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• YOUR FREE, EXCLUSIVE, ONLINE UPDATE ON FANTASTIC NEW ORACLE PARTNER OPPORTUNITIES - REGISTER TODAY!

  - by Claudia Costa

  New products. New specializations. New opportunities.There really has never been a better time to be an Oracle partner! Find out exactly what Oracle's "Software. Hardware. Complete" strategy, and the latest developments in the OPN Specialized program, mean for your business.   Register now for the Oracle PartnerNetwork Days Virtual Event on the 29th of June at 11:00h to learn: How to use Oracle's uniquely comprehensive technology stack to grow your business How specialization with Oracle can significantly improve your competitive position How the Oracle PartnerNetwork is evolving to help you succeed Highlights include important updates from Oracle EMEA strategy, partner and product leaders, a live link to the Oracle FY11 Global Partner Kickoff, and interviews with local Oracle partners that are already enjoying the benefits of specialization. The event will also feature: ·         Live Q&A sessions with our speakers, ·         Virtual information booths packed with useful information ·         Opportunities to network with Oracle experts and your peers. ·         Special guest speaker is a former Microsoft executive who has used the principles of specialization with spectacular results to become one of the world's most successful social entrepreneurs. Plus, at the end of the event, you can submit your feedback form for your chance to win two passes to Oracle OpenWorld in San Francisco this September! CLICK HERE TO REGISTER NOW!

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• Anyone been successful changing their career without having to start over from scratch?

  - by Awaken

  I posted a similar question on careeroverflow, but stackoverflow is just way more active and has way more users, so hopefully someone out there can help answer. I am currently an embedded developer in the defense/aerospace world for a big company. While I like the benefits and the pay, it just isn't keeping me happy. The Paul Graham article: How To Do What You Love really struck home. The problem I face are my golden handcuffs. When I look at jobs out there, they all want 5+ years experience in that language with expertise in framework/tool/server A,B,C, etc... I have worked in C and C++ on the job (in a real-time embedded environment) with some small things in C# and Java. I'm learning Ruby now to expand my knowledge, but I don't consider myself an expert in anything right now. I'd love to work on desktop applications or web apps. Is it possible for someone like me to make the switch without going back to the start line? I'd love to leave the huge bureaucracy and work with some great developers. I'd be willing to work late and take a modest pay cut, but that isn't so clear just from a resume. For those that have altered their career path, how did you do it? For those people who are in charge of hiring, what can I do to help myself?

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• Starting to Program C++ and Java

  - by user0321

  So as the title states, I'm trying to start programming in C++ and Java. I took C++ and Java courses in high school and I'm trying to get back into it. Of course all I want to get working now is a simple "Hello World" program. Couple of things: I want to use an IDE. I've decided on Eclipse. I'm just confused about how I go about downloading/using it. For Java: I get stuck right on their download page. They show Eclipse Classic, Eclipse IDE for Java developers and Eclipse IDE for Java EE Developers. I only programmed in Notepad and compiled in command prompt. Question 1: Which version of Eclipse should I download? Question 2: Do I need to install the Java JDK or does it come built into Eclipse? For C++: I guess I download the separate Eclipse IDE for C/C++ developers? I'm not too sure. I remember using Microsoft Visual for C++. I remember it being weird though. Anyways Question 3: Which version of Eclipse should I download? Question 4: Does C++ have a Development Kit or does it come built into Eclipse?

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• strange behavior in Box2D+LibGDX when applying impulse

  - by Z0lenDer

  I have been playing around with Box2D and LibGDX and have been using a sample code from DecisionTreeGames as the testing ground. Now I have a screen with four walls and a rectangle shape, lets call it a brick. When I use applyLinearImpulse to the brick, it starts bouncing right and left without any pattern and won't stop! I tried adding friction and increasing the density, but the behavior still remains the same. Here are some of the code that might be useful: method for applying the impulse: center = brick.getWorldCenter(); brick.applyLinearImpulse(20, 0, center.x, center.y); Defining the brick: brick_bodyDef.type = BodyType.DynamicBody; brick_bodyDef.position.set(pos); // brick is initially on the ground brick_bodyDef.angle = 0; brick_body = world.createBody(brick_bodyDef); brick_body.setBullet(true); brick_bodyShape.setAsBox(w,h); brick_fixtureDef.density = 0.9f; brick_fixtureDef.restitution = 1; brick_fixtureDef.shape = brick_bodyShape; brick_fixtureDef.friction=1; brick_body.createFixture(fixtureDef); Walls are defined the same only their bullet value is set to false I would really appreciate it if you could help me have a change this code to have a realistic behavior (i.e. when I apply impulse to the brick it should trip a few times and then stop completely).

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• Attempting to install netgear N300 Wireless USB Adapter on Ubuntu without a present internet connection

  - by Liz

  Hello Linux/Ubuntu world out there. I don't have internet presently on the desktop I am trying to install the USB wireless adapter on. This seems to be the problem, which if the hardware would work would theoretically fix the problem. I can NOT access the internet via anything but wireless. I am presently on my laptop searching for answers while trying to install this little device. So any advice will have to take that into account. Now I have tried so far, using WINE which does not want to work, I have tried Windows Wireless Drivers which doesn't want to work, I have tried Software Sources, Other Software and it will not acknowledge the cdrom as a repository stating errors like E:Unable to stat the mount point /cdrom/ -stat (2: No such file or directory) However I can open the CD icon on my computer and access and browse the files. The computer can read the CD. I can read the CD. I've tried just plugging it in and seeing if the computer will automatically recognize the hardware, and go from there. That does not work either. I have tested USB port to just verify that the USB port works. It does. My laptop recognizes the hardware, and would easily install the software if I prompted it to. The difference is that my laptop is Vista, and I HATE Vista. Any tips, tricks?

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• Light mask map and camera for static lights in XNA Platformer

  - by JiminyCricket

  Using the example for some basic light maps found here : http://blog.josack.com/2011/07/xna-2d-dynamic-lighting.html, I've managed to create a lightmap texture using individual lightmaps and display it over a 2D tiled world as in the Platformer example. I'm using the very basic 2D camera example as found here : http://www.david-amador.com/2009/10/xna-camera-2d-with-zoom-and-rotation/, and the problem is that the lightmap texture scrolls with the player sprite. This looks pretty good and would be excellent for lighting the player sprite as it moves. But, I also want to be able to place static lights (or some initial position for the lights) that do not move with the player or camera. When I turn off the camera or give it a static position, it works as a series of static lights so I believe it's probably caused by the camera transformation matrix following the player around. I'm using RenderTarget2Ds, one for the main game screen after all the backgrounds and tiles are rendered, and one for the "lightmap" which consists of a black background and a bunch of lighting textures which are merged with it using additive blending. For now, I'm doing all of this in PlatformerGame.cs where the camera transformation and position is set and the level.Draw() call is made. I can't figure out how to separate the drawing of the lightmap and the camera following the player. I was thinking it would be better to render the shadows and lighting directly in the drawing of the level itself, but I'm not sure how to do that either because this technique requires RenderTarget2Ds and calling SpriteBatch.Begin()/End().

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• Oracle VM Server for x86 Training Schedule

  - by Antoinette O'Sullivan

  Learn about Oracle VM Server for x86 to see how you can accelerate enterprise application deployment and simplify lifecycle management with fully integrated support from physical to virtual servers including applications. Oracle offers a 3 day course Oracle VM Administration: Oracle VM Server for x86. This course  teaches you how to: Build a virtualization platform using the Oracle VM Manager and Oracle VM Server for x86. Deploy and manage highly configurable, inter-connected virtual machines. Install and configure Oracle VM Server for x86 as well as details of network and storage configuration, pool and repository creation, and virtual machine management. You can take this course as follows: Live Virtual Class - taking the course from your own desktop accessing a live teach by top Oracle instructors and accessing extensive hands-on exercises. No travel necessary. Over 300 events are current scheduled in many timezones across the world. See the full schedule by going to the Oracle University Portal and clicking on Virtualization. In Classroom - Events scheduled include those shown below:  Location  Date  Delivery Language  Warsaw, Poland  6 August 2012  Polish  Istanbul, Turkey  10 September 2012  Turkish  Dusseldorf, Germany  6 August 2012  German  Munich, Germany  10 September 2012  German  Paris, France  17 October 2012  French  Denver, Colorado, US  30 July 2012  English  Roseville, Minnesota, US  23 July 2012  English  Sydney, Australia  3 September  English For more information on this course and these events or to search for additional events or register your interest in an additional event/location, please visit the Oracle University Portal and click on Virtualization.

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• Do you know about the Visual Studio 2010 Architecture Guidance?

  - by Martin Hinshelwood

  If you have not seen the Visual Studio 2010 Architectural Guidance from the Visual Studio ALM Rangers then you are missing out. I have been spelunking the TFS Guidance recently and I discovered the Visual Studio 2010 Architectural Guidance. This is not an in-depth look at the capabilities of the architectural tools that shipped with Visual Studio 2010 Ultimate, but is instead a set of samples that lead you by example through real world scenarios. There is practical guidance and checklists to help guide lead developers and architects through the common challenges in understanding both existing and new applications. The content concentrates on practical guidance for Visual Studio 2010 Ultimate and is focused on modelling tools. There is integration into Visual Studio so all you need to do to access it is select “Architecture | Visual Studio ALM Rangers – Architecture Guidance”. Figure: Accessing the Architecture guidance is easy This brings up an inline version of the documentation and a kind of Explorer that lets you pick the tasks you want to perform and takes you strait to that part of the Guidance. Figure: Access the Guidance from right within Visual Studio 2010 This is a big help when you just want to figure out how to do something and can’t be bothered searching for and through the content in the provided Word documents. The Question and Answer section is full of useful content and there are six Hands-On-Labs to sink your teeth into: Creating extensions with the feature extension Explore an Existing System Scenario Extensibility Layer Diagrams New Solution Scenario Reusable Architecture Scenario Validation an Architecture Scenario I’m sold! Where can i get my hands on this fantastic content? Download the Visual Studio 2010 Architecture Tooling Guidance and if you like it don’t forget to add a review to make the team that put it together in their spare time feel all the mere loved.

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• Implmenting RLE into a tilemap or how to create a large 3D array?

  - by Smallbro

  Currently I've been using a 3D array for my tiles in a 2D world but the 3D side comes in when moving down into caves and whatnot. Now this is not memory efficient and I switched over to a 2D array and can now have much larger maps. The only issue I'm having now is that it seems that my tiles cannot occupy the same space as a tile on the same z level. My current structure means that each block has its own z variable. This is what it used to look like: map.blockData[x][y][z] = new Block(); however now it works like this map.blockData[x][y] = new Block(z); I'm not sure why but if I decide to use the same space on say the floor below it wont allow me to. Does anyone have any ideas on how I can add a z-axis to my 2D array? I'm using java but I reckon the concept carries across different languages. Edit: As Will posted, RLE sounds like the best method for achieving a fast 3D array. However I'm struggling to understand how I would even start to implement it? Would I create a 4D array the 4th being something which controls how many to skip? Or would the x-axis simply change altogether and have large gaps in between - for example [5][y][z] would skip 5 tiles? Is there something really obvious here which I am missing? The number of z levels I'm trying to have is around 66, it would be preferably that I can have up to or more than 1000 in x and y.

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• More on Oracle OpenWorld 2012

  - by Maria Colgan

  With only two weeks to go until Oracle OpenWorld, it is time to start planning your schedule. Every year folks ask me what Optimizer related sessions they should go and see at OpenWorld. Below are my top two picks for each day of the conference, to get your schedule started. Sunday, September 30th at 9am Beginning performance tuning Session UGF 3320 in Moscone West, room 2022 Sunday September 30th at 12:30pm Ten Surprising Performance Tactics Session UGF10426 in Moscone West, room 2016 Monday October 1st at 12:15pm The Evolution of Histograms in Oracle Database Session CON2803 in Moscone south, room 302 Monday October 1st at 1:45pm A Day in the Life of a Real-World Performance Engineer Session CON8404 in Moscone south, room 303 Tuesday October 2nd at 11:45am Oracle Partitioning: It’s Getting Even Better Session CON8321 in Moscone South, room 101 Tuesday October 2nd at 1:15pm Oracle Optimizer: Harnessing the Power of Optimizer Hints  Session CON8455 in Moscone South, room 103 Wednesday October 3rd at 3:30pm SQL Plan Stability: Post 11g Upgrade—Verizon Wireless’ Experience Session CON4485 in Moscone South, room 302 Wednesday October 3rd at 5pm Five SQL and PL/SQL Things in the Latest Generation of Database Technology Session CON8432 Moscone South, room 103 Thursday, October 4th at 11:15pm How the Query Optimizer Learns from Its Mistakes  Session CON3330 in Moscone west, room 3016 Thursday, October 4th at 12:45pm Oracle Optimizer: An Insider’s View of How the Optimizer Works Session CON8457 in Moscone South, room 104 Don't forget to pickup an Optimizer bumper sticker at the Optimizer demo booth. This year we are located in booth 3157, in the Database area of the demogrounds, in Moscone South. Members of the Optimizer development team will be there Monday through Wednesday from 9:45 am until 6pm.

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• Collision detection, stop gravity

  - by Scott Beeson

  I just started using Gamemaker Studio and so far it seems fairly intuitive. However, I set a room to "Room is Physics World" and set gravity to 10. I then enabled physics on my player object and created a block object to match a platform on my background sprite. I set up a Collision Detection event for the player and the block objects that sets the gravity to 0 (and even sets the vspeed to 0). I also put a notification in the collision event and I don't get that either. I have my key down and key up events working well, moving the player left and right and changing the sprites appropriately, so I think I understand the event system. I must just be missing something simple with the physics. I've tried making both and neither of the objects "solid". Pretty frustrating since it looks so easy. The player starting point is directly above the block object in the grid and the player does fall through the block. I even made the block sprite solid red so I could see it (initially it was invisible, obviously).

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• Chrome Mobile Monthly: Responsive vs Separate Sites

  Chrome Mobile Monthly: Responsive vs Separate Sites Join us on Wednesday October 31st at 9am PT for our Monthly Mobile Web Hangout! This month +Brad Frost will be joining us to talk about responsive design versus separate mobile sites. And in keeping with the season, it's a special Presidential Smackdown Edition. The US presidential race is in full swing, and the candidates are intensely debating the country's hot-button issues. The web design world is entrenched in our own debate about how to address the mobile web: should we create a separate mobile site or create a responsive experience instead? It just so happens that the two US presidential candidates have chosen different mobile web strategies for their official websites. In the red corner is Republican candidate Mitt Romney's dedicated mobile site, while in the blue corner is incumbent president Barack Obama's responsive website. Which will prevail? Sit back, crack open a cold one, and watch the battle unfold as Brad dissect the candidates' sites to uncover best practices and common mobile web pitfalls. From: GoogleDevelopers Views: 0 0 ratings Time: 00:00 More in Science & Technology

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• The Iron Bird Approach

  - by David Paquette

  It turns out that designing software is not so different than designing commercial aircraft.  I just finished watching a video that talked about the approach that Bombardier is taking in designing the new C Series aircraft.  I was struck by the similarities to agile approaches to software design.  In the video, Bombardier describes how they are using an Iron Bird to work through a number of design questions in advance of ever having a version of the aircraft that can ever be flown.  The Iron Bird is a life size replica of the plane.  Based on the name, I would assume the plane is built in a very heavy material that could never fly.  Using this replica, Bombardier is able to valid certain assumptions such as the length of each wire in the electric system.  They are also able to confirm that some parts are working properly (like the rudders).  They even go as far as to have a complete replica of the cockpit.  This allows Bombardier to put pilots in the cockpit to run through simulated take-off and landing sequences. The basic tenant of the approach seems to be Validate your design early with working prototypes Get feedback from users early, well in advance of finishing the end product   In software development, we tend to think of ourselves as special.  I often tell people that it is difficult to draw comparisons to building items in the physical world (“Building software is nothing like building a sky scraper”).  After watching this video, I am wondering if designing/building software is actually a lot like designing/building commercial aircraft.   Watch the video here (http://www.theglobeandmail.com/report-on-business/video/video-selling-the-c-series/article4400616/)

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• 2012 Oracle Fusion Middleware Innovation Awards Announced

  - by Tanu Sood

  Guest Contributor: Margaret Harrist. Originally posted on Oracle NewsCentral Companies from around the world were honored Tuesday for their innovative solutions using Oracle Fusion Middleware. This year’s 27 award winners, representing 11 countries and a wide span of industries, wowed the judges with a range of projects across eight product categories. A panel of judges scored each entry across multiple categories, including the uniqueness of their business case, business benefits, level of impact relative to the size of the organization, complexity and magnitude of implementation, and the architecture’s originality. In a general session just before the award presentation, Oracle Executive Vice President Hasan Rizvi highlighted a few of the winners’ original implementations, including Nike, Los Angeles Department of Water and Power, and Nintendo of America. Congratulations to the 2012 winners: Oracle Exalogic: Netshoes, Claro, UL, and Ingersoll Rand Oracle Cloud Application Foundation: Mazda Motor Corporation, HOTELBEDS Technology, Globalia, Nike, and Comcast Corporation Oracle SOA and Oracle BPM: NTT Docomo, Schneider National, Amadeus, and Motability Oracle WebCenter: News Limited, University of Louisville, China Mobile Jiangsu, Life Technologies Oracle Identity Management: Education Testing Service and Avea Oracle Data Integration: Raymond James and William Morrison Supermarkets Oracle Application Development Framework and Oracle Fusion Development: Qualcomm, Micros Systems, and Marfin Egnatia Bank Business Analytics (Oracle BI, Oracle EPM, Oracle Exalytics): INC Research, Experian, and Hologic

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• Mobile App Notifications in the Enterprise Space: UX Considerations

  - by ultan o'broin

  Here is a really super website of UX patterns for Android: Android Patterns. I was particularly interested in the event-driven notification patterns (aka status bar notifications to developers). Android - unlike iOS (i.e., the iPhone) - offers a superior centralized notifications system for users.   (Figure copyright Android Patterns)   Research in the enterprise applications space shows how users on-the-go, prefer this approach, as: Users can manage their notification alerts centrally, across all media, apps and for device activity, and decide the order in which to deal with them, and when. Notifications, unlike messages in a dialog or information message in the UI, do not block a task flow (and we need to keep task completion to under three minutes). See the Anti-Patterns slideshare presentation on this blocking point too. These notifications must never interrupt a task flow by launching an activity from the background. Instead, the user can launch an activity from the notification. What users do need is the ability to filter this centralized approach, and to personalize the experience of which notifications are added, what the reminder is, ability to turn off, and so on. A related point concerning notifications is when used to provide users with a record of actions then you can lighten up on lengthy confirmation messages that pop up (toasts in the Android world) used when transactions or actions are sent for processing or into a workflow. Pretty much all the confirmation needs to say is the action is successful along with key data such as dollar amount, customer name, or whatever. I am a user of Android (Nexus S), BlackBerry (Curve), and iOS devices (iPhone 3GS and 4). In my opinion, the best notifications user experience for the enterprise user is offered by Android. Blackberry is good, but not as polished and way clunkier than Android’s. What you get on the iPhone, out of the box, is useless in the enterprise. Technorati Tags: Android,iPhone,Blackerry,messages,usablility,user assistance,userexperience,Oracle,patterns,notifications,alerts

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• WizMouse Enables Mouse Over Scrolling on Any Window

  - by ETC

  WizMouse is a free and lightweight Windows application that enables a simple but effective trick: the ability to scroll the contents of a window that is under your mouse cursor without shifting the focus to that window. It may not seem like much, at first glance, but the ability to scroll a window without having to click on it and shift the focus of your current window is a huge time saver. Once WizMouse is installed simply mousing over any open window and engage your scroll wheel for instant scroll with no additional click or shift in focus necessary. You’ll get so used to it you’ll forget that it wasn’t built into Windows from the start. Hit up the link below to grab a copy of WizMouse, a free and Windows only application. WizMouse [Antibody Software] Latest Features How-To Geek ETC Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions How to Enable User-Specific Wireless Networks in Windows 7 How to Use Google Chrome as Your Default PDF Reader (the Easy Way) WizMouse Enables Mouse Over Scrolling on Any Window Enhance GIMP’s Image Editing Power with Gimp Paint Studio Reclaim Vertical UI Space by Moving Your Tabs to the Side in Firefox Wind and Water: Puzzle Battles – An Awesome Game for Linux and Windows How Star Wars Changed the World [Infographic] Tabs Visual Manager Adds Thumbnailed Tab Switching to Chrome

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• Wheel rotation, to change velocity of vehicle

  - by Lewis

  I update the velocity of my vehicle like so: [v setVelocity: ((2 * 3.14 * 100 * (wheel.getRotationValue / 360) / 30)) * gameSpeed]; // update on 60 fps this gets velocity on all frames divide by 60 for 1 frame. This is done in my update method in my world class. Now wheel.getRotationValue returns the rotation value which is worked out like this: - (void)ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; CGPoint location = [touch locationInView:[touch view]]; location = [[CCDirector sharedDirector] convertToGL:location]; if (CGRectContainsPoint(wheel.boundingBox, location)) { CGPoint firstLocation = [touch previousLocationInView:[touch view]]; CGPoint location = [touch locationInView:[touch view]]; CGPoint touchingPoint = [[CCDirector sharedDirector] convertToGL:location]; CGPoint firstTouchingPoint = [[CCDirector sharedDirector] convertToGL:firstLocation]; CGPoint firstVector = ccpSub(firstTouchingPoint, wheel.position); CGFloat firstRotateAngle = -ccpToAngle(firstVector); CGFloat previousTouch = CC_RADIANS_TO_DEGREES(firstRotateAngle); CGPoint vector = ccpSub(touchingPoint, wheel.position); CGFloat rotateAngle = -ccpToAngle(vector); CGFloat currentTouch = CC_RADIANS_TO_DEGREES(rotateAngle); float limit = 0.5; rotationValue += (currentTouch - previousTouch) * limit; } touching = YES; } Say I steer the vehicle to the far right of the screen, and want to move it to the far left, It wont start moving to the left of the screen until the rotationValue is past 0 degrees again (the wheel is in its center posistion) and is dragged past this value. Is there anyway to change the code I have above, so that movement on the wheel is recognised instantly and updates the velocity of v instantly too?

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• Calculating a child Position, Rotation and Scale values?

  - by Sergio Plascencia

  I am making my own game editor(just for fun) anyway I have problem that I had several days trying to resolve but I have been unsuccessful. Here goes... I have an object "A": Position: (3,3,3), Rotation: (45,10,0), Scale(1,2,2.5) And an object "B": Position: (1,1,1), Rotation: (10,34,18), Scale(1.5,2,1) I now make a parent/child relationship. "B" is a child of "A": A |--B When I do the relationship I need to re-calculate the Child("B") Position, Rotation and Scale such that it maintains its current position, rotation and scale(Location in world). So for child position "B" it would now be (-2, -2, -2) since now "A" it is center and (-2, -2, -2) will keep the object in its same position. I think I got the Position and scale figure out, but rotation I cant. So I was trying to figure out what to do and what I did is opened Unity and run the same example and I did noticed that when making an abject a child object the child object did not moved at all but had its Position, Rotation and Scale values changed(Related to the parent). For example: Unity (Parent Object "A"): Position: (0,0,0) Rotation: (45,10,0) Scale: (1,1,1) Unity (Child Object "B"): Position: (0,0,0) Rotation: (0,0,0) Scale: (1,1,1) When making it a parent child relation("B" is a child of "A") the child object("B") in its Rotation values now has: X: -44.13605 Y: -14.00195 Z: 9.851074 If I plug the same values to my editor(To the child "B" rotation X, Y, Z values) the object does not move at all. So I basically need to know how did Unity arrive at those rotation values for the child(What are the calculations?). If you can help and put all the equations for the Position, Rotation or Scale then I can double check I am doing it correctly but with the Rotation I really need help. Thanks!

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• Desktop Fun: Snow Covered Trees Wallpaper Collection

  - by Asian Angel

  Trees can become beautiful works of natural art when snow accumulates on them and make you feel as if you have stepped into another world when walking through them. So grab your jacket, gloves, and snowboots for a journey through this frosty scenery with our Snow Covered Trees Wallpaper Collection. Note: Click on the picture to see the full-size image—these wallpapers vary in size so you may need to crop, stretch, or place them on a colored background in order to best match them to your screen’s resolution. For more wallpapers be certain to see our great collections in the Desktop Fun section. Latest Features How-To Geek ETC HTG Projects: How to Create Your Own Custom Papercraft Toy How to Combine Rescue Disks to Create the Ultimate Windows Repair Disk What is Camera Raw, and Why Would a Professional Prefer it to JPG? The How-To Geek Guide to Audio Editing: The Basics How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 Arctic Theme for Windows 7 Gives Your Desktop an Icy Touch Install LibreOffice via PPA and Receive Auto-Updates in Ubuntu Creative Portraits Peek Inside the Guts of Modern Electronics Scenic Winter Lane Wallpaper to Create a Relaxing Mood Access Your Web Apps Directly Using the Context Menu in Chrome The Deep – Awesome Use of Metal Objects as Deep Sea Creatures [Video]

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• How can you Add Value to your Mobile Apps?

  - by Carlos Chang

  Author: Craig Mikus, Sr. Director, Enterprise Mobile Solutions Seems like every customer is either building or planning to build mobile apps, especially customer facing apps. Why? Inevitably, all companies want to improve the customer experience through more quality interactions that drive customer satisfaction, customer loyalty, new revenue streams, and even improve the way they service their customers. What better way than mobile apps? Right? But how can customers add more value to these mobile apps to drive more business benefit? Look closely, the answer just might be right in front of you. Still need another clue? What’s the first 4 letters of mobile – mo-bi? Or pronounced differently, More BI. That’s right – add more business intelligence to your overall mobile strategy. In today’s customer centric world where customer interactions and personalization are critical, it’s important to leverage a BI strategy that complements and feeds into your mobile strategy. For example, I was recently talking to a customer that was implementing a data warehouse project focused customer analytics. Their goal was to understand who are their best customers and why, develop customer profiles, identify customer trends & patterns, identify cross sell opportunities, and much more. The company then wanted to feed this information to marketing for targeted campaigns and programs. As we continued to talk, I asked my contact if they had plans to feed this information into their customer facing mobile apps to personalize the apps, target their interactions, and hopefully drive customer loyalty and new revenue streams? Two minutes later, my contact was calling his mobile development teams. So my advice to everyone, as you establish your enterprise mobile strategy and goals, remember that “mo-BI” is a critical component to add value to your mobile apps! So make sure you have “mo BI” in your mobile strategy. As I come to think of it, did you ever notice that Big Data also starts with BI?

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• JUnit Testing in Multithread Application

  - by e2bady

  This is a problem me and my team faces in almost all of the projects. Testing certain parts of the application with JUnit is not easy and you need to start early and to stick to it, but that's not the question I'm asking. The actual problem is that with n-Threads, locking, possible exceptions within the threads and shared objects the task of testing is not as simple as testing the class, but testing them under endless possible situations within threading. To be more precise, let me tell you about the design of one of our applications: When a user makes a request several threads are started that each analyse a part of the data to complete the analysis, these threads run a certain time depending on the size of the chunk of data (which are endless and of uncertain quality) to analyse, or they may fail if the data was insufficient/lacking quality. After each completed its analysis they call upon a handler which decides after each thread terminates if the collected analysis-data is sufficient to deliver an answer to the request. All of these analysers share certain parts of the applications (some parts because the instances are very big and only a certain number can be loaded into memory and those instances are reusable, some parts because they have a standing connection, where connecting takes time, ex.gr. sql connections) so locking is very common (done with reentrant-locks). While the applications runs very efficient and fast, it's not very easy to test it under real-world conditions. What we do right now is test each class and it's predefined conditions, but there are no automated tests for interlocking and synchronization, which in my opionion is not very good for quality insurances. Given this example how would you handle testing the threading, interlocking and synchronization?

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• Best practice for designing a risk-style board game

  - by jyanks

  I'm just trying to figure out how to set up the code for a game like risk... I would like it to be extensible, so that I can have multiple maps (ie- World, North America, Eurasia, Africa) so hardcoding in the map doesn't seem to make a whole lot of sense I'm a bit confused on how/where items should be stored/accessed. Here are the objects I see the game theoretically using: -Countries/Territories -Cities (Can be contained within territories) -Capitols -Connections -Continents -Map -Troops At the moment, I feel like: -A map should have a list of continents and countries. The continents would be more of a 'logical' thing where the continents would just be lists of countries that are checked for bonuses at the start of turns -Countries should have a list of countries that they're connected to for the connections What I can't figure out is: Where do I store the troops? Do I have an object for every single troop or do I just store the number of troops on a country object as an integer? What about capitols and cities? Do those just have a reference to the country they reside in? Is there anything I'm not seeing here that's going to screw me over in the long run with the way that I'm thinking about things now? Any advice would be appreciated.

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• Raspberry Pi and Java SE: A Platform for the Masses

  - by Jim Connors

  One of the more exciting developments in the embedded systems world has been the announcement and availability of the Raspberry Pi, a very capable computer that is no bigger than a credit card.  At $35 US, initial demand for the device was so significant, that very long back orders quickly ensued. After months of patiently waiting, mine finally arrived.  Those initial growing pains appear to have been fixed, so availability now should be much more reasonable. At a very high level, here are some of the important specs: Broadcom BCM2835 System on a chip (SoC) ARM1176JZFS, with floating point, running at 700MHz Videocore 4 GPU capable of BluRay quality playback 256Mb RAM 2 USB ports and Ethernet Boots from SD card Linux distributions (e.g. Debian) available So what's taking place taking place with respect to the Java platform and Raspberry Pi? A Java SE Embedded binary suitable for the Raspberry Pi is available for download (Arm v6/7) here.  Note, this is based on the armel architecture, a variety of Arm designed to support floating point through a compatibility library that operates on more platforms, but can hamper performance.  In order to use this Java SE binary, select the available Debian distribution for your Raspberry Pi. The more recent Raspbian distribution is based on the armhf (hard float) architecture, which provides for more efficient hardware-based floating point operations.  However armhf is not binary compatible with armel.  As of the writing of this blog, Java SE Embedded binaries are not yet publicly available for the armhf-based Raspbian distro, but as mentioned in Henrik Stahl's blog, an armhf release is in the works. As demonstrated at the just-completed JavaOne 2012 San Francisco event, the graphics processing unit inside the Raspberry Pi is very capable indeed, and makes for an excellent candidate for JavaFX.  As such, plans also call for a Pi-optimized version of JavaFX in a future release too. A thriving community around the Raspberry Pi has developed at light speed, and as evidenced by the packed attendance at Pi-specific sessions at Java One 2012, the interest in Java for this platform is following suit. So stay tuned for more developments...

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• Why doesn't libxml2 support XPath 2.0?

  - by Peter Krauss

  Libxml2 is the faster, stable and most popular "open DOM engine"... And the "XML C parser and toolkit of Gnome". The initial release of Libxml2 was September 1999, 13 years ago. XPath v1.0 was also released at 1999. XPath v2.0 became a recommendation on January 2007, 6 years ago. We can suppose that the Libxml2 community have time and people to develop a XPath2... So, what is the problem? Why doesn't libxml2 (or a "libxml2 fork" or an "experimental lib"!) support XPath 2.0? Some raised hypotheses to discussion at answers, Because Libxml2 community (and Gnome community) dislikes and have no motivation to develop something to XPath2 or xQuery. 1.1. XPath2 needs (by mathematical proof) a very heavy parser, much slower, etc. that is not suitable to real-world Libxml2 applications. 1.2. Other "ideologic" dislikes/motivations. Because it is written with C, and for XPath2 is better to develop with C++. Because the above hypothesis of "Libxml2 community have time and people" is false. Because XPath2 became stable in 2010 with its "Second Edition" release, and ~2.5 years is not (?) enough time.

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• What are the most commonly used and basic Apache htaccess redirects?

  - by bybe

  This question is here so we can offer users who are looking for information on how to make one or more common or basic redirects in Apache using the htaccess file. All future questions pertaining to finding information that is that is covered by the question should be closed as a duplication of this question. As per this Meta question. Whats the point in this question? The idea while not perfect is catch the most commonly asked questions regarding redirects using the htaccess on the Apache platform either on some type of lamp or a live server. The type of answers should be generally those that you could imagine are used by 100,000’s of sites world-wide and are constantly asked here at Pro Webmasters repeatedly over and over in various forms. A few examples of the type of answers we are looking for: How can I redirect non-www to www? How can I redirect a sub domain to the main domain? How can I redirect a sub folder from domain to a root or a subdomain? How can I redirect an old URL to a new URL? A few examples of the types of answers that we are not looking for: Answers that do not involve a redirect. Any answers relating to NGinx, IIS or any other non-Apache platform. Answers that involve custom and complex string or query removals. Resources for Advanced to Complex Mod_Rewrite Rules: Everything you ever wanted to know about mod rewrite rules but were afraid to ask Please note: that this question is still in construction and may need some refining either by myself or a real moderator of Pro Webmasters, if you have any concerns or questions please use the meta page I made a few days back here.

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