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  • Issue with webview with emulator and some devices Android

    - by Yasir Khan
    I am developing an application that is focuses on on WebView i am loading map from a webpage and calling subsequent java script request on it but i do not know what is happening with Galaxy Tab 7' and my emulator too after running well first time if i visit the application again its just showing blank page. Code: mMapView = (WebView) findViewById(R.id.mapview); mMapView.clearCache(true); mMapView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY); mMapView.getSettings().setJavaScriptEnabled(true); mMapView.loadUrl(mapurl); mMapView.setWebViewClient(new WebViewClient() { public void onPageFinished(WebView view, String url) { Log.e("Page loading","Url is :"+url); } @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { // TODO Auto-generated method stub view.loadUrl(url); return true; } }); initially i thought its a cache problem and i added clearcache() without any help. :-(

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  • inter servlet communication

    - by mithun1538
    Hello everyone, I have two servlets: LoginServlet and MailServlet. LoginServlet queries a mysql table using jdbc to get a string(eMail). What I want is to forward this string to MailServlet which in turn will send an email to that e-mail ID sent by LoginServlet. My question is how do I call and send the variable eMail to MailServlet, from LoginServlet? I thought of creating an instance of the MailServlet as : MailServlet servlet = new MailServlet(); And then use the servlet object to call the function doGet() in MailServlet. But I am feeling that there is some error in this as this is not the right way to call a servlet. So how do I call and pass a variable to MailServlet?

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  • Calling HttpRequest::getRawRequestMessage() without send()

    - by danielgrad
    I am trying to call getRawRequestMessage() to get the raw HTTP content of the request described by a HttpRequest object, but I notice it always returns an empty string if I don't call send() first. Which kind of defeats my purpose (I want to send the data through other means than the HttpRequest's own send() method). Is there any other way to convert a HttpRequest object to it's raw string equivalent? To give more context: I'm working with a complex class that builds a HttpRequest object and sends requests through it and I want to add a new mode to the class that will work through raw sockets instead. The request is already built in the HttpRequest object and I would like to not have to parse the object manually to generate the HTTP message.

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  • How do I pass a struct (or class) message back and forth between a C# service and a separate VB 6 ap

    - by grantjumper
    I need to pass data between a c# service and a running vb 6 application, considering using Windows Messaging. How do I pass the data back and forth between a C# service and a running vb 6 application? Shortened sample of the data I am passing back and forth is below: namespace MainSection { public struct Info { private int _Id; private string _TypeCode; private float _Calc; private DateTime _ProcessDate; private bool _ProcessFlag; public int Id { get { return _Id; } set { _Id = value; } } public string TypeCode { get { return _TypeCode; } set { _TypeCode = value; } } public float Calc { get { return _Calc; } set { _Calc = value; } } public DateTime ProcessDate { get { return _ProcessDate} set { _ProcessDate = value; } } public bool ProcessFlag { get { return _ProcessFlag} set { _ProcessFlag = value; } } } }

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  • Convert integer to equivalent number of blank spaces.

    - by mike
    I was wondering what the easiest way is to convert an integer to the equivalent number of blank spaces. I need it for the spaces between nodes when printing a binary search tree. I tried this `int position = printNode.getPosition(); String formatter = "%1"+position+"s%2$s\n"; System.out.format(formatter, "", node.element);` But I am getting almost 3 times as many spaces compared to the int value of position. I'm not really sure if I am formatting the string right either. Any suggestions would be great! If it makes it clearer, say position = 6; I want 6 blank spaces printed before my node element.

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  • Why doesn't Python's `re.split()` split on zero-length matches?

    - by Tim Pietzcker
    One particular quirk of the (otherwise quite powerful) re module in Python is that re.split() will never split a string on a zero-length match, for example if I want to split a string along word boundaries: >>> re.split(r"\s+|\b", "Split along words, preserve punctuation!") ['Split', 'along', 'words,', 'preserve', 'punctuation!'] instead of ['', 'Split', 'along', 'words', ',', 'preserve', 'punctuation', '!'] Why does it have this limitation? Is it by design? Do other regex flavors behave like this?

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  • How can the generic method called know the type of the generic return?

    - by Paulo Guedes
    I couldn't find a duplicate for this question for Java, although there are a lot of them for C#. I have this method: public <T> T getSomething() { // } According to the type of T, I will have a different return. For example: String a = getSomething(); int b = getSomething(); For a, my method will return a specific String. For b, it will return a specific int. And so on. It seems that this can be done with typeof() in C#. How can I achieve it in Java?

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  • Trouble understanding Java map Entry sets

    - by Jake Sellers
    I'm looking at a java hangman game here: https://github.com/leleah/EvilHangman/blob/master/EvilHangman.java The code in particular is this: Iterator<Entry<List<Integer>, Set<String>>> k = partitions.entrySet().iterator(); while (k.hasNext()) { Entry<?, ?> pair = (Entry<?, ?>)k.next(); int sizeOfSet = ((Set<String>)pair.getValue()).size(); if (sizeOfSet > biggestPartitionSize) { biggestPartitionSize = sizeOfSet; } } Now my question. My google foo is weak I guess, I cannot find much on Entry sets other than the java doc itself. Is is just a temporary copy of the map? And I cannot find any info at all on the syntax: Entry<?, ?> Can anyone explain or point me toward an explanation of what is going on with those question marks? Thanks in advanced.

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  • how to call a function in c# which return type is array.

    - by Manoj Wadhwani
    public CD[] GetCDCatalog() { XDocument docXML = XDocument.Load(Server.MapPath("mydata.xml")); var CDs = from cd in docXML.Descendants("Table") select new CD { title = cd.Element("title").Value, star = cd.Element("star").Value, endTime = cd.Element("endTime").Value, }; return CDs.ToArray<CD>(); } I am calling this function on page load ie. string[] arr = GetCDCatalog(); but this is giving Error Cannot implicitly convert type 'Calender.CD[]' to 'string[]' Please suggetst how can i call function on page load which return type is array.

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  • How to look up an NHibernate entity's table mapping from the type of the entity?

    - by snicker
    Once I've mapped my domain in NHibernate, how can I reverse lookup those mappings somewhere else in my code? Example: The entity Pony is mapped to a table named "AAZF1203" for some reason. (Stupid legacy database table names!) I want to find out that table name from the NH mappings using only the typeof(Pony) because I have to write a query elsewhere. How can I make the following test pass? private const string LegacyPonyTableName = "AAZF1203"; [Test] public void MakeSureThatThePonyEntityIsMappedToCorrectTable() { string ponyTable = GetNHibernateTableMappingFor(typeof(Pony)); Assert.AreEqual(LegacyPonyTableName, ponyTable); } In other words, what does the GetNHibernateTableMappingFor(Type t) need to look like?

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  • mysql_fetch_assoc data to COOKIE in user browser

    - by Gowtham Raj
    I had data in mysql, where it does not need any security. I had a sql query string to get the data out every time using mysql_fetch_assoc. So, I planed to store data in users browser.To reduce no of quires to sql. if (!isset($_COOKIE['countries'])){ $query = "SELECT iso,name FROM sel_country"; $countries = mysql_query($query); setcookie('countries', serialize($countries), time()+3600); }else{ $countries = $unserialize($_COOKIE['countries']); } while ($row = mysql_fetch_assoc($countries)) {echo $row['name']} But, When cookie is set it is showing following error Fatal error: Function name must be a string in /home/worlds/public_html/index/ctrl.php on line 15 My cookie in browser displaying content as i%3A0%3B Please help me out, how should i go?

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  • Custom validatior in ASP.net

    - by DJPB
    Hi there. I'm working on an ASP.NET/C# app. I have 2 text boxes and I need to validate if the input text for both of them are not both null ex: if(string.IsNullOrEmpty(TextBox1.Text) && string.IsNullOrEmpty(TextBox2.Text) ) //FAIL!!! else // OK! that is, at least one txtBox has values I was planning on using a custom validator but it seems that the validation function only gets called when something is written on the textBox i'm using has the 'control to validate'. Now, that doesn't work for me since I want to show an error message when both text boxes are empty. Is there a way to make the validation function to be called with, for example a postback? Or is there any other better approach to this case than the custom validator? tks

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  • how to access camera.java in on cick event?

    - by Srikanth Naidu
    hi , i am making a app which takes photo on button click i have camera.java which operates camera and takes photo how to i call it on the below event? public void onClick(DialogInterface arg0, int arg1) { setContentView(R.layout.startcamera); } Camera .java package neuro.com; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import android.app.Activity; import android.hardware.Camera; import android.hardware.Camera.PictureCallback; import android.hardware.Camera.ShutterCallback; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.FrameLayout; public class CameraDemo extends Activity { private static final String TAG = "CameraDemo"; Camera camera; Preview preview; Button buttonClick; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.startcamera); preview = new Preview(this); ((FrameLayout) findViewById(R.id.preview)).addView(preview); buttonClick = (Button) findViewById(R.id.buttonClick); buttonClick.setOnClickListener( new OnClickListener() { public void onClick(View v) { preview.camera.takePicture(shutterCallback, rawCallback, jpegCallback); } }); Log.d(TAG, "onCreate'd"); } ShutterCallback shutterCallback = new ShutterCallback() { public void onShutter() { Log.d(TAG, "onShutter'd"); } }; /** Handles data for raw picture */ PictureCallback rawCallback = new PictureCallback() { public void onPictureTaken(byte[] data, Camera camera) { Log.d(TAG, "onPictureTaken - raw"); } }; /** Handles data for jpeg picture */ PictureCallback jpegCallback = new PictureCallback() { public void onPictureTaken(byte[] data, Camera camera) { FileOutputStream outStream = null; try { // write to local sandbox file system // outStream = CameraDemo.this.openFileOutput(String.format("%d.jpg", System.currentTimeMillis()), 0); // Or write to sdcard outStream = new FileOutputStream(String.format("/sdcard/%d.jpg", System.currentTimeMillis())); outStream.write(data); outStream.close(); Log.d(TAG, "onPictureTaken - wrote bytes: " + data.length); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { } Log.d(TAG, "onPictureTaken - jpeg"); } }; }

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  • c# how to set up and use session state from preinit

    - by Praesagus
    OK so to set and read variables from the current session String Myvar =(string) System.Web.HttpContext.Current.Session[“MyVariable”] To set System.Web.HttpContext.Current.Session[“MyVariable”] = “NewValue” I can do neither, I get a System.NullReferenceException: Object reference not set to an instance of an object. from System.Web.HttpContext.Current.Session. In my web.config I have <sessionState mode="StateServer" stateConnectionString="tcpip=127.0.0.1:42424" cookieless="false" timeout="20"> </sessionState> I have read a dozen articles on the the necessity of IHttpHandler and an IRequiresSessionState interface. I think the issue may be caused because I am requesting this information in Page_PreInit. I found a solution in a stack overflow article but I don't seem be using it properly to actually make this go. I am not sure what I am missing. Thanks in advance.

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  • How to use switch statement with Enumerations C#

    - by Maximus Decimus
    I want to use a switch statement in order to avoid many if's. So I did this: public enum Protocol { Http, Ftp } string strProtocolType = GetProtocolTypeFromDB(); switch (strProtocolType) { case Protocol.Http: { break; } case Protocol.Ftp: { break; } } but I have a problem of comparing an Enum and a String. So if I added Protocol.Http.ToString() there is another error because it allows only CONSTANT evaluation. If I change it to this switch (Enum.Parse(typeof(Protocol), strProtocolType)) It's not possible also. So, it's possible to use in my case a switch statement or not?

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  • What is the explanation of this results in Java ?

    - by M.H
    I have the following code : public class Main { private int i = j; //1 private int j = 10; public static void main(String[] args) { System.out.println((new Main()).i); } } and there is a compiler error in line 1 because an illegal forward reference. But when I am trying the following code : public class Main { int i = getJ(); //1 int getJ(){ return j; } int j=10; public static void main(String[] args) { System.out.println(new Main().i); } } it works fine and the result is 0.Why there is no illegal forward reference in line 1 here?.The two codes look similar to me.

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  • How can I pass a Context object to a thread on call

    - by Pentium10
    I have this code fragment: public static class ExportDatabaseFileTask extends AsyncTask<String, Void, Boolean> { private final ProgressDialog dialog = new ProgressDialog(ctx); protected void onPreExecute(); protected Boolean doInBackground(final String... args); protected void onPostExecute(final Boolean success); } I execute this thread as new ExportDatabaseFileTask().execute(); As you see I use a ctx as Context variable in the new ProgressDialog call, how do I pass a context to the call method? to this one: new ExportDatabaseFileTask().execute();*

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  • Constructing a function call in C

    - by 0x6adb015
    Given that I have a pointer to a function (provided by dlsym() for example) and a linked list of typed arguments, how can I construct a C function call with those arguments? Example: struct param { enum type { INT32, INT64, STRING, BOOL } type; union { int i32; long long i64; char *str; bool b; } value; struct param *next; }; int call_this(int (*function)(), struct param *args) { int result; /* magic here that calls function(), which has a prototype of f(int, long long, char *, bool); , when args consist of a linked list of INT32, INT64, STRING, BOOL types. */ return result; } The OS is Linux. I would like the solution to be portable across MIPS, PPC and x86 (all 32 bits) architecture, using GCC as the compiler. Thanks!

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  • Generics limitation, or lack of skillz ?

    - by Two Shoes
    I want to define the following class as such: public class CollectionAttribute<E extends Collection<T>> { private String name; private E value; public CollectionAttribute(String name, E value) { this.name = name; this.value = value; } public E getValue() { return value; } public void addValue(T value) { value.add(T); } } This won't compile (cannot resolve symbol T). If I replace the class declaration with the following: public class CollectionAttribute<E extends Collection<?>> Then I can't reference the parametrized type of the collection. Am I missing something or have I reached a limitation with generics in Java ?

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  • How to correctly bind an object to a WPF DataGrid?

    - by mbadawi23
    I'm trying to get a WPF DataGrid to work from a user control I'm building. Things seems to work fine. But I noticed this message in the Output window in the IDE: System.Windows.Data Error: 39 : BindingExpression path error: 'Name' property not found on 'object' ''Object' (HashCode=18165668)'. BindingExpression:Path=Name; DataItem='Object' (HashCode=18165668); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String') System.Windows.Data Error: 39 : BindingExpression path error: 'Department' property not found on 'object' ''Object' (HashCode=18165668)'. BindingExpression:Path=Name; DataItem='Object' (HashCode=18165668); target element is 'TextBlock' (Name=''); target property is 'Text' (type 'String')

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  • Identifying a function call in a python script line in runtime

    - by Dani
    I have a python script that I run with 'exec'. The script's string has calls to functions. When a function is called, I would like it to know the line number and offset in line for that call in the script (in the string I fed exec with). Here is an example. If my script is: foo1(); foo2(); foo1() foo3() And if I have code that prints (line,offset) in every function, I should get (0,0), (0,8), (0,16), (1,0) In most cases this can be easily done by getting the stack frame, because it contains the line number and the function name. The only problem is when there are two functions with the same name in a certain line. Unfortunately this is a common case for me. Any ideas?

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  • sloving Algorithm notation

    - by neednewname
    Use big-O notation to classify the traditional grade school algorithms for addition and multiplication. That is, if asked to add two numbers each having N digits, how many individual additions must be performed? If asked to multiply two N-digit numbers, how many individual multiplications are required Suppose f is a function that returns the result of reversing the string of symbols given as its input, and g is a function that returns the concatenation of the two strings given as its input. If x is the string hrwa, what is returned by g(f(x),x)? Explain your answer - don't just provide the result!

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  • apache commons http client efficiency

    - by wo_shi_ni_ba_ba
    I use apache commons http client to send data via post every second, is there a way to make the following code more efficient? I know http is stateless, but is there anything I can do to improve since the base url is always the same in this case(only the parameter value change. private void sendData(String s){ try { HttpClient client = getHttpClient(); HttpPost method = new HttpPost("http://192.168.1.100:8080/myapp"); System.err.println("send to server "+s); List formparams = new ArrayList(); formparams.add(new BasicNameValuePair("packet", s)); UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formparams, "UTF-8"); method.setEntity(entity); HttpResponse resp=client.execute(method); String res = EntityUtils.toString(resp.getEntity()); System.out.println(res); } catch (Exception e) { e.printStackTrace(); } } private HttpClient getHttpClient() { if(httpClient==null){ httpClient = new DefaultHttpClient(); } return httpClient; }

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  • controlling the order of submitted futures

    - by mac
    In this example, i am submitting a few files to my comparator object. It all works fine, except that i noticed that order in which files are submitted is not always teh same order in which they are returned. Any suggestions on how i can better control this? ExecutorService pool = Executors.newFixedThreadPool(5); CompletionService<Properties> completion = new ExecutorCompletionService<Properties>(pool); for (String target : p.getTargetFiles()) { completion.submit(new PropertiesLoader(target, p)); } for (@SuppressWarnings("unused") String target : p.getTargetFiles()) { Properties r = null; try { r = completion.take().get(); } catch (InterruptedException e) { e.printStackTrace(); } catch (ExecutionException e) { e.printStackTrace(); } p.addTargetFilesProperties(r); } pool.shutdown();

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  • How to call in C# function from Win32 DLL with custom objects

    - by marko
    How to use in C# function from Win32 DLL file made in Delphi. When function parameters are custom delphi objects? Function definition in Delphi: function GetAttrbControls( Code : PChar; InputList: TItemList; var Values : TValArray): Boolean; stdcall; export; Types that use: type TItem = packed record Code : PChar; ItemValue: Variant; end; TItemList = array of TItem; TValArray = array of PChar; Example in C# (doesn't work): [StructLayout(LayoutKind.Sequential)] public class Input { public string Code; public object ItemValue; }; [DllImport("Filename.dll", EntryPoint = "GetValues", CharSet = CharSet.Ansi, ExactSpelling = true, CallingConvention = CallingConvention.Cdecl)] public static extern bool GetValues(string Code, Input[] InputList, ref StringBuilder[] Values);

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