Search Results

Search found 36003 results on 1441 pages for 'try catch'.

Page 97/1441 | < Previous Page | 93 94 95 96 97 98 99 100 101 102 103 104  | Next Page >

  • Placing advice on any parameter of a given type in AspectJ

    - by user12558
    Hi, Im doing a POC using Aspectj. class BaseInfo{..} class UserInfo extends BaseInfo{..} class UserService { public void getUser(UserInfo userInfo){..} public void deleteUser(String userId){..} } I've defined an advice, that gets invoked when I pass an UserInfo instance.But when i try to pass the BaseInfo, the advice is not getting invoked. Below block executes the afterMethod as expected for getUser. &ltaop:pointcut id="aopafterMethod" expression="execution(* UserService.*(..,UserInfo,..))" / &gtaop:after pointcut-ref="aopafterMethod" method="afterMethod" / But when i try to give BaseInfo instead of UserInfo, the aspect is not getting triggered. Am i missing something? Kindly help me on this issue.

    Read the article

  • Why can't Java/C# implement RAII?

    - by mike30
    Question: Why can't Java/C# implement RAII? Clarification: I am aware the garbage collector is not deterministic. So with the current language features it is not possible for an object's Dispose() method to be called automatically on scope exit. But could such a deterministic feature be added? My understanding: I feel an implementation of RAII must satisfy two requirements: 1. The lifetime of a resource must be bound to a scope. 2. Implicit. The freeing of the resource must happen without an explicit statement by the programmer. Analogous to a garbage collector freeing memory without an explicit statement. The "implicitness" only needs to occur at point of use of the class. The class library creator must of course explicitly implement a destructor or Dispose() method. Java/C# satisfy point 1. In C# a resource implementing IDisposable can be bound to a "using" scope: void test() { using(Resource r = new Resource()) { r.foo(); }//resource released on scope exit } This does not satisfy point 2. The programmer must explicitly tie the object to a special "using" scope. Programmers can (and do) forget to explicitly tie the resource to a scope, creating a leak. In fact the "using" blocks are converted to try-finally-dispose() code by the compiler. It has the same explicit nature of the try-finally-dispose() pattern. Without an implicit release, the hook to a scope is syntactic sugar. void test() { //Programmer forgot (or was not aware of the need) to explicitly //bind Resource to a scope. Resource r = new Resource(); r.foo(); }//resource leaked!!! I think it is worth creating a language feature in Java/C# allowing special objects that are hooked to the stack via a smart-pointer. The feature would allow you to flag a class as scope-bound, so that it always is created with a hook to the stack. There could be a options for different for different types of smart pointers. class Resource - ScopeBound { /* class details */ void Dispose() { //free resource } } void test() { //class Resource was flagged as ScopeBound so the tie to the stack is implicit. Resource r = new Resource(); //r is a smart-pointer r.foo(); }//resource released on scope exit. I think implicitness is "worth it". Just as the implicitness of garbage collection is "worth it". Explicit using blocks are refreshing on the eyes, but offer no semantic advantage over try-finally-dispose(). Is it impractical to implement such a feature into the Java/C# languages? Could it be introduced without breaking old code?

    Read the article

  • Can't install Ubuntu 13.10 from 12.04 lts

    - by Matt Carle
    I have ubuntu 12.04 lts installed on my hp pavilion and I want to try 13.10. When I try to boot into the livecd, I get the purple ubuntu splash screen, then a blackscreen where some text flashes (to fast to see what it says) then it goes to a black screen and stays there. I know the installation disc is not the problem because I've successfully installed it on a different machine using the same disc. I've been trying to troubleshoot the issue for a while now and no luck. I have a radeon hd 8250 card. I know it's not much to go off of but any help would be greatly appreciated! Thanks!

    Read the article

  • UBUNTU 11.10 will not boot after suggesfully installed on 8GB usb 3.0 pendrive

    - by Oldrifle
    UBUNTU 11.10 on 8GB USB 3.0 pendrive. Drive Partitioned using gparted. 4GB BASE 3GB Home 600MB swap Installation Ok. Restart blinking cursor. Installed another distro on another USB 3.0 stick. It boots OK. --------------- DEBUG -------------------------------------- Boot Other distro and check: I compare boot file with another linux. grub of ubuntu is 1.4mb contend is different. Taken photo with mobile camera but can not add here. Files has note(music) sign on it. Downloaded 11.10 desktop and Installed. Same result. Will download 12.x when ready and try. Ready to try any suggstion. Orhan

    Read the article

  • My Inbox: How to save changes coming from disconnected POCOs

    I receive a lot of random emails from developers with Entity Framework questions. (This is not a request for more! :)) If I’m too busy to even look or if it’s something I can’t answer off the top of my head, I swallow my pride and ask the person to try the MSDN forums. If the email is from a complete stranger and has gobs and gobs of code that email will surely get a "please try MSDN forums" reply.  But sometimes I’m not in my usual state of “too...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

    Read the article

  • Stairway to Database Design STEP 2: Domains, Constraints and Defaults

    A clear understanding of SQL Data Types and domains is a fundamental requirement for the Database Developer, but it is not elementary. If you select the most appropriate data type, it can sidestep a variety of errors. Furthermore, if you then define the data domains as exactly as possible via constraints, you can catch a variety of those problems that would otherwise bedevil the work of the application programmer.

    Read the article

  • The system is running in low graphics mode error before ubuntu gets installed

    - by hellodear
    I am using Bootable USB for installing Ubuntu with Windows 8.1. I have put pendrive and then booting my USB. When it shows me to try Ubuntu or install Ubuntu. Then I press Try ubuntu and then it says" "The system is running in low graphics mode". Then I press Ok. Then it shows 4 options. Then again I click Ok. Then it shows a black screen and nothing happens. I have tried all possible answers provided in AU. What should I do? Please help. I am using Windows 8.1 with dedicated graphic card (Video card - AMD Radeon HD 8670M). Installing 12.04 LTS with pre-installe Windows 8.1 in a Dell Laptop 3537 inspiron.

    Read the article

  • Business Analyst vs. Architect [closed]

    - by suslik
    I'm a developer of a few years in the financial industry and will soon need to decide what career path to try and row towards. Broadly speaking I have two options: something more 'people' oriented like BAs, or keep coding and try to make more technical decisions like the Architects do where I currently work. Here are my perceptions right now: Business Analysts: get paid way more than devs once they do their job, it seems like they usually have no worries more likely to go REALLY high up in the organization (VPs, etc) Architects: things like certification matters (I see this as a con) called in when things go wrong more than anyone else (weekends & overtime) long career path to get to (dev - senior dev - team lead - architect) I would find the latter more intellectually rewarding, but when I look at it I just can't justify it in terms of lifestyle. Am I wrong / what am I missing? Can you really make a lot of money in a technical role or must you really get out of coding? Thank you for any constructive input.

    Read the article

  • I can't use my iPod touch (32GB)

    - by Silambarasan
    Hi All.. I have connected my ipod touch 32gb in my ubuntu 10.10 os.It's connected on os and shows in desktop. but it's not showing as a device in Rhythmbox music player. and also I can't open directly like folder or drive or usb device. when I try to open it show this Error: Could not display "gphoto2://[usb:001,003]/". Error: DBus error org.freedesktop.DBus.Error.ServiceUnknown: The name :1.207 was not provided by any .service files Please select another viewer and try again. Any solution for this problem?

    Read the article

  • One subdomain is not working

    - by BFTrick
    Hello there, My main domain works just fine - www.example.com and a subdomain set up by another developer works as well - sub1.example.com. But when I try to set another subdomain up I go through the process everything seems to work. The software creates the default files where the subdomain files should go. But when I try to browse there it doesn't work. My host uses Plesk to do all of the hosting stuff. What do you think the problem is? I doubt it is some sort of cache issue because I had problems on my phone which I tried after problems on the pc. Maybe for some reason Plesk needs time to set this up? I have used Cpanel before and that works instantly.

    Read the article

  • No sound with a Creative Labs Soundblaster live EMU10K1X

    - by Geo
    I just installed ubuntu. things seems great but I have no sound. When I go to the settings menu I chose from various setup. I found one that work which had 4 speakers a subwofer and a front speaker. When I test it the sound works fine. However, when I try playing an *.mp3 file or try to watch a video on you tube I get no sound at all. I have a dual boot with windows XP and there is no problem in windows at all. Below is my setup. OS: ubuntu 11.10 machine: dell dimension 8300 speakers: dell creative lab sounblaster live EMU10K1X video: ATI RADEON R350 [Radeon 9800 Pro] secondary Following https://wiki.ubuntu.com/DebuggingSoundProblems did not help.

    Read the article

  • How to copy the file from source to destination only once at a time?

    - by Viswa
    I have to copy the file from my desktop to my mounted directory. I was using the following command to copy the file from my desktop to mounted directory. os.system("cp -f /home/Desktop/filename /media/folder_1"). It works fine. But the problem is while copying the file from my source to mounted directory(folder_1) if any interruption is happens like network down, then the system continuously keep on trying. It couldn't skip that process. Finally, when the network comes the files are again copy to my mounted directory. Due to this continuous trying, next time i try to move the content it throws "permission denied" error. How do i copy the file only once, if any network issues happen then it will not keep try to copy, instead of that, it throws the error. If you know, Let me. Its very useful to me.

    Read the article

  • screen driver problem

    - by exilada
    I have Intel HD 3000 graphics card onboard and nvidia 520 mx optimus techolonogy card. I was try to install Nvidia driver but it was failure. Now I cant use anything. Have one resolution 640x480 every media disconnected and I cant connect $ xrandr Screen 0: minimum 320 x 200, current 640 x 480, maximum 8192 x 8192 LVDS1 connected 640x480+0+0 (normal left inverted right x axis y axis) 344mm x 194mm 640x480 59.9* VGA1 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) DP1 disconnected (normal left inverted right x axis y axis) lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09 ) glxinfo | grep vendor server glx vendor string: SGI client glx vendor string: Mesa Project and SGI OpenGL vendor string: Tungsten Graphics, Inc Blockquote something wrong here I guess I try to some solutions but didnt work even it cant nvidia-xconfig file after these By the way system get eror sometimes about xorg Sorry for my English thaks for help.

    Read the article

  • 12.04 LTS usb wont boot

    - by Niva
    I've tried to install ubuntu 12.04 LTS parallel with Windows 8, on my laptop Clevo m767yu But when I try to boot from USB it just stops when it's trying to read the files. it stops and shows this picture: https://www.dropbox.com/s/np3ptvvmasv7ax2/IMAG0097.jpg If I try to boot from a cd, it stops and shows a cursor blinking. I've tried both usb and cd on other computers, and the both works. I've a little experience with Ubuntu, but I have never had problems with the installing process. Any help will be appreciated!

    Read the article

  • Software Center crashes and terminal errors

    - by user97521
    *note*I'm a new user to Ask Ubuntu and I've only recently switched to Ubuntu 12.04. When I try to open the software center (Ubuntu 12.04 32-bit) it will flash open, load for maybe 1-2 seconds, and then close. When i try using: sudo apt-get purge software center sudo apt-get install sudo apt-get update sudo apt-get upgrade I get this within the terminal: Reading package lists... Error! E: Problem parsing dependency Depends E: Error occurred while processing printer-driver-hpcups (NewVersion2) E: Problem with MergeList /var/lib/dpkg/status E: The package lists or status file could not be parsed or opened. *The problem fixed itself after I shut down my laptop for the night and turned it back on to check my e-mail this afternoon. If anyone could tell me how to fix this problem in the future please do, I would like to learn about these kind of things because i don't plan on putting windows on my laptop again :P *

    Read the article

  • Which Content Management System (CMS)/Wiki should I use?

    - by danlefree
    This is a general, community wiki catch-all question to address non-specific "I need a CMS or Wiki that does x, y, and z..." questions. If your question was closed as a duplicate of this question and you feel that the information provided here does not provide a sufficient answer, please open a discussion on Pro Webmasters Meta. I have a list of features that I want for my website's Content Management System (CMS) - where can I find a [free] script that includes all of them?

    Read the article

  • How do I know, when my develpment skills is enough to do some "real" job?

    - by hjdm
    I am in proccess of constant learning web technologies now. I have know php, pure javascript ( I think, I can pick up jquery fast if needed ), html, css and basic crud with databases. I understand how MVC frameworks work. I have made a couple websites for friends ( one with my own engine ). Maybe it is time to try to do some interesting stuff for someone? ( say freelance or try to find some job in this industry ) Which expierence did you have, when you got your first job?

    Read the article

  • Issues with HP Mini 110-1125NR

    - by Guga Figueiredo
    Just finished installing Ubuntu 12.04 Precise Pangolin on my HP Mini 110-1125NR and im having small, but rather irritating issues. I installed it over the Windows 7 (starter) which came with the netbook. Firstly, it will only boot from the USB flashdisk. If i try to boot from the hardrive, it goes to a black screen. Second, built-in wireless wont activate. system says its enabled and on, but the light indicator is still orange (as if its off), and i cant get a signal from my home wi-fi I havent found any solved threads for inspiration, and mos of them are pretty old (1 year +) so i thought of giving a try to see if any of you guys System is: HP Mini 110-1100 1gb memory Intel Atom CPU N270 @ 1.60GHz x 2 Os - Precise Pangolin - Ubuntu 12.04 160gb Hard disk If any of you are aware of the solutions of my issues it'd be awesome Thanks in advance for any help!

    Read the article

  • Windows 7 doesnt reboot as a dual boot

    - by user94628
    I've recently installed Ubuntu12.04 on my HP Pavillion desktop which came preloaded with Windows 7 (64bit). Since today when I try to boot WIn7 I get a screen firstly saying loading files then it goes to the next screen which tries but fails to fix errors. I've also tried system restore which has also failed. When I run boot repair it says it has been successful and to try and reboot. When I reboot I still get the same error. Please see this file: http://paste.ubuntu.com/1261148/ Please help

    Read the article

  • 407 Proxy Authentication Required

    - by user38507
    When I try to install a software using Ubuntu Software center I get: Failed to download repository information Check Your Internet connection When I try to do a apt get-install something, I get: 407 Proxy Authentication Required I use a proxy server that requires a user-name and a password. I have set my systems proxy manually, by plugging in the required numbers in the Networks proxy and applied it system wide. I guess the problem now is plugging in my user-name and password. When I use INTERNET via Mozilla, it specifically asks me for my user-name and password.

    Read the article

  • Java Preferential Treatment

    - by Jay
    I have icedtea6-plugin installed on my Ubuntu box. The weird thing is, when I am browsing the internet, certain website are able to use the Java and some websites are not. For instance, I am able to log in to my bank at nordea.dk. They use a Java applet to authenticate the user. But when I try to use keepvid.com, it says "Loading Java Applet". And then after a minute or two it says "Error: Please click here to download Java. If you already have Java, please restart your browser and try again." The thing is I've restarted my computer, closed and opened my browser(chromium) and none of it seems to help. Could someone please point me in the right direction to solve this problem? Thanks.

    Read the article

  • It's All About Your Website

    When you expect people to come flocking to your website to buy your product, service or eCourse you need to remember that it is all about your website appeal to attract visitors where they will stay long enough to read your sales pitch, watch your video or listen to your audio. Convincing them to take a moment to consider what you have to offer is all in the way you make that first impression, that 3 seconds to catch their eye, arousing their curiosity while assuring your visitor that it is all about them.

    Read the article

  • Why do packages fail to install from command line

    - by calebB
    Every once in a while I can't install packages in Ubuntu 11.04. I'll try to run the software center and it and it will pop up then disappear. If I call it from the command line it says it seg-faults. And then trying to install anything from the command line I get this: sudo apt-get install pdftk Reading package lists... Done And thats all I get for anything I try. Usually restarting fixes the problem but its very annoying.

    Read the article

  • Ubuntu crashed during the update to 12.04, not I can't recover my files, help please

    - by mrah
    I'm pretty new to Linux and I've only installed Ubuntu as I couldn't afford to buy Windows, worked well and I liked it. But I chose to upgrade it to the newest version after a prompt. The update froze and the machine was unresponsive which forced me to hard reboot it. Now nothing seems to load and I've reached my wits end (mainly cos I'm lost in all the command lines). I've decided to try and recover my data from the hard drive, only two folders, by selecting the try Ubuntu option when I insert the OS CD into the machine. The problem I'm experiencing now is it won't let me copy my folders, I get a 'The folder contents could not be displayed. You do not have the permissions necessary to view the contents of "folder_name".' Does anyone know how I can recover this data?

    Read the article

< Previous Page | 93 94 95 96 97 98 99 100 101 102 103 104  | Next Page >