Search Results

Search found 37931 results on 1518 pages for 'computer case'.

Page 551/1518 | < Previous Page | 547 548 549 550 551 552 553 554 555 556 557 558  | Next Page >

  • Why should most logic be in the monitor objects and not in the thread objects when writing concurrent software in Java?

    - by refuser
    When I took the Realtime and Concurrent programming course our lecturer told us that when writing concurrent programs in Java and using monitors, most of the logic should be in the monitor and as little as possible in the threads that access it. I never really understood why and I really would like to. Let me clarify. In this particular case we had several classes. Lift extends Thread Person extends Thread LiftView Monitor, all methods synchronized. This is nothing we came up with, our task was to implement a lift simulation with persons waiting on different floors, and theses were the class skeletons that were given. Then our lecturer said to implement most of the logic in the monitor (he was talking about class Monitor as THE monitor) and as little as possible in the threads. Why would he make a statement like that?

    Read the article

  • Contact YouTube

    - by takeshin
    Is there any direct way do contact a „real” person, an YouTube employer? Someone created an account for the company I work for (previous employer). She entered some password and e-mail. The provided e-mail was valid, but since last login (more than two years), we changed our domain, and this e-mail is probably not valid anymore (and we even don't know it), co we can't use option to reset password. I have used all the options in YouTube help center, and no one worked. Also we can't contact this previous employer to get any data she entered in the registration form. The only data I know is the username. All the movies present the products of our company, there are links to our site in movie descriptions, so there should be no problem to prove that the account is ours. This is an urgent case, becouse the movies contain outdated information.

    Read the article

  • What is the relationship between the business logic layer and the data access layer?

    - by Matt Fenwick
    I'm working on an MVC-ish app (I'm not very experienced with MVC, hence the "-ish"). My model and data access layer are hard to test because they're very tightly coupled, so I'm trying to uncouple them. What is the nature of the relationship between them? Should just the model know about the DAL? Should just the DAL know about the model? Or should both the model and the DAL be listeners of the other? In my specific case, it's: a web application the model is client-side (javascript) the data is accessed from the back-end using Ajax persistence/back-end is currently PHP/MySQL, but may have to switch to Python/GoogleDataStore on the GAE

    Read the article

  • Spring can commit Transaction in finally block with RunTimeException in try block [migrated]

    - by Chance Lai
    The project used Spring + Hibernate Sample code: public void method(){ try{ dao.saveA(entityA); throw RuntimeException; dao.saveB(entityB); }catch(RuntimeException e){ throw e; }finally{ dao.saveC(entityC) } } Finally, just entityC will be saved in database in test. I think saveA, saveB, saveC in the same transaction,they should not be committed. In this case, I want to know why entityC is committed. How does Spring do this in the finally block?

    Read the article

  • Career in Game Development

    - by cantbereached
    Hello, I currently study computer engineering and I want to lead my career towards game industry which I always want to be a part of. But I am not sure where to start. I applied some of the companies in the industry for internship and so but most of them wants experience and some work in game developing. Many asks whether I developed a simple game or something similar which I haven't done so far. I am proficient at C, C++, Java, JS, HTML etc. Any tips from people experienced in the industry on where to start ?

    Read the article

  • Upgraded to 11.10 lost personal folders, Ubuntu one shows no files

    - by Kevin
    Upgraded to 11.04, from 10.10 system would only come up in terminal mode, but it told me that an additional upgrade was available and did I want to do that. Foolishly thinking that might fix the problem, I said yes. This time it did not make it all the way through the upgrade, when I came back to the computer over an hour later, the screen was filled with an error message "could not open display", had to reboot. Went to recovery mode on reboot to install nvidia module, when I rebooted system came up fine, but without carrying over my personal folders, I have the home folder, but no personal named folder in it. Came to Ubuntu One, but gives error message; File Sync error. (org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked Is the a way around this in order to restore my files? I know my files existed on Ubuntu one as of a few months ago.

    Read the article

  • How do i fight spam against my mail servers ?

    - by tawfekov
    Hello , the problem I am having is the ability to fight spammers who add unsubscribe form this mail list by clicking here into their spam emails , turns out i am not the only suffer form this , gmail don't filter these mail as well . i made a simple test case , created an email on gmail and contacted one the spammer asking him to add my address to his list such a bad idea :P and google thought that i am already subscribed to that list and put it in my inbox . these kind of spammer uses many accounts to send their spam which make this job much harder how do i report those spammer , and block them in gmail or mail mail servers ?? what is the fastest way to do that ???

    Read the article

  • How to explain OOP concepts to a non technical person?

    - by John
    I often try to avoid telling people I'm a programmer because most of the time I end up explaining to them what that really means. When I tell them I'm programming in Java they often ask general questions about the language and how it differs from x and y. I'm also not good at explaining things because 1) I don't have that much experience in the field and 2) I really hate explaining things to non-technical people. They say that you truly understand things once you explain them to someone else, in this case how would you explain OOP terminology and concepts to a non technical person?

    Read the article

  • How do you put a database online?

    - by Dezrik
    I have a very beginner question regarding web development. I've had some experience with JSP, Hibernate, and MAMP to create a simple system for tracking inventory and sales. But this was all done locally on one computer. This time, I want to create a system that could be accessible online. It's to help my mother track her business wherever she goes. So there would be similar aspects like tracking inventory and sales. I understand that you have to have a server in which to host all the files in. But I don't understand how you can access your database online. Or what sorts of applications or products should be used. Currently the host of my database is localhost. How do put it online such that you can still do CRUD operations? Are there any guides to do this?

    Read the article

  • suspend not working

    - by Eric
    I am running 13.10 on an ASUS 101-SE netbook. Under "power settings" I have selected suspend when inactive for 10 minutes and suspend when lid is closed. I get a warning when inactive that the computer will suspend due to inactivity, but it does not suspend either from that condition or when closing the lid. I seem to be getting multiple suspend messages as I need to click "cancel" or "OK" many times to get the error window to close when it has been inactive for some time. Anyone have any tips? Thank you.

    Read the article

  • How to deal with social login

    - by Matteo Pagliazzi
    In my new web app I'm going to allow social login through Twitter (maybe), Facebook and Google and I'm in search of the best way to do it. Actually I'm using Rails with Devise + Omniauth and this is the problem: Should I ask the user to choose a password so that he can login without a social network? Or maybe the user should be able to set a password if he want (for example when editing his account?) The second way seems the best one but since Twitter doesn't provide user email and google doesn't provide an username I'll probably have to ask the user for username/email when he log in so in that case I may also ask for the password... waht do you think?

    Read the article

  • front usb wont mount harddrives, internal usb ports do

    - by Thesgsuser
    I have noticed something in my new build, i am using Ubuntu desktop newest version my motherboard is the asus f1a75-m pro R2.0 with the usb ports in the back all my NTFS hard disks or usb sticks work fine, but then.. when i put them in the front usb ports of my chassis (silverstone milo ml-03) they wont mount... I have 2 usb 3.0 ports in front of the case connected with a internal usb 3.0 header. But i verified that the usb 3.0 ports on the back do mount the harddisk so it has nothing to do with usb 3.0 i think. The strange thing is, my mouse works fine on the front usb ports. Every usb hardware piece seems to work except if it has any memory inside it :( What seems to be the problem?

    Read the article

  • Can't boot freshly burned Ubuntu cd

    - by user89004
    So I just burned a Ubuntu 12.04.1 powerpc .iso on a cd for my iMac G5 running Mac OS X 10.4.11 and it won't even recognize the cd. I burned it on my dad's Windows 7 laptop as the process is way easier (just 2 clicks). Mac OS X 10.4.11 gives me an error when it starts and when the CD is in saying "the disk you inserted was not readable by this computer". What's funny is that I burned a Ubuntu Minimal .iso on a CD and it would totally read that and even boot it though it gave me some errors afterwards and I couldn't install. I even tried going into openfirmware and hitting boot cd:,\tbxi but I get the error "Warning sector size mismatch can't OPEN cd:,\tbxi Can't open device or file" Was there something wrong with the .iso I burned? Mac OS X 10.4.11 won't even mount that .iso it tells me that the HFS file system is corrupt or something, but I know the .iso doesn't contain HFS file system. Any help? I downloaded the .iso from http://cdimage.ubuntu.com/releases/precise/release/ubuntu-12.04-desktop-powerpc.iso

    Read the article

  • Dell Inspiron touchpad not working

    - by Bobby
    I own a Dell Inspiron on which I installed 12.04 on. Everything was working great up until a couple of weeks ago when the Touchpad stopped working. It doesn't show up in mouse/touchpad settings either. I was wondering if anyone has had the same problem with 12.04 and was able to fix it. I am a noob when it comes to computer code and stuff like that, so please try to keep the answer noob proof. Also, does anyone know if the guys behind Ubuntu will have an update to fix this problem?

    Read the article

  • Why did Ubuntu and Windows start hanging mysteriously after I took a vacation?

    - by Ashrey Goel
    I installed Ubuntu alongside my Windows 7, after partitioning my HDD using Easeus partitioning manager. It was working perfectly, no problems, no data lost or corruption. Then I went away for 2 days and in my absence I don't know what happened in that period, now both Windows 7 and Ubuntu keep hanging continuously, like when you paint and change a brush it'll hang, I mean on very simple commands and I know my computer does not hang on such petty things. I use it for developing music and the specification are: Model: DELL-XPS Processor: Intel i5, 2.53 GHz RAM/Memory: 4GB Hard disk size: 500GB HDD Windows 7 partition: 417 GB Ubuntu Partition: 50 GB Please Help.

    Read the article

  • Rotate an image in a scaled context

    - by nathan
    Here is my working piece of code to rotate an image toward a point (in my case, the mouse cursor). float dx = newx - ploc.x; float dy = newy - ploc.y; float angle = (float) Math.toDegrees(Math.atan2(dy, dx)); Where ploc is the location of the image i'm rotating. And here is the rendering code: g.rotate(loc.x + width / 2, loc.y + height / 2, angle); g.drawImage(frame, loc.x, loc.y); Where loc is the location of the image and "width" and "height" are respectively the width and height of the image. What changes are needed to make it works on a scaled context? e.g make it works with something like g.scale(sx, sy).

    Read the article

  • Ubuntu server 13 hangs on boot

    - by Slava Fomin II
    I formatted my WD30EFRX 3TB SATA HDD as GPT with the following layout: 200 MB FAT32 (BOOTABLE) 50GB EXT4 (Mount point: /) 4 GB SWAP SPACE ~2.9 TB EXT4 (with no mount point) Then i created a Flash USB using Rufus 1.3.3 and the following ISO-image: ubuntu-13.04-server-amd64.iso. I used following configuration to create the USB: GPT partition scheme for UEFI computer FAT32 (16KB) I successfully booted from this USB on my Intel D510MO motherboard in UEFI mode (there were a black and white boot loader menu instead of a colorful GUI) and installed the OS. During the boot loader installation i saw it was grub-efi-amd64 as it must be. After installation i removed the flash drive and tried to boot the system, but just after a BIOS POST it hangs (there is a white blinking cursor at the left top corner of the black screen) and nothing happens. UEFI Mode is enabled in the BIOS configuration and i've updated the BIOS to the latest firmware. What went wrong, how i can confirm that system was installed properly? How can i boot the OS?

    Read the article

  • programming manner to solve problem

    - by gcc
    Everyone has style(s)/technique(s) to approach/solve real world problems. This/these technique(s) distinguish(es) us from other people or other programmers. (Actually, I think it make us a wanted/ great programmer/computer science ) To improve, we read a lot of books (ex : programming style, how to solve program, how to approach problem, software and algorithm). Can I learn your technique? In other words, if someone gives you a problem, at first step, what are you doing to solve it? (In all honesty, I want learn in what manner you are looking problem )

    Read the article

  • Compact DIY Office-in-a-Cart Packs Away Into a Closet

    - by Jason Fitzpatrick
    Many geeks know the pain of losing a home office when a new baby comes along, but not many of them go to such lengths to miniaturize their offices like this. With a little ingenuity an entire home office now fits inside a heavily modified IKEA work table. Ian, an IKEAHacker reader and Los Angeles area geek, explains the motivation for the build: I had to surrender my home office to make room for my new baby boy ;) I took an Ikea stainless steel kitchen “work table”, some Ikea computer tower desk trays, two steel tabletops, and two grated steel shelves to make an “office” that I could pack away into a closet. Hit up the link below to check out the full photo set, the build includes quite a few clever design choices like mounted monitors, a ventilation system, and more. Home Office In A Box [IKEAHacker] HTG Explains: How Antivirus Software Works HTG Explains: Why Deleted Files Can Be Recovered and How You Can Prevent It HTG Explains: What Are the Sys Rq, Scroll Lock, and Pause/Break Keys on My Keyboard?

    Read the article

  • Disable suspend / hibernate via the policykit

    - by redonath
    I am trying to run Lubuntu 12.04, but if the computer suspends I am unable to bootup again. Instead I see the bios post, the hard disk light flickers once and I have to install again (I have tried to re-install grub2). I am new to Linux and what I found that best answered my question was posted by James Henstridge. The instructions say to create disable-shutdown.pkla in etc/polkit-1/50-local.d/ but this directory does not exist, so do I create a folder titled 50-local.d in poolkit-1 or do I have to place this file elsewhere?

    Read the article

  • Web development tools/approaches?

    - by Clinton
    My day job involves a bit of programming, but I've recently been attempting some web development for personal reasons. I've got Drupal up and running and done basic things like add new content (i.e. heading and text) and add modules and themes, but I'm not sure how to approach actually designing pages. When I mucked around with webpages 15 years ago, it was just a mixture of HTML, CSS and Javascript, generally written with a text editor. Have things changed, or is this the way I'd make a Drupal page today? If it makes a difference, in my case the page's I want to design simply have static content, but I'd like them to be easily updatable.

    Read the article

  • Can I remove the latest ubuntu version without having to reinstall the old version?

    - by Emily
    I was using the 2.6 kernels with no problems, but when I updated to the 3.0 kernel, my bootup failed. I can manually boot with ctrl+alt+f1 startx and my login, but admittedly, i googled this and have no idea what I'm really doing. I have been trying to figure out how to go back to the old version, and eventually figured out the grub menu--i booted from all three 2.6 (.8, .10, and .11) editions of the previous version of ubuntu but they all had the same error as the 3.0 kernal. I can get logged in manually once the boot fails, but when i get to my desktop, wireless is not responsive and will not connect, and portable hard drives do not mount and/or are unresponsive. the previous version worked perfectly. I use an asus netbook. it's an eee pc. i don't have two OSs on it. i had to go to another computer to get to the forum... If the solution is simple, i just don't know what it is.

    Read the article

  • How to Stream Media Files From any PC to Your PlayStation 3

    - by Zainul Franciscus
    Have you ever wished that you could stream video files from your computer over to your TV without actually hooking the two directly together? If you’ve got a PlayStation 3, you’re in luck, because that’s today’s geek lesson. If you’re wondering how to rip dvds to your PC, we’ve got you covered with an article on the subject, but you can stream video files that you’ve recorded yourself, or downloaded from somewhere. Image by playstation-themes Latest Features How-To Geek ETC Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware How to Change the Default Application for Android Tasks Stop Believing TV’s Lies: The Real Truth About "Enhancing" Images The How-To Geek Valentine’s Day Gift Guide Inspire Geek Love with These Hilarious Geek Valentines Four Awesome TRON Legacy Themes for Chrome and Iron Anger is Illogical – Old School Style Instructional Video [Star Trek Mashup] Get the Old Microsoft Paint UI Back in Windows 7 Relax and Sleep Is a Soothing Sleep Timer Google Rolls Out Two-Factor Authentication Peaceful Early Morning by the Riverside Wallpaper

    Read the article

  • Google is not treating two Austrailian schools as separate sites when both are subdomains of qld.edu.au

    - by LuckySpoon
    My question relates to two websites, each of which is a "Calvary Christian College", however in two totally different locations and unrelated to each other entirely (except by name, and domain). All schools in the state are issued a .qld.edu.au, in this case calvary.qld.edu.au and calvarycc.qld.edu.au. Now what's interesting is that these domains are crossing each other in sitelinks for searches such as "calvary christian college townsville" (if you check the sitelinks 2/6 are to a different domain). I've put a demotion in for this ages ago (we control calvary.qld.edu.au), however we're seeing no change on the results page. I have been able to get the owners of calvarycc.qld.edu.au to submit demotions for our domain, which should go in sometime this week. What can we do to tell Google that these websites are not interchangeable, despite both appearing as "subdomains" of qld.edu.au. We can possibly open channels of communication with the administrators of qld.edu.au but will need to tell them what we need to change, and at this point I'm out of ideas.

    Read the article

  • Ubuntu Server 12.10 No GUI Headless Boot and/or Reboot

    - by Ubuntu User
    I have a headless server running the latest Ubuntu Server 12.10. It does not have any GUI at all. I am having the same issue that others are having which is that when you boot or reboot without a monitor (headless) the computer does not boot. The solution presented to others was to edit their xorg.conf file. But since I do not want a GUI installed (and therefore chose not to install a GUI after installing Ubuntu 12.10) I do not have a xorg.conf file in the /etc/X11/ directory. Ubuntu is a widely used distro of Linux, especially for server applications, I absolutely love it. Therefore, there has to be someone who solved this already?

    Read the article

< Previous Page | 547 548 549 550 551 552 553 554 555 556 557 558  | Next Page >