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• Global Day of Coderetreat

  - by Tori Wieldt

  From the coderetreat.org website: Coderetreat is a day-long, intensive practice event, focusing on the fundamentals of software development and design. By providing developers the opportunity to take part in focused practice away from the pressures of 'getting things done', the coderetreat format has proven itself to be a highly effective means of skill improvement. This year, the Global Day of Coderetreat is happening on December 8. It sounds cool and fun, and of course, Java Champions and Java developers around the world are involved. Here's a small sampling: Chennai, India São Paulo, Brazil Skopje, Macedonia Kraków, Poland You can go to http://globalday.coderetreat.org/  to look up events near you. It's a great opportunity to practice your craft. Here's a video from an event last year to get a flavor:

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• Troubleshooting Windows 7 HomeGroup

  p The HomeGroup feature in Windows 7 is a great tool to use if you want to easily share files or printers with other Windows 7 computers on your home network. Setting up a HomeGroup definitely has its perks but as with anything there are times when you could run into trouble. When you consider the fact that you are sharing files or printers across different computers the likelihood of having to troubleshoot your HomeGroup seems to increase. Here are some tips to use if you find that your Windows 7 HomeGroup is not functioning as it should. p ... ALM Software Solution ? Try it live! Requirements Management, Project Planning, Implementation Tracking & QA Testing.

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• No sound after clean install

  - by John Cheednik

  Did a clean install of Ubuntu 12.10 and everything working great except for the sound. Ubuntu doesn't even seem to be recognizing the fact my HP dv6000 has the capability of making sound! I have the dummy output problem, and when I try to open alsamixer using terminal I get the message that no such file or directory exists. I can't get it to recognize any soundcards or audio devices at all. I've been working on the problem for a couple days now and have even taken the laptop apart to ensure that all cables are properly attached... When I go into the PhoenixBIOS there are no sound options that I can find. The laptop does make a loud beep if I press buttons in the BIOS, but once it boots to the hard drive, the thing is mute. HELP!

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• Friday Tips #34

  - by Chris Kawalek

  Happy Friday! I wanted to take the opportunity this week to not give out a tip per se, but to point you to a really fantastic white paper that you might have missed. It's called What It Takes to Deploy and Manage a Private Cloud with Oracle VM. The paper is filled with useful information and it's written in a really entertaining style, tackling the IT challenges of a friendly systems administrator named Dave. It gives a great overview of application-driven virtualization and covers Oracle VM, Oracle VM Templates, Oracle VM Storage Connect, and Oracle Enterprise Manager. Read the white paper What It Takes to Deploy and Manage a Private Cloud with Oracle VM. See you next week! -Chris 

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• Open Source License that prevents re-selling

  - by Vaccano

  I have an open source project that is a add-in to TFS (ie it is for developers and those using TFS.) It is currently using the GPL. But it occurs to me that the GPL does not really represent what I am trying to do with my license. I want my code to be free to everyone who wants to use it. And if you modify it and use it then that is great too. You should not have to open source your modifications. But I would like to block someone from building my code and selling it. Or modifying it and selling it. (Anyone that wants to do that should have to negotiate a separate license with me.) Is there an open source license that prevents re-selling, but allows full non-vending use for a person/company that downloads it?

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• Why does everyone dislike PHP? [closed]

  - by SomeKittens

  I'm primarily a Java/Python programmer, but I just picked up an entry-level job doing web development. I had to learn PHP, and several of my CS friends told me that it would stunt my coding ability/be terrible to program in/murder me in the middle of the night. So far, there have been annoying moments with the language (one particular thing that bugs me is the syntax for calling functions...), but nothing living up to the statements of my friends. I still haven't learned very much about the language. Is their hate justified? Why or why not? A few quotes I've seen about PHP: Haskell is faster than C++, more concise than Perl, more regular than Python, more flexible than Ruby, more typeful than C#, more robust than Java, and has absolutely nothing in common with PHP. Audrey Tang "PHP is a minor evil perpetrated and created by incompetent amateurs, whereas Perl is a great and insidious evil, perpetrated by skilled but perverted professionals." Jon Ribbens. Programmer.

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• Event Driven Programming 101

  - by JHarley1

  Good Morning, I previously asked the Q. of how Event Handlers Work (which I got a great answer for). I would now like to understand the basics of how are events are associated with on-screen objects? An explanation of how Events are associated with on Screen Objects: The application registers the Event, the Event Handler and the Component with the GUI Server. When an Event is detected the GUI Server has to link an Event to a Window and then to a Component, it then consults the Event / Component Table to identify which Handler (s) to be executed. I am having problems finding resources/papers that have mention of this process - especially of a Event / Component Table - can anyone clarify?

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• Comments in code

  - by DavidMadden

  It is a good practice to leave comments in your code.  Knowing what the hell you were thinking or later intending can be salvation for yourself or the poor soul coming behind you.  Comments can leave clues to why you chose one approach over the other.  Perhaps staged re-engineering dictated that coding practices vary.One thing that should not be left in code as comments is old code.  There are many free tools that left you version your code.  Subversion is a great tool when used with TortoiseSVN.  Leaving commented code scattered all over will cause you to second guess yourself, all distraction to the real code, and is just bad practice.If you have a versioning solution, take time to go back through your code and clean things up.  You may find that you can remove lines and leave real comments that are far more knowledgeable than having to remember why you commented out the old code in the first place.

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• Script for Creating Multiple ZIP archives from Multiple Folders

  - by user39288

  I want to be able to right click multiple folders inside of a directory in nautilus, and be able to create seperate zip archives from those folders in that same directory. If possible it would also be great if it automatically deleted the old folders. So, if I have 30 folders, I want to select those using control-shift, then go to scripts and run the script, and just have those 30 folders compressed into seperate .zip archives, and have the old folders deleted (if possible). Anyone know how to accomplish this? I suck with terminal, and am looking for a script solution.

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• Atheros AR9285 wireless extremely slow

  - by ignacio

  I recently upgraded to Ubuntu 12.10, and things were going great.. But suddenly, the wifi connection went extremely slow. I have a 20 M connection and normally download files al 1 MB/s or so.. but today i dont get any faster than 120 KB/s. Also, if i use wired connection, the speed goes normal. Following some advice on the net i changed network-manager with wicd, but the issue hasn't gone away Any clues? PD. my wireless card is Atheros AR9285

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• Nvidia Fullscreen Metanode "Sliding" Issue

  - by user68202

  i have 2 monitors, the left one is my "main" monitor with 1920x1080_120, the right one my second with 1680x1050_60. (i have a nvidia card setup with twinview) when i play a game or something in fullscreen mode, the full resolution is used in fullscreen (monitor 1 + monitor 2). i read something about the metanodes i can use to shut down the one monitor that i dont need durning a "fullscreen session". i used the following: Option "metamodes" "DFP-0: 1920x1080_120 +0+0, DFP-2: 1680x1050_60 +1920+0; DFP: 1920x1080_120 +0+0, NULL" Its working great, the second (right) monitor is shutting down when i press "CTRL ALT +" and is starting agin when i press the same keystroke. But in the second mode when the second monitor is "down", i got the full "monitor 1 + monitor 2" resolution on my first (left) monitor, i can move my mouse to the right to see the contents of the second monitor and move it again to the left to the what is normally seen on the first monitor. Its something sliding between the 2 monitors on one display. How can i avoid this?

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• My Favourite Two Buttons in Denali CTP1 SSIS

  In SSIS for SQL Server 2005 and SQL Server 2008 when you delete something from the design surface it is gone.  The only real way of getting the deleted item(s) back is to revert to a previous version of the package or to redo the deleted items manually.  Neither of these options is particularly great.  I have made this mistake before and cursed not having CTL+Z and CTL+Y.  Denali changes this.  We can now undo and redo.  Very very welcome.  Well done, finally, the SSIS team.

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• Ubuntu 12.04, Intel Centrino 1030 Wireless-N 1030 not able to connect to wireless

  - by playcat

  I saw several similar threads, but none really does it... I have 12.04 precise x64 installed and things worked great for some 10 days. Then it all stopped - I wasn't able to connect any more. Even more, things were so scre*ed up that it were showing other network's name while connecting :( I have an Asus K53SM-SX054. Here's the text from dmesg related to my card: http://fixee.org/paste/iaw23iw/ Basically, it's Intel Centrino Wireless-N 1030. Not sure if it's important, I had Gnome with unity and then moved to KDE. Any ideas what to do? I'm on the verge of reinstalling things, but I already set plenty of things and have some things that I'd need to back up... and I'm rather lazy to go on with it :) EDIT: My wlan network is hidden. Not sure if this should have any influence.

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• How can I protect my save data from casual hacking?

  - by Danran

  What options are there for saving game data in a secure manner? I'm interested in solutions specifically tailored for C++. I'm looking for something that is fast and easy to use. I'm only concerned about storing simple information such as Which levels are and are not unlocked The user's score for each level I'm curious again to know what's out there to use, any good libraries to use that give me nice, secure game data files that the average player can't mess with. I just found this here which looks very nice, but it would be great to get some opinions on potential other libraries/options out there.

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• Welcome to our Friday tips series!

  - by Chris Kawalek

  Today we're starting a brand new blog series. For your Friday afternoon reading, we'll be posting a technical tip or question and answer on a technical topic. We'll start by introducing ideas on our own, but we'd really like it if you were involved and asked us questions via Twitter! Tag your tweet with #AskOracleVirtualization and we'll consider your question for the blog. Today's tip is on Storage and Oracle Virtual Desktop Infrastructure: Question: I run Oracle Virtual Desktop 3.4.1 on Solaris and use a local ZFS storage pool.  How should I configure my ZFS ARC cache?  Answer by John Renko, Consulting Developer, Oracle: Oracle recommends about 5G of ARC cache per template in use to achieve up to a 90% disk read offload. Set your ARC min=max to reserve the maximum amount of your remaining memory for your running VMs. In /etc/system: set zfs:zfs_arc_min = 5368709120 set zfs:zfs_arc_max = 5368709120 The amount you need to reserve will depend on your template but this has proven to be a great start for a typical windows 7 VM running productivity applications.

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• Why does Facebook convert PHP code to C++?

  - by user72245

  I read that Facebook started out in PHP, and then to gain speed, they now compile PHP as C++ code. If that's the case why don't they: Just program in c++? Surely there must be SOME errors/bugs when hitting a magic compiler button that ports PHP to c++ code , right? If this impressive converter works so nicely, why stick to PHP at all? Why not use something like Ruby or Python? Note -- I picked these two at random, but mostly because nearly everyone says coding in those languages is a "joy". So why not develop in a super great language and then hit the magic c++ compile button?

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• A Change of Seasons...

  - by James Michael Hare

  As some of you already know, today is my last day at Scottrade. It has been a great place to work and I'll miss all the relationships I've formed over the last 5 years immensely! Starting Monday, I will be taking a new position at Amazon.com in Seattle. It should be an exciting new adventure and I look forward to sharing more about my experiences in the days to come! I do intend to continue blogging (after the move settles down) about C# as I'm able, and may mix in some Java as well as I rekindle (Amazon? Kindle? Get it? Okay, that was lame, I know...) my knowledge of the language for my new job responsibilities. I'll miss all the relationships I've developed with the .NET community in St. Louis and the surrounding area, and hope to come back sometime to participate in future Days of .NET conferences, if able! Stay tuned for more updates!

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• Oracle Catalog – product overview for middleware

  - by JuergenKress

  Are you looking for quick overview of all the Oracle product and solutions? The answer is the Oracle Catalog which helps you to understand the whole stack from hardware, database, middleware all the way to applications. A great source and helpful for sales persons and customers. Make sure you add the file to your mobile device. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit  www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Technorati Tags: Catalog,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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• APress Deal of the Day - 11/Nov/2011 - Accelerated C# 2010

  - by TATWORTH

  Today's $10 Deal of the day from Apress at http://www.apress.com/9781430225379 is Accelerated C# 2010 "C# 2010 offers powerful new features, and this book is the fastest path to mastering them—and the rest of C#—for both experienced C# programmers moving to C# 2010 and programmers moving to C# from another object-oriented language. " I cannot improve on the description on thew APress web site: "If you're an experienced C# programmer, you need to understand how C# has changed with C# 2010. If you're an experienced object-oriented programmer moving to C#, you want to ramp up quickly in the language while learning the latest features and techniques. In either case, this book is for you. The first three chapters succinctly present C# fundamentals, for those new to or reviewing C#. The rest of the book covers all the major C# features, in great detail, explaining how they work and how best to use them. Whatever your background or need, you’ll treasure this book for as long as you code in C# 2010."   Can't code withoutThe best C# & VB.NET refactoring plugin for Visual Studio

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• JCP Elections, JUG Candidates

  - by Tori Wieldt

  The JCP elections for the JCP Executive Committee (EC) have started today. The ratified candidates are:  Cinterion, Credit Suisse, Fujitsu and HP.The elected candidates are (9 candidates, 2 open seats):  Cisco Systems, CloudBees, Giuseppe Dell'Abate, Liferay, London Java Community, MoroccoJUG, North Sixty-One, Software AG, and Zero Turnaround. For community representation, the London Java Community is running for re-election. They have helped with JUGs participation on the JCP, and they need community votes to stay there doing great work! Also, the Morroco JUG is running for election for the first time.  Learn more about the JCP Elections, read the JCP Program Office blog "2012 EC Election Ballot open; Meet the Candidates Call Tomorrow." So, please, if you are a registered JCP member, don't forget to cast your vote!

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• Are there any off the shelf solutions for feature use analysis?

  - by Riviera

  I write a set of productivity tools that sells online and have tens of thousands of users. While we do get very good feedback, this tens to come from only the most vocal users, so we fear we might be missing the big picture. We would like to know if there is any off the shelf (or nearly so) solution to capture usage of different features and to report usage patterns and trends over time. Note: These tools are native apps, not web-based. I know about Google Analytics and the like. They're great, but I'm looking for native code solutions.

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• Using todolist (abstract spoon) on ubuntu 11.10?

  - by Tal Galili

  I wish to run todolist 6.3.8 (http://www.codeproject.com/KB/applications/todolist2.aspx) on ubuntu 11.10. I have installed the latest wine and winetricks. I have tried running: http://www.codeproject.com/KB/applications/todolist2.aspx winetricks vcrun2005 winetricks vcrun2008 winetricks vcrun6 Which installed all of the components. When I went to run todolist.exe, it started fine with the "first time wizard" (asking me where to save definitions and what file to open first), and then it stopped saying "the program todolist.exe has encountered a serious problem and needs to close. we are sorry for the inconvenience". What can I do to make this (great) software work on ubuntu? Thanks.

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• Abstract skill/talent system implementation

  - by kiliki

  I've been making small 2D games for about 3 years now (XNA and more recently LWJGL/Slick2D). My latest idea would involve some form of "talent tree" system in a real time game. I've been wracking my brain but can't think of a structure to hold a talent. Something like "Your melee attack is an instant kill if behind the target" I'd like to come up with an abstract object rather than putting random conditionals into other methods. I've solved some relatively complex problems before but I don't even know where to begin with this one. Any help would be appreciated - Java, pseudocode or general concepts are all great.

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• De-facto standards for customer information record

  - by maasg

  I'm currently evaluating a potential new project that involves creating a DB for typical customer information (userid, pwd, first & last name, email, adress, telfnr ...). At this point, requirements are only roughly defined. The customer DB is expected in the O(millions) of records. In order to calculate some back-of-the-envelope numbers for DB sizing and evaluate potential DB options & architectures, I'm looking for some de-facto standards for these kind of records. In particular, the std size of every field (first name, last name, address,...) or typical avg for a simple customer record would be great info. With so many e-commerce websites out there, there should be some kind of typical config that can be reused and avoid re-inventing the wheel. Any ideas?

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• Learning PostgreSql: Embracing Change With Copying Types and VARCHAR(NO_SIZE_NEEDED)

  - by Alexander Kuznetsov

  PostgreSql 9.3 allows us to declare parameter types to match column types, aka Copying Types. Also it allows us to omit the length of VARCHAR fields, without any performance penalty. These two features make PostgreSql a great back end for agile development, because they make PL/PgSql more resilient to changes. Both features are not in SQL Server 2008 R2. I am not sure about later releases of SQL Server. Let us discuss them in more detail and see why they are so useful. Using Copying Types Suppose...(read more)

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