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  • Connect to SQLite Database using Eclipse (Java)

    - by bnabilos
    Hello, I'm trying to connect to SQLite database with Ecplise but I have some errors. This is my Java code and the errors that I get on output. Please see if you can help me. Thank you in advance. package jdb; import java.sql.*; public class Test { public static void main(String[] args) throws Exception { Class.forName("org.sqlite.JDBC"); Connection conn = DriverManager.getConnection("jdbc:sqlite:/Applications/MAMP/db/sqlite/test.sqlite"); Statement stat = conn.createStatement(); stat.executeUpdate("drop table if exists people;"); stat.executeUpdate("create table people (name, occupation);"); PreparedStatement prep = conn.prepareStatement( "insert into people values (?, ?);"); prep.setString(1, "Gandhi"); prep.setString(2, "politics"); prep.addBatch(); prep.setString(1, "Turing"); prep.setString(2, "computers"); prep.addBatch(); prep.setString(1, "Wittgenstein"); prep.setString(2, "smartypants"); prep.addBatch(); conn.setAutoCommit(false); prep.executeBatch(); conn.setAutoCommit(true); ResultSet rs = stat.executeQuery("select * from people;"); while (rs.next()) { System.out.println("name = " + rs.getString("name")); System.out.println("job = " + rs.getString("occupation")); } rs.close(); conn.close(); } } ans that what I get in Ecplise : Exception in thread "main" java.lang.ClassNotFoundException: org.sqlite.JDBC at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:315) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:330) at java.lang.ClassLoader.loadClass(ClassLoader.java:250) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:398) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:169) at jdb.Test.main(Test.java:7) Thank you

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  • Fastest HTML Downloader

    - by Ali
    I want the fastest method to download the source of HTML with given URL address Is there any solution beyond normal C# solutions like (WebClient Download or HttpWebRequest, HttpWebResponse) that speed up fetching HTML source code ??

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  • liferay portal with asp.net

    - by harrisonmeister
    Hi This is a java noob related question. Have been looking at Liferay portal technology, however I'm a dotnet (c# or vb) developer by day. Does anyone know if you can use the install of liferay to host dotnet code, not just by using the iFrame method of redirecting to a different site - that just sucks in my opinion Alternatively is the saner option to go down the port my skills back to java? Thanks Mark

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  • Is there simple way how to join two RouteValueDictionary values to pass parameters to Html.ActionLin

    - by atagaew
    Hi. Look on my code that i created in a partial View: <% foreach (Customer customerInfo in Model.DataRows) {%> <tr> <td> <%=Html.ActionLink( customerInfo.FullName , ((string)ViewData["ActionNameForSelectedCustomer"]) , JoinParameters(customerInfo.id, (RouteValueDictionary) ViewData["AdditionalSelectionParameters"]) , null)%> </td> <td> <%=customerInfo.LegalGuardianName %> </td> <td> <%=customerInfo.HomePhone %> </td> <td> <%=customerInfo.CellPhone %> </td> </tr> <%}%> Here I'm building simple table that showing customer's details. As you may see, in each row, I'm trying to build a link that will redirect to another action. That action requires customerId and some additional parameters. Additional parameters are different for each page where this partial View is using. So, i decided to make Action methods to pass that additional parameters in the ViewData as RouteValueDictionary instance. Now, on the view i have a problem, i need to pass customerId and that RouteValueDictionary together into Html.ActionLink method. That makes me to figure out some way of how to combine all that params into one object (either object or new RouteValueDictionary instance) Because of the way the MVC does, i can't create create a method in the codebehind class (there is no codebihind in MVC) that will join that parameters. So, i used ugly way - inserted inline code: ...script runat="server"... private RouteValueDictionary JoinParameters(int customerId, RouteValueDictionary defaultValues) { RouteValueDictionary routeValueDictionary = new RouteValueDictionary(defaultValues); routeValueDictionary.Add("customerId", customerId); return routeValueDictionary; } ...script... This way is very ugly for me, because i hate to use inline code in the View part. My question is - is there any better way of how i can mix parameters passed from the action (in ViewData, TempData, other...) and the parameter from the view when building action links. May be i can build this link in other way ? Thanks!

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  • Is it good practice to generally make heavyweight classes non-copyable?

    - by Emile Cormier
    I have a Shape class containing potentially many vertices, and I was contemplating making copy-constructor/copy-assignment private to prevent accidental needless copying of my heavyweight class (for example, passing by value instead of by reference). To make a copy of Shape, one would have to deliberately call a "clone" or "duplicate" method. Is this good practice? I wonder why STL containers don't use this approach, as I rarely want to pass them by value.

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  • Is it bad to have multiple return statements?

    - by scot
    Hi, I have a code somethg like below: int method(string a ,int b , int c){ if(cond1) return -1; if(cond2 || cond3) return 3; if(cond1 && cond2) return 0; else return -999; } Does it perform badly when compared to having multiple if else and have single return?

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  • Update a Themeroller-based theme

    - by justSteve
    I have a jQueryUI theme built by Themeroller (1.7.2) that i'd like to tweak via Themeroller. I recall seeing there was a method to use an existing custom theme as a starting point for a new theme - essentially importing the old theme so additional tweaks could be executed. Can't see instructions on how to do that now. thx

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  • Does Restlet support parsing URLs into calling methods with parameters?

    - by John C
    Take the following example. I have a resource public class HelloWorldResource extends ServerResource { @Get public String represent(String arg) { return "hello, world (from the cloud!)" + arg; } } That is mapped by router.attach("/hi/{message}", HelloWorldResource.class); Is it possible to configure the routing such that accessing /hi/somestuffhere will make restlet fill in the arg parameter in the represent method?

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  • help me "dry" out this .net XML serialization code

    - by Sarah Vessels
    I have a base collection class and a child collection class, each of which are serializable. In a test, I discovered that simply having the child class's ReadXml method call base.ReadXml resulted in an InvalidCastException later on. First, here's the class structure: Base Class // Collection of Row objects [Serializable] [XmlRoot("Rows")] public class Rows : IList<Row>, ICollection<Row>, IEnumerable<Row>, IEquatable<Rows>, IXmlSerializable { public Collection<Row> Collection { get; protected set; } public void ReadXml(XmlReader reader) { reader.ReadToFollowing(XmlNodeName); do { using (XmlReader rowReader = reader.ReadSubtree()) { var row = new Row(); row.ReadXml(rowReader); Collection.Add(row); } } while (reader.ReadToNextSibling(XmlNodeName)); } } Derived Class // Acts as a collection of SpecificRow objects, which inherit from Row. Uses the same // Collection<Row> that Rows defines which is fine since SpecificRow : Row. [Serializable] [XmlRoot("MySpecificRowList")] public class SpecificRows : Rows, IXmlSerializable { public new void ReadXml(XmlReader reader) { // Trying to just do base.ReadXml(reader) causes a cast exception later reader.ReadToFollowing(XmlNodeName); do { using (XmlReader rowReader = reader.ReadSubtree()) { var row = new SpecificRow(); row.ReadXml(rowReader); Collection.Add(row); } } while (reader.ReadToNextSibling(XmlNodeName)); } public new Row this[int index] { // The cast in this getter is what causes InvalidCastException if I try // to call base.ReadXml from this class's ReadXml get { return (Row)Collection[index]; } set { Collection[index] = value; } } } And here's the code that causes a runtime InvalidCastException if I do not use the version of ReadXml shown in SpecificRows above (i.e., I get the exception if I just call base.ReadXml from within SpecificRows.ReadXml): TextReader reader = new StringReader(serializedResultStr); SpecificRows deserializedResults = (SpecificRows)xs.Deserialize(reader); SpecificRow = deserializedResults[0]; // this throws InvalidCastException So, the code above all compiles and runs exception-free, but it bugs me that Rows.ReadXml and SpecificRows.ReadXml are essentially the same code. The value of XmlNodeName and the new Row()/new SpecificRow() are the differences. How would you suggest I extract out all the common functionality of both versions of ReadXml? Would it be silly to create some generic class just for one method? Sorry for the lengthy code samples, I just wanted to provide the reason I can't simply call base.ReadXml from within SpecificRows.

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  • Saving file to phone in stead of SD-card

    - by Galip
    Hi guys, In my app I save an XML file to the users SD-card by doing File newxmlfile = new File(Environment.getExternalStorageDirectory() + "/Message.xml"); But not all users have SD-cards in their phone and therefore my app is likely to crash. How must I change my File creating method in order to save the file to the phone's memory instead of the SD-card? Also, how must I change the loading of the file? (currently: new InputSource(new FileInputStream(Environment.getExternalStorageDirectory() + "/Message.xml")))

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  • Converting PDF to PostScript with GhostScript

    - by Joel Martinez
    I installed ghostscript and updated the appropriate path variables ... however, I'm getting an error when I try to execute this command: C:\PROGRA~1\gs\gs8.64\lib>pdf2ps mydocument.pdf mydocument.ps Access is denied. Unable to open command line file _.at Is this the right command? did I miss some configuration or path setting? Otherwise, is there a sane method of doing this conversion? Thanks!

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  • Client wants "uncopyable images" on website

    - by Steph
    Hi, I need a method to make the product images on a website "uncopyable" - not be able drag and drop them onto desktop or right click and save. They also need to be links and are in a scrolling javascript viewer (http://www.dynamicdrive.com/dynamicindex4/stepcarousel.htm) Any ideas? Thanks, Steph

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  • iPhone: Error when using -(id)initWithNibName

    - by Nic Hubbard
    I am trying to use the following code, but I always get an error that I can find little information about: - (id)initWithNibName:@"MyRidesListView" bundle:nil { if ((self = [super initWithNibName:@"MyRidesListView" bundle:nil])) { // Custom initialization } return self; } Error: expected identifier before 'OBJC_STRING' token This seems like a simple method to be calling. This is for a UINavigationController. Ideas?

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  • Out of memory error

    - by Rahul Varma
    Hi, I am trying to retrieve a list of images and text from a web service. I have first coded to get the images to a list using Simple Adapter. The images are getting displayed the app is showing an error and in the Logcat the following errors occur... 04-26 10:55:39.483: ERROR/dalvikvm-heap(1047): 8850-byte external allocation too large for this process. 04-26 10:55:39.493: ERROR/(1047): VM won't let us allocate 8850 bytes 04-26 10:55:39.563: ERROR/AndroidRuntime(1047): Uncaught handler: thread Thread-96 exiting due to uncaught exception 04-26 10:55:39.573: ERROR/AndroidRuntime(1047): java.lang.OutOfMemoryError: bitmap size exceeds VM budget 04-26 10:55:39.573: ERROR/AndroidRuntime(1047): at android.graphics.BitmapFactory.nativeDecodeStream(Native Method) 04-26 10:55:39.573: ERROR/AndroidRuntime(1047): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:451) 04-26 10:55:39.573: ERROR/AndroidRuntime(1047): at com.stellent.gorinka.AsyncImageLoaderv.loadImageFromUrl(AsyncImageLoaderv.java:57) 04-26 10:55:39.573: ERROR/AndroidRuntime(1047): at com.stellent.gorinka.AsyncImageLoaderv$2.run(AsyncImageLoaderv.java:41) 04-26 10:55:40.393: ERROR/dalvikvm-heap(1047): 14600-byte external allocation too large for this process. 04-26 10:55:40.403: ERROR/(1047): VM won't let us allocate 14600 bytes 04-26 10:55:40.493: ERROR/AndroidRuntime(1047): Uncaught handler: thread Thread-93 exiting due to uncaught exception 04-26 10:55:40.493: ERROR/AndroidRuntime(1047): java.lang.OutOfMemoryError: bitmap size exceeds VM budget 04-26 10:55:40.493: ERROR/AndroidRuntime(1047): at android.graphics.BitmapFactory.nativeDecodeStream(Native Method) 04-26 10:55:40.493: ERROR/AndroidRuntime(1047): at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:451) 04-26 10:55:40.493: ERROR/AndroidRuntime(1047): at com.stellent.gorinka.AsyncImageLoaderv.loadImageFromUrl(AsyncImageLoaderv.java:57) 04-26 10:55:40.493: ERROR/AndroidRuntime(1047): at com.stellent.gorinka.AsyncImageLoaderv$2.run(AsyncImageLoaderv.java:41) 04-26 10:55:40.594: INFO/Process(584): Sending signal. PID: 1047 SIG: 3 Here's the coding in the adapter... final ImageView imageView = (ImageView) rowView.findViewById(R.id.image); AsyncImageLoaderv asyncImageLoader=new AsyncImageLoaderv(); Bitmap cachedImage = asyncImageLoader.loadDrawable(imgPath, new AsyncImageLoaderv.ImageCallback() { public void imageLoaded(Bitmap imageDrawable, String imageUrl) { imageView.setImageBitmap(imageDrawable); } }); imageView.setImageBitmap(cachedImage); .......... ........... ............ //To load the image... public static Bitmap loadImageFromUrl(String url) { InputStream inputStream;Bitmap b; try { inputStream = (InputStream) new URL(url).getContent(); BitmapFactory.Options bpo= new BitmapFactory.Options(); bpo.inSampleSize=2; b=BitmapFactory.decodeStream(inputStream, null,bpo ); return b; } catch (IOException e) { throw new RuntimeException(e); } // return null; } Please tell me how to fix the error....

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  • How to manage transaction for database and file system in jee environment?

    - by Michael Lu
    I store file’s attributes (size, update time…) in database. So the problem is how to manage transaction for database and file. In jee environment, JTA is just able to manage database transaction. In case, updating database is successful but file operation fails, should I write file-rollback method for this? Moreover, file operation in EJB container violates EJB spec. What’s your opinion? Thank!

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  • Autofac wiring question - beginner

    - by user645788
    Beginners question: Given two classes: Myclass5 and Myclass6 how can one wire up following factory method (returned as Func) such that myclass5 and myclass6 instances and IMyClass that they depend on are all retrieved via autofac (assuming that these three instances are registered). public static MyClass4 FactoryMethod(int nu) { if (nu == 1) return new MyClass5(....); if (nu == 4) return new MyClass6(....); throw new NotImplementedException(); } public abstract class MyClass4 { } public class MyClass5 : MyClass4 { public MyClass5(int nu, IMyClass a) { } } public class MyClass6 : MyClass4 { public MyClass6(int nu, IMyClass a) { } }

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  • NSData dataWithContentsOfURL

    - by ketan rajput
    I have this method for button click (download). The problem is that it is terminating due to an exception: [Session started at 2011-03-14 13:06:45 +0530.] 2011-03-14 13:06:45.710 XML[7079:20b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSCFString isFileURL]: unrecognized selector sent to instance 0x62b8' -(IBAction) download { UIImage *image = [UIImage imageWithData: [NSData dataWithContentsOfURL:@"http://ws.cdyne.com/WeatherWS/Images/thunderstorms.gif"]]; [image release]; } What is the problem?

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  • getting aspect related information reg

    - by GowthamanSS
    Suppose i have these structure as class ss { public void createfile() { StreamWriter sw= new StreamWriter("d:/test.txt"); } } i need to do aspect where ever i use StreamWriter? as for as consideration i already used the below code as [assembly: MyAspect(AttributeTargetAssembly="mscorlib", AttributeTargetTypes="System.IO.File", AttributeTargetMembers="Create"] for file.create method .. it works fine .. Is there any way to solve this problem ... waiting for your response

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