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  • Joda time : convert string to LocatDate

    - by bsreekanth
    Hello, How to specify the format string to convert the date alone from string. In my case, only the date part is relevant Constructing it as DateTime fails String dateString = "2009-04-17"; DateTimeFormatter formatter = DateTimeFormat.forPattern("yyyy-MM-dd"); DateTime dateTime = formatter.parseDateTime(dateString); with error java.lang.IllegalArgumentException: Invalid format: "2011-04-17" is too short Probably because I should use LocalTime instead. But, I do not see any formatter for LocalTime . What is the best way to convert String dateString = "2009-04-17"; into LocalDate (or something else if that is not the right representation) thanks...

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  • cannot convert from 'cli::array<Type> ^' to 'cli::array<Type> ^[]'

    - by user1576628
    I'm pretty new to C++/CLI and I am trying to convert a System::String to a System::Char array. Here's what I have so far: private: System::Void modeToolStripMenuItem_Click(System::Object^ sender, System::EventArgs^ e) { Mode frmMode; if(frmMode.ShowDialog() == System::Windows::Forms::DialogResult::OK){ array <Char>^ load [] = gcnew array<Char>(txtbxName->Text->ToCharArray()); } } txtbxName is a textbox inside a the form. Supposedly, this should work, but I get the compiler error: error C2440: cannot convert from 'cli::array<Type> ^' to 'cli::array<Type> ^[]' for the fourth line of the snippet.

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  • processing: convert int to byte

    - by inspectorG4dget
    Hello SO, I'm trying to convert an int into a byte in Processing 1.0.9. This is the snippet of code that I have been working with: byte xByte = byte(mouseX); byte yByte = byte(mouseY); byte setFirst = byte(128); byte resetFirst = byte(127); xByte = xByte | setFirst; yByte = yByte >> 1; port.write(xByte); port.write(yByte); According to the Processing API, this should work, but I keep getting an error at xByte = xByte | setFirst; that says: cannot convert from int to byte I have tried converting 128 and 127 to they respective hex values (0x80 and 0x7F), but that didn't work either. I have tried everything mentioned in the API as well as some other blogs, but I feel like I'm missing something very trivial. I would appreciate any help. Thank you.

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  • TypeError: can't convert String into Integer

    - by demas
    I have code: class Scene def initialize(number) @number = number end attr_reader :number end scenes = [Scene.new("one"), Scene.new("one"), Scene.new("two"), Scene.new("one")] groups = scenes.inject({}) do |new_hash, scene| new_hash[scene.number] = [] if new_hash[scene.number].nil? new_hash[scene.number] << scene end When I'm lauching it I get error: freq.rb:11:in `[]': can't convert String into Integer (TypeError) from freq.rb:11:in `block in <main>' from freq.rb:10:in `each' from freq.rb:10:in `inject' from freq.rb:10:in `<main>' If I change scenes to: scenes = [Scene.new(1), Scene.new(1), Scene.new(2), Scene.new(1)] the problem dissapear. Why I get error message in the first case? Why Ruby decide to convert scene.number from String to Integer? And one additional question about the 'inject' method. When Ruby initialize the 'new_hash' variable and how can Ruby know the type of this variable?

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  • When will the ValueConverter's Convert method be called in wpf

    - by sudarsanyes
    I have an ObservableCollection bound to a list box and a boolean property bound to a button. I then defined two converters, one that operates on the collection and the other operates on the boolean property. Whenever I modify the boolean property, the converter's Convert method is called, where as the same is not called if I modify the observable collection. What am I missing?? Snippets for your reference, xaml snipet, <Window.Resources> <local:WrapPanelWidthConverter x:Key="WrapPanelWidthConverter" /> <local:StateToColorConverter x:Key="StateToColorConverter" /> </Window.Resources> <StackPanel> <ListBox x:Name="NamesListBox" ItemsSource="{Binding Path=Names}"> <ListBox.ItemsPanel> <ItemsPanelTemplate> <WrapPanel x:Name="ItemWrapPanel" Width="500" Background="Gray"> <WrapPanel.RenderTransform> <TranslateTransform x:Name="WrapPanelTranslatation" X="0" /> </WrapPanel.RenderTransform> <WrapPanel.Triggers> <EventTrigger RoutedEvent="WrapPanel.Loaded"> <BeginStoryboard> <Storyboard> <DoubleAnimation Storyboard.TargetName="WrapPanelTranslatation" Storyboard.TargetProperty="X" To="{Binding Path=Names,Converter={StaticResource WrapPanelWidthConverter}}" From="525" Duration="0:0:2" RepeatBehavior="100" /> </Storyboard> </BeginStoryboard> </EventTrigger> </WrapPanel.Triggers> </WrapPanel> </ItemsPanelTemplate> </ListBox.ItemsPanel> <ListBox.ItemTemplate> <DataTemplate> <Grid> <Label Content="{Binding}" Width="50" Background="LightGray" /> </Grid> </DataTemplate> </ListBox.ItemTemplate> </ListBox> <Button Content="{Binding Path=State}" Background="{Binding Path=State, Converter={StaticResource StateToColorConverter}}" Width="100" Height="100" Click="Button_Click" /> </StackPanel> code behind snippet public class WrapPanelWidthConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { ObservableCollection<string> aNames = value as ObservableCollection<string>; return -(aNames.Count * 50); } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } } public class StateToColorConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { bool aState = (bool)value; if (aState) return Brushes.Green; else return Brushes.Red; } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } }

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  • Joda time : How to convert String to LocalDate?

    - by bsreekanth
    Hello, How to specify the format string to convert the date alone from string. In my case, only the date part is relevant Constructing it as DateTime fails: String dateString = "2009-04-17"; DateTimeFormatter formatter = DateTimeFormat.forPattern("yyyy-MM-dd"); DateTime dateTime = formatter.parseDateTime(dateString); with error java.lang.IllegalArgumentException: Invalid format: "2011-04-17" is too short Probably because I should use LocalDate instead. But, I do not see any formatter for LocalDate . What is the best way to convert String dateString = "2009-04-17"; into LocalDate (or something else if that is not the right representation) thanks...

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  • Convert var to DataTable

    - by cre-johnny07
    I have var item which I want to convert in to a Datatable. How can I do this. var items = (from myObj in this.Context.Orders group myObj by myObj.OrderDate.ToString("yyyy-mm") into ymGroup select new { Date = ymGroup.Key, Start = ymGroup.Min(c => c.OrderId), End = ymGroup.Max(c => c.OrderId) }); I need to convert the items into a DataTable. I don't want to use any foreach loop. How can I do this.?

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  • Convert a Mysql database from latin to UTF-8

    - by Matthieu
    I am converting a website from ISO to UTF-8, so I need to convert the Mysql database too. On internet, I read various solutions, I don't know wich one to choose. Do I really need to convert my varchar columns to binary, then to utf8 like that : ALTER TABLE t MODIFY col BINARY(150); ALTER TABLE t MODIFY col CHAR(150) CHARACTER SET utf8; This is long to do that for each column, of each table, of each database. I have 10 database, wich 20 tables each, wich around 2 - 3 varchar colums (2 queries each column), this gives me around 1000 queries to write ! How come ? How to do ?

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  • Convert ieee 754 float to hex with c - printf

    - by Michael
    Ideally the following code would take a float in IEEE 754 representation and convert it into hexadecimal void convert() //gets the float input from user and turns it into hexadecimal { float f; printf("Enter float: "); scanf("%f", &f); printf("hex is %x", f); } I'm not too sure what's going wrong. It's converting the number into a hexadecimal number, but a very wrong one. 123.1443 gives 40000000 43.3 gives 60000000 8 gives 0 so it's doing something, I'm just not too sure what. Help would be appreciated

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  • wkhtmltopdf - cannot convert local file

    - by user522962
    I just downloaded version 10.0 for opensuse v. 11.3. I can convert a webpage (ie www.google.com) using it but cannot convert a local file. I grant all permissions on the file (& i've even tried running under sudo to no avail). This is the error: "Loading pages (1/6) Error: Failed loading page file:///file.html". The file exists but wkhtmltopdf refuses to load it. I even tried version 9.9 w/ the same result What am I missing?

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  • Programmatically convert WAV

    - by kaykun
    Hi, I'm writing a file compressor utility in C++ that I want support for PCM WAV files, however I want to keep it in PCM encoding and just convert it to a lower sample rate and change it from stereo to mono if applicable to yield a lower file size. I understand the WAV file header, however I have no experience or knowledge of the actual sound data works. So my question is, would it be relatively easy to programmatically manipulate the "data" sub-chunk in a WAV file to convert it to another sample rate and change the channel number, or would I be much better off using an existing library for it? If it is, then how would it be done? Thanks in advance.

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  • Convert CString array to System::String

    - by Anu
    Hi, I want to convert CString array to managed code ot send it to C#. For normal CString i did like this, CString menu = "MENU"; String ^ msg = gcnew String(menu); Globals1::gwtoolbar->Add(msg); But now i want to send array of string.i dont know how to do for CString array. When i gave like this it shows error CString menu[10]; String[] ^ msg = gcnew String(menu); How can i convert it?

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  • A mysterious compilation error: cannot convert from 'const boost::shared_ptr<T>' to 'const boost::shared_ptr<T>'

    - by Stephane Rolland
    I wanted to protect the access to a log file that I use for multithreaded logging with boostlog library. I tried this stream class class ThreadSafeStream { public: template <typename TInput> const ThreadSafeStream& operator<< (const TInput &tInput) const { // some thread safe file access return *this; } }; using it this way (text_sink is a boostlog object): //... m_spSink.reset(new text_sink); text_sink::locked_backend_ptr pBackend = m_spSink->locked_backend(); const boost::shared_ptr< ThreadSafeStream >& spFileStream = boost::make_shared<ThreadSafeStream>(); pBackend->add_stream(spFileStream); // this causes the compilation error and I get this mysterious error: cannot convert from 'const boost::shared_ptr<T>' to 'const boost::shared_ptr<T>' the whole compile error: Log.cpp(79): error C2664: 'boost::log2_mt_nt5::sinks::basic_text_ostream_backend<CharT>::add_stream' : cannot convert parameter 1 from 'const boost::shared_ptr<T>' to 'const boost::shared_ptr<T> &' 1> with 1> [ 1> CharT=char 1> ] 1> and 1> [ 1> T=ThreadSafeStream 1> ] 1> and 1> [ 1> T=std::basic_ostream<char,std::char_traits<char>> 1> ] 1> Reason: cannot convert from 'const boost::shared_ptr<T>' to 'const boost::shared_ptr<T>' 1> with 1> [ 1> T=ThreadSafeStream 1> ] 1> and 1> [ 1> T=std::basic_ostream<char,std::char_traits<char>> 1> ] 1> No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called I suspect that I am not well defining the operator<<()... but I don't find what is wrong.

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  • Convert methods from Java-actionscript to ObjectiveC

    - by eco_bach
    Hi I'm tring to convert the following 3 methods from java-actionscript to Objective C. Part of my confusion I think is not knowing what Number types, primitives I should be using. ie in actionscript you have only Number, int, and uint. These are the 3 functions I am trying to convert public function normalize(value:Number, minimum:Number, maximum:Number):Number { return (value - minimum) / (maximum - minimum); } public function interpolate(normValue:Number, minimum:Number, maximum:Number):Number { return minimum + (maximum - minimum) * normValue; } public function map(value:Number, min1:Number, max1:Number, min2:Number, max2:Number):Number { return interpolate( normalize(value, min1, max1), min2, max2); } This is what I have so far -(float) normalize:(float*)value withMinimumValue:(float*)minimum withMaximumValue:(float*)maximum { return (value - minimum) / (maximum - minimum); } -(float) interpolate:(float*)normValue withMinimumValue:(float*)minimum withMaximumValue:(float*)maximum { return minimum + (maximum - minimum) * normValue; } -(float) map:(float*)value withMinimumValue1:(float*)min1 withMaximumValue1:(float*)max1 withMinimumValue2:(float*)min2 withMaximumValue2:(float*)max2 { return interpolate( normalize(value, min1, max1), min2, max2); }

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  • python: how to convert list of lists into a single nested list

    - by Bhuski
    I have a python list of lists as shown below: mylist=[ [['orphan1', ['some value1']]], [['parent1', ['child1', ['child', ['some value2']]]]], [['parent1', ['child2', ['child', ['some value3']]]]] ] I need to convert the above list to some thing like this: result=[ ['orphan1', ['some value1']], ['parent1', ['child1', ['child', ['some value2']]], ['child2', ['child', ['some value3']]]] ] Kindly help me approach this problem. I have given only simple list. In actual scenario here, in my list, even grand parents/grand childs are there. How much ever deep the input nested list is, I need to convert it to a single nested list, with common list elements (parents and grand parents) appearing only once. (but the next to innermost list element('child' in above example) should appear as many times it occurs in the input list. I have been trying to do this last two days, but did not end up with working solution :(. I need to use the output in django template filter: unordered_list so that the resultant nested list appears as a nested unordered list in my html page ..

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  • how to convert byte array to key format??

    - by sebby_zml
    hi everyone, i would like to know how to convert byte array into key. i am doing an AES encryption/decryption. instead of generating a key, i would like to use my generated byte array. byte[] clientCK = Milenage.f3(sharedSecret16, RANDbytes, opc); let say i have a byte array called clientCK, stated above. i want to use it in AES encryption as shown below. Cipher c = Cipher.getInstance("AES"); c.init(Cipher.ENCRYPT_MODE, key); byte[] encValue = c.doFinal(valueToEnc.getBytes()); String encryptedValue = new BASE64Encoder().encode(encValue); therefore, i need to convert that byte array clientCK into key format. please help.

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