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• How to avoid null pointer error

  - by Jessy

  I trying to find whether the elements of 2 arrayLists are match or not. But this code give me error Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException since some of the elements are null. How can I solved this problem? String level []={"High","High","High","High","High","High"}; ArrayList<Object> n = new ArrayList<Object>(Arrays.asList(level)); String choice []={null,"High","Low","High",null,"Medium"}; ArrayList<Object> m = new ArrayList<Object>(Arrays.asList(choice)); //Check if the two arrayList are identical for(int i=0; i<m.size(); i++){ if(!(m.get(i).equals(n.get(i)))){ result= true; break; } } return result; }

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• Getting Out Of Memory: Java heap space, but while viewing heap space it max uses 50 MB

  - by ikky

  Hi! I'm using ASANT to run a xml file which points to a NARS.jar file. (i do not have the project file of the NARS.jar) I'm getting "java.lang.OutOfMemoryError: Java heap space. I used VisualVM to look at the heap while running the NARS.jar, and it says that it max uses 50 MB of the heapspace. I've set the initial and max size of heapspace to 512 MB. Does anyone have an ide of what could be wrong? I got 1 GB physical Memory and created a 5 GB pagefile (for test purpose). Thanks in advance.

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• Adding a JPanel to another JPanel having TableLayout

  - by user253530

  I am trying to develop a map editor in java. My map window receives as a constructor a Map object. From that map object i am able to retrieve the Grid and every item in the grid along with other getters and setters. The problem is that even though the Mapping extends JComponent, when I place it in a panel it is not painted. I have overridden the paint method to satisfy my needs. Here is the code, maybe you could help me. public class MapTest extends JFrame implements ActionListener { private JPanel mainPanel; private JPanel mapPanel; private JPanel minimapPanel; private JPanel relationPanel; private TableLayout tableLayout; private JPanel tile; MapTest(Map map) { mainPanel = (JPanel) getContentPane(); mapPanel = new JPanel(); populateMapPanel(map); mainPanel.add(mapPanel); this.setPreferredSize(new Dimension(800, 600)); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setVisible(true); } private double[][] generateTableLayoutSize(int x, int y, int size) { double panelSize[][] = new double[x][y]; for (int i = 0; i < x; i++) { for (int j = 0; j < y; j++) { panelSize[i][j] = size; } } return panelSize; } private void populateMapPanel(Map map) { double[][] layoutSize = generateTableLayoutSize(map.getMapGrid().getRows(), map.getMapGrid().getColumns(), 50); tableLayout = new TableLayout(layoutSize); for(int i = 0; i < map.getMapGrid().getRows(); i++) { for(int j = 0; j < map.getMapGrid().getColumns(); j++) { tile = new JPanel(); tile.setName(String.valueOf(((Mapping)map.getMapGrid().getItem(i, j)).getCharacter())); tile.add(map.getMapItem(i, j)); String constraint = i + "," + j; mapPanel.add(tile, constraint); } } mapPanel.validate(); mapPanel.repaint(); } public void actionPerformed(ActionEvent e) { throw new UnsupportedOperationException("Not supported yet."); } } My Mapping Class public class Mapping extends JComponent implements Serializable{ private BufferedImage image; private Character character; //default public Mapping() { super(); this.image = null; this.character = '\u0000'; } //Mapping from image and char public Mapping(BufferedImage image, char character) { super(); this.image = image; this.character = character; } //Mapping from file and char public Mapping(File file, char character) { try { this.image = ImageIO.read(file); this.character = character; } catch (IOException ex) { System.out.println(ex); } } public char getCharacter() { return character; } public void setCharacter(char character) { this.character = character; } public BufferedImage getImage() { return image; } public void setImage(BufferedImage image) { this.image = image; repaint(); } @Override /*Two mappings are consider the same if -they have the same image OR -they have the same character OR -both of the above*/ public boolean equals(Object mapping) { if (this == mapping) { return true; } if (mapping instanceof Mapping) { return true; } //WARNING! equals might not work for images return (this.getImage()).equals(((Mapping) mapping).getImage()) || (this.getCharacter()) == (((Mapping) mapping).getCharacter()); } @Override public void paintComponent(Graphics g) { super.paintComponent(g); //g.drawImage(image, 0, 0, null); g.drawImage(image, 0, 0, this.getWidth(), this.getHeight(), null); } // @Override // public Dimension getPreferredSize() { // if (image == null) { // return new Dimension(10, 10); //instead of 100,100 set any prefered dimentions // } else { // return new Dimension(100, 100);//(image.getWidth(null), image.getHeight(null)); // } // } private void readObject(java.io.ObjectInputStream in) throws IOException, ClassNotFoundException { character = (Character) in.readObject(); image = ImageIO.read(ImageIO.createImageInputStream(in)); } private void writeObject(java.io.ObjectOutputStream out) throws IOException { out.writeObject(character); ImageWriter writer = (ImageWriter) ImageIO.getImageWritersBySuffix("jpg").next(); writer.setOutput(ImageIO.createImageOutputStream(out)); ImageWriteParam param = writer.getDefaultWriteParam(); param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT); param.setCompressionQuality(0.85f); writer.write(null, new IIOImage(image, null, null), param); } }

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• Shark was unable to find symbol information for this address range - iPhone

  - by Elliot

  I'm trying to use Shark to determine which method(s) are taking the most time in my iPhone app. After sampling, I get this: Clicking the "!" button yields: Shark was unable to find symbol information for this address range. Typically this happens because the application was compiled without symbols or they have been subsequently stripped away. In Xcode, make sure the "Generate Debug Symbols" checkbox is selected (passes the -g flag to the compiler). Note that this does not affect code optimization, and does not typically alter performance significantly. However, the extra symbol information does consume significantly more space and may bloat the size of the executable. But I AM using the Debug option, and I am running on my Device. And Generate Debug Symbols IS checked. So what's wrong?

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• Csharp component which generates fragments with highlights for diffs for 2 strings

  - by MicMit

  I need C# implementation ( ideally open source ) which is similar to Delphi DLL. I am currently using the wrapper ( C# syntax is provided , but it is a call from a different language ) zdiff( string ref str1, string ref str2, int range , int trim ) it calls inside str1 = GetHiDiff(@str1,1,trim) str2 = GetHiDiff(@str1,2,trim) where function GetHiDiff(s:pchar; sIndex:integer; wtrim:integer): pchar; stdcall; What it does it returns a left fragment html of str1 and a right html fragment of str2 with diffs highlighted as strings are passed by reference. Range parameter determines the size of html fragment. Not sure what trim 0 does.

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• How do I make a google larger by scale

  - by Hultner

  I've just started using google charts and want to use it in a small project I'm workin on but I've bumped into a problem. The thing is I want the charts rather big at a static size and look good but I'm generating the charts dynamically with php. Now the problem is that I can't get it to scale properly in width but height is perfectly fine. Here's an example chart I've generated: Parameters: cht=bvo&chs=400x400 chd=t:1,4,1 chxr=2,0,4,1 chds=0,4 chco=4d89f9 chxt=x,x,y,y chxl=0:|3|7|26|1:|Correct+answers|3:|People You see how the chart fills the 400px of height but not the width. I've searched and look through the api but I can't get it right.

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• Alignment of rollover item affected by position of header

  - by Steven

  Hi guys, Got a problem where when you rollover "about us" the rollover appeared to the right of the screen exactly 224 pixels from the edge of the browser (maintained this gap when reducing the size of the browser) I fixed it by changing the .css position of the wrapper (from absolute to static) How ever now as you can see in the example ive done the header is aligning to the left: http://jimbeamracing.com.au/navigationtest.htm wrapper{ margin:0 auto; width:994px; position:static; padding:113px 0 0; } Any help would be much appreciated Regards, Steven

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• Anyone has implemented SMA* search algorithm?

  - by Endy

  I find the algorithm description in AIMA (Artificial Intelligence: A Modern Approach) is not correct at all. What does 'necessary' mean? What is the memory limit? The queue size or processed nodes? What if the current node has no children at all? I am wondering if this algorithm itself is correct or not. Because I searched the Internet and nobody has implemented it yet. Thanks.

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• In windbg, how do I get a heap header address from !heap -l results?

  - by Kevin

  I am playing around with windbg's !heap command, particular the "-l" switch which detects memory leaks. When -l does detect a leak, I am having problems navigating from its results to a stack trace for the source of the leak. Here is a snippet of the results from !heap -l 0:066 !heap -l Searching the memory for potential unreachable busy blocks. Entry User Heap Segment Size PrevSize Unused Flags 0324b500 0324b508 01580000 03230000 20 60 a busy 0324b520 0324b528 01580000 03230000 20 20 a busy 0324b5c8 0324b5d0 01580000 03230000 20 28 a busy Windbg's documentation for !heap tells me to use dt _DPH_BLOCK_INFORMATION with the header address, followed by dds with the blocks' StackTrace field. But the output for !heap -l doesn't specify a header address! It's only specififying Entry, User, Heap, and Segment. I've racked my brain looking over the other commands but can't figure out how to get the header address from any of these fields. Can someone help?

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• Web Services: more frequent "small" calls, or less frequent "big" calls

  - by Klay

  In general, is it better to have a web application make lots of calls to a web service getting smaller chunks of data back, or to have the web app make fewer calls and get larger chunks of data? In particular, I'm building a Silverlight app that needs to get large amounts of data back from the server in response to a query created by a user. Each query could return anywhere from a few hundred records to a few thousand. Each record has around thirty fields of mostly decimal-type data. I've run into the situation before where the payload size of the response exceeded the maximum allowed by the service. I'm wondering whether it's better (more efficient for the server/client/web service) to cut this payload vertically--getting all values for a single field with each call--or horizontally--getting batches of complete records with each call. Or does it matter?

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• Reading multiple files with PHPExcel

  - by KaOSoFt

  Hello there. I just recently started using this library (the one from CodePlex), but I ran into some issues. My goal is to use it so I can process some data from multiple Excel files, and send such data to a database, per file. I'm doing something like: foreach( $file_list as $file ) { $book = PHPExcel_IOFactory::load( $path . $file ); } So, inside the foreach I'm (for now) just showing the data to the user, but after five files, I get a memory error: Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 50688 bytes) in /var/www/test/classes/PHPExcel/Shared/OLERead.php on line 76 Is there a way to __destruct the object after each file is loaded, so space is reserved (made free) for the next file, instead of accumulating it, or do you rather know of a reason and work-around for this? Please let me know any suggestions you have. Thanks in advance.

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• Objective-C I can access self.view but not self.view.frame

  - by user292896

  I can access and show self.view and see the frame in the log but when I try to access self.view.frame I get null. Below is the log output of NSLog(@"Show self.view:%@",self.view); NSLog(@"Show self.view.frame:%@",self.view.frame); - 2010-03-28 11:08:43.373 vivmed_CD_Tab[20356:207] Show self.view:<UITableView: 0x4001600; frame = (0 0; 320 583); clipsToBounds = YES; autoresize = W+H; layer = <CALayer: 0x3b21270>> 2010-03-28 11:08:43.373 vivmed_CD_Tab[20356:207] Show self.view.frame:(null) Can anyone explain why self.view.frame is null but self.view shows a frame? May Goal is to change the frame size. Cheers, Grant

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• AJAX vs AHAH Is there a performance advantage?

  - by LanguaFlash

  My concern is performance, is there a reason to to send the client XML instead of valid HTML? Like most things, I am sure it is application dependent. My specific situation is where there is substantial content being inserted into the web page that has been pulled from a database. What are the advantages of either approach? Is the size of the content even a concern? Or, in the case of using XML, will the time for the Javascript to process the XML into HTML counterbalance the extra time that would have been required to send HTML to start with? Thanks, Jeff

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• CodePlex Daily Summary for Wednesday, January 26, 2011

  CodePlex Daily Summary for Wednesday, January 26, 2011Popular ReleasesCatel - WPF and Silverlight MVVM library: 1.1: (+) Styles can now be changed dynamically, see Examples application for a how-to (+) ViewModelBase class now have a constructor that allows services injection (+) ViewModelBase services can now be configured by IoC (via Microsoft.Unity) (+) All ViewModelBase services now have a unit test implementation (+) Added IProcessService to run processes from a viewmodel with directly using the process class (which makes it easier to unit test view models) (*) If the HasErrors property of DataObjec...NodeXL: Network Overview, Discovery and Exploration for Excel: NodeXL Excel Template, version 1.0.1.160: The NodeXL Excel template displays a network graph using edge and vertex lists stored in an Excel 2007 or Excel 2010 workbook. What's NewThis release improves NodeXL's Twitter and Pajek features. See the Complete NodeXL Release History for details. Installation StepsFollow these steps to install and use the template: Download the Zip file. Unzip it into any folder. Use WinZip or a similar program, or just right-click the Zip file in Windows Explorer and select "Extract All." Close Ex...MVC Foolproof Validation: Beta 0.9.4042: Fixed a few bugs and added ASP.NET MVC 3 support (Including Unobtrusive JavaScript support).Kooboo CMS: Kooboo CMS 3.0 CTP: Files in this downloadkooboo_CMS.zip: The kooboo application files Content_DBProvider.zip: Additional content database implementation of MSSQL, RavenDB and SQLCE. Default is XML based database. To use them, copy the related dlls into web root bin folder and remove old content provider dlls. Content provider has the name like "Kooboo.CMS.Content.Persistence.SQLServer.dll" View_Engines.zip: Supports of Razor, webform and NVelocity view engine. Copy the dlls into web root bin folder to enable...UOB & ME: UOB ME 2.6: UOB ME 2.6????: ???? V1.0: ???? V1.0 ??Developer Guidance - Onboarding Windows Phone 7: Fuel Tracker Source: Release NotesThis project is almost complete. We'll be making small updates to the code and documentation over the next week or so. We look forward to your feedback. This documentation and accompanying sample application will get you started creating a complete application for Windows Phone 7. You will learn about common developer issues in the context of a simple fuel-tracking application named Fuel Tracker. Some of the tasks that you will learn include the following: Creating a UI that...Password Generator: 2.2: Parallel password generation Password strength calculation ( Same method used by Microsoft here : https://www.microsoft.com/protect/fraud/passwords/checker.aspx ) Minor code refactoringVisual Studio 2010 Architecture Tooling Guidance: Spanish - Architecture Guidance: Francisco Fagas http://geeks.ms/blogs/ffagas, Microsoft Most Valuable Professional (MVP), localized the Visual Studio 2010 Quick Reference Guidance for the Spanish communities, based on http://vsarchitectureguide.codeplex.com/releases/view/47828. Release Notes The guidance is available in a xps-only (default) or complete package. The complete package contains the files in xps, pdf and Office 2007 formats. 2011-01-24 Publish version 1.0 of the Spanish localized bits.ASP.NET MVC Project Awesome, jQuery Ajax helpers (controls): 1.6.2: A rich set of helpers (controls) that you can use to build highly responsive and interactive Ajax-enabled Web applications. These helpers include Autocomplete, AjaxDropdown, Lookup, Confirm Dialog, Popup Form, Popup and Pager the html generation has been optimized, the html page size is much smaller nowFacebook Graph Toolkit: Facebook Graph Toolkit 0.6: new Facebook Graph objects: Application, Page, Post, Comment Improved Intellisense documentation new Graph Api connections: albums, photos, posts, feed, home, friends JSON Toolkit upgraded to version 0.9 (beta release) with bug fixes and new features bug fixed: error when handling empty JSON arrays bug fixed: error when handling JSON array with square or large brackets in the message bug fixed: error when handling JSON obejcts with double quotation in the message bug fixed: erro...Microsoft All-In-One Code Framework: Visual Studio 2008 Code Samples 2011-01-23: Code samples for Visual Studio 2008BloodSim: BloodSim - 1.4.0.0: This version requires an update for WControls.dll. - Removed option to use Old Rune Strike - Fixed an issue that was causing Ratings to not properly update when running Progressive simulations - Ability data is now loaded from an XML file in the BloodSim directory that is user editable. This data will be reloaded each time a fresh simulation is run. - Added toggle for showing Graph window. When unchecked, output data will instead be saved to a text file in the BloodSim directory based on the...MVVM Light Toolkit: MVVM Light Toolkit V3 SP1 (3): Instructions for installation: http://www.galasoft.ch/mvvm/installing/manually/ Includes the hotfix templates for Windows Phone 7 development. This is only relevant if you didn't already install the hotfix described at http://blog.galasoft.ch/archive/2010/07/22/mvvm-light-hotfix-for-windows-phone-7-developer-tools-beta.aspx.Community Forums NNTP bridge: Community Forums NNTP Bridge V42: Release of the Community Forums NNTP Bridge to access the social and anwsers MS forums with a single, open source NNTP bridge. This release has added some features / bugfixes: Bugfix: Decoding of Subject now also supports multi-line subjects (occurs only if you have very long subjects with non-ASCII characters)Minecraft Tools: Minecraft Topographical Survey 1.3: MTS requires version 4 of the .NET Framework - you must download it from Microsoft if you have not previously installed it. This version of MTS adds automatic block list updates, so MTS will recognize blocks added in game updates properly rather than drawing them in bright pink. New in this version of MTS: Support for all new blocks added since the Halloween update Auto-update of blockcolors.xml to support future game updates A splash screen that shows while the program searches for upd...StyleCop for ReSharper: StyleCop for ReSharper 5.1.14996.000: New Features: ============= This release is just compiled against the latest release of JetBrains ReSharper 5.1.1766.4 Previous release: A considerable amount of work has gone into this release: Huge focus on performance around the violation scanning subsystem: - caching added to reduce IO operations around reading and merging of settings files - caching added to reduce creation of expensive objects Users should notice condsiderable perf boost and a decrease in memory usage. Bug Fixes...MediaScout: MediaScout 3.0 Preview 4: Update ReleaseMFCMAPI: January 2011 Release: Build: 6.0.0.1024 Full release notes at SGriffin's blog. If you just want to run the tool, get the executable. If you want to debug it, get the symbol file and the source. The 64 bit build will only work on a machine with Outlook 2010 64 bit installed. All other machines should use the 32 bit build, regardless of the operating system. Facebook BadgeAutoLoL: AutoLoL v1.5.4: Added champion: Renekton Removed automatic file association Fix: The recent files combobox didn't always open a file when an item was selected Fix: Removing a recently opened file caused an errorNew Projects? ! :): AskAnswerDone (? ! :)) is a free and open source Q&A platform. Your user choses a problem they're having (like "ERROR: 123" or "THE PICTURES DONT SHOW"), choses something about the program that they can help with, and gets their answer while helping someone else. Chat by Mibbit.BusinessControl2: BusinessControl project. v. 2Citizen Journalism Network Server: An educational project that will hopefully one day prove useful. Initially a simple ASP.NET MVC 3 implementation of the Atom Publishing Protocol, and later have features for federated servers, geolocation, advanced searching, and ratings.ciws-distr: CIWS distrContentFinder: Help user to find the content in every file in your folder.ContentFinder Support Regex Search and the UI will not freeze any more.CSC446: database driven website done with silverlightElos: Projeto ElosEnhanced Host File Manager: Enhanced Host File Editor / Manager Intended for web development (developers or designers) to switch between development and live easily, hassle free. Full access to the host file is required. It is assumed that host file is at default location: C:\Windows\System32\drivers\etcHelloWorld: As a sample center, HelloWorld sketches the skeletons of most Microsoft development techniques. Each sample is elaborately selected, composed, and documented to demonstrate one frequently-asked/tested/used scenario based on my experience as a support engineer. InkSpot: Adds SVG runtime support to WPF applications.ITaCS Change Password web part: This web part allows users to change their local or Active Directory password from within a MOSS or WSS Site.JoscalSoftware: At JoscalSoftware you can find programs designed (mostly) in Visual Basic 2010 Express. Most programs are to do with text editors, and webbrowsers.K.Frame: A open .net structual for enterprice application with MVC,iBatis.Net,WCF,etc.LogExpert: Windows tail program and log file analyzer.MasterGuitarReader: This project is a free guitar tab readerOpalis Scheduled Tasks Integration Pack: A Opalis integration pack for manipulating scheduled tasks on windows systems.OpenInsure: OpenInsure is an OpenSource Insurance Agent automation system. It is being developed using the .Net 4.0 frame work and is using a SQL 2008 backend. Orchard Hyperlink Custom Field: The Hyperlink module introduces a new field to store hyperlinks as custom types. Includes URL, label, title, and target. It's developed in C# as a plugin to the Orchard CMS project.Orchard Stars: A simple five-star rating Orchard module.PerformancePoint 2010 Content Deployment Tool: The PerformancePoint 2010 Content Deployment Tool is a command-line tool that allows you to deploy PerformancePoint content using an existing ddwx file and can be used to migrate content from development to production or between site collections on the same SharePoint server.Plat Manager / Real Estate management application: The administration module is meant to manage 3 web clients with their real estate databases. The main feature is ability to automatically generate the interface of the module based on the information pulled from the database. PHP, MySQL, MVC Kohana, Doctrene ORM, Ajax, ExtJSSalesManager: SalesManagerSercury: ????????，????WCF??????????????。SGPF: The team does not have nothing to declare here!Sitefinity Social Widgets Contrib: Sitefinity Social Widget Contrib makes it easier for GiveCamp Charities and other Sitefinity users to pull their social feeds into your site. You'll no longer have to build one off controls. It's developed in a combination of C# and JQuery.StackHash Plugin SDK & Sample Plugins (for WinQual / Windows Error Reporting): Plugin SDK and sample command line, email and FogBugz plugins for StackHash. StackHash is a tool that helps developers access crash reports from Microsoft's WinQual service (Windows Error Reporting). The SDK is designed to support synchronizing StackHash data with bug trackers.TIC: ticTwedge: Twedge is a customizable Silverlight-based Twitter badge, showing the latst tweets, based on your specific search term.Web Scripting and Content Creation Code Samples: Sample code used in the Web Scripting and Content Creation course at the University of HertfordshirewebSurfer - a test tool: Windows Workflow Foundation, WWF, test web pagesWLCompus: WLCompusYellow Rice: Yellow RiceZDStar Enterprise Framework: ZDStar Enterprise Framework for Small & Medium Size Enterprises.

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• zlib memory usage / performance. With 500kb of data.

  - by unixman83

  Is zLib Worth it? Are there other better suited compressors? I am using an embedded system. Frequently, I have only 3MB of RAM or less available to my application. So I am considering using zlib to compress my buffers. I am concerned about overhead however. The buffer's average size will be 30kb. This probably won't get compressed by zlib. Anyone know of a good compressor for extremely limited memory environments? However, I will experience occasional maximum buffer sizes of 700kb, with 500kb much more common. Is zlib worth it in this case? Or is the overhead too much to justify? My sole considerations for compression are RAM overhead of algorithm and performance at least as good as zlib.

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• Converting a large SQL Server Database to Azure Storage

  - by Laith

  Hi guys, I have a very large database structure, (Data is not important at this point, I can migrate the info in the db pretty easily if the structure is done) , all reside in SQL Server and I even published it to SQL Azure, but thinking about the limitation of SQL Azure in size, made me decide to switch most of the tables that do not need all the bells and whistles of SQL Azure to Azure Table and blob storage. I was thinking of creating a TT template that dose that, but was wondering if their is a tool that do that. Any ideas or thoughts. The only tables that i would keep in SQL Azure would anything related to transactions like payments. Appreciate your thoughts and advice

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• HTML <select> selected option background-color CSS style

  - by arieltools

  Is there a style for a select option's "selected" color? For example: <HTML> <BODY> <FORM NAME="form1"> <SELECT NAME="mySelect" SIZE="7" style="background-color:red;"> <OPTION>Test 1 <OPTION>Test 2 <OPTION>Test 3 <OPTION>Test 4 <OPTION>Test 5 <OPTION>Test 6 <OPTION>Test 7 </SELECT> </FORM> </BODY> </HTML> When I select an option it turns blue, I want to override this and make it a different color. In the style I expected something like "selected-color", but it doesn't exist.

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• Winforms Hotkey, Help?

  - by Di4g0n4leye

  namespace WebBrowser { public partial class MainForm : Form { public MainForm() { InitializeComponent(); } int GetPixel(int x, int y) { Bitmap bmp = new Bitmap(1, 1, PixelFormat.Format32bppPArgb); Graphics grp = Graphics.FromImage(bmp); grp.CopyFromScreen(new Point(x,y), Point.Empty, new Size(1,1)); grp.Save(); return bmp.GetPixel(0, 0).ToArgb(); } void Button1Click(object sender, EventArgs e) { int x = Cursor.Position.X; int y = Cursor.Position.Y; int pixel = GetPixel(x,y); textBox1.Text = pixel.ToString(); } void MainFormLoad(object sender, EventArgs e) { webBrowser1.Navigate("http://google.com"); } } } } i want to add a hotkey that call Button1 on Press, How can that be done?

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• How to send and receive file on Silverlight application?

  - by Samvel Siradeghyan

  Hi. I am writting Silverlight client-server application. Server part is WinForm application an client part is Silverlight. I use TCP connction. I use sockets for sending and receiving information. But now I need to send a file, size of which may be greater then 1 Mb, so I can't use socets to send that file as bite stream. I wont to send that file form server and receive it on client Silverlight application. How can I do that? Thanks.

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• McAfee Virus Scan and Oracle RAC

  - by Lee Gathercole

  Hi, We're experiencing a strange problem with Oracle RAC and McAfee anti-virus. As part of the installation of the Oracle RAC we disable anti virus as directed. We have had our RAC running fine, but when we came to re-enable the AV and reboot we got the BSOD. Abnormal Program Termination (BugCheck, STOP: 0x00000035 (0x8E984678, 0x00000000, 0x00000000, 0x00000000 NO_MORE_IRP_STACK_LOCATIONS Following the standard process of raising this problem with Microsoft they identify the problem and also a fix. Microsoft talk about too many file filter drivers being present and pushing the DFS upper limit beyond the default size. Upping this value, as per msdn, has no impact. We're able to recover from this BSOD by disabling AV. We don't have the problem if we run the AV service manually whilst the system is up. However, if we make the service automatic we fail to boot. Tech Details 2 Node Oracle 10g Cluster 2 * Windows 2003 SP2, 16GB RAM, Quad Core 3ghz Processor SAN attached storage McAfee VirusScan Enterprise 8.5.0i, Scan Engine (5300.2777), DAT Version (5536.0000) Thanks Lee

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• Calculating string sizes on iPhone on a background thread

  - by jbrennan

  I've got some somewhat hefty string size calculations happening in my app (each one takes close to 500ms, and happens when the user scrolls to a new "page" in my app (like the Weather app). The delay only happens once per page, as the calculation only needs to be run once (and can even be cached for subsequent launches with the same data). Anyway, I still like to not block the UI for this type of work, as to me it screams using threads, but I know UIKit is not meant to be used from other threads. (I know NSString is not part of UIKit, but the string sizing methods are part of the UIKitAdditions...) So how should I go about doing this? What's the best way to not block the UI and do so safely?

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• Tuning OS X Virtual Memory

  - by dcolish

  I've noticed some really odd results form vm_stat on OSX 10.6. According to this, its barely hitting the cache. Searches of pretty much everywhere I could think of turn up little to explain why the rate is so low. I asked a few friends and they're seeing the same thing. What gives and how can I make it better? Mach Virtual Memory Statistics: (page size of 4096 bytes) Pages free: 78609. Pages active: 553411. Pages inactive: 191116. Pages speculative: 6198. Pages wired down: 153998. "Translation faults": 116031508. Pages copy-on-write: 2274338. Pages zero filled: 33360804. Pages reactivated: 264378. Pageins: 1197683. Pageouts: 43756. Object cache: 20 hits of 1550639 lookups (0% hit rate)

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• Doing 64 bit manipulation using 32 bit data in Fixed point arithmetic using C.

  - by Viks

  Hi, I am stuck with a problem. I am working on a hardware which only does support 32 bit operations. sizeof(int64_t) is 4. Sizeof(int) is 4. and I am porting an application which assumes size of int64_t to be 8 bytes. The problem is it has this macro BIG_MULL(a,b) ( (int64_t)(a) * (int64_t)(b) 23) The result is always a 32 bit integer but since my system doesn't support 64 bit operation, it always return me the LSB of the operation, rounding of all the results making my system crash. Can someone help me out? Regards, Vikas Gupta

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• Out of memory error in java

  - by Anuj

  I am getting OutOfMemoryError: java heap snippets of the method: { // step 1: I am creating a 2 dim array int totalCombination = (int) Math.pow(2.0, (double) vowelCount); here vowelCount > 10 // step2: initializing my array // step3: and using that array } My Question: each time this method is called, that array is getting created. Is it possible that the array is not getting released . In windows taskmanager i can see memory used by java is purely incremental. So it is not that at a point heap size is less, but memory is repetitively used and not released somehow. Please let me know if you need more detal. Please help to debug the error. Anuj

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• Strlen of MAX 16 chars string using bitwise operators

  - by fabrizioM

  The challenge is to find the fastest way to determine in C/C++ the length of a c-string using bitwise operations in C. char thestring[16]; The c-string has a max size of 16 chars and is inside a buffer If the string is equal to 16 chars doesn't have the null byte at the end. I am sure can be done but didn't got it right yet. I am working on this at the moment, but assuming the string is memcpied on a zero-filled buffer. len = buff[0] != 0x0 + buff[1] != 0x0 + buff[2] != 0x0 + buff[3] != 0x0 + buff[4] != 0x0 + buff[5] != 0x0 + buff[6] != 0x0 + buff[7] != 0x0 + buff[8] != 0x0 + buff[9] != 0x0 + buff[10] != 0x0 + buff[11] != 0x0 + buff[12] != 0x0 + buff[13] != 0x0 + buff[14] != 0x0 + buff[15] != 0x0;

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