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• Can't open Minecraft with java

  - by Shingaling

  I know this has been asked here before, but none of the solutions have worked for me. I have a fresh install of Ubuntu 12.04 on my system and I installed Open Java 7 and I downloaded Minecraft. I right clicked Minecraft went to properties and set it as an executable and then went to open with and Java is no where to be found in the list. I made a new Java desktop file in /usr/share/applications and now when I go to the list Java is there and I set Minecraft to open with it by default but when I open it nothing at all happens. Now how am I supposed to get Minecraft to work?

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• Master Data Management - The Trend Towards Multi-Domain and Other Realities

  - by Mala Narasimharajan

  In my quest to keep my fingers on the pulse of MDM, I recently found a pretty interesting article.  The article was published in Information Week and provides some interesting statistics from a recent survey conducted by the analyst firm, The Information Difference.  Let's take a look: Of the 130 organizations surveyed, 53% have live operational MDM implementations 81% of those with live operational MDM implementations report broad success - a huge improvement over 2011's 54% 64% developed a business case prior to their MDM deployment, while a daring 32% went ahead without a business case.    The article goes on to talk about the shift in vendors from focusing on customer data and product information management to one that is oriented around multi-domain master data management as well as other realities around MDM.  Take a look at the article. For more information on Oracle's master data management suite, click here. 

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• Help with intel Imac 2008 Audio not working

  - by Tomtom

  I installed Ubuntu 12.04 and I get no audio except if i insert speakers and set them as headphones. This means really weird feedback and little volume. i'd like to set it back to the mac's default speakers but currently no matter what graphical interface i go into such as Audio or Alsamixer i can not fix the problem.Ive run alsamixer and looked thoroughly throught the forums but cannot find the answer to my problem. When i input cat /proc/asound/cards i get 0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0x50600000 irq 47 Any help would be very much appreciated and as a newcomer i would be glad to give you any information you need. Thank you

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• Samba user does not have folder read permission

  - by user289455

  I have set up a special user for read only samba shares. I set him up in Samba and as a system user. I shared a couple of folders but that user cannot access them. I know samba is working because I also shared them with the main user of the system which is an admin account and it works fine. How can I allow this user to have read permissions on all the directories I want to share without changing anything for any other users of the system? For example, I don't want to give him ownership of any of the files/directories. Just ongoing recursive read access. ongoing recursive is important. If someone adds a file or directory, I still want him to automatically be able to read it.

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• Flash site loads slowly

  - by bogdanvursu

  I have a simple html page that embeds an swf, that downloads other xml, swf and image files. The total count of the requests reaches about 90. I am aware that it should take a while until the content is available and I am OK with that. All the needed files are hosted by two different providers in the US: flashxml.net/monochrome-demo.html and u1.flashcomponents.net/samples/8751/index.html From two different countries in Europe, the content shows up a lot later (almost twice as later) from flashxml, than flashcomponents. I've done mtr tests and the ping difference is about 40ms and the flashxml server load is below 1. Do you have any other suggestions as to what should I look at?

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• How to create a JMS durable subscriber in WebLogic Server?

  - by lmestre

  WebLogic Server Provides a set of examples that are very helpful to get started with Weblogic ServerHere you can check how to install the examples:http://docs.oracle.com/cd/E23943_01/doc.1111/e14142/prepare.htmAfter you have installed the examples, you can find the example you want to review, in this case TopicReceive, here:wlserver_10.3/samples/server/examples/src/examples/jms/topicTo review details of the specific example, you can open:wlserver_10.3/samples/server/examples/src/examples/jms/topic/instructions.htmlTo create a Durable Subscriber, you can just set the client ID  and invoke createDurableSubscriber instead of calling createSubscriber, i.e.:    tconFactory = (TopicConnectionFactory)       PortableRemoteObject.narrow(ctx.lookup(JMS_FACTORY),                                   TopicConnectionFactory.class);    tcon = tconFactory.createTopicConnection();    //Set Client ID for this Durable Subscriber    tcon.setClientID("GT2");    tsession = tcon.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);    topic = (Topic)       PortableRemoteObject.narrow(ctx.lookup(topicName),                                   Topic.class);    // Create Durable Subscription    tsubscriber = tsession.createDurableSubscriber(topic, "Test");    tsubscriber.setMessageListener(this);    tcon.start(); Enjoy!   You can read more about this here:http://docs.oracle.com/cd/E23943_01/web.1111/e13727/advpubsub.htm#CHDEBABChttp://docs.oracle.com/cd/E23943_01/web.1111/e13727/manage_apps.htm#i1097671    http://docs.oracle.com/cd/E23943_01/apirefs.1111/e13943/WebLogic.Messaging.ISession.CreateDurableSubscriber_overload_2.html

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• Trust External Surround Soundcard SC-5500p not working

  - by Ederico

  I got the following external sound card to make some awesome noise with my speaker set. It should be plug and play, but it so happens that when I plug it in and hook everything up, there's no sound at all. The speaker set I have works if I plug it in the laptop directly (or rather, if I plug the front speakers cable as I can't plug anything else). http://www.trust.com/products/product.aspx?artnr=14134 Would anyone know how I can workaround this problem and make full use of this external sound card on my Ubuntu 12.04 system?

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• big lie about programmer [closed]

  - by gcc

  About computer engineering/ computer science, Can you give me big lie ? ex : - There is no need to attend school ( study computer engineering ). Because every one can code ( write program ) - Programmer cannot do web design , they can only write code - there are no difference between software engineer and coder EDIT: A lie is a type of deception in the form of an untruthful statement, especially with the intention to deceive others. Why someone try to deceive other people especially customer ? I think they try to prove they are real computer engineer without having diploma in computer science. If you look in that manner to my answer you can easily understand what I want

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• What's the reason exceptions are heavily used in managed (C# and Java) languages but not in C++? [on hold]

  - by ZijingWu

  AFAIK, a lot of C++ projects don't allow exceptions and deny them in coding guidelines. I have a lot of reasons, for example, exception is hard to handle correctly if your binary needs to be compiled by separate and different compilers. But it doesn't fully convince me, there is a lot of projects which are just using one compiler. Compared to C++, exceptions are heavily used in C# and Java and the reason can only be that exception are not bringing enough benefit. One point is debugbility in practice. Exception can not get the call stack in C++ code, but in C# and Java you can get the call stack from exception, it is significant and makes debugging easier. No-callstack is not the fault of the exception, it is the language difference, but it impacts the exception usage. So what's the reason that exceptions are frowned upon in c++ programs?

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• How to pass information across domains to ask for newsletter only once?

  - by Michal Stefanow

  Lets assume following scenario, I have two sites: example1.com example2.com When user visits 1 there is a prompt "please signup to a newsletter". Same thing happens when user visits 2. However when navigating from 1 to 2 I don't want signup form to be shown. My first thought were 3rd-party cookies, but it seems that they are blocked / not working: http://stackoverflow.com/questions/4701922/how-does-facebook-set-cross-domain-cookies-for-iframes-on-canvas-pages?rq=1 http://stackoverflow.com/questions/172223/how-do-i-set-cookies-from-outside-domains-inside-iframes-in-safari?rq=1 Another thought is to append #noshow for each URL but that would require some work - for instance a script that would intercept click / tap events and modify URL structure depending on the address. (but that seems hacky) I wonder if you know a robust well-established solution to this issue? Thanks

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• ACPI Events not triggered after booting

  - by user3208188

  I purchased a Convertible (Laptop and Tablet, Ubuntu 14.04 installed) and would like to execute a script when changing from laptop to tablet mode and the other way around. So I created two new files within the /etc/acpi/events folder corresponding to two new scripts in the /etc/acpi folder. Everything works well if I create a new acpid process (e.g "sudo acpid -c /etc/acpi/events -s /var/run/acpid.socket") manually. However, if I do not initiate this process manually the scripts are not executed, even though there is a process running with the same options right after the machine has booted by default. The only difference I can find is the parent pid. If I create the process the parent is "init --user", while the parent of the automatically initiated process is "/sbin/init". Can anyone help me by explaining why this issue happens and how I can avoid to start an acpid process manually every time I boot the device?

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• What command are my volume keys running?

  - by user2787904

  In Unity I use my ThinkPad hot keys to change the volume. I need to know the command that these keys run so that I can bind it in my window manager. I have tried using amixer but could not change the volume through command line amixer set Master 10%- amixer: Unable to find simple control 'Master',0 amixer scontrols: Simple mixer control 'IEC958',0 amixer set 'IEC958' 50%- amixer: Invalid command! So obviously this is not what Unity is running. I have tried changing the default sound card as well but that didn't help.

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• How to build completely modular web applications

  - by Webnet

  In the coming months we're going to begin a project where we take a system we've built for a client (v1) and rebuild it from scratch. Our goal with v2 is to make it modular, so that this specific client will have their own set of modules they use, then another client may use a different set of modules altogether. The trick here is that Company A might have a series of checkout and user modules that change how that system works. Company B might stick with the standard checkout procedure but customize how products are browsed. What are some good approaches to application architecture when you're building an application from scratch that you want to have a Core that's shared among all clients while still maintaining the flexability for anything to be modified specifically for a client? I've seen CodeIgniter's hooks and don't think that's a good solution as we could end up with 250 hooks and it's still not flexible enough. What are some other solutions? Ideally we won't need to draw a line in the sand.

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• Wrong download of Ubuntu 13.10 desktop: AMD instead of wanted Intel [duplicate]

  - by L. Williams

  This question already has an answer here: Difference between the i386 download and the amd64? 5 answers My PCs are Intel CPUs e.g. Core2 Quad, 64 bit, no AMD in network, but from ubuntu.com/download site, selecting 13.10 Desktop for 64 bit, it repeatedly only offers *AMD.ISO version, which of course fails to install on my Intel (or Atom) based PCs. Wuzzup, and what URL has a download for the Intel CPU systems? Rem: this is for Saucy 13.10 Desktop 64 OS ISO. TIA.

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• Processing a stream. Must layers be violated?

  - by Lord Tydus

  Theoretical situation: One trillion foobars are stored in a text file (no fancy databases). Each foobar must have some business logic executed on it. A set of 1 trillion will not fit in memory so the data layer cannot return a big set to the business layer. Instead they are to be streamed in 1 foobar at a time, and have business logic execute on 1 foobar at a time. The stream must be closed when finished. In order for the stream to be closed the business layer must close the stream (a data operation detail), thus violating the separation of concerns. Is it possible to incrementally process data without violating layers?

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• EF Doesn't Like Same Named Tables

  - by Anthony Trudeau

  Originally posted on: http://geekswithblogs.net/tonyt/archive/2013/07/02/153327.aspxIt's another week and another restriction imposed by the Entity Framework (EF). Don't get me wrong. I like EF, but I don't like how it restricts you in different ways. At this point you may be asking yourself the question: how can you have more than one table with the same name?The answer is to have tables in different schemas. I do this to partition the data based on the area of concern. It allows security to be assigned conveniently. A lot of people don't use schemas. I love them. But this article isn't about schemas.In the situation I have two tables:Contact.PersonEmployee.PersonThe first contains the basic, more public information such as the name. The second contains mostly HR specific information. I then mapped these tables to two classes. I stuck to a Table per Class (TPC) mapping, because of problems I've had in the past implementing inheritance with EF. The following code gives you the basic contents of the classes.[Table("Person", Schema = "Employee")]public class Employee {   ...   public int PersonId { get; set; }   [ForeignKey("PersonId")]   public virtual Person Person { get; set; }}[Table("Person", Schema = "Contact")]public class Person {   [Key]   public int Id { get; set; }   ...}This seemingly simple scenario just doesn't work. The problem occurs when you try to add a Person to the DbContext. You get an InvalidOperationException with the following text:The entity types 'Employee' and 'Person' cannot share table 'People' because they are not in the same type hierarchy or do not have a valid one to one foreign key relationship with matching primary keys between them..This is interesting for a couple of reasons. First, there is no People table in my database. Second, I have used the SetInitializer method to stop a database from being created, so it shouldn't be thinking about new tables.The solution to my problem was to change the name of my Employee.Person table. I decided to name it Employee.Employee. It's not ideal, but it gets me past the EF limitation. I hope that this article will help someone else that has the same problem.

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• Minecraft Coding Pack: Stair block texture

  - by JamerTheProgrammer

  I have MCP setup and working nicely. I would like to make another stair block. I have copied the wooden stair block file and then pasted it and renamed it BlahStairBlock. I'm trying to set a texture for the stair block but it wont work. public int getBlockTextureFromSide(int side) { if(i==side) { // Workshop top return 43; } return blockIndexInTexture; } This is what I'm using to set the texture.... It just isn't working. Any ideas of why?

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• Oracle Linux sort en version 6.3 : améliorations du système de fichiers Btrfs, des performances et optimisations du Kernel

  Oracle Linux sort en version 6.3 améliorations du système de fichiers Btrfs, des performances et optimisations du Kernel Oracle a publié récemment la version 6.3 de son système d'exploitation Oracle Linux. Créée à partir du clonage des sources de la distribution Red Hat Enterprise Linux (RHEL), cette mouture contient toutes les améliorations et nouveautés de RHEL 6.3. La plus grande différence entre Oracle Linux 6.3 et RHEL 6.3 est l'utilisation du noyau optimisé 2.6.39, qui dispose de plusieurs améliorations et corrections par rapport à l'original, et l'installation par défaut de « Unbreakable Enterprise Kernel 3.0.16 ». Oracle Linux 6.3 propose également la mise à jour de plusi...

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• Help with tracking sub domain

  - by roobus

  I currently have my app's marketing/external website on the root level, e.g. http://example.com My web app itself is hosted at: http://app.example.com What's the best strategy to set-up Google Analytics tracking for both of them? Should I create a separate web property? Also, what's the difference between creating a new web property and a new profile? UPDATE: I would want to be able to track conversion from a page on the root domain to a sign-up page on the app sub-domain.

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• SQL Saturday #226 - South Florida

  SQLSaturday is a training event for SQL Server professionals and those wanting to learn about SQL Server. This event will be held Jun 29 2013 in Davie, FL. Admittance to this event is free, all costs are covered by donations and sponsorships. Please register soon as seating is limited, and let friends and colleages know about the event. Free eBook! SQL Server Transaction Log ManagementFind out how understanding how log files work makes all the difference in a crisis. Then try SQL Backup Pro to put the tips into practice. Download your free resources now.

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• Is this a pattern? Should it be?

  - by Arkadiy

  The following is more of a statement than a question - it describes something that may be a pattern. The question is: is this a known pattern? Or, if it's not, should it be? I've had a situation where I had to iterate over two dissimilar multi-layer data structures and copy information from one to the other. Depending on particular use case, I had around eight different kinds of layers, combined in about eight different combinations: A-B-C B-C A-C D-E A-D-E and so on After a few unsuccessful attempts to factor out the repetition of per-layer iteration code, I realized that the key difficulty in this refactoring was the fact that the bottom level needed access to data gathered at higher levels. To explicitly accommodate this requirement, I introduced IterationContext class with a number of get() and set() methods for accumulating the necessary information. In the end, I had the following class structure: class Iterator { virtual void iterateOver(const Structure &dataStructure1, IterationContext &ctx) const = 0; }; class RecursingIterator : public Iterator { RecursingIterator(const Iterator &below); }; class IterateOverA : public RecursingIterator { virtual void iterateOver(const Structure &dataStructure1, IterationContext &ctx) const { // Iterate over members in dataStructure1 // locate corresponding item in dataStructure2 (passed via context) // and set it in the context // invoke the sub-iterator }; class IterateOverB : public RecursingIterator { virtual void iterateOver(const Structure &dataStructure1, IterationContext &ctx) const { // iterate over members dataStructure2 (form context) // set dataStructure2's item in the context // locate corresponding item in dataStructure2 (passed via context) // invoke the sub-iterator }; void main() { class FinalCopy : public Iterator { virtual void iterateOver(const Structure &dataStructure1, IterationContext &ctx) const { // copy data from structure 1 to structure 2 in the context, // using some data from higher levels as needed } } IterationContext ctx(dateStructure2); IterateOverA(IterateOverB(FinalCopy())).iterate(dataStructure1, ctx); } It so happens that dataStructure1 is a uniform data structure, similar to XML DOM in that respect, while dataStructure2 is a legacy data structure made of various structs and arrays. This allows me to pass dataStructure1 outside of the context for convenience. In general, either side of the iteration or both sides may be passed via context, as convenient. The key situation points are: complicated code that needs to be invoked in "layers", with multiple combinations of layer types possible at the bottom layer, the information from top layers needs to be visible. The key implementation points are: use of context class to access the data from all levels of iteration complicated iteration code encapsulated in implementation of pure virtual function two interfaces - one aware of underlying iterator, one not aware of it. use of const & to simplify the usage syntax.

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• ubuntu 12.04: Why my laptop is consuming more power than 11.10?

  - by sanz

  I had 11.10 X86 on my Asus laptop (sandybridge, Nvidia 520M). I had 8 hours' battery life with Bumblebee and Jupiter. Average battery discharge rate was around 10w. Later I changed, not upgraded, to 12.04.1 AMD64. I installed Jupiter. But there is no "restricted drivers" available so I guess Bumblebee will not work. So I removed nvidia drivers. Now I only get 4 hours' battery life. Average battery discharge rate is around 19w. The removal of nvidia driver did not make any difference. What's the cause? Nvidia video card not disabled or 64b version of Ubuntu?

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• Is there a way to forward emails associated with a domain without a mail server?

  - by MeltingDog

  A client owns example1.com but wants to also purchase example2.com and have it point to their original site at example1.com. No problem there. But they also want any emails going to example2.com to be forwarded to their counter parts at example1.com Eg: if someone emails [email protected] it will be forwarded to [email protected] They only way I can think of doing this at the moment is to set up host for example2.com and then set up mail forwarders in cpanel. But this seems a bit excessive and costly. Does anyone know another, cheaper way of doing this?

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• AdWords traffic not (properly) reflected in Analytics

  - by CJM

  I have an AdWords account, which was set to use Auto-tagging of URLs. When looking at the Analytics account for that site, I couldn't find any reference to AdWords traffic either in the Advertising section or the Traffic Sources section. So I manually constructed the URL tags, and updated the Campaign Ad. Once the ad was approved and the clicks started coming through again, I could see the results in the Traffic Sources section of Analytics. In the Sources Campaigns section, my campaign was listed, and under Sources All Traffic, it was registering the same level of traffic from google/adwords. However, the Advertising AdWords section is still drawing a blank. Any ideas? Are there explicit steps needed to enable full tracking of AdWords campaigns? If it is relevant, the Adwords campaign was set up with one account, and the Analytics tracking with another, but both accounts have full access to both AdWords and Analytics.

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• Which is the appropriate content-type meta tag value?

  - by Argoron

  I have a question about the meta tag content-type. When starting to build my site (HTML+PHP+JS), I copied a lot of the meta tags over from elsewhere, and I have, amongst others, the following: <meta http-equiv="content-type" content="application/xhtml+xml; charset=iso-8859-1" /> Now, I've seen that tag is being used a lot with the value "text/html". I've been searching the web but could not find a comprehensive explanation regarding what the difference between both is. The "text/html" intuitively sounds more straightforward to me. Should I change my tag to that, or might the "application/xhtml+xml" be an equivalent solution ? Alternatively, can anyone point me to a resource where the different values for these tags are listed and explained in a clear manner? Thanks in advance

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