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• Saddling your mountain lion with JDeveloper

  - by Blueberry Coder

  Last October, Apple released Java Update 2012-006. This patch brought the Apple-provided JDK for OS X Lion v10.7 and OS X Mountain Lion v10.8 to version 1.6.0_37. At the same time, it disabled the Apple Java plugins and removed the Java Preferences panel that enabled users to manage the various Java releases on their computer. On the Windows and Linux platforms, JDeveloper 11g R1 has been certified  to run on Java 7 since patch set 5. This is not the case on OS X.   ( The above is not a typo. Apple's OS for personal computer is now known as OS X; the « Mac » prefix has been dropped with the 10.8 release. And it's pronounced « Oh-Ess-Ten », by the way. Yes, I am a nitpicker. I know... ) Please note JDeveloper 11g R2 is not certified either. On any platform. It will generally work, but there are known issues with ADF Mobile. Personally, I would recommend to wait for 12c before going to JDK 7.  Now, suppose you have installed Oracle's JDK 7 on your Mac. JDeveloper will not run on it. It will even not install. Susan and I discovered this the hard way while setting up the ADF Mobile hands-on lab we ran at the UKOUG 2012 conference. The lab was a great success nevertheless, attracting nearly a hundred delegates. It was great to see the interest ADF Mobile already generates, especially among PL/SQL Developers and DBAs. But what did we do to make it work?  While Java Update 2012-006 removed the Java Preferences panel, it leaved in place OS X's command-line Java infrastructure. Thus, it is possible to invoke the Apple JDK 6 to start the JDeveloper installer. Suppose your user is named « Fred », and that the JDeveloper installer is on your desktop. You can execute the following command in a terminal window (on a single line) to start the installer:  /usr/libexec/java_home --version 1.6.0  --exec java -jar /Users/Fred/Desktop/jdevstudio11116install.jar  The JDeveloper installer, being provided a valid JDK reference, will set up the IDE and embedded WebLogic Server instance accordingly. Clever engineering at its finest!

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• True Ubuntu on Chromebook ARM (samsung)

  - by Vincent beaurain

  I have installed Ubuntu 13.04 on my desktop (runs like a charm). Then I used Crouton to install Ubuntu 12.04 on my chromebook samsung (ARM). It also works quite good. But here comes my question. Can we have a true Ubuntu (preferably 13.04) on my ARM chromebook? It seems that the Crouton/Ubuntu is not 100% the real thing. The best option would be to have the full Ubuntu 13.04 and remove the Chrome OS.

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• After upgrading to 12.10 usb drives fail to mount

  - by John Shore

  Following upgrade to 12.10, my usb drives - both pen drives and a usb hard drive - fail to mount with the error message: Unable to mount *name of drive* volume Adding read ACL for uid 1000 to '/media/*my home file name*' failed: Operation not supported This is on a desktop Dell Inspiron 530. I also have a Dell Inspiron Mini 10 netbook which I also upgraded to 12.10 (slightly smaller installation on a flash hard drive). all devices mount automatically without problems on this computer.

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• Web-Based Custom Accounting Software in PHP - Customize As Per Your Business

  Most businesses, accountants and financial auditors are still using old desktop-based accounting software for their accounting needs. This is changing though, and for very good reasons. Most of the major players in the accounting software industry have launched online software-as-a-service solutions allowing customers to pay a monthly fee to get access to their books online.

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• Best way to implement an AI for Dominion? [on hold]

  - by j will

  I'm creating a desktop client and server backend for the game, Dominion, by Donald X. Vaccarino. I've been reading up on AI techniques and algorithms and I just wanted to what is the best way to implement an AI for such a game? Would it better to look at neural networks, genetic algorithms, decision trees, fuzzy logic, or any other methodology? For those who do not know how Dominion works, check out this part of the wikipedia article: http://en.wikipedia.org/wiki/Dominion_(card_game)#Gameplay

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• Custom keybindings without gnome-settings-daemon

  - by Carlito

  I am using Ubuntu 12.04 (Fallback) and I am trying to slim it down, mostly for fun/learning experience. I killed gnome-settings-daemon because I set up my theming from elsewhere. But now some of my keybindings are lost. I think the windowmanager ones are still working, like Alt-Tab and switch workspace. But my mediakeys to change volume and my custom keybindings are not working anymore. Is there a different way to save custom keybindings? Do I really need to run settings-manager to setup my keybindings?

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• EPM 11.1.2.1 - Smartview client and HFM office provider

  - by user809526

  If your connection to the smartview provider is very slow, because the login part takes a long time (user directory slowness, ...), consider adding on the desktop side a Windows parameter: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\InternetSettings\ ReceiveTimeout 300000 to avoid being prompted over and over again for username/password This is an addition to the support doc id: "Smart View 11.1.2.1 Keeps Prompting For Username And Password For Financial Management Provider [ID 1353294.1]"

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• Compiz with Intel video card not working after upgrade to 11.04

  - by fazi

  After upgrade to ubuntu 11.04 from 10.10 My compiz stop working I have no cube effects and preview files and other compiz stuff. I have intel x4500 (00:02.1 Display controller: Intel Corporation 4 Series Chipset Integrated Graphics Controller (rev 03) ) glxinfo name of display: :0 display: :0 screen: 0 direct rendering: Yes server glx vendor string: Brian Paul server glx version string: 1.4 Mesa 7.11-devel I have removed compiz, gnome (witch --purge) and install again, nothing works :( Im using default ubuntu desktop (no unity) any idea how can I fix this?:

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• How to auto-unlock Keyring Manager in 12.10?

  - by Torben Gundtofte-Bruun

  How can I auto-unlock the Keyring Manager in 12.10? This answer for 11.10 doesn't seem to apply because the Keyring Manager looks different in 12.10 so I can't follow the instructions. I have set up my machine to automatically log in to my account. I don't mind the lesser security of having the keyring automatically unlocked. (This is still a home desktop computer of a simple user, not a missile launch system.)

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• Week in Geek: Malware for Android has Increased 472% since July

  - by Asian Angel

  This week we learned how to safely eject your USB devices from the desktop context menu, make the Kindle Fire Silk Browser *actually* fast, “disable Windows startup programs, use DNS names on your home network, & restore a vintage keyboard”, print or save a directory listing to a file, make your computer press a key every X seconds, and more. How to Make the Kindle Fire Silk Browser *Actually* Fast! Amazon’s New Kindle Fire Tablet: the How-To Geek Review HTG Explains: How Hackers Take Over Web Sites with SQL Injection / DDoS

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• OT: Improbable use for an iPad?

  - by merrillaldrich

  Here's an interesting tidbit: I have noticed an even more pronounced trend toward centralized or virtual workstations lately. Both my wife and I can sit at home, as we are now, at the dining room table and work on our laptops (exciting life, I know!) but both of us are not actually working locally on these machines. We are both remoting into machines at our respective workplaces. Hers is a desktop machine physically located at her desk, while mine is a virtual workstation in my company's data center...(read more)

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• Nautilus 3.6 est une catastrophe pour le créateur de Linux Mint, qui présente Nemo, le fork du gestionnaire de fichiers

  Nautilus 3.6 est une catastrophe pour le créateur de Linux Mint qui présente Nemo, le fork du gestionnaire de fichiers Le ton est à la provocation dans le monde de l'open source. Après Miguel De Icaza, le créateur de l'environnement de bureau GNOME, qui a déclaré que Linux avait échoué sur le Desktop, s'attirant les foudres de Linus Torvalds, c'est au tour d'un autre acteur de l'open source de faire une déclaration toute aussi controversée. Clement Lefebvre, créateur et responsable du développement de la distribution Linux Mint vient de déclarer dans un billet de blog que Nautilus 3.6 est une catastrophe.

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• How to find out if my hosting's speed is good enough?

  - by Mert Nuhoglu

  There are lots of different online performance tests: Google PageSpeed Insights iWebTool Speed Test AlertFox Page Load Time WebPageTest Also there are several desktop/client software such as: ping tool YSlow Firebug's Net console Fiddler Http Watch I just want to decide if my hosting provider has a good enough performance or if I need to switch my hosting to another provider. So, which tool should I use to compare my hosting provider with other hosting providers?

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• Iomega's Big Network Storage for Small Business

  This ain't no desktop NAS box, no sir. Iomega's new network storage array offers enterprise features to satisfy the needs of up to 250 users.

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• Using DesktopCouch without Ubuntu One?

  - by burli

  I want to know if it is possible to use DesktopCouch without UbuntuOne, but with a local CouchDB Server. I found a pairing Tool, but this crashes, when I try to pair two computer. I can find the local Desktop Couches with the Avahi Zeroconf Browser and it should be possible to find them with Python and start a replication To make a long story short: I want to sync DesktopCouch Databases in my local network without Ubuntu One. Is that possible?

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• How to emulate Mode 13h in a modern 3D renderer?

  - by David Gouveia

  I was indulging in nostalgia and remembered the first game I created, which used Mode 13h. This mode was really simple to work with, since it was essentially just an array of bytes with an element for each pixel on the screen (using an indexed color scheme). So I thought it might be fun to create something nowadays under these restrictions, but on modern hardware. The API could be as simple as: public class Mode13h { public byte[] VideoMemory = new byte[320 * 200]; public Color[] Palette = new Color[256]; } Now I'm wondering what would be the best way to get this data on the screen, using something like XNA / DirectX / OpenGL. The only solution I could think of was to create a texture with the same size as the VideoMemory array, write the contents of VideoMemory to it every frame, then render that texture in a full screen quad with the correct aspect ratio and using point texture filtering for that retro look. Is there a better way?

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• The Gates Books&ndash;Finished

  - by MarkPearl

  Today I can finally say that I finished both of my Bill Gates books that had been lying on the shelf for several years. The books were… The Road Ahead (1995) Business @ the Speed of Thought (1999) I enjoyed “The Road Ahead”, purely because it was fun to read about someone looking into the future at technology, while I could read it looking at the past. In fact I was quite impressed with how much he got right and it was also nice to remember “The good old days”. Business @ the Speed of Thought was a harder read for me. The book still had some good insights, but was tough going at times (possibly because it was several hundred more pages than the first). All that being said, I can now finally place them back on the shelf knowing that they have been read.

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• SQL vs. Oracle Live Debate (AKA Smackdown!)

  - by Peter W. DeBetta

  A few years ago I was speaking at a conference in Raleigh, NC where Ted Neward and I found a fun way to promote a Java vs. .NET debate that was planned one evening. We stood in the middle of a crowd during one of the breaks and starting “arguing” about Java vs. .NET with one another. Our voice levels quickly raised and we ended it by slapping each other across the face with a glove to request a challenge. It was a great way to segue to our announcing of the actual debate planned later that evening....(read more)

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• dot42 vs Xamarin to develop in C# for Android phones [on hold]

  - by opt

  does anyone have experience with both dot42 and Xamarin to develop C# apps for Android? Could you please say why one should prefer one over the other? I like the free Visual Studio integration that is offered by dot42 (while Xamarin requires a subscription for this, and the business one which is quite expensive). I would also like to know if Visual Studio integration actually means that one could use all libraries available for desktop apps. Thank you.

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• An update on Google Cloud Print

  In April, we announced Google Cloud Print, a service that enables any app (web, mobile, desktop), on any device, OS, or browser, to print to any printer. Development...

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• How to do fluid dynamics like “Where's My Water”?

  - by Edgar Miranda

  There is a game on the app store called "Where's My Water" that is really fun and uses fluid dynamics in its gameplay. You can check out a video of the gameplay... You use your finger to remove dirt from the screen, and then the water just flows to the new area. Anyone knows what engine this was made in and how they where able to get the fluid dynamics in there? I'm using the Corona SDK for mobile development and want to do something similar like this (a game with fluid dynamics).

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• Week in Geek: Microsoft Kills a Huge Spammer Botnet

  - by Asian Angel

  This week we learned how e-mail works, to “fix the Windows Boot Record after a GRUB Loader meltdown, share Mac Folders with a Windows PC, & reinstate the Outlook Reminder Bell”, to use two Android tools to help cut down on phone bills, the first things that our readers recommend doing after installing a new OS, had fun setting up unique desktops with a Terran Solar System Customization set, and more. Photo by Bill Ward’s Brickpile.HTG Explains: What’s the Difference Between the Windows 7 HomeGroups and XP-style Networking?Internet Explorer 9 Released: Here’s What You Need To KnowHTG Explains: How Does Email Work?

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• How do I avoid "Developer's Bad Optimization Intuition"?

  - by Mona

  I saw on a article that put forth this statement: Developers love to optimize code and with good reason. It is so satisfying and fun. But knowing when to optimize is far more important. Unfortunately, developers generally have horrible intuition about where the performance problems in an application will actually be. How can a developer avoid this bad intuition? Are there good tools to find which parts of your code really need optimization (for Java)? Do you know of some articles, tips, or good reads on this subject?

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• Choice of Input / music / graphics libraries for an indie game - what factors should I consider?

  - by RusselMeMan

  I was wondering which tools (grapics-sound-input libraries, game engine libraries) that the following indie games used: Braid Superbrothers: S&S Super Meat Boy Limbo Fez (I know this one is XNA) Also, what is in common use in production games? My guess for game development in C++ is: -DirectX is most common for  Windows games -SDL or SDL+OpenGL is most common for  Linux games -OpenGL + Apple APIs are most common for OSX development What do most indie game projects use? If I wanted to casually build my own game for fun in C++ with the idea of possibly releasing it to Steam or something someday, is there anything I should be concerned about if I make it with DirectX for music/sound/input and build my own game engine? Thanks!

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• Set Ctrl+Alt+T to open a maximized terminal

  - by queueoverflow

  I use the Ctrl+Alt+T shortcut to open a terminal, but I cannot see how I can get it maximized. When I start it manually, I can simply do a gnome-terminal --maximize, but that does not apply for the shortcut. Even a changing of the .desktop files did not change anything. Any way to let the shortcut open a maximized terminal window? I use regular Gnome 2 on Ubuntu 11.04 with no compositing effects.

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