Search Results

Search found 17731 results on 710 pages for 'programming practices'.

Page 400/710 | < Previous Page | 396 397 398 399 400 401 402 403 404 405 406 407  | Next Page >

  • Are Intel and Motorola moving towards a MIPS/RISC model? [closed]

    - by Nick Rosencrantz
    Is it true what I read that Intel and Motorola are moving from CISC to a programming model more like RISC/MIPS? Why? From the famous book "Computer Architecture" by Hennessay which usually is recommended around here: Recent implementations of the x86 architecture actually translate x86 instruction into simple operation that look like MIPS instuctions.... Page 335. What does this mean specifically? Can you show me an example?

    Read the article

  • Should I use OpenGL while working with C++?

    - by Paralytic
    I am completely new to programming and game development for that matter. I am using the C++ software to create my Game Engine with the help of a beginners guide. I noticed it has a OpenGL option when starting up a new project. I've heard of OpenGL pertaining to game development, not sure what it is though. Should I be using OpenGL when creating my Game Engine? Will it matter if I just start with a blank slate?

    Read the article

  • How to Submit to a Computer Directory

    Computer directories are directories developed specifically for site in the computer niche include password management, data industry, information technology, tutorial, programming, and internet. Submitting to computer directories will attract more targeted users to your site compare with general directories.

    Read the article

  • How to Create a Website Using Div Tags

    Websites have been evolved since the beginning of Internet. Internet is now flooded with an endless number of web pages and its demand is increasing due to development in technology. It is not difficult to make a website especially if one is good at using computers and is well equipped with programming.

    Read the article

  • Where do all these Java technologies lead to? [on hold]

    - by user1502178
    For a new job, the HR gave me list of Java technologies to study: JSP/Servlet Ant, Maven Hibernate Spring Core, Spring MVC REST JMS Mongo, Cassandra Solr, Elastic Search I have never been a java guy, but I am ready to learn these, but I need to know where all these technologies lead to, are they worth doing? and how long will they approximately take if I have university level experience in programming and CS?

    Read the article

  • How to work for Ubuntu? [duplicate]

    - by vijay
    This question already has an answer here: How can I contribute to Ubuntu? 4 answers I am very much impressed by Ubuntu. I want to work for it but I know only C language. Can somebody guide me on how to work for Ubuntu. thanks for your reply I don't want to learn any other programming languages. programatically i want to contribute.

    Read the article

  • The Most Effective Way to Run a Professional Business is to Attend an SEO Class

    There are numerous SEO colleges that offer fun, easy and affordable online SEO short courses as well as marketing subjects. There are no special requirements needed and these courses assume zero knowledge and do not require any previous HTML or programming background. In addition to an SEO class you will be provided with links for online tutorials which will supply you with valuable information.

    Read the article

  • Is it good practice to keep 2 related tables (using auto_increment PK) to have the same Max of auto_increment ID when table1 got modified?

    - by Tum
    This question is about good design practice in programming. Let see this example, we have 2 interrelated tables: Table1 textID - text 1 - love.. 2 - men... ... Table2 rID - textID 1 - 1 2 - 2 ... Note: In Table1: textID is auto_increment primary key In Table2: rID is auto_increment primary key & textID is foreign key The relationship is that 1 rID will have 1 and only 1 textID but 1 textID can have a few rID. So, when table1 got modification then table2 should be updated accordingly. Ok, here is a fictitious example. You build a very complicated system. When you modify 1 record in table1, you need to keep track of the related record in table2. To keep track, you can do like this: Option 1: When you modify a record in table1, you will try to modify a related record in table 2. This could be quite hard in term of programming expecially for a very very complicated system. Option 2: instead of modifying a related record in table2, you decided to delete old record in table 2 & insert new one. This is easier for you to program. For example, suppose you are using option2, then when you modify record 1,2,3,....,100 in table1, the table2 will look like this: Table2 rID - textID 101 - 1 102 - 2 ... 200 - 100 This means the Max of auto_increment IDs in table1 is still the same (100) but the Max of auto_increment IDs in table2 already reached 200. what if the user modify many times? if they do then the table2 may run out of records? we can use BigInt but that make the app run slower? Note: If you spend time to program to modify records in table2 when table1 got modified then it will be very hard & thus it will be error prone. But if you just clear the old record & insert new records into table2 then it is much easy to program & thus your program is simpler & less error prone. So, is it good practice to keep 2 related tables (using auto_increment PK) to have the same Max of auto_increment ID when table1 got modified?

    Read the article

  • Colliding Rects [migrated]

    - by user73400
    I have been working on this game, but I have a question when it comes to collision detection. Can I check for collision and have it return True: example: def collide(self, EnemyTank): tank_collision = pygame.sprite.collide_rect(self.rect, EnemyTank.rect) if tank_collision == True: return True And then make it perform an action like this: if player.collide == True: e_tank_x += 0 I am new to programming so please bear with me, I am trying as hard as I can and any comments or suggestions would also be very appreciated.

    Read the article

  • I just started learning the syntax of c++. What now? [closed]

    - by user73924
    I more or less know the syntax of C++, but when I start to write a program, I have nothing to write, I am blank. The thing is I knew the syntax of C as well and I didn't know how to write programs in that either. Though I could understand the written answers of almost anything. So, my question here is how do I start writing my own programs or how do I put my thoughts on any program using any programming language?

    Read the article

  • Java Developer Workshop #2 ??!(12/1)

    - by ksky
    12/1??????????????Java?????????????????????????????(?2?:?1????????)??????!?????????????JavaFX/SE/EE/ME???????????????????????"Polyglot Programming on Java VM"??????Scala?JRuby?Groovy????Java VM??????????????????????????????????????????????????????? ???????Client Java Group?Vice President???JavaFX???????????Nandini Ramani???????????????JavaFX 2.0??????????????????????????Nandini?JavaOne???????????????????????????JavaOne??iPad?Windows?Linux?????????JavaFX???????????????????????? ???????????????????????????JavaOne??????????????Java EE/SE/ME???????????????????????????????????SE 8???????????EE????SE?FX???????ME??????????????????? ???Java VM????!???Scala?????????Scala??????????????????????????Scala????????????????????JRuby????????JRuby/CRuby???????????????????JRuby????????????????????????Groovy????????????????GROOVY???????????????Groovy????Java???????????????????? ???????????Java SE 7?JavaFX 2.0?????????????????Java VM?????????????????????????????! ???????????????????????????????????????????????????????????????????!????????????????????ustream?????????????

    Read the article

  • NserviceBus throws exception when referencing a Nettiers assembly

    - by IGoor
    We use nettiers as a our data layer, and we recently have started looking at using NServiceBus, but we have hit a wall. We have a windows service which hosts NSB and references our Nettiers assembly. the service is throwing an exception when the following line is encountered. var Bus = Configure.With().SpringBuilder() .XmlSerializer() .MsmqTransport() .IsTransactional(false) .PurgeOnStartup(false) .UnicastBus() .ImpersonateSender(false) .CreateBus() .Start(); the exceptions that is throw is: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information. the loader exception message is: Could not load file or assembly 'Microsoft.Practices.Unity, Version=1.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.":"Microsoft.Practices.Unity, Version=1.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 stacktrace is: at System.Reflection.Module._GetTypesInternal(StackCrawlMark& stackMark) at System.Reflection.Assembly.GetTypes() at NServiceBus.Configure.<>c__DisplayClass1.<With>b__0(Assembly a) in d:\BuildAgent-03\work\672d81652eaca4e1\src\config\NServiceBus.Config\Configure.cs:line 122 at System.Array.ForEach[T](T[] array, Action`1 action) at NServiceBus.Configure.With(Assembly[] assemblies) in d:\BuildAgent-03\work\672d81652eaca4e1\src\config\NServiceBus.Config\Configure.cs:line 122 at NServiceBus.Configure.With(IEnumerable`1 assemblies) in d:\BuildAgent-03\work\672d81652eaca4e1\src\config\NServiceBus.Config\Configure.cs:line 111 at NServiceBus.Configure.With(String probeDirectory) in d:\BuildAgent-03\work\672d81652eaca4e1\src\config\NServiceBus.Config\Configure.cs:line 101 at NServiceBus.Configure.With() in d:\BuildAgent-03\work\672d81652eaca4e1\src\config\NServiceBus.Config\Configure.cs:line 78 at MessageSender.Program.Main(String[] args) in C:\Development\NSBTest4\MessageSender\Program.cs:line 18 without the nettiers reference NSB works fine. Any idea what the problem is and how to solve it? thanks.

    Read the article

  • How to reproduce System.Security.Cryptography.SHA1Managed result in Python

    - by joetyson
    Here's the deal: I'm moving a .NET website to Python. I have a database with passwords hashed using the System.Security.Cryptography.SHA1Managed utility. I'm creating the hash in .NET with the following code: string hashedPassword = Cryptographer.CreateHash("MYHasher", userInfo.Password); The MYHasher block looks like this: <add algorithmType="System.Security.Cryptography.SHA1Managed, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=blahblahblah" saltEnabled="true" type="Microsoft.Practices.EnterpriseLibrary.Security.Cryptography.HashAlgorithmProvider, Microsoft.Practices.EnterpriseLibrary.Security.Cryptography, Version=3.0.0.0, Culture=neutral, PublicKeyToken=daahblahdahdah" name="MYHasher" /> So for a given password, I get back and store in the database a 48 byte salted sha1. I assume the last 8 bytes are the salt. I have tried to reproduce the hashing process in python by doing a sha1(salt + password) and sha1(password + salt) but I'm having no luck. My question to you: How are the public keys being used? How is the password rehashed using the salt. How is the salt created? (e.g., When I say saltEnabled="true", what extra magic happens?) I need specific details that don't just reference other .NET libraries, I'm looking for the actual operational logic that happens in the blackbox. Thanks!

    Read the article

  • How to arrange models, views, controllers in a new Kohana 3 project

    - by Pekka
    I'm looking at how to set up a mid-sized web application with Kohana 3. I have implemented MVC patterns in the past but never worked against a "formalized" MVC framework so I'm still getting my head around the terminology - toying around with basic examples, building views and templates, and so on. I'm progressing fairly well but I want to set up a real-world web project (one of my own that I've been planning for quite some time now) as a learning object. Example-based documentation is a bit sparse for Kohana 3 right now - they say so themselves on the site. While I'm not worried about learning the framework soon enough, I'm a bit at a loss on how to arrange a healthy code base from the start - i.e. how to split up controllers, how to name them, and how to separate the functionality into the appropriate models. My application could, in its core, be described as a business directory with a main businesses table. Businesses can be listed by category and by street name. Each business has a detail page. Business owners can log in and edit their business's entry. Businesses can post offers into an offers table. I know this is pretty vague, I'll be more than happy to go into more detail on request. Supposing I have all the basic functionality worked out and in place already - list all businesses, edit business, list businesses by street name, create offer, and so on, and I'm just looking for how to fit the functionality into a Kohana application structure that can be easily extended: Do you know real-life, publicly accessible examples of applications built on Kohana 3 where I could take a peek how they do it? Are there conventions or best practices on how to structure an extendable login area for end users in a Kohana project that is not only able to handle a business directory page, but further products on separate pages as well? Do you know application structuring HOWTOs or best practices for Kohana 3 not mentioned in the user guide and the inofficial Wiki? Have you built something similar and could give me some recommendations?

    Read the article

  • 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!

    Read the article

  • ASP.NET Sql Timeout

    - by Petoj
    Well we have this Asp.Net application that we installed at a customer but now some times we get a SqlException that says "Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding." now the wired thing is that the exception comes instantly when i press the button, this does not happen every time i press the button so its random.. any idea what i could try to pinpoint the problem? We are using the EnterpriseLibrary Database block if that matters... Stack trace: at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlDataReader.ConsumeMetaData() at System.Data.SqlClient.SqlDataReader.get_MetaData() at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) at Microsoft.Practices.EnterpriseLibrary.Data.Database.DoExecuteReader(DbCommand command, CommandBehavior cmdBehavior) at Microsoft.Practices.EnterpriseLibrary.Data.Database.ExecuteReader(DbCommand command)

    Read the article

  • Prism - loading modules causes activation error

    - by Noich
    I've created a small Prism application (using MEF) with the following parts: - Infrastructure project, that contains a global file of region names. - Main project, that has 2 buttons to load other modules. - ModulesInterfaces project, where I've defined an IDataAccess interface for my DataAccess module. - DataAccess project, where there are several files but one main DataAccess class that implements both IDataAccess and IModule. When the user click a button, I want to show him a list of employees, so I need the DataAccess module. My code is as follows: var namesView = new EmployeesListView(); var namesViewModel = new EmployeesListViewModel(employeeRepository); namesView.DataContext = namesViewModel; namesViewModel.EmployeeSelected += EmployeeSelected; LocateManager(); manager.Regions["ContentRegion"].Add(new NoEmployeeView(), "noEmployee"); manager.Regions["NavigationRegion"].Add(namesView); I get an exception in my code when I'm trying to get DataAccess as a service (via ServiceLocator). I'm not sure if that's the right way to go, but trying to get it from the ModuleCatalog (as a type IDataAccess returns an empty enumeration). I'd appreciate some directions. Thanks. The problematic code line: object instance = ServiceLocator.Current.GetInstance(typeof(DataAccess.DataAccess)); The exact exception: Activation error occured while trying to get instance of type DataAccess, key "" The inner exception is null, the stack trace: at Microsoft.Practices.Prism.MefExtensions.MefServiceLocatorAdapter.DoGetInstance(Type serviceType, String key) in c:\release\WorkingDir\PrismLibraryBuild\PrismLibrary\Desktop\Prism.MefExtensions\MefServiceLocatorAdapter.cs:line 76 at Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance(Type serviceType, String key) Edit The same exception is thrown for: container = (CompositionContainer)ServiceLocator.Current.GetInstance(typeof(CompositionContainer));

    Read the article

  • Aren't Information Expert / Tell Don't Ask at odds with Single Responsibility Principle?

    - by moffdub
    It is probably just me, which is why I'm asking the question. Information Expert, Tell Don't Ask, and SRP are often mentioned together as best practices. But I think they are at odds. Here is what I'm talking about: Code that favors SRP but violates Tell Don't Ask, Info Expert: Customer bob = ...; // TransferObjectFactory has to use Customer's accessors to do its work, // violates Tell Don't Ask CustomerDTO dto = TransferObjectFactory.createFrom(bob); Code that favors Tell Don't Ask / Info Expert but violates SRP: Customer bob = ...; // Now Customer is doing more than just representing the domain concept of Customer, // violates SRP CustomerDTO dto = bob.toDTO(); If they are indeed at odds, that's a vindication of my OCD. Otherwise, please fill me in on how these practices can co-exist peacefully. Thank you. Edit: someone wants a definition of the terms - Information Expert: objects that have the data needed for the operation should host the operation Tell Don't Ask: don't ask objects for data in order to do work; tell the objects to do the work Single Responsibility Principle: each object should have a narrowly defined responsibility

    Read the article

  • HTTP Error 500.19 Internal Server Error

    - by Attilah
    I created and deployed a pretty simple WCF Service. but when accessing it from IE, I get this : HTTP Error 500.19 - Internal Server Error Description: The requested page cannot be accessed because the related configuration data for the page is invalid. Error Code: 0x80070005 Notification: BeginRequest Module: IIS Web Core Requested URL: http://localhost:80/ProductsService/ProductsService.svc Physical Path: C:\Users\Administrator\Documents\Visual Studio 2008\Projects\ProductsService\ProductsService\ProductsService.svc Logon User: Not yet determined Logon Method: Not yet determined Handler: Not yet determined Config Error: Cannot read configuration file Config File: \\?\C:\Users\Administrator\Documents\Visual Studio 2008\Projects \ProductsService\ProductsService\web.config Config Source: -1: 0: More Information... This error occurs when there is a problem reading the configuration file for the Web server or Web application. In some cases, the event logs may contain more information about what caused this error. here is the content of my web.config file : <?xml version="1.0" encoding="utf-8" ?> <configuration> <configSections> <section name="dataConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings, Microsoft.Practices.EnterpriseLibrary.Data, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" /> </configSections> <dataConfiguration defaultDatabase="AdventureWorksConnection" /> <connectionStrings> <add name="AdventureWorksConnection" connectionString="Database=AdventureWorks; Server=(localhost)\SQLEXPRESS;Integrated Security=SSPI" providerName="System.Data.SqlClient" /> </connectionStrings> <system.serviceModel> <services> <service name="Products.ProductsService"> <endpoint address="" binding="basicHttpBinding" contract="Products.IProductsService" /> </service> </services> </system.serviceModel> </configuration>

    Read the article

  • Set the property hibernate.dialect error message

    - by user281180
    I am having the following error when configuring mvc3 and Nhibernate. Can anyone guide me what I have missed please. the dialect was not set. Set the property hibernate.dialect. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: NHibernate.HibernateException: The dialect was not set. Set the property hibernate.dialect. Source Error: Line 16: { Line 17: NHibernate.Cfg.Configuration configuration = new NHibernate.Cfg.Configuration(); Line 18: configuration.AddAssembly(System.Reflection.Assembly.GetExecutingAssembly()); Line 19: sessionFactory = configuration.BuildSessionFactory(); Line 20: } My web.config is as follows: <configSections> <section name="cachingConfiguration"type="Microsoft.Practices.EnterpriseLibrary.Caching.Configuration.CacheManagerSettings,Microsoft.Practices.EnterpriseLibrary.Caching"/> <section name="log4net"type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/> <section name="hibernate-configuration"type="NHibernate.Cfg.ConfigurationSectionHandler, NHibernate"/ <appSettings> <add key="BusinessObjectAssemblies" value="Keeper.API"></add> <add key="ConnectionString" value="Server=localhost\SQLSERVER2005;Database=KeeperDev;User=test;Pwd=test;"></add> <add key="ClientValidationEnabled" value="true"/> <add key="UnobtrusiveJavaScriptEnabled" value="true"/> </appSettings> <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2"> <session-factory> <property name="dialect">NHibernate.Dialect.MsSql2000Dialect</property> <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property> <property name="connection.connection_string">Server=localhost\SQLServer2005;Database=KeeperDev;User=test;Pwd=test;</property> <property name="proxyfactory.factory_class">NHibernate.ByteCode.Castle.ProxyFactoryFactory, NHibernate.ByteCode.Castle</property> </session-factory> </hibernate-configuration>

    Read the article

  • Using generics in Unity ... InvalidCastException

    - by Sunny D
    Hi, My interface definition is: public interface IInterface where T:UserControl My class definition is: public partial class App1Control : UserControl, IInterface The unity section of my app.config looks as below: <unity> <typeAliases> <typeAlias alias="singleton" type="Microsoft.Practices.Unity.ContainerControlledLifetimeManager, Microsoft.Practices.Unity" /> <typeAlias alias="myInterface" type="MyApplication.IInterface`1, MyApplication" /> <typeAlias alias="App1" type="MyApplication.App1Control, MyApplication" /> </typeAliases> <containers> <container> <types> <type type="myInterface" mapTo="App1" name="Application 1"> <lifetime type="singleton"/> </type> </types> </container> </containers> </unity> The app runs fine but, the following code gives a InvalidCastException container.Resolve<IInterface<UserControl>>("Application 1"); The error message is : Unable to cast object of type 'MyApplication.App1Control' to type 'MyApplication.IInterface`1[System.Windows.Forms.UserControl]' I believe there is a minor mistake in my code ... but am not able to figure out what. Any thoughts?

    Read the article

  • How to not specify ruleset name when reading from config file?

    - by user102533
    When I read rules from a configuration file, I do something like this: IConfigurationSource configurationSource = new FileConfigurationSource("myvalidation.config"); var validator = ValidationFactory.CreateValidator<Salary>(configurationSource); The config file looks like this: <ruleset name="Default"> <properties> <property name="Address"> <validator lowerBound="10" lowerBoundType="Inclusive" upperBound="15" upperBoundType="Inclusive" negated="false" messageTemplate="" messageTemplateResourceName="" messageTemplateResourceType="" tag="" type="Microsoft.Practices.EnterpriseLibrary.Validation.Validators.StringLengthValidator, Microsoft.Practices.EnterpriseLibrary.Validation, Version=4.1.0.0, Culture=neutral, PublicKeyToken=null" name="String Length Validator" /> </property> </properties> </ruleset> My question is - is there a way to not specify the ruleset name? It's not required for me to specify a ruleset name if I am using the attribute approach and I can validate using: ValidationResults results = Validation.Validate(salary); Now when reading from config files, I have to specify the ruleset name. There is no overload of the CreateValidator method that accepts the configuration source without specifying the ruleset name. Also, the xml in the config file requires a name attribute for ruleset

    Read the article

< Previous Page | 396 397 398 399 400 401 402 403 404 405 406 407  | Next Page >