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  • How do you usually manage callbacks in Java using Swing library?

    - by none
    I'm quite new to the Java Swing programming, and GUI development as well. As a beginner, I'm currently reading Design Pattern, but finding what I'm looking for is quite hard, most of the times. So far, I've never had huge problems defining a view hierarchy - I just use to subclass component from component. But the hard-to-do here is how managing callbacks, which often become hard to maintain due to the hard code. During my last projects, I tried to separate GUI, Listener and Callbacker objects which cooperated together, but in this way it was really hard adding new features. So, which kind of best patterns or best practices do you tend to use when trying to maintain, add new features or even worst avoid to hard-code classes which manage callbacks method in this kind of frameworks (mainly Java Swing)?

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  • How do I get drivers working for an Nvidia GT560i on 12.04?

    - by keepitsimpleengineer
    I been using a test Xubuntu 12.04 LTS on my 64 bit workstation, because Ubuntu has dropped support for the nvidia graphic adapters my 10.04 LTS and I haven't been able to get them working. Now update manager has upgraded the kernel from 3.2.0-30-generic to 3.2.0-31-generic, and failed to produce a working nvidia module that the X server can load. Fortunately, when launching the 3.2.0-30-generic kernel, I still have use of the X server. Does anybody know a work-around or fix for this? I'm really worried, this is the last working Ubuntu distribution OS on the computer and I don't want to give up on Ubuntu. Details of problem here.

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  • Logic - Time measurement

    - by user73384
    To measure the following for tasks- Last execution time and maximum execution time for each task. CPU load/time consumed by each task over a defined period informed by application at run time. Maximum CPU load consumed by each task. Tasks have following characteristics- First task runs as background – Event information for entering only Second task - periodic – Event information for entering and exiting from task Third task is interrupt , can start any time – no information available from this task Forth task highest priority interrupt , can start any time – Event information for entering and exiting from task Should use least possible execution time and memory. 32bit increment timer available for time counting. Lets prepare and discuss the logic, It’s OK to have limitations …! Questions on understanding problem statement are welcome

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  • What are the Characteristics of a Software "Center of Excellence" (CoE)?

    - by Randy
    Recently a new director of my department came in and expressed his wish that we become a "center of excellence". I expected that since he is my first boss who actually has a programming background that there would be some description of this. However, it was left at that. As I reflected on this over the last few days, I am coming up empty on what a CoE actually means beyond just "being effective" at delivering the product. Here are the main items I am struggling with: Is this just a term that is thrown around by management types? What qualities make a group of software developers and testers excellent? How do you measure excellence in this context?

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  • Can't find my DVD drive in Ubuntu 12.04

    - by user72953
    I am completely new to Linux, due to some problems in my Windows I decided to give Linux a try. I am quite liking it accept for some minor issues. The biggest of them is that I cannot find my DVD drive in Ubuntu. After I insert the disk, the drive's green light flickers and then nothing. I don't get anything on my unity bar or desktop. There is no folder inside my /dev folder which indicates a dvd drive. There is a cdrom folder in my root folder but nothing is there. If you guys know what's wrong, I'd appreciate the help. Am a complete newbie so don't expect me to know anything about Ubuntu, although I have spent lots of hours in last 2 days googling my issue so I have basic information...

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  • CPU spikes cause audio stuttering in Audacious when browsing? (Lubuntu)

    - by Alucai Vivorvel
    My default audio player is Audacious, browser Google Chrome. I tried Firefox, and while I love it, the CPU load spikes when doing something as simple and small and switching a tab, which causes the audio playing to stutter (as sound is onboard and handled thru the CPU). Chrome doesn't do this as much, but there is the occasional stuttering when browsing, which is ridiculous, as not even Windows Vista does this. So I thought maybe it's something to do with how Lubuntu handles sound, I checked and only ALSA was installed. I tried installing PulseAudio, but, while the music "plays", nothing comes through the speakers. Immediately after switching back to ALSA the music pours out of them. So I was wondering if you had any idea what was going on here. I asked on Ubuntu Forums but apparently my problem is too complex, as it's been over a week since the last reply. Specs are: AMD Athlon 64 3200+ @ 2GHz 2GB Corsair 667MHz DDR2 RAM ATi HD Radeon 3650 (AGP) 512MB 500W Cooler Master PSU 80GB SATA II HDD (Vista is installed on 500GB drive) Biostar K8M800 Motherboard

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  • Ubuntu freezes while working

    - by webid4me
    Ubuntu on my laptop has frozen multiple times in last 6-7 months. Its not frequent but I can not relate the freezing to anything which I was doing. Today it froze again when I was taking notes in class - approximately at 12:00 PM. During the freeze both mouse and keyboard stopped working. I tried Alt-Ctrl-F1, Alt-Ctrl-F2 etc without any success. After that I waited few minutes & then I restarted the laptop. I checked /var/log/syslog and /var/log/kern.log and it seems that it did not log anything (I was not able to understand most of it). Please let me know if you can find something unusual at around 12:00 PM. Is there any other log which might be useful? Here are the /var/log/syslog and /var/log/kern.log files.

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  • Screencast: "Unlocking the Java EE Platform with HTML5"

    - by Geertjan
    The Java EE platform aims to increase your productivity and reduce the amount of scaffolding code needed in Java enterprise applications. It encompasses a range of specifications, such as JPA, EJB, JSF, and JAX-RS. How do these specifications fit together in an application, and how do they relate to each other? And how can HTML5 be used to leverage Java EE? In this recording of a session I did last week at Oredev in Malmo, Sweden, you learn how Java EE works and how it can be integrated with HTML5 front ends, via HTML, JavaScript, and CSS.

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  • Resolution text mode Removing ubuntu-server 10.04

    - by Fabin
    Hello Friends .. I have ubuntu-server on my server and also in terminals and an application squeegee in text mode. This version 9.10 of ubuntu-server system came with a resolution at the terminal, which makes use of the application, the fonts (letters) are very small. Please, if anyone knows how to take the resolution of text mode 10:04 ubuntu server, tell me. To illustrate. I need the resolution is to get as Debian, large fonts! Still using version 9.04, it was the last that still has not implemented the resolution at the terminal (text mode). I remind you that non-use graphical interface. Only text mode. Thanks.

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  • installing 12.04 failing

    - by Steve
    I just downloaded 12.04 burned it to a cd, and booted to into it on my last built computer. It loads a purple screen, then goes to a dos looking screen with a blinking cursor then loads the ubuntu loader. The lights go from red to white and finally they all turn red. This is when the entire screen goes to noise and just hangs. Seems like a hardware issue but I can successfully boot into a non genuine windows7 that I'm looking to replace. I'm not sure what to try, so any help would be appreciated. Thanks.

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  • How do I get a Tascam US-122L working?

    - by rich
    I have tascam US-122L since Windows is really crappy with this, I decided to try linux and ubuntu to be specific.. I tried searching different forums and sites on how to make my US-122L work, but most of the link and site that teaches how to make it work are really out dated.. and I cant get myself to trust a tutorial that is published 2009 and last edited early 2010.. does anyone know how to make my Tascam US122L work? if not just give a link on how to make it work.. atleast from someone who is using and made work on theirs.

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  • Classless tables possible with Datamapper?

    - by barerd
    I have an Item class with the following attributes: itemId,name,weight,volume,price,required_skills,required_items. Since the last two attributes are going to be multivalued, I removed them and create new schemes like: itemID,required_skill (itemID is foreign key, itemID and required_skill is primary key.) Now, I'm confused how to create/use this new table. Here are the options that came to my mind: 1) The relationship between Items and Required_skills is one-to-many, so I may create a RequiredSkill class, which belongs_to Item, which in turn has n RequiredSkills. Then I can do Item.get(1).requiredskills. This sounds most logical to me. 2) Since required_skills may well be thought of as constants (since they resemble rules), I may put them into a hash or gdbm database or another sql table and query from there, which I don't prefer. My question is: is there sth like a modelless table in datamapper, where datamapper is responsible from the creation and integrity of the table and allows me to query it in datamapper way, but does not require a class, like I may do it in sql?

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  • how to focus the desktop on unity

    - by user25119
    I'm using Ubuntu 11.10 (unity 4.24.0) and I can't seem to focus the desktop. For example, if I press Mod4+D, the window I had opened stays focused, but the image is see is my wallpaper. If I minimize all windows one by one, the last window I minimize is still focused when the desktop finally appears. This means I can't add desktop icons, nor use the mouse in it. I thought about reporting a bug, but everything works fine on other computers with the latest version of Ubuntu I've used, so I'm wondering about what's happening. Before, when I pressed Mod4+D, the Unity Top Menu would say "Desktop - File Edit ..." and I could use the desktop properly. Thanks in advance!

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  • why my site cache 2 time par day?

    - by clarawood
    I have read the FAQs and checked for similar issues: YES My site's URL (web address) is: www.adultxdating.com Description (including timeline of any changes made): I have lost my top search listings from last 4 months. I am still working on this but not getting proper guidance. This site is caching 2 times in 24Hrs. Some times sites will back in to top 10 search listing on 100s keywords, some time its gone out 1000+. anybody can help me why its happening. I have more than 200K+ incoming links and updating the site regularly. Please help. Thanks clara wood

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  • .xprofile isn't enough

    - by BrianXP7
    I've been trying to find a solution on how to change the screen resolution on the login screen and other users. .xprofile will only affect my account. I've been searching for a few months but I got nothing. Please help. It would be easier if the "Default Resolution" was still there in the monitors settings. Plus, I'm afraid of editing the xorg.conf. Last time was ugly... My specs: HP dc5000 Small Form Factor Ubuntu 11.10 Oneiric Ocelot i386 Intel Pentium 4 2.40 GHz Intel 82865g x86/MMX/SSE2 Integrated Graphics (Standard Experience, OpenGL 1.3 and Runs Unity 3D :P) SoundMax Integrated Audio Card Broadcomm Integrated Ethernet 994.1 MiB RAM 38.3 GB HDD Acer X203H (Maximum Resolution 1600x900)

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  • bootscreen downscaled

    - by blackmist
    my specs intel mb dh67cl corsair 4gb ram nvidia 560ti gtx i5 processor dell 22" monitor 1920x1080 firstly, i began using ubuntu last year. now im in love with it. just one minor detail i dont like is that the bootscreen changed just after the first boot. now im using 12.04.1. i will explain how it happened. first i installed ubuntu via windows. so it booted for the first time and life was beautiful. the resolution was 1920x1080. then i installed the nvidia drivers, all the updates and codecs for the medias. now the ubuntu bootscreen downscaled to a lower resolution. i tried searching for answers, but nothing was for ubuntu 12.04.1. since im a newbie, i didnt want to take any chances. i need help. i like the bootscreen.

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  • Facing quality issues

    - by juststartedmycareer
    A workforce management software has complex GUI (for example values in a page depends on the status (closed or open) of other pages). Only latest and near past development has test coverage. During our last release, we received lots of bugs from customer in-spite of 2 weeks of testing Sprint . We don't have dedicated test team. The developers does the unit test & User acceptance test. Every day triggers automated regression test. I am afraid the developers are not testing the entire workflow because its time consuming also not able to automate it because of its complexity. Any suggestions ?. The legacy code (15 yrs development) has less code coverage. How can I improve quality ? Note: Now not possible to hire testers to have independent test team!!

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  • Dev Connections / VS Launch April 2010 &ndash; Code!

    Just returned from the VS Launch last week, and as promised here is the code for my sessions. I will post a separate entry with all the code for my Azure Tutorial which was on Thursday. And, as always, if you are looking for something in particular and cant find it here, just drop me an email! AppFabric Access Control http://www.dasblonde.net/downloads/AccessControlSamples.zip Samples for both WCF/REST samples and web resources such as Web Form and ASHX Samples include a complete object model...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.

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  • Where must i focus [on hold]

    - by njnbat
    i have been working in technology field for last 7 years. i started with vb.net windows application along with oracle plsql. Later on i did projects that included coding in java ,struts framework ,javascripts. I have lost interest in doing projects with struts framework and doesn't find oracle plsql appealing too. I would love to work with new technologies especially mobile techs and my interests in coding persists still. But i am not sure if my organisation will ever shift its tech base to new and modern frameworks. Now i am 25 years old and worried about taking the right decision. i feel like quitting the job but at the same time i am concerned if i have the sufficient tech skills to start working on modern technologies in other organisations. Also i am confused if i must stick to the same company and wait for management jobs. Kindly suggest your opinions on the right strategy i must opt , being a 25 year old with this background.

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  • Software Center won't take into account my changed OpenID name: any idea?

    - by Pascal Av
    Failing to install IntelliJ from the Software Center, I realized my login is wrong in the /etc/apt/auth.conf entry that the install process generates. In this file, I see my original OpenID, that's the one which got automatically generated when signing up on Launchpad. It contains my last name so I changed it. I purged conf and binaries for Ubuntu One, reinstalled, deleted all listed "Devices" from app, all "Applications" from Launchpad. Deleted ~/.cache/software-center/, reboot, but still: When installing IntelliJ, the auth.conf file receives my original OpenID, not the modified one Problem is that the commercial subscription, for IntelliJ private PPA, uses my modified OpenID, so authentication attempt fails. I can't remove nor modify this subscription, even by changing back my OpenID into Launchpad. Any idea to solve this?

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  • Unable to use separate X-Screen's GTX 550ti Ubuntu 12.10

    - by user12622
    I am currently trying to get from "Twin View" to using separate X screen's on Ubuntu 12.10, however I'm not having a great deal of luck. I am using an Nvidia GeForce GTX 550 Ti and am on driver version 304.51 Initially, when I turn on the separate X screens option, presents me on the 1 monitor with a box to accept the changes, however the 2nd screen goes black, and effectively, Ubuntu only seems to recognise the one screen. When I reboot, I boots back into Ubuntu with both screens working in Twinview. I'm not too sure where to start, but my xrandr can be found: Xrandr Any help is greatly appreciated, this is the last but one thing I need to make Ubuntu my only OS, so fingers crossed we can crack it :)

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  • PCManFM problems: shuts down unexpectedly, would not always start [closed]

    - by cipricus
    In Lubuntu 12.04 beta (final release in a few days). I do not remember doing something outrageous to my PCManFM but now it has has a lot of problems: "extract here" menu action wouldn't work (this problem never disappears) the program shuts without obvious reason making the desktop empty (the program can be started in run (alt-f2) but this does not alway restore the desktop) would not start sometimes from its /usr/share/applications.desktop file (or the "Aplication Launch Bar") although it starts in run (alt-f2) (the last problem is temporarily solved if the program is closed in task manager and than restarted with alt-f2) I have reinstalled it to no avail. Any ideas?

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  • ubuntu 14.04 - everything fine except the shutdown

    - by hns
    i've installed ubuntu 14.04 on my old notebook (acer travelmate 2420). everything is fine except the shutdown. it's hanging in the last screen ("ubuntu" with the points beneath - they change their colour properly...as long as i don't press the "on/off" button of the notebook). i've changed this line: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" into this: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=force" doesn't work. can anybody help? i'm a ubuntu beginner, so i maybe don't understand too specific things. thank you.

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  • GlassFish Community Event @ JavaOne - Save the date!

    - by alexismp
    The interest for having a GlassFish community event at JavaOne is still very strong both inside Oracle and in the community, so this year again we'll be hosting a get together on the Sunday prior to the main event. If you're in town and attending JavaOne, mark your calendars : Sunday 2nd, October 2011 - 12:30pm-4:30pm in the Moscone This will be an opportunity to discuss the community status (adoption of Java EE 6, GlassFish 3.1.x) and hear about future plans, mainly around Java EE 7 and the related GlassFish release(s). We'd also like to have several participants share their deployment stories as well as some time for an free-form unconference format and some team building activity. Of course, beyond all the content shared in slides, this should really also be a good excuse to meet folks from the community and from the core GlassFish team at Oracle. Here's a post on last year's event. And before anybody asks, we are still exploring the party situation :-)

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  • What is approximate cost to develop iPhone/iPad app? Features described

    - by innodeasapps
    Need your help guys... I was working as an iPhone developer since last few months. And just a month ago I left the job, and now i got an offer to develop an iPhone/iPad app. I need to develop an universal app which has frames like PicFrame in which photos must adjust accordingly, with customizable frames, few photo effects like in instagram (Not exactly same but something like it) and then user can share photos on Facebook, tumbler,dropbox, etc. I might need around 30 days time to develop the desired app. Note that designing is not my part, I need to develop and test it thoroughly. I have no idea how much price should I ask to develop such app. As here is the place where we all developers meet, I feel I would get proper guidance. Thank you in advance...

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