessPointer, bool (&)(std::string, std::string))' ..\src\/arrayList.h: In member function 'arrayList<T>::seamlessPointer arrayList<T>::end() [with T = std::basic_string<char>]': ..\src\test.cpp:50:28: instantiated from here ..\src\/arrayList.h:114:3: error: 'arrayList<T>::seamlessPointer::seamlessPointer(T*) [with T = std::basic_string<char>]' is private ..\src\/arrayList.h:49:44: error: within this context Why do I get these errors? Update I add public: in the seamlessPointer class and change begin to begin() Then I got the following errors: ..\hw3prob2.cpp:50:46: instantiated from here c:\wascana\mingw\bin\../lib/gcc/mingw32/4.5.0/include/c++/bits/stl_algo.h:5250:4: error: no match for 'operator-' in '__last - __first' ..\/arrayList.h:129:21: note: candidate is: arrayList<T>::seamlessPointer& arrayList<T>::seamlessPointer::operator-(int) [with T = std::basic_string<char>, arrayList<T>::seamlessPointer = arrayList<std::basic_string<char> >::seamlessPointer] c:\wascana\mingw\bin\../lib/gcc/mingw32/4.5.0/include/c++/bits/stl_algo.h:5252:4: instantiated from 'void std::sort(_RAIter, _RAIter, _Compare) [with _RAIter = arrayList<std::basic_string<char> >::seamlessPointer, _Compare = bool (*)(std::basic_string<char>, std::basic_string<char>)]' ..\hw3prob2.cpp:50:46: instantiated from here c:\wascana\mingw\bin\../lib/gcc/mingw32/4.5.0/include/c++/bits/stl_algo.h:2190:7: error: no match for 'operator-' in '__last - __first' ..\/arrayList.h:129:21: note: candidate is: arrayList<T>::seamlessPointer& arrayList<T>::seamlessPointer::operator-(int) [with T = std::basic_string<char>, arrayList<T>::seamlessPointer = arrayList<std::basic_string<char> >::seamlessPointer] Then I add operator -() in the seamlessPointer class ptrdiff_t operator -(seamlessPointer &rhs) { return (arrayList<T>::iterator::position - rhs.position); } Then I compile successfully. But when I run it, I found memeory can not read error. I debug and step into and found the error happens in stl function template<typename _RandomAccessIterator, typename _Distance, typename _Tp, typename _Compare> void __adjust_heap(_RandomAccessIterator __first, _Distance __holeIndex, _Distance __len, _Tp __value, _Compare __comp) { const _Distance __topIndex = __holeIndex; _Distance __secondChild = __holeIndex; while (__secondChild < (__len - 1) / 2) { __secondChild = 2 * (__secondChild + 1); if (__comp(*(__first + __secondChild), *(__first + (__secondChild - 1)))) __secondChild--; *(__first + __holeIndex) = _GLIBCXX_MOVE(*(__first + __secondChild)); ////// stop here __holeIndex = __secondChild; } Of course, there must be something wrong with the customized operators of iterator. Does anyone know the possible reason? Thank you.

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  • Add incremental numbers at the end of a string in a loop in Javascript.

    - by Kyle Sevenoaks
    This Javascript is part of a Foreach loop. var stickytooltip={ tooltipoffsets: [20, -30], //additional x and y offset from mouse cursor for tooltips fadeinspeed: 200, //duration of fade effect in milliseconds rightclickstick: false, //sticky tooltip when user right clicks over the triggering element (apart from pressing "s" key) ? stickybordercolors: ["#0a5692", "#0a5692"], //border color of tooltip depending on sticky state stickynotice: ["Press \"s\"", "or right click", "to sticky box"], //customize tooltip status message stickynotice2: "Click outside this box to hide it", //customize tooltip status message //***** NO NEED TO EDIT BEYOND HERE isdocked: false, positiontooltip:function($, $tooltip, e){ var x=e.pageX+this.tooltipoffsets[0], y=e.pageY+this.tooltipoffsets[1] var tipw=$tooltip.outerWidth(), tiph=$tooltip.outerHeight(), x=(x+tipw>$(document).scrollLeft()+$(window).width())? x-tipw-(stickytooltip.tooltipoffsets[0]*2) : x y=(y+tiph>$(document).scrollTop()+$(window).height())? $(document).scrollTop()+$(window).height()-tiph-10 : y $tooltip.css({left:x, top:y}) }, showbox:function($, $tooltip, e){ $tooltip.fadeIn(this.fadeinspeed) this.positiontooltip($, $tooltip, e) }, hidebox:function($, $tooltip){ if (!this.isdocked){ $tooltip.stop(false, true).hide() $tooltip.css({borderColor:'black'}).find('.stickystatus:eq(0)').css({background:this.stickybordercolors[0]}).html(this.stickynotice) } }, docktooltip:function($, $tooltip, e){ this.isdocked=true $tooltip.css({borderColor:'darkred'}).find('.stickystatus:eq(0)').css({background:this.stickybordercolors[1]}).html(this.stickynotice) }, init:function(targetselector, tipid){ jQuery(document).ready(function($){ var $targets=$(targetselector) var $tooltip=$('#'+tipid).appendTo(document.body) if ($targets.length==0) return var $alltips=$tooltip.find('div.atip') if (!stickytooltip.rightclickstick) stickytooltip.stickynotice[1]='' stickytooltip.stickynotice=stickytooltip.stickynotice.join(' ') stickytooltip.hidebox($, $tooltip) $targets.bind('mouseenter', function(e){ $alltips.hide().filter('#'+$(this).attr('data-tooltip')).show() stickytooltip.showbox($, $tooltip, e) }) $targets.bind('mouseleave', function(e){ stickytooltip.hidebox($, $tooltip) }) $targets.bind('mousemove', function(e){ if (!stickytooltip.isdocked){ stickytooltip.positiontooltip($, $tooltip, e) } }) $tooltip.bind("mouseenter", function(){ stickytooltip.hidebox($, $tooltip) }) $tooltip.bind("click", function(e){ e.stopPropagation() }) $(this).bind("click", function(e){ if (e.button==0){ stickytooltip.isdocked=false stickytooltip.hidebox($, $tooltip) } }) $(this).bind("contextmenu", function(e){ if (stickytooltip.rightclickstick && $(e.target).parents().andSelf().filter(targetselector).length==1){ //if oncontextmenu over a target element stickytooltip.docktooltip($, $tooltip, e) return false } }) $(this).bind('keypress', function(e){ var keyunicode=e.charCode || e.keyCode if (keyunicode==115){ //if "s" key was pressed stickytooltip.docktooltip($, $tooltip, e) } }) }) //end dom ready } } //stickytooltip.init("targetElementSelector", "tooltipcontainer") stickytooltip.init("*[data-tooltip]", "mystickytooltip") I need to just add some code to the end of "mystickytooltip" to add 1, 2, 3, 4 each time it loops. My JS-foo is nonexistant, please help :)

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  • Prolog: How to make three lists the same lenght (by adding leading zeros)

    - by sixtyfootersdude
    I am writing a prolog program to solve a problem. The problem takes three lists as input: solve( [L|Lr] , [R|Rr] , [S|Sr] ) :- Unfortunately the lists all need to be equal length for the program to work. So these work: ?- solve( [A, B, C, D] , [1, 3, 5, 6], [E, F, G, H]). ?- solve( [1] , [2], [3]). But these do not: ?- solve( [A, B, C, D], [1], [B, I, T] ). ?- solve( [A], [1, 2], [4, 5]). What I would like to do is write a predicate(?) to pad the smaller lists with leading zeros. So: solve( [A, B, C, D], [1], [B, I, T] ) would become: solve( [A, B, C, D], [0, 0, 0, 1], [0, B, I, T] ) Any points on how to accomplish this would be awesome. I am from a functional background so I am struggling. Is there a way tell the length of a list? I think I could do that recursively, but it seems like a pain. Thanks

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  • Sort ArrayList alphabetically

    - by relyt
    I'm trying to find all permutations of a string and sort them alphabetically. This is what I have so far: public class permutations { public static void main(String args[]) { Scanner s = new Scanner(System.in); System.out.print("Enter String: "); String chars = s.next(); findPerms("", chars); } public static void findPerms(String mystr, String chars) { List<String> permsList = new ArrayList<String>(); if (chars.length() <= 1) permsList.add(mystr + chars); //System.out.print(mystr + chars + " "); else for (int i = 0; i < chars.length(); i++) { String newString = chars.substring(0, i) + chars.substring(i + 1); findPerms(mystr + chars.charAt(i), newString); } Collections.sort(permsList); for(int i=0; i<permsList.size(); i++) { System.out.print(permsList.get(i) + " "); } } } IF I enter a string "toys" I get: toys tosy tyos tyso tsoy tsyo otys otsy oyts oyst osty osyt ytos ytso yots yost ysto ysot stoy styo soty soyt syto syot What am I doing wrong. How can I get them in alphabetical order? Thanks!

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  • Why is setting HTML5's CanvasPixelArray values ridiculously slow and how can I do it faster?

    - by Nixuz
    I am trying to do some dynamic visual effects using the HTML 5 canvas' pixel manipulation, but I am running into a problem where setting pixels in the CanvasPixelArray is ridiculously slow. For example if I have code like: imageData = ctx.getImageData(0, 0, 500, 500); for (var i = 0; i < imageData.length; i += 4){ imageData.data[i] = buffer[i]; imageData.data[i + 1] = buffer[i + 1]; imageData.data[i + 2] = buffer[i + 2]; } ctx.putImageData(imageData, 0, 0); Profiling with Chrome reveals, it runs 44% slower than the following code where CanvasPixelArray is not used. tempArray = new Array(500 * 500 * 4); imageData = ctx.getImageData(0, 0, 500, 500); for (var i = 0; i < imageData.length; i += 4){ tempArray[i] = buffer[i]; tempArray[i + 1] = buffer[i + 1]; tempArray[i + 2] = buffer[i + 2]; } ctx.putImageData(imageData, 0, 0); My guess is that the reason for this slowdown is due to the conversion between the Javascript doubles and the internal unsigned 8bit integers, used by the CanvasPixelArray. Is this guess correct? Is there anyway to reduce the time spent setting values in the CanvasPixelArray?

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  • Jasper Reports and iReport issue

    - by William
    I am having an issue with JasperReports I can not solve. I am using Eclipse, OpenReports 3.2 and IReport 3.7 The issue I am having is that the report does nothing. When I preview the report in IReport I can at least get a "Document has no pages" message but when I try to open it using OpenReports it doesn't do anything. I get the open reports header and the copyright message but nothing between them. I was able to track it down to line 150 in ReportRunAction.java in OpenReports. That line is: jasperPrint = jasperEngine.fillReport(reportInput); At least that is the line the page dies on. I can't swear that the issue isn't that parameter. Through looking around all I have been able to find is something about how the report needs to be compiled with the same version of the jasperreports.jar that OpenReports uses. I have no idea how to tell if/what version of jasper reports is being bundled into the .jasper file though. Is that my problem? If so how do I tell/set the version of the jar that gets bundled? If not; help!

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