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  • Customer Feature - "Test for Success"

    To compete, companies need to deploy their applications sooner, at lower cost, and without service interruption—and the way to do that is through rigorous testing in real-world conditions. Find out how Oracle can ensure bulletproof application quality and help organizations meet their mission-critical operational goals with new testing solutions.

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  • Which techniques to study?

    - by Djentleman
    Just to give you some background info, I'm studying a programming major at a tertiary level and am in my third year, so I'm not a newbie off the street. However, I am still quite new to game programming as a subset of programming. One of my personal projects for next semester is to design and create a 2D platformer game with emphasis on procedural generation and "neato" effects (think metroidvania). I've written up a list of some techniques to help me improve my personal skills (using XNA for the time being). The list is as follows: QuadTrees: Build a basic program in XNA that moves basic 2D sprites (circles and squares) around a set path and speed and changes their colour when they collide. Add functionality to add and delete objects of different sizes (select a direction and speed when adding and just drag and drop them in). Particles: Build a basic program in XNA in which you can select different colours and create particle effects of those colours on screen by clicking and dragging the mouse around (simple particles emerging from where the mouse is clicked). Add functionality where you can change the amount of particles to be drawn and the speed at which they travel and when they expire. Possibly implement gravity and wind after part 3 is complete. Physics: Build a basic program in XNA where you have a ball in a set 2D environment, a wind slider, and a gravity slider (can go to negative for reverse gravity). You can click to drag the ball around and release to throw it and, depending on what you do, the ball interacts with the environment. Implement other shapes afterwards. Random 2D terrain generation: Build a basic program in XNA that randomly generates terrain (including hills, caves, etc) created from 2D tiles. Add functionality that draws the tiles from a tileset and places different tiles depending on where they lie on the y-axis (dirt on top, then rock, then lava, etc). Randomised objects: Build a basic program in XNA that, when a button is clicked, displays a randomised item sprite based on parameters (type, colour, etc) with the images pulled from tilesets. Add the ability to save the item as an object, which stores it in a side-pane where it can be selected for viewing. Movement: Build a basic program in XNA where you can move an object around in an environment (tile-based) with a camera that pans with it. No gravity. Implement gravity and wind, allow the character to jump and fall with some basic platforms. So my question is this: Are there any other commonly used techniques that I should research, and can I get some suggestions as to the effectiveness of the techniques I've chosen to work on (e.g., don't do QuadTree stuff because [insert reason here], or, do [insert technique here] before you start working on particles because [insert reason here])? I hope this is clear enough and please let me know if I can further clarify anything!

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  • Java or Python for internet application?

    - by jpartogi
    In choosing a technology for internet applications where the number of users may scale over time, which one should we consider: Java or Python? What are the considerations in choosing one and not the other? If speed and scalability is our main criteria, which one should we use? We have looked around and it seems that there are more websites that use Python [i.e : Quora, digg, reddit, bitbucket and disqus] than Java. Based on that, can we say that Python is more suitable for internet applications where speed and scalability is the main criteria? However we have browsed around and found some comments saying that Java is actually faster than Python. Thank you for your insights.

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  • confusion about transactions and msdtc

    - by muhan
    I have some basic confusion about how transactions and msdtc work together. I have a basic server/client winforms app. The app uses transactionscope to encapsulate several sql commands that are executed on the sql server. The app seemed to work fine when I enabled msdtc network access on the server only. Then one day it stopped working saying network access was not enabled. Now it seems that I have to enable msdtc network access on both the client computer and server for transactionscope to work. Does the client or server msdtc service do the transaction work? Or maybe its both? Does anyone have guidance on whether msdtc network access is needed on both client and server or just server?

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  • Interview

    OTN's Justin Kestelyn talks with Richard Sarwal and Leng Leng Tan of Oracle product development about Oracle Enterprise Manager 10g Release 5.

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  • Interview

    Duncan Mills, senior director of product management at Oracle, talks about the recent release of Oracle Enterprise Pack for Eclipse 11g.

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  • "Interview"

    Thomas Kurian, senior vice president, Oracle Fusion Middleware, talks about Oracle’s acquisition of BEA.

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  • Enable File sharing in Windows Vista

    - by LiveEn
    There seems to be a problem in my Windows Vista.. In the network and sharing centre only the network discovery is visible. I cant find a option for file sharing as mentions in other websites. There is no folder sharing option on any folder. Can someone please tell me how to enable file sharing in my Windows Visa? i cant share any of my file in the network.

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  • E160 ubuntu 12.04 can't detect the modem

    - by Matt
    i've got problem with e160 on ubuntu 12.04. I'cant configure network manager and connect because NM can't see the e160. I;ve tried lot of solutions with no result. ateusz@mateusz-Aspire-5738:~$ sudo usb_modeswitch -v 0x12d1 -p 0x1003 -H [sudo] password for mateusz: aLooking for default devices ... found matching product ID adding device Found device in default mode, class or configuration (1) Accessing device 002 on bus 001 ... Getting the current device configuration ... OK, got current device configuration (1) Using first interface: 0x00 Using endpoints 0x01 (out) and 0x82 (in) Not a storage device, skipping SCSI inquiry USB description data (for identification) ------------------------- Manufacturer: HUAWEI Technology Product: HUAWEI Mobile Serial No.: not provided ------------------------- Sending Huawei control message ... OK, Huawei control message sent - Run lsusb to note any changes. Bye. Dmesg [ 521.480062] usb 1-4: reset high-speed USB device number 4 using ehci_hcd [ 521.617792] option 1-4:1.1: GSM modem (1-port) converter detected [ 521.617945] usb 1-4: GSM modem (1-port) converter now attached to ttyUSB0 [ 521.618062] option 1-4:1.0: GSM modem (1-port) converter detected [ 521.618232] usb 1-4: GSM modem (1-port) converter now attached to ttyUSB1 [ 530.840276] option: option_instat_callback: error -108 [ 530.840455] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1 [ 530.840484] option 1-4:1.0: device disconnected [ 537.680378] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0 [ 537.680398] option 1-4:1.1: device disconnected [ 537.792088] usb 1-4: reset high-speed USB device number 4 using ehci_hcd [ 537.929549] option 1-4:1.1: GSM modem (1-port) converter detected [ 537.929702] usb 1-4: GSM modem (1-port) converter now attached to ttyUSB0 [ 537.929818] option 1-4:1.0: GSM modem (1-port) converter detected [ 537.929993] usb 1-4: GSM modem (1-port) converter now attached to ttyUSB1 [ 547.224294] option: option_instat_callback: error -108 [ 547.224470] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1 [ 547.224511] option 1-4:1.0: device disconnected [ 556.988066] tty_ldisc_hangup: waiting (usb-storage) for ttyUSB0 took too long, but we keep waiting... [ 558.990663] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0 [ 558.990698] option 1-4:1.1: device disconnected [ 559.100068] usb 1-4: reset high-speed USB device number 4 using ehci_hcd [ 559.241293] option 1-4:1.1: GSM modem (1-port) converter detected [ 559.241446] usb 1-4: GSM modem (1-port) converter now attached to ttyUSB0 [ 559.241565] option 1-4:1.0: GSM modem (1-port) converter detected [ 559.241739] usb 1-4: GSM modem (1-port) converter now attached to ttyUSB1 [ 568.728283] option: option_instat_callback: error -108 [ 568.728466] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1 [ 568.728496] option 1-4:1.0: device disconnected lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 003: ID 064e:a103 Suyin Corp. Acer/HP Integrated Webcam [CN0314] Bus 005 Device 002: ID 09da:c20a A4 Tech Co., Ltd Bus 001 Device 002: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem / E230/E270/E870 HSDPA/HSUPA Modem

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  • Bad FPS for smaller size (OpenGL ES with SDL)

    - by ber4444
    If you saw my other question, well, there is still a little problem: Click here to watch on youtube Basically, the frame rate is very bad on the actual device, where for some reason the animation is scaled (it looks like the left side on the video). It is quite fast on the simulator where it is not scaled (right side). For a test, I submitted this new changeset that hard-codes the smaller size (plus increases the point size for HII regions to make the dust clouds more visible), and as you see in the video, now it is slow even in the simulator (left side shows the small size, right side shows the original size -- otherwise the code is the same). I'm clueless why it's soooo slow with a smaller galaxy, in fact it should be FASTER. As for general speed optimization (which is not strictly part of my question but is closely related to it, esp. if we need a workaround to speed things up), some initial ideas: reducing the number of items drawn may affect the appearance negatively but screen resolution could be reduced there are too many glBegin(GL_POINTS)/glEnd() blocks, we could draw more than just a single star at once

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