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  • What is the difference between "data hiding" and "encapsulation"?

    - by Software Engeneering Learner
    I'm reading "Java concurrency in practice" and there is said: "Fortunately, the same object-oriented techniques that help you write well-organized, maintainable classes - such as encapsulation and data hiding -can also help you create thread-safe classes." The problem #1 - I never heard about data hiding and don't know what it is. The problem #2 - I always thought that encapsulation is using private vs public, and is actually the data hiding. Can you please explain what data hiding is and how it differs from encapsulation?

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  • To identify the classes for uml diagrams?

    - by user106535
    I want to implement a software engineering project based on "crime management system". The main modules are: visitors, users, administrator. The main events that are taking place are: registration, report complaint, report crime, report most wanted, view status of reported crime. So could you please help me to identify the classes that are to be used in this project and help me to draw the class diagram?

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  • Calculating Hit Accuracy score in a game

    - by N0xus
    I'm currently in the process of making a scoreboard for my game. One of things I would like to display is the players accuracy in the amount of hits they had in game. However, I have never done this before and I've no idea how to go about doing this. Is there a commonly used algorithm out there that can help me calculate this, or has someone found a way to calculate this fairly easily? Any help with this would be appreciated.

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  • Dependency problems installing wine 1.5 on ubuntu 12.04 x64

    - by Moreno
    I tried: $ sudo add-apt-repository ppa:ubuntu-wine/ppa $ sudo apt-get update $ sudo apt-get install wine1.5 result was: $ sudo apt-get install wine1.5 Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: wine1.5 : Depends: wine1.5-i386 (= 1.5.6-0ubuntu1~pulse17) E: Unable to correct problems, you have held broken packages. then I tried: $ sudo dpkg --configure -a $ sudo apt-get install -f result was: $ sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. after all I tried: $ sudo apt-get build-dep wine1.5 Reading package lists... Done Building dependency tree Reading state information... Done The following packages have unmet dependencies: libgnutls-dev : Depends: libgnutls26 (= 2.12.14-5ubuntu3) but 2.12.19-1 is to be installed Depends: libgnutlsxx27 (= 2.12.14-5ubuntu3) but it is not going to be installed Depends: libgnutls-openssl27 (= 2.12.14-5ubuntu3) but it is not going to be installed E: Build-dependencies for wine1.5 could not be satisfied. also tried: $ sudo apt-get install -y ia32-libs Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: ia32-libs : Depends: ia32-libs-multiarch E: Unable to correct problems, you have held broken packages. Using synaptic: using ubuntu software center (USC): Somebody can help me? Thanks. Trying again: $ sudo dpkg --configure -a $ sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 14 not upgraded. $ sudo apt-get install wine1.5 Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: wine1.5 : Depends: wine1.5-i386 (= 1.5.10-0ubuntu1~pulse19+build4) E: Unable to correct problems, you have held broken packages.

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  • How to appear very professional on my first freelance project?

    - by iamserious
    I need some help on appearing very professional on my first freelance project. How / What should you do to achieve this? Background: I started as a full time web developer 18 months ago, two promotions later I am now a senior software engineer. I've never had any problems with designing / developing / coding a complicated system. I thought I could use some help for Christmas and I started bidding for a project and now I have one - from a very reputable lawyers association in London. I have no problem dealing with the actual implementation of the system, but I have no idea how to appear professional throughout the whole process. About the project: This lawyers association are starting a distant training courses and in addition to having a website to show off all their clients etc, they want a students area where their students would log in, download course materials allocated to them etc.. and an admin section where they assign courses to students / create new ones / upload materials etc.. Questions breakdown: 1) How should I start with the requirement gathering? Is using scrum a good idea, or should I use something like Volere Template - and what should I do with it? should I submit a copy to the client etc.. 2) How often should I meet the client? Would once a fortnight would be good? 3) What are the processes / protocols that I need to follow so that they would be satisfied with me and think that I am very professional 4) How much should I charge for the product? 5) How should I get a quote / contract / receipt for the whole project? 6) What are the steps that professional freelancers go through, during the life cycle of a project? My Research so far Looking at How much should I charge doesn't help.. I live in London, zone 1, though I have no idea how much a project of this size would cost. Help on this would be appreciated. How to be professional articles talks about the work / time management etc and not the actual process, what would real people do etc.. it's like academia theory, but not practical. If this needs revising, please let me know, do not close it because of whatever reason, I will edit the question or details to fit the needs. Thanks for reading a lengthy question.

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  • What is the recommended library for using Lua from C++?

    - by DevilWithin
    I am currently planning how to integrate Lua scripting in my 2D Game Engine, and i would like to go straight to the most adequate solution for having C++ classes and objects exposed. I've read this (if it helps you help): http://lua-users.org/wiki/BindingCodeToLua If you have a better scripting language to recomend, go for it ;D All help is welcome, i need to pickup the best solution to start implementing Thanks

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  • Screen flickering in Ubuntu 12.04 LTS

    - by Akarsh Madhav
    for those of you who can help me..I recently installed ubuntu 12.04 lts and i got this screen flickering at the log on screen...i googled this problem and i found out that laptops with nvidia graphics have it...but i have intel hd graphics in mine...i tried "nomodeset" and it was solved but my screen resolution changed to 1024x768 and i couldn't change it to 1366x768...so im using ubuntu 11.10 for now...what should i do?? For those who can help me..i'm a newbie at ubuntu and i know nothing..so please detail your answer.... Anyone??

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  • samsung printer SCX 5737FW on Ubuntu 11.10

    - by Pepe
    can anyone please help? I am trying to install samsung printer SCX 5737FW on Ubuntu 11.10, but when I plug in the usb cable it tries to look for the driver, but can't find it. Indeed the webpage http://www.samsung.com/uk/consumer/print-solutions/print-solutions/mono-multi-function-products/SCX-5737FW/SEE-spec tells me that the printer is supported up to Ubuntu 10. This true because it installs perfectly on my other machine with ubuntu 9. Can anyone help please? Thanks

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  • Participate in open source project

    - by peraueb8921
    Currently, I am through a very creative phase as a developer and I think it's a good time to contribute to an open source project. Not as "permanent" developer to a project but in a "help wanted" manner in many projects. The only open source hosting services that I know of are SourceForge and CodePlex. Any suggestions that will help me on this direction? Like other sites that support this. Thanks in advance.

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  • What is the recommended library for using Lua from C++?

    - by DevilWithin
    I am currently planning how to integrate Lua scripting in my 2D Game Engine, and i would like to go straight to the most adequate solution for having C++ classes and objects exposed. I've read this (if it helps you help): http://lua-users.org/wiki/BindingCodeToLua If you have a better scripting language to recomend, go for it ;D All help is welcome, i need to pickup the best solution to start implementing Thanks

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  • A Sample Web Proposal

    Many times you feel difficulty to develop a website proposal for your client and many of you are still unaware of the importance of a web proposal. Here we are trying to help you at some extent. Here a sample web proposal is given for your help.

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  • Isight on Ubuntu 11.10 (Macbook 4.1)

    - by Anam
    Yesterday I installed Ubuntu 11.10 on my Macbook 4.1 and just after installing the isight firmware by following the instructions here https://help.ubuntu.com/community/MactelSupportTeam/AppleiSight everything was working fine. I got AppleUSBVideoSupport from here http://turanct.wordpress.com/2010/06/ But afterwards I installed a bunch of updates (around 300) and after rebooting Isight isn't working anymore. I redid what is on that website above, I added the ppa sources and upgraded but no luck :( Can anyone help!?! I really need to use the webcam as my dears are abroad. Thanks a zillion

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  • Ideas for an Erlang Application [closed]

    - by user1640228
    I'm just about to finish an Erlang book and I've done plenty of hacking on trivial things outside of reading the book. Now I want to crank thinks up and build an app that really makes use of many of Erlang and OTP's big features. I've got a few sketches of a highly-available music delivery system backed up by a riak cluster. Would love some help to inspire my project and help me into designing the system the way a professional Erlanger would.

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  • Master Immersion Events from SQLskills.com

    A new series of courses is available from SQLskills to help you better learn to manage and tune your SQL Server instances. These classes are designed to help you complete the MCM certification, but are also valuable for anyone that wants to become a better SQL Server DBA. NEW! SQL Monitor 2.0Monitor SQL Server Central's servers withRed Gate's new SQL Monitor.No installation required. Find out more.

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  • How do I get a Broadcom Wireless BCM43225 card working?

    - by DanFritz
    During the installation of my Ubuntu 12.10 I could use the wireless connection for extra updates. After the installation I updated Ubuntu and it installed 74 new updates, after that no wireless connection (say what!). So I did try some stuff, I followed the tutorial to load the windows drivers using ndiswrapper (https://help.ubuntu.com/community/WifiDocs/Driver/Ndiswrapper) but I always get that the ndiswrapper module is not loaded (but I did install the extra 3 packages, still doesnt work). ndiswrapper-source ndiswrapper-dkms ndiswrapper-common Please somebody help! Thanks a lot

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  • What non-computer based programming tools do you consider invaluable? [closed]

    - by Schroedinger
    Possible Duplicate: What physical tools do you find useful to work as a programmer? I'm talking about things like whiteboards for process planning, paper for mapping out logic flows, particular books that you've found relevant, things in your workspace that help you think and process what you're working on and how to attack problems. I'm starting out in a corporate environment and want to have an understanding of what tools really work for other programmers to help them work through their problems and solutions.

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  • Ubuntu 12.10 Broadcom Wireless BCM43225

    - by DanFritz
    During the installation of my Ubuntu 12.10 I could use the wireless connection for extra updates. After the installation I updated Ubuntu and it installed 74 new updates, after that no wireless connection (say what!). So I did try some stuff, I followed the tutorial to load the windows drivers using ndiswrapper (https://help.ubuntu.com/community/WifiDocs/Driver/Ndiswrapper) but I always get that the ndiswrapper module is not loaded (but I did install the extra 3 packages, still doesnt work). ndiswrapper-source ndiswrapper-dkms ndiswrapper-common Please somebody help! Thanks a lot

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  • How to use Dart Editor

    How to use Dart Editor Dart Editor, part of the open-source Dart project, is a light weight and productive editor for Dart. It can help developers editor, refactor, and debug Dart apps. Watch this video to learn more about Dart Editor and its many features to help developers be more productive building high performance web apps. From: GoogleDevelopers Views: 104 2 ratings Time: 05:34 More in Science & Technology

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  • 5 Easy SEO Tips to Improve Your Rankings

    SEO stands for Search Engine Optimization, and it is a collection of techniques to help your website rank better for certain search terms. Below are 5 tips to help you optimize your website and have the best chance of succeeding online. With anything related to SEO, you have to ensure that you choose the right keywords.

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  • installed ubuntu 12.04 and no wireless internet at all

    - by Memoq
    I'm extremely new to ubuntu. I installed 12.04 on a laptop that had no os. I've tried following these forums to troubleshoot my internet problems only to be confused by all the steps. I need help. I'm willing to follow any instruction as long as they make sense. Any help would be nice. The equipment i have is a Dell inspiron 1100 laptop wireless card is D link 2.4 dwl -g650 product ar5212/ar5313

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  • my mouse blinks!

    - by Jeffrey
    hello I'm new in linux systems and I have the same problem in every distro... the thing is that my mouse every time i move it or do anything with it blinks!!! I think it's a xorg problem or a driver problem and the only way it does not do that is when i start with the low-resolution error using a xorg.conf from another graphic chipset and i think that isn't the best choise xDD please if you can help me I have a ati rage 128, thanks a lot for your help people n.n

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  • Earn Cash, Make Money Online Use SEO

    Search engine optimization is a great way to help increase traffic to your site which in return helps you earn cash and make money online. In this two part article we are going to give you a few simple tips to help you start using SEO in your online business.

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  • Exadata Planning and Development Workbook

    - by Javier Puerta
    The Oracle Exadata Workbook series has been created to provide guidance for planning,installing, operating and maintaining Oracle Exadata Database Machines. These workbooks will help you identify specific needs, address potential challenges, and understand the opportunities associated with owning this advanced Engineered System. A well-planned implementation will help you realize the performance,scalability, and administrative improvements of an Oracle Exadata system. Register with your OTN login to download the first workbook in the Oracle Exadata Admin series.

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  • Exadata Planning and Development Workbook

    - by Javier Puerta
    The Oracle Exadata Workbook series has been created to provide guidance for planning,installing, operating and maintaining Oracle Exadata Database Machines. These workbooks will help you identify specific needs, address potential challenges, and understand the opportunities associated with owning this advanced Engineered System. A well-planned implementation will help you realize the performance,scalability, and administrative improvements of an Oracle Exadata system. Register with your OTN login to download the first workbook in the Oracle Exadata Admin series.

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  • Search Engine Optimization - Great Ways to Increase the Traffic of Your Website

    Search Engine Optimization is a procedure with the help of which you can generate traffic on your websites with the help of some effective tools and methods. This method really helps all the business owners to increase the page ranking and popularity of their website. The SEO methods may target different kind of search results like video results, image results, local search and vertical search.

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